CEN/TC 151/WG 3 - Drilling equipment - Safety

This European Standard, together with part 1, deals with all significant hazards for foundation equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228-1:2014+A1:2021.
This document does not repeat the requirements from EN 16228-1:2014+A1:2021 but adds or replaces the requirements for application for foundation equipment.
In this document the general term "foundation equipment" covers several different types of machines used for installation and/or extracting by drilling (machines with a rotary torque greater than 35 kNm), driving, vibrating, pushing, pulling or a combination of techniques, or any other way, of:
-   longitudinal foundation elements;
-   soil improvement by vibrating and soil mixing techniques;
-   vertical drainage.
NOTE   Some foundation equipment may have an additional rotary head with a torque less than 35 kNm for pre-drilling applications; this equipment is covered by this standard.
Machines with one or more of the following characteristics are not covered by this standard, but are covered by EN 16228-2:
-   machines that have a main rotary head torque of less than 35 kNm;
-   machines that have multi-directional drilling capability;
-   machines for which adding and removing rods or digging and drilling tools etc. is usually required during the installation/extraction process.
Typically the process of foundation techniques involves the installation of longitudinal elements such as concrete piles, steel beams, tubes and sheet piles, injection elements as tubes and hoses and casings for cast in situ.

This European Standard specifies the common safety requirements for drilling and foundation equipment.
Part 1 of this European Standard deals with the significant hazards common to drilling and foundation equipment (see Annex A), when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (transport, assembly, dismantling, equipment in service and out of service, maintenance, moving on site, storage, disabling and scrapping).
NOTE 1   The requirements specified in this part of the standard are common to two or more families of drilling and foundation equipment.
This document gives safety requirements for all types of drilling and foundation equipment and is intended to be used in conjunction with one of parts 2 to 7. These machine specific parts do not repeat the requirements from part 1 but supplement or modify the requirements for the type of drilling and foundation equipment in question.
For multipurpose machinery, the parts of the standard that cover the specific functions and applications are used, e.g. a drilling machine also used as a piling machine will use the relevant requirements of EN 16228-1, EN 16228-2, and EN 16228-4.
The following machines are excluded from the scope of this standard:
-   tunnelling machines, unshielded tunnel boring machines and rodless shaft boring machines for rock according to EN 16191;
-   raise boring machines;
-   drill rigs used in oil and gas industry;
-   specialized mining machinery and equipment for opencast mining (e.g. rock drill rigs, blast hole drills) (under the scope of CEN/TC 196);
-   all underground mining machinery and equipment for the extraction of solid mineral substances (e.g. rock drill rigs, raise boring machines, shaft boring machines, mining auger boring machines, jumbos) as well as machinery and equipment for underground mine development (under the scope of CEN/TC 196);
-   core drilling machines on stand (covered by EN 12348);
-   hand-held machines (in particular machines covered by ISO 11148-5).
NOTE 2   Specific requirements for offshore applications are not covered by this European Standard.
Where a drilling or foundation equipment of fixed configuration that is not intended to be separated is assembled using a carrier based on earth-moving equipment, agricultural equipment, or a crane, then the completed assembly is !covered by this" standard.
Drilling and foundation equipment within the scope of EN 16228 parts 1 to 6 may include interchangeable auxiliary equipment within the scope of EN 16228-7, either as an integral part of its construction or as interchangeably fitted equipment.
!If drilling and foundation equipment is intended to be used in a potentially explosive atmosphere, or in case of lightning risk, additional requirements will need to be met which are not covered by this document.
This document is not applicable to drilling and foundation equipment manufactured before the date of its publication."

