DIN EN 13719-2016 Geosynthetics - Determination of the long term protection efficiency of geosynthetics in contact with geosynthetic barriers German version EN 13719 2016《土工合成材料 接触.pdf

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1、November 2016 English price group 10No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 59.080.70; 91.100.50!%p“2587793

2、www.din.deDIN EN 13719Geosynthetics Determination of the long term protection efficiency of geosynthetics in contact with geosynthetic barriers;English version EN 13719:2016,English translation of DIN EN 13719:2016-11Geokunststoffe Bestimmung der langfristigen Schutzwirksamkeit von Geokunststoffen i

3、m Kontakt mit geosynthetischen Dichtungsbahnen;Englische Fassung EN 13719:2016,Englische bersetzung von DIN EN 13719:2016-11Gosynthtiques Dtermination de lefficacit de protection long terme des gosynthtiques en contact avec les gomembranes;Version anglaise EN 13719:2016,Traduction anglaise de DIN EN

4、 13719:2016-11SupersedesDIN EN 13719:200212www.beuth.deDocument comprises 18 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.11.16 DIN EN 13719:2016-11 2 A comma is used as the decimal marker. National foreword This document (E

5、N 13719:2016) has been prepared by Technical Committee CEN/TC 189 “Geosynthetics (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was DIN-Normenausschuss Textil und Textilmaschinen (DIN Standards Committee Textiles and Textile Machinery), Working Committee NA 106-

6、01-11 AA Geotextilien und Geokunststoffe. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 7619-1 DIN ISO 7619-1 Amendments This standard differs from DIN EN 13719:2002-12 as follows: a) the title of the standard has been changed to read “G

7、eosynthetics Determination of the long term protection efficiency of geosynthetics in contact with geosynthetic barriers”; b) the term “geotextiles and geotextile-related products” has been replaced throughout the text by “geosynthetics”; c) normative references have been updated; d) Clause 5 “Appar

8、atus” has been completely revised, and Subclauses 5.9 and 5.10 have been deleted; e) Subclauses 8.2 and 8.8 have been deleted; f) Figure 3 has been deleted; g) in Clause B.7 “Procedure”, additional and more detailed specifications for the aggregate used in accordance with Subclause 8.1 have been inc

9、luded; h) in Clause B.7 “Procedure”, specifications for calculating the overburden pressure have been added. Previous editions DIN EN 13719: 2002-12 DIN EN 13719:2016-11 3 National Annex NA (informative) Bibliography DIN ISO 7619-1, Rubber, vulcanized or thermoplastic Determination of indentation ha

10、rdness Part 1: Durometer method (Shore hardness) DIN EN 13719:2016-11 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13719 April 2016 ICS 59.080.70; 91.100.50 Supersedes EN 13719:2002English Version Geosynthetics - Determination of the long term protection ef

11、ficiency of geosynthetics in contact with geosynthetic barriers Gosynthtiques - Dtermination de lefficacit de protection long terme des gosynthtiques en contact avec les gomembranes Geokunststoffe - Bestimmung der langfristigen Schutzwirksamkeit von Geokunststoffen im Kontakt mit geosynthetischen Di

12、chtungsbahnen This European Standard was approved by CEN on 20 February 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibl

13、iographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the respon

14、sibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Repu

15、blic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMA

16、LISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13719:2016 E2 Contents Page European foreword . 4 1 Scope 5 2 Normative r

17、eferences 5 3 Terms and definitions . 5 4 Principle . 6 5 Apparatus . 6 5.1 Cylinder. 6 5.2 Lower steel plate . 6 5.3 Dense rubber pad 6 5.4 Lead sheet 6 5.5 Simulated standard aggregate 6 5.6 Applied stress . 6 5.7 Timing device . 6 5.8 Deformation measurement . 6 6 Specimen 8 6.1 Sampling . 8 6.2

18、Number and dimensions of specimens . 8 7 Conditioning 8 8 Procedure. 8 9 Calculation . 9 10 Test report . 9 Annex A (normative) Determination of the deformation characteristics of the lead sheet used for recording local strains 10 A.1 Principle 10 A.2 Apparatus 10 A.3 Specimens . 10 A.4 Procedure 10

