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Kommittébeteckning: SIS/TK 254 (Järnväg, tunnelbana och spårväg)
Källa: CEN
Svarsdatum: den 13 aug 2020
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This European Standard specifies the minimum requirements for measuring systems fitted on Track Construction and Maintenance Machines to give an evaluation of track geometry quality when they measure any one or more of the parameters described in EN 13848-1. This European Standard also gives the acceptable differences from EN 13848-1 when using chord measurements. This European Standard does not specify: - requirements for vehicle acceptance; - criteria for track works acceptance; - requirements for Urban Rail Systems. However, parts of it can be used as a reference until a specific Standard is published. Only systems put into service after the standard comes into force are concerned.

Kommittébeteckning: SIS/TK 254 (Järnväg, tunnelbana och spårväg)
Källa: CEN
Svarsdatum: den 31 aug 2020
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This document specifies the methods for the implementation of ballastless track system designs and the criteria for the acceptance of works concerning construction of ballastless track systems. It does not include any criteria for inspecting, maintaining, repairing and replacing ballastless track systems during operation.

Kommittébeteckning: SIS/TK 539 (Schakt och fyllning för anläggningsbyggande)
Källa: CEN
Svarsdatum: den 1 sep 2020
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This document defines the principle and the methods for the determination of the "degradability coefficient" of rocky material.

The degradability coefficient IDG distinguishes the behaviour of certain rocky material and is used to show the change in the geotechnical characteristics (particle size, clay content, plasticity, etc.) in relation to the characteristics seen immediately following excavation.

Changes in the particle size occur due to the combined action of climatic or geohydrological elements (frost, soaking-drying cycles) and mechanical stress to which it is subjected. In the case of degradable rocky material, this leads to a fairly significant and continuous reduction in the mechanical and geometric characteristics of the works in which they are used.

The two methods developed in this document for the determination of IDG are not equivalent, so any result obtained by this document can refer to the method used.

Kommittébeteckning: SIS/TK 539 (Schakt och fyllning för anläggningsbyggande)
Källa: CEN
Svarsdatum: den 1 sep 2020
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This document defines the principle and the methods for the determination of the "fragmentability coefficient" of rocky material.

The fragmentability coefficient IFR distinguishes the behaviour of certain rocky material and is used to show the change in particle size from the moment than the material is excavated through to its subsequent implementation and in certain cases during its whole service life. Changes in the particle size occur due to the structural resistance of the rock being unable to support the mechanical stress to which it is subjected during its implementation and use.

Kommittébeteckning: SIS/TK 539 (Schakt och fyllning för anläggningsbyggande)
Källa: CEN
Svarsdatum: den 1 sep 2020
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This document describes the reference method for the determination of the methylene blue value (VBS) in soils and rocks for earthworks.

The test is based on measuring the quantity of methylene blue that can be adsorbed by the material suspended in water. This quantity of absorbed methylene blue is reported by direct proportionality to the 0/50 mm ground. The soil blue value is directly related to the specific surface area of the soil particles or rocky material.

NOTE The VBS test uses common equipment and calibration as the methylene blue test MB for aggregates (EN 933-9), but the test applies to another granular fraction (5 mm for VBS and 2 mm for MB, respectively). Thus, the results obtained between the two tests cannot be compared in the general case.

Kommittébeteckning: SIS/TK 183 (Geoteknik och geokonstruktioner)
Källa: CEN
Svarsdatum: den 7 sep 2020
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This document deals with equipment requirements, the execution of and reporting on the Ménard pressuremeter test.

NOTE This part of ISO 22476 fulfils the requirement for the Ménard pressuremeter test, as part of geotechnical investigation and testing according to EN 1997-1 and EN 1997-2.

The present document describes the procedure for conducting a Ménard pressuremeter test in natural soils, treated or untreated fills and in rocks, either on land or off-shore.

The pressuremeter tests results of this document are suited to a quantitative determination of ground strength and deformation parameters. They may yield lithological information in conjunction with measuring while drilling performed when creating the hole (according to EN ISO 22476-15). They can also be combined with direct investigation (e;g; sampling according to EN ISO 22475-1) or compared with other in situ tests (see EN 1997-2, 2.4.1.4(2) P, 4.1 (1) P and 4.2.3(2) P).

The Ménard pressuremeter test is performed by the radial expansion of a cylindrical probe of a minimum slenderness of 6, placed in the ground (see Figure 1). During the injection of the liquid volume in the probe, the inflation of the measuring cell first brings the outer cover of the probe into contact with the pocket wall and then presses on them resulting in a soil displacement. Pressure applied to, and the associated radial expansion of the probe are measured either by volume or radial transducers and recorded so as to obtain the stress-strain relationship of the soil as tested.

Together with results of investigations with EN ISO 22475-1 being available or at least with identification and description of the ground according to ISO 14688-1 and ISO 14689-1 obtained during the pressuremeter test operations, the tests results of this document are suited for the quantitative determination of a ground profile, including

— the Ménard pressuremeter modulus EM,

— the Ménard pressuremeter limit pressure pLM and

— the Ménard creep pressure pf.