This European Standard, together with part 1, deals with all significant hazards for mobile drill rigs for in soil or soil and rock mixture in civil and geotechnical engineering, "deleted text" when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228 1:2014+A1:2021.
This document does not repeat the requirements from EN 16228 1:2014+A1:2021, but adds or replaces the requirements for application for mobile drill rigs.
In this document the general term "mobile drill rig" covers several different types of machines for use in:
-   civil engineering;
-   geotechnical engineering (including ground investigation, anchoring, soil nailing, mini-piling, ground stabilization, grouting);
-   water well drilling;
-   geothermal installations;
-   landfill drilling;
-   underpinning and tunnelling;
-   for use above ground as well as underground.
Typically, the process of drilling involves the addition of drill rods, tubes, casings or augers etc., normally threaded, as the borehole extends to depth.
NOTE 1   EN 16228-4:2014+A1:2021 covers machines with a rotary torque greater than 35 kNm.
NOTE 2   The term "drill rigs" includes rigs with a separate power pack supplied by the rig manufacturer.
The following machines are excluded from the scope of this document:
-   tunnelling machines, unshielded tunnel boring machines and rodless shaft boring machines for rock according to prEN 16191;
-   raise boring machines;
-   drill rigs used in oil and gas industry;
-   specialized mining machinery and equipment for opencast mining (e.g. rock drill rigs, blast hole drills) (under the scope of CEN/TC 196);
-   all underground mining machinery and equipment for the extraction of solid mineral substances (e. g. rock drill rigs, raise boring machines, shaft boring machines, mining auger boring machines, jumbos) as well as machinery and equipment for underground mine development (under the scope of CEN/TC 196);
-   core drilling machines on stand covered by EN 12348;
-   hand-held machines (in particular machines covered by ISO 11148-5).
This document is not applicable to mobile drill rigs for in soil or soil and rock mixture in civil and geotechnical engineering manufactured before the date of its publication.

This European Standard, together with part 1, deals with all significant hazards for interchangeable auxiliary equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228-1:2014+A1:2021.
This document does not repeat the requirements from EN 16228-1:2014+A1:2021, but adds or replaces the requirements for application for interchangeable auxiliary equipment.
This document specifies the specific safety requirements for interchangeable auxiliary equipment to be used in drilling and foundation operations, connected with drilling and foundation equipment, agricultural equipment and/or earth moving machinery when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer.
Interchangeable auxiliary equipment includes pile installation and extraction equipment, impact hammers, extractors, vibrators, deep vibrators, static pile pushing/pulling devices, rotary percussion hammers, rotary drilling drives, drill mast equipment such as leaders equipped with a drill stem and gears attached to the boom of an excavator and casing oscillators/rotators.
Diaphragm wall cutting tools are dealt with in EN 16228-5:2014+A1:2021.

This European Standard, together with part 1, deals with all significant hazards for diaphragm walling equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228-1:2014+A1:2021.
This document does not repeat the requirements from EN 16228-1:2014+A1:2021, but adds or replaces the requirements for application for diaphragm walling equipment.

This European Standard, together with part 1, deals with all significant hazards for jetting, grouting and injection equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in
EN 16228-1:2014+A1:2021.
This document does not repeat the requirements from EN 16228-1:2014+A1:2021, but adds or replaces the requirements for application for jetting, grouting and injection equipment.
Rigs for drilling, vibrating, pile driving, to be used for preparing holes for these applications are covered by EN 16228-2:2014+A1:2021 and/or EN 16228-4:2014+A1:2021.
Jetting, grouting and injection equipment is used in the preparation, transfer and application of grouting materials used for either:
-   the improvement of ground condition; or
-   the filling of voids e.g. around piles or ground anchors.
Jetting, grouting and injection equipment are constituted by all equipment and installations, operated by hand or electrically, pneumatically, mechanically or hydraulically powered, necessary for the following:
-   mixing, storing, measuring and pumping of substances (cement suspension, mortar or chemical liquids/mixtures);
-   jetting, grouting and injection processes (of/into subsoil) with low, medium or high pressure or vacuum systems;
-   deleted text
-   all control systems, electrical or mechanical pressure and flow recorders, for monitoring the grouting;
-   all jetting, grouting and injection accessories, such as: special tools, lances, rods, sockets, packers, retention clamps and swivel hooks.
This document does not apply to machines and equipment for conveying, spraying and placing concrete and mortar (covered by EN 12001).
This document does not deal with jetting, grouting or injection units intended to use products that generate toxic gases.

This European Standard, together with part 1, deals with all significant hazards for horizontal directional drilling equipment (HDD) when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228-1:2014+A1:2021.
This document does not repeat the requirements from EN 16228-1:2014+A1:2021, but adds or replaces the requirements for application for horizontal directional drills.
A machine is considered a horizontal directional drill if it is designed to drill in a shallow arc for the installation of pipes, conduits, and cables and typically has a drill string entry angle of less than 45° relative to the operating surface of the earth.