19、 A.5 Acceptance criteria 11 A.6 Test report 11 Annex B (informative) Performance Test 12 B.1 Scope . 12 B.2 Definition 12 B.3 Principle 12 B.4 Apparatus 12 B.5 Specimens . 12 B.6 Conditioning . 12 B.7 Procedure 12 EN 13719:2016 (E) DIN EN 13719:2016-11 3 B.8 Calculation. 13 B.9 Test report 14 EN 137

20、19:2016 (E) DIN EN 13719:2016-11 4 European foreword This document (EN 13719:2016) has been prepared by Technical Committee CEN/TC 189 “Geosynthetics”, the secretariat of which is held by NBN. This European Standard shall be given the status of a national standard, either by publication of an identi

21、cal text or by endorsement, at the latest by October 2016, and conflicting national standards shall be withdrawn at the latest by October 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held r

22、esponsible for identifying any or all such patent rights. This document supersedes EN 13719:2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyp

23、rus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the Unite

24、d Kingdom. EN 13719:2016 (E) DIN EN 13719:2016-11 5 1 Scope This European Standard is an index test used to determine the efficiency with which a geosynthetic product will protect a geosynthetic barrier or other contact surface against the mechanical long term effects of static point loads. The test

25、 is performed on the geosynthetic product in isolation. It measures the strains experienced by a geosynthetic product in contact with a deformable pad. NOTE Other properties relevant to the protection of geosynthetic barriers against differing actions are covered by other standards, e.g. dynamic per

26、foration is covered in EN ISO 13433. A related performance test simulating specific site conditions is described in Annex B (informative). 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For d

27、ated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12588, Lead and lead alloys Rolled lead sheet for building purposes EN ISO 139, Textiles Standard atmospheres for conditioning and testing (IS

28、O 139) EN ISO 9862, Geosynthetics Sampling and preparation of test specimens (ISO 9862) EN ISO 10320, Geotextiles and geotextile-related products Identification on site (ISO 10320) ISO 7619-1, Rubber, vulcanized or thermoplastic Determination of indentation hardness Part 1: Durometer method (Shore h

29、ardness) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 local strain difference between the deformed length (ld) of a straight line between two points on either side of a deformation and the undeformed length (lu) between the same two points

30、 divided by the undeformed length (see Figure 1) Key 1 limit of deformation Figure 1 Local strain measurement of a single deformation EN 13719:2016 (E) DIN EN 13719:2016-11 6 4 Principle Load is applied through a simulated standard aggregate on to the geosynthetic specimen, which is supported on a s

31、imulated standard subgrade for a standard time. The local strain in the lower surface of the geosynthetic is measured and used to determine the protection efficiency. 5 Apparatus 5.1 Cylinder A smooth sided steel cylinder having an internal diameter between 300 mm and 500 mm. NOTE The cylinder can b

32、e in sections bolted together at flanged joints to facilitate setting up and dismantling. 5.2 Lower steel plate 20 mm minimum thickness mild steel plate with a diameter 4 mm less than that of the cylinder with a tolerance of 1 mm to allow it to vertically move freely within the cylinder. The lower s

33、teel plate shall be supported in a way that the effective normal stress can be measured to an accuracy of 1 %. 5.3 Dense rubber pad A (25 1) mm thickness rubber pad having a diameter similar to the lower steel plate and a hardness of (50 5) Shore A, determined in accordance with ISO 7619-1. The rubb

34、er pad should be checked for hardness on a grid no greater than 20 mm at intervals not exceeding 12 months. If the pad is outside the hardness tolerance at any location or exhibits signs of permanent mechanical damage, it shall not be used. 5.4 Lead sheet A circular lead disc shall be used. It shall

35、 have a thickness of (1,3 0,1) mm, grade 3 lead to EN 12588 or similar, with deformation characteristics and thickness in accordance with the requirements of Annex A and with a diameter similar to that of the lower steel plate. Prior to incorporation in the test the lead disc shall have a flatness s