This Standard refers to a probe historically described as the 60 mm (also called BX) G type probe with a pressure limitation of 5 MPa. If specified by the relevant authority or agreed for a specific project by the relevant parties, a higher pressure limitation may be required.

NOTE 1 G type probe refers to probes with an external cover creating guard cells (see 4.2).

NOTE 2 Ménard pressuremeter tests can be carried out with other diameter probes such as 32, 44 and 76 mm probes.

NOTE 3 Example of other probe and pocket drilling dimensions are indicated below:

 

Ämnesområden: Vägbyggnad. Utförande
Kommittébeteckning: SIS/TK 225 (Anläggningsmaskiner och gruvdrift)
Källa: CEN
Svarsdatum: den 23 sep 2020
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This part of ISO 20500, together with part 1, deals with all significant hazards for road-milling machines 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 Annex D).

The requirements of this part are complementary to the common requirements formulated in ISO 20500-1.

This document does not repeat the requirements from ISO 20500-1, but adds or replaces the requirements for application for road-milling machines.

The following significant and relevant hazards are not covered in this document:

— Lightning.

Ämnesområden: Vägbyggnad. Utförande
Kommittébeteckning: SIS/TK 225 (Anläggningsmaskiner och gruvdrift)
Källa: CEN
Svarsdatum: den 23 sep 2020
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This part of ISO 20500, together with part 1, deals with all significant hazards for soil-stabilising machines and recycling machines 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 Annex C).

The requirements of this part are complementary to the common requirements formulated in ISO 20500-1.

This document does not repeat the requirements from ISO 20500-1, but adds or replaces the requirements for application for soil-stabilising machines and recycling machines.

The following significant and relevant hazards are not covered in this document:

— Lightning.

Ämnesområden: Vägbyggnad. Utförande
Kommittébeteckning: SIS/TK 225 (Anläggningsmaskiner och gruvdrift)
Källa: CEN
Svarsdatum: den 23 sep 2020
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This part of ISO 20500, together with part 1, deals with all significant hazards for compaction machines 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 Annex D).

The requirements of this part are complementary to the common requirements formulated in ISO 20500-1.

This document does not repeat the requirements from ISO 20500-1, but adds or replaces the requirements for application for compaction machines. Rollers as defined in ISO 6165 are excluded from the scope of this standard.

The following significant and relevant hazards are not covered in this document:

— Lightning.

Ämnesområden: Vägbyggnad. Utförande
Kommittébeteckning: SIS/TK 225 (Anläggningsmaskiner och gruvdrift)
Källa: CEN
Svarsdatum: den 23 sep 2020
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This part of ISO 20500, together with part 1, deals with all significant hazards for mobile feeders 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 Annex C).

The requirements of this part are complementary to the common requirements formulated in ISO 20500-1.

This document does not repeat the requirements from ISO 20500-1, but adds or replaces the requirements for application for mobile feeder.

The following significant and relevant hazards are not covered in this document:

— Lightning.

Ämnesområden: Vägbyggnad. Utförande
Kommittébeteckning: SIS/TK 225 (Anläggningsmaskiner och gruvdrift)
Källa: ISO
Svarsdatum: den 23 sep 2020
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This document specifies the common safety requirements for mobile road construction machinery. The ISO 20500 series is applicable to mobile road construction machinery as listed in Annex A.

NOTE 1 For travelling on public roads, the national roading regulations apply (e.g. braking, steering, lighting).

This document deals with the significant hazards common to mobile road construction machinery, 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.

NOTE 2 The requirements specified in this document are common to two or more families of mobile road construction machinery.

This document gives safety requirements for all types of mobile road construction machinery and shall be used in conjunction with one of parts 2 to 7. These machine specific parts do not repeat the requirements from part 1 but add to or replace (supplement or modify) the requirements for the type of mobile road construction machinery in question.

This document does not deal with hazards related to transport of dangerous goods by road.

This document specifies the appropriate technical measures to eliminate or reduce risks arising from the significant hazards as specified in Annex H.

This International Standard applies to machines which are manufactured after the date of publication of this International Standard by ISO.

Ämnesområden: Vägbyggnad. Utförande
Kommittébeteckning: SIS/TK 225 (Anläggningsmaskiner och gruvdrift)
Källa: CEN
Svarsdatum: den 23 sep 2020
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This part of ISO 20500, together with part 1, deals with all significant hazards for paver-finisher 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 Annex D).

The requirements of this part are complementary to the common requirements formulated in ISO 20500-1.

This document does not repeat the requirements from ISO 20500-1, but adds or replaces the requirements for application for paver-finisher.

The following significant and relevant hazards are not covered in this document:

— Lightning.

Ämnesområden: Vägbyggnad. Utförande
Kommittébeteckning: SIS/TK 225 (Anläggningsmaskiner och gruvdrift)
Källa: CEN
Svarsdatum: den 23 sep 2020
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This part of ISO 20500, together with part 1, deals with all significant hazards for slipform paver and texture curing machines 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 Annex D).

The requirements of this part are complementary to the common requirements formulated in ISO 20500-1.

This document does not repeat the requirements from ISO 20500-1, but adds or replaces the requirements for application for paver-finisher.

The following significant and relevant hazards are not covered in this document:

— Lightning.