This European Standard, together with part 1, deals with all significant hazards for foundation equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228 1:2014
This document does not repeat the requirements from EN 16228 1:2014 but adds or replaces the requirements for application for foundation equipment.
In this document the general term "foundation equipment" covers several different types of machines used for installation and/or extracting by drilling (machines with a rotary torque greater than 35 kNm), driving, vibrating, pushing, pulling or a combination of techniques, or any other way, of:
-   longitudinal foundation elements;
-   soil improvement by vibrating and soil mixing techniques;
-   vertical drainage.
NOTE   Some foundation equipment may have an additional rotary head with a torque less than 35 kNm for pre-drilling applications; this equipment is covered by this standard.
Machines with one or more of the following characteristics are not covered by this standard, but are covered by EN 16228 2:
-   machines that have a main rotary head torque of less than 35 kNm;
-   machines that have multi-directional drilling capability;
-   machines for which adding and removing rods or digging and drilling tools etc. is usually required during the installation/extraction process.
Typically the process of foundation techniques involves the installation of longitudinal elements such as concrete piles, steel beams, tubes and sheet piles, injection elements as tubes and hoses and casings for cast in situ.

This European Standard, together with part 1, deals with all significant hazards for horizontal directional drilling equipment (HDD) when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228 1:2014.
This document does not repeat the requirements from EN 16228 1, but adds or replaces the requirements for application for horizontal directional drills.
A machine is considered a horizontal directional drill if it is designed to drill in a shallow arc for the installation of pipes, conduits, and cables and typically has a drill string entry angle of less than 45° relative to the operating surface of the earth.

This European Standard, together with part 1, deals with all significant hazards for interchangeable auxiliary equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228 1:2014.
This document does not repeat the requirements from EN 16228 1, but adds or replaces the requirements for application for interchangeable auxiliary equipment.
This document specifies the specific safety requirements for interchangeable auxiliary equipment to be used in drilling and foundation operations, connected with drilling and foundation equipment, agricultural equipment and/or earth moving machinery when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer.
Interchangeable auxiliary equipment includes pile installation and extraction equipment, impact hammers, extractors, vibrators, deep vibrators, static pile pushing/pulling devices, rotary percussion hammers, rotary drilling drives, drill mast equipment such as leaders equipped with a drill stem and gears attached to the boom of an excavator and casing oscillators/rotators.
Diaphragm wall cutting tools are dealt with in EN 16228 5.

This European Standard, together with part 1, deals with all significant hazards for jetting, grouting and injection equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228-1:2014
This document does not repeat the requirements from EN 16228-1:2014, but adds or replaces the requirements for application for jetting, grouting and injection equipment.
Rigs for drilling, vibrating, pile driving, to be used for preparing holes for these applications are covered by EN 16228-2:2014 and/or EN 16228-4:2014.
Jetting, grouting and injection equipment is used in the preparation, transfer and application of grouting materials used for either:
-   the improvement of ground condition; or
-   the filling of voids e.g. around piles or ground anchors.
Jetting, grouting and injection equipment are constituted by all equipment and installations, operated by hand or electrically, pneumatically, mechanically or hydraulically powered, necessary for the following:
-   mixing, storing, measuring and pumping of substances (cement suspension, mortar or chemical liquids/mixtures);
-   jetting, grouting and injection processes (of/into subsoil) with low, medium or high pressure or vacuum systems;
-   all types of pressure and wear resistant grout hoses, fittings, quick release coupling with thread or hose connection, ball valves and flexible pipes;
-   all control systems, electrical or mechanical pressure and flow recorders, for monitoring the grouting;
-   all jetting, grouting and injection accessories, such as: special tools, lances, rods, sockets, packers, retention clamps and swivel hooks.
3   Modification to Clause 1, Scope
Last paragraph, delete the indent "- all types of pressure and wear resistant grout hoses, fittings, quick release coupling with thread or hose connection, ball valves and flexible pipes;".
Add the following text at the end of the entire clause:
"This document does not apply to machines and equipment for conveying, spraying and placing concrete and mortar (covered by EN 12001).
This document does not deal with jetting, grouting or injection units intended to use products that generate toxic gases.".