36、uch that a gauge of 0,05 mm cannot be inserted between the disc and a straight edge placed across any diameter. 5.5 Simulated standard aggregate 20 mm diameter steel balls to a minimum depth of 150 mm. The balls shall not show any visible signs of damage. 5.6 Applied stress Means of constantly apply

37、ing the required uniform normal stresses to an accuracy of 5 % as registered by the load cells or pressure gauges beneath the lower steel plate over a period of up to 1000 h. 5.7 Timing device Means of timing the duration of the test accurate to 1 % of the test duration. 5.8 Deformation measurement

38、Means of measuring the deformed length and undeformed length of a depression in the lead plate. Simultaneous measurement horizontally and vertically to an accuracy of 0,01 mm. If a dial gauge is to be used the tip in contact with the metal sheet shall have a diameter of (2,0 0,2) mm. EN 13719:2016 (

39、E) DIN EN 13719:2016-11 7 Key 1 applied load 2 cylinder 3 geotextile separator 4 simulated standard aggregate 5 geosynthetic test specimen 6 lead sheet 7 load cells 8 upper and lower steel plates 9 dense rubber pad 10 sand Figure 2 Test apparatus EN 13719:2016 (E) DIN EN 13719:2016-11 8 6 Specimen 6

40、.1 Sampling Take samples of the geosynthetic in accordance with EN ISO 9862. 6.2 Number and dimensions of specimens Cut three specimens from the sample each with a circular diameter similar to that of the lower steel plate. If the material is known to have different characteristics on each face (e.g

41、. physical characteristics as a result of the manufacturing process) then select the face to be placed uppermost and record in the test report. 7 Conditioning Condition and test the geosynthetic specimens in the standard atmosphere of (20 2) C and (65 5) % relative humidity, as defined in EN ISO 139

42、. The specimens can be considered to have been conditioned when the change in mass of the specimen in successive weighings made at intervals of not less than 2 h does not exceed 0,25 % of the mass of the test specimens. Conditioning and/or testing in the standard atmosphere may be omitted when it ca

43、n be shown that results obtained for the same type of product (both structure and polymer type) are not affected by changes in temperature and humidity exceeding the limits. 8 Procedure 8.1 Assemble the apparatus and build up the layers as shown in Figure 2. The simulated aggregate should be placed

44、en masse on the specimen. Placing the pieces of the simulated aggregate individually is not permitted. 8.2 Gradually apply increasing stress over a maximum period of 1 h up to 300 kN/m2, as registered by the load cells or pressure gauges beneath the lower steel plate. Start timing and maintain the r

45、egistered stress at (300 15) kN/m2, recording stress and temperature for (100 1) h, at intervals of (1,0 0,1) h for the first 6 h and then every (24 1) h for the duration of the test, then dismantle the apparatus and carefully recover the geosynthetic and the lead sheet. 8.3 Examine the geosynthetic

46、 and record the number of holes if any through the geosynthetic together with any significant physical damage. 8.4 Examine the lead sheet and select the three deformations with the greatest strains. Do not select any deformation with any part closer than 25 mm to the edge of the sheet. For each defo

47、rmation, select two axes at right angles and on each axis mark the limit of the deformation. Defining the limit of the deformation should be done accurately because the difference between the deformed axis length and the undeformed axis length is small. Using the deformation measuring device start a

48、t one edge of the deformation and work along one of the axes. Determine the vertical displacement correct to 0,01 mm at (3,0 0,20) mm horizontal intervals to the edge of the deformation. The edge of the deformation is defined as the point where two consecutive readings 3 mm apart have a vertical hei

49、ght difference of less than or equal to 0,06 mm. 8.5. Repeat the measuring procedure along the second axis and then repeat the whole measuring procedure on both axes of the remaining two deformations. EN 13719:2016 (E) DIN EN 13719:2016-11 9 Alternatively direct local strain measurements may be made using calibrated laser or optical scanning instruments. Deformation measurement should be completed within 24 h of removin