ASTM D5888-2006(2016) 0859 Standard Guide for Storage and Handling of Geosynthetic Clay Liners《土工合成黏土垫的存储和处理标准指南》.pdf

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1、Designation: D5888 06 (Reapproved 2016)Standard Guide forStorage and Handling of Geosynthetic Clay Liners1This standard is issued under the fixed designation D5888; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last r

2、evision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This guide covers guidelines for the proper storage andhandling of geosynthetic clay liners received at the job site bythe e

3、nd user.1.2 This guide contains general guidelines and is not in-tended to replace project-specific requirements as found in thecontract drawings or specifications. In the event of a conflict,the requirements of the project specifications will supersede therequirements of this practice.1.3 The value

4、s given in SI units are to be regarded as thestandard. The inch-pound units given in parentheses are forinformation only.1.4 This guide offers an organized collection of informationor a series of options and does not recommend a specificcourse of action. This document cannot replace education orexpe

5、rience and should be used in conjunction with professionaljudgement. Not all aspects of this guide may be applicable inall circumstances. This ASTM standard is not intended torepresent or replace the standard of care by which theadequacy of a given professional service must be judged, norshould this

6、 document be applied without consideration of aprojects many unique aspects. The word “Standard” in thetitle of this document means only that the document has beenapproved through the ASTM consensus process.1.5 This standard does not purport to address all of thesafety concerns, if any, associated w

7、ith its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D4439 Terminology for Geosynthetics3. Terminology3.1 Definitions:

8、3.1.1 core pipe, na rigid pipe or rod inserted through thecore of a GCL roll. Each end of the pipe is connected to a chainor lifting strap which attaches to equipment for GCLunloading, on-site handling, and installation.3.1.2 geosynthetic clay liner (GCL), na manufacturedhydraulic barrier consisting

9、 of clay bonded to a layer or layersof geosynthetics.3.1.3 spreader bar, na steel beam used in conjunction withthe core pipe that prevents the lifting chains or straps fromchafing against the ends of the GCL roll.3.1.4 stinger, na rigid pipe or rod with one end directlyconnected to a forklift or oth

10、er equipment. The opposite end ofthe stinger can then be inserted through the GCL roll core suchthat the equipment is able to unload, handle, or install the GCL.3.1.5 For definitions of other geosynthetic terms used in thispractice, refer to Terminology D4439.4. Significance and Use4.1 For optimum p

11、erformance, GCLs must be stored andhandled prior to their installation in a manner that does notimpact their physical properties. Adherence to these storageand handling guidelines will help to ensure that acceptableGCL performance will be achieved.5. Procedure5.1 Receiving and Handling GCL at the Jo

12、b Site:5.1.1 The GCLs are packaged in individual rolls and aretypically delivered to the job site in trucks. Each roll isindividually wrapped and labeled by the GCL manufacturer.Prior to unloading the rolls, make a visual examination of theshipment in order to identify any damage that may haveoccurr

13、ed in transit to the site. Record and report any immedi-ately visible or suspected damage to the GCL rolls immediatelyto the GCL carrier and to the supplier. Tag, mark, and segregatedamaged rolls.5.1.2 Unloading the rolls from the delivery vehicle must bedone in manner that prevents damage to the GC

14、L and itspackaging.NOTE 1A pipe or solid bar of sufficient strength to support the fullweight of the GCL roll without significant bending should be used for all1This guide is under the jurisdiction ofASTM Committee D35 on Geosyntheticsand is the direct responsibility of Subcommittee D35.04 on Geosyn

15、thetic ClayLiners.Current edition approved June 1, 2016. Published June 2016. Originallyapproved in 1995. Last previous edition approved in 2011 as D5888 06(2011).DOI: 10.1520/D5888-06R16.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at service

16、astm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1unloading and handling activities. The diameter of the pipe

17、 should besmall enough to be easily inserted through the core of the GCL.High-strength straps or chains should link the ends of the core pipe to theends of the spreader bar facilitate lifting the roll with a backhoe or otherequipment. Care must be taken to ensure that the lifting straps/chains donot

18、 rub against the GCL.5.1.2.1 Alternately, the GCL may be unloaded and handledusing a “stinger” bar protruding from the front end of a forkliftor other equipment. The stinger should be at least three fourthsthe length of the core and also must be capable of supportingthe full weight of the GCL withou

19、t significant bending.5.1.2.2 If recommended by the manufacturer, a sling han-dling method utilizing appropriate loading straps can be used.5.1.3 Under no circumstances should the GCL rolls bedragged, lifted by one end, pushed to the ground from thedelivery vehicle, or otherwise unloaded in a fashio

20、n that coulddamage the GCL.5.1.4 Immediately repair any tears in the packaging discov-ered during unloading activities using tape and plastic sheetingas necessary to restore a waterproof protective barrier aroundthe GCL. Examine the GCL itself for damage wherever tornpackaging is observed.5.2 Storin

21、g the GCL at the Job Site:5.2.1 Store GCL rolls in their original, unopened packagingin a location away from construction traffic but sufficientlyclose to the active work area to minimize handling. Thedesignated storage area should be level, dry, well-drained,stable, and should protect the GCL from:

22、5.2.1.1 Precipitation,5.2.1.2 Standing water,5.2.1.3 Ultraviolet radiation,5.2.1.4 Chemicals,5.2.1.5 Open flames and welding sparks,5.2.1.6 Temperatures in excess of 71C (160F),5.2.1.7 Vandalism, animals, and5.2.1.8 Any other environmental condition that could im-pact the physical properties of the

23、GCL.5.2.2 To facilitate the installation process, store the GCLsuch that it is protected from freezing.5.2.3 Always store GCL rolls lying flat, sufficiently sup-ported as to not cause localized contact points. Rolls may beplaced on the ground if ponding of water in the storage area isprevented. It i

24、s recommended that the rolls be placed on blocksor pallets of sufficient quantity so as to have at least 50% of therolls evenly supported (see Fig. 1). The rolls may be stackedupon one another, provided they are placed in a manner thatprevents them from sliding or rolling from the stack. Therecommen

25、ded stack height is three rolls. The height of thestack should be limited to that at which safe access is providedto equipment and laborers, and at which roll cores at thebottom of the stack are not distorted or crushed.5.2.4 If the integrity of the GCL packaging has not beenaffected during the ship

26、ping and unloading processes, and ifthe storage requirements listed herein are achieved, then therolls may be stored on site with a waterproof tarpaulin orplastic sheet placed over the GCL stockpile. Enclosed indoorstorage is preferred if the GCLrolls are to be stored for the longterm.6. Keywords6.1

27、 GCL; geosynthetic clay liner; handling; storageASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights,

28、 and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for rev

29、ision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you

30、 shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be

31、obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 1 GCLs Stored Off the Ground and Evenly Supported OnPalletsD5888 06 (2016)2