This European Standard, together with part 1, deals with all significant hazards for mobile drill rigs for civil and geotechnical engineering, quarrying and mining when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228 1:2014.
This document does not repeat the requirements from EN 16228 1, but adds or replaces the requirements for application for mobile drill rigs.
In this document the general term "mobile drill rig" covers several different types of machines for use in:
-   civil engineering;
-   geotechnical engineering (including ground investigation, anchoring, soil nailing, mini-piling, ground stabilization, grouting);
-   water well drilling;
-   geothermal installations;
-   landfill drilling;
-   underpinning, tunnelling, mining and quarrying;
-   for use above ground as well as underground.
Typically, the process of drilling involves the addition of drill rods, tubes, casings or augers etc., normally threaded, as the borehole extends to depth.
NOTE 1   For machines with torque greater than 35 kNm see EN 16228-4 initially.
NOTE 2   The term "drill rigs" includes rigs with a separate power pack supplied by the rig manufacturer.
Modification to the Scope:
First paragraph, delete ", quarrying and mining" and add "in soil or soil and rock mixture in" to read as follows:
"This European Standard, together with part 1, deals with all significant hazards for mobile drill rigs for in soil or soil and rock mixture in civil and geotechnical engineering when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).".

This European Standard, together with part 1, deals with all significant hazards for diaphragm walling equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228-1:2014.
This document does not repeat the requirements from EN 16228-1, but adds or replaces the requirements for application for diaphragm walling equipment.

This European Standard specifies the common safety requirements for drilling and foundation equipment.
Part 1 of this European Standard deals with the significant hazards common to drilling and foundation equipment (see Annex A), when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (transport, assembly, dismantling, equipment in service and out of service, maintenance, moving on site, storage, disabling and scrapping).
NOTE 1   The requirements specified in this part of the standard are common to two or more families of drilling and foundation equipment.
This document gives safety requirements for all types of drilling and foundation equipment and is intended to be used in conjunction with one of parts 2 to 7. These machine specific parts do not repeat the requirements from part 1 but supplement or modify the requirements for the type of drilling and foundation equipment in question.
For multipurpose machinery, the parts of the standard that cover the specific functions and applications are used, e.g. a drilling machine also used as a piling machine will use the relevant requirements of EN 16228 parts 1, 2, and 4.
The following machines are excluded from the scope of this standard:
-   tunnelling machines, unshielded tunnel boring machines and rodless shaft boring machines for rock according to prEN 16191;
-   raise boring machines;
-   drill rigs used in oil and gas industry.
NOTE 2   Specific requirements for offshore applications are not covered by this European Standard.
Where a drilling or foundation equipment of fixed configuration that is not intended to be separated is assembled using a carrier based on earth-moving equipment, agricultural equipment, or a crane, then the completed assembly will conform to the requirements specified in this drilling and foundation equipment standard.
Drilling and foundation equipment within the scope of EN 16228 parts 1 to 6 may include interchangeable auxiliary equipment within the scope of EN 16228 part 7, either as an integral part of its construction or as interchangeably fitted equipment.
If drilling and foundation equipment is intended to be used in a potentially explosive atmosphere, additional requirements will need to be met which are not covered by this standard.
Modification to Clause 1:
In the fifth paragraph, last sentence delete the final punctuation of the third item and add the following text: ";
-   specialized mining machinery and equipment for opencast mining (e.g. rock drill rigs, blast hole drills, jumbos) (under the scope of CEN/TC 196);
-   all underground mining machinery and equipment for the extraction of solid mineral substances (e. g. rock drill rigs, raise boring machines, shaft boring machines, mining auger boring machines) as well as machinery and equipment for underground mine development (under the scope of CEN/TC 196);
-   core drilling machines on stand (covered by EN 12348);
-   hand-held machines (in particular machines covered by ISO 11148-5).".
In the sixth paragraph, first sentence, replace "will conform to the requirements specified in this drilling and foundation equipment" with "is covered by this".
Last paragraph, replace with the following text:
"If drilling and foundation equipment is intended to be used in a potentially explosive atmosphere, or in case of lightning risk, additional requirements will need to be met which are not covered by this document.
This document is not applicable to drilling and foundation equipment manufactured before the date of its publication.".

This European Standard, together with part 1, deals with all significant hazards for diaphragm walling equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228 1:2014.
This document does not repeat the requirements from EN 16228 1, but adds or replaces the requirements for application for diaphragm walling equipment.

This European Standard, together with part 1, deals with all significant hazards for jetting, grouting and injection equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228 1:2014
This document does not repeat the requirements from EN 16228 1:2014, but adds or replaces the requirements for application for jetting, grouting and injection equipment.
Rigs for drilling, vibrating, pile driving, to be used for preparing holes for these applications are covered by EN 16228 2:2014 and/or EN 16228 4:2014.
Jetting, grouting and injection equipment is used in the preparation, transfer and application of grouting materials used for either:
—   the improvement of ground condition; or
—   the filling of voids e.g. around piles or ground anchors.
Jetting, grouting and injection equipment are constituted by all equipment and installations, operated by hand or electrically, pneumatically, mechanically or hydraulically powered, necessary for the following:
—   mixing, storing, measuring and pumping of substances (cement suspension, mortar or chemical liquids/mixtures);
—   jetting, grouting and injection processes (of/into subsoil) with low, medium or high pressure or vacuum systems;
—   all types of pressure and wear resistant grout hoses, fittings, quick release coupling with thread or hose connection, ball valves and flexible pipes;
—   all control systems, electrical or mechanical pressure and flow recorders, for monitoring the grouting;
—   all jetting, grouting and injection accessories, such as: special tools, lances, rods, sockets, packers, retention clamps and swivel hooks.

This European Standard, together with part 1, deals with all significant hazards for interchangeable auxiliary equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228 1:2014.
This document does not repeat the requirements from EN 16228 1, but adds or replaces the requirements for application for interchangeable auxiliary equipment.
This document specifies the specific safety requirements for interchangeable auxiliary equipment to be used in drilling and foundation operations, connected with drilling and foundation equipment, agricultural equipment and/or earth moving machinery when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer.
Interchangeable auxiliary equipment includes pile installation and extraction equipment, impact hammers, extractors, vibrators, deep vibrators, static pile pushing/pulling devices, rotary percussion hammers, rotary drilling drives, drill mast equipment such as leaders equipped with a drill stem and gears attached to the boom of an excavator and casing oscillators/rotators.
Diaphragm wall cutting tools are dealt with in EN 16228 5.

This European Standard specifies the common safety requirements for drilling and foundation equipment.
Part 1 of this European Standard deals with the significant hazards common to drilling and foundation equipment (see Annex A), when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (transport, assembly, dismantling, equipment in service and out of service, maintenance, moving on site, storage, disabling and scrapping).
NOTE 1   The requirements specified in this part of the standard are common to two or more families of drilling and foundation equipment.
This document gives safety requirements for all types of drilling and foundation equipment and is intended to be used in conjunction with one of parts 2 to 7. These machine specific parts do not repeat the requirements from part 1 but supplement or modify the requirements for the type of drilling and foundation equipment in question.
For multipurpose machinery, the parts of the standard that cover the specific functions and applications are used, e.g. a drilling machine also used as a piling machine will use the relevant requirements of EN 16228 parts 1, 2, and 4.
The following machines are excluded from the scope of this standard:
   tunnelling machines, unshielded tunnel boring machines and rodless shaft boring machines for rock according to prEN 16191;
   raise boring machines;
   drill rigs used in oil and gas industry.
NOTE 2   Specific requirements for offshore applications are not covered by this European Standard.
Where a drilling or foundation equipment of fixed configuration that is not intended to be separated is assembled using a carrier based on earth-moving equipment, agricultural equipment, or a crane, then the completed assembly will conform to the requirements specified in this drilling and foundation equipment standard.
Drilling and foundation equipment within the scope of EN 16228 parts 1 to 6 may include interchangeable auxiliary equipment within the scope of EN 16228 part 7, either as an integral part of its construction or as interchangeably fitted equipment.
If drilling and foundation equipment is intended to be used in a potentially explosive atmosphere, additional requirements will need to be met which are not covered by this standard.

This European Standard, together with part 1, deals with all significant hazards for foundation equipment when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228 1:2014
This document does not repeat the requirements from EN 16228 1:2014 but adds or replaces the requirements for application for foundation equipment.
In this document the general term “foundation equipment” covers several different types of machines used for installation and/or extracting by drilling (machines with a rotary torque greater than 35 kNm), driving, vibrating, pushing, pulling or a combination of techniques, or any other way, of:
—   longitudinal foundation elements;
—   soil improvement by vibrating and soil mixing techniques;
—   vertical drainage.
NOTE   Some foundation equipment may have an additional rotary head with a torque less than 35 kNm for pre-drilling applications; this equipment is covered by this standard.
Machines with one or more of the following characteristics are not covered by this standard, but are covered by EN 16228 2:
—   machines that have a main rotary head torque of less than 35 kNm;
—   machines that have multi-directional drilling capability;
—   machines for which adding and removing rods or digging and drilling tools etc. is usually required during the installation/extraction process.
Typically the process of foundation techniques involves the installation of longitudinal elements such as concrete piles, steel beams, tubes and sheet piles, injection elements as tubes and hoses and casings for cast in situ.

This European Standard, together with part 1, deals with all significant hazards for mobile drill rigs for civil and geotechnical engineering, quarrying and mining when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228 1:2014.
This document does not repeat the requirements from EN 16228 1, but adds or replaces the requirements for application for mobile drill rigs.
In this document the general term “mobile drill rig” covers several different types of machines for use in:
—   civil engineering;
—   geotechnical engineering (including ground investigation, anchoring, soil nailing, mini-piling, ground stabilization, grouting);
—   water well drilling;
—   geothermal installations;
—   landfill drilling;
—   underpinning, tunnelling, mining and quarrying;
—   for use above ground as well as underground.
Typically, the process of drilling involves the addition of drill rods, tubes, casings or augers etc., normally threaded, as the borehole extends to depth.
NOTE 1   For machines with torque greater than 35 kNm see EN 16228–4 initially.
NOTE 2   The term “drill rigs” includes rigs with a separate power pack supplied by the rig manufacturer.

This European Standard, together with part 1, deals with all significant hazards for horizontal directional drilling equipment (HDD) when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer associated with the whole life time of the machine (see Clause 4).
The requirements of this part are complementary to the common requirements formulated in EN 16228 1:2014.
This document does not repeat the requirements from EN 16228 1, but adds or replaces the requirements for application for horizontal directional drills.
A machine is considered a horizontal directional drill if it is designed to drill in a shallow arc for the installation of pipes, conduits, and cables and typically has a drill string entry angle of less than 45° relative to the operating surface of the earth.

1.1   The general term "Drill Rig" covers several differing types of machines for use in the construction industry, water well drilling industry, mining and quarrying, for use above ground as well as underground and for tunnel construction. The differing tasks determine the choice of drilling method and type of machine. For this reason there are many possible ways to separate drill rigs into different groups, e.g. in accordance with:
-   The task;
-   The drilling method used;
-   The cutting removal method;
-   The type of construction work.
The methods used for drilling can be basically differentiated in percussive and rotary drilling principles.
Percussive drilling is a method by which the hole is produced by crushing the ground or rock at the bottom of the drill-hole by striking it with the drilling tool and removing the cuttings out of the bore-hole.
Rotary drilling is a method in which the drilling tool at the bottom of the borehole is rotated and at the same time, a feed force is applied by a feed system or drill collar. The ground or rock at the bottom of the borehole is crushed or cut by pressure, shear or tensile stress produced by the different drilling tools. The cuttings are periodically or continuously removed out of the bore hole.
Rotary percussive drilling is performed by a piston striking directly on the bit (down the hole hammer drills) or by percussive energy transmitted via a drill string to the bit. The piston is powered by either hydraulic fluid or compressed air.
At the same time the drill bit is rotated either continuously or intermittently.
The cuttings are continuously removed out of the borehole by a flushing medium, air or fluid which is carried to the drilling tool.
Typical examples of drill rigs covered by this standard are:
-   Cable tool drill rig;
-   Pile drill rigs;
-   Pile top drill rig;
-   Raise borer;
-   Reverse circulation drill rig;
-   Rotary and percussive drill rig for underground drilling;
-   Rotary and percussive drill rig

The general term "Drill Rig" covers several differing types of machines for use in the construction industry, water well drilling industry, mining and quarrying, for use above ground as well as underground and tunnel construction.  The differing tasks determine the choice of drilling method and type of machine.  For this reason there are many possible ways to seperate drill rigs into different groups, e.g. in accordance with: - the task; - the drilling method used; - the cutting removal method...