1、Designation: D 6711 01 (Reapproved 2008)Standard Practice forSpecifying Rock to Fill Gabions, Revet Mattresses, andGabion Mattresses1This standard is issued under the fixed designation D 6711; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers the sizes and quality of rock to fillgabions and mattresses. The term matt
3、ress as used in thisstandard shall include the terminology of gabion mattressesand revet mattresses used in Specifications A 974 and A 975.1.2 This practice does not cover the sizes and quality of rockfor other erosion control uses such as riprap or drainfall.1.3 This practice does not cover the mat
4、erial properties orconstruction of gabions or mattresses.1.4 The values in this practice are in English units and are tobe regarded as the standard. Si units are given.1.5 This practice offers a set of instructions for performingone or more specific operations. This document cannot replaceprofession
5、al judgement. Not all aspects of this practice may beapplicable in all circumstances. This ASTM standard is notintended to represent or replace the standrd of care by whichthe adequacy of a given professional service must be judged,nor should this document be applied without consideration ofa projec
6、ts many unique aspects. The word “Standard” in thetitle of this document means only that the document has beenapproved through the ASTM consensus process.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of t
7、his 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:2A 974 Specification for Welded Wire Fabric Gabions andGabion Mattresses (Metallic-Coated or Polyvinyl Chloride(PVC) Co
8、ated)A 975 Specification for DoubleTwisted Hexagonal MeshGabions and Revet Mattresses (MetallicCoated SteelWire or Metallic-Coated Steel Wire With Poly(VinylChloride) (PVC) Coating)D 4992 Practice for Evaluation of Rock to be Used forErosion ControlD 5519 Test Methods for Particle Size Analysis of N
9、aturaland Man-Made Riprap Materials3. Terminology3.1 gabion, na wire mesh container of variable size andinterconnected with other similar containers. It is filled withrock to form flexible, permeable, monolithic structures.3.2 mattress, na wire mesh container uniformly parti-tioned into internal cel
10、ls with relatively small height in relationto other dimensions. Mattresses have smaller mesh openingthan the mesh used for gabions.4. Summary of Practice4.1 The designer shall establish the suitable sizes, weight,and quality of rock for project use, and examine sources toensure that the required roc
11、k is available.4.2 Rock shall be delivered to the work site in a manner tominimize its reduction in sizes (breakdown) during the han-dling of the rock, and then place and secured within theassembled and interconnected gabion or mattress.5. Significance and Use5.1 Gabions and mattresses, described in
12、 SpecificationsA 974 and A 975, are placed on sites for stability and toprevent soil erosion. Their ability to function properly dependson their stability, which is partly dependent upon the rocksfilling them. Rock sizes should be chosed to prevent them fromfalling through the mesh of the gabions or
13、 mattresses. The rockalso has to withstand natural weathering processes during the1This practice is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.25 on Erosion andSediment Control Technology.Current edition approved Jan. 1, 2008. Pu
14、blished February 2008. Originallyapproved in 2001. Last previous edition approved in 2001 as D 6711 01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards
15、 Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.life of the project that would cause it to breakdown to sizessmaller than the wire mesh opening dimensions.6. Bulk Filling Materials6.1 Rock to
16、 fill gabions or mattresses may be any naturaldeposit of the required sizes, or may be crushed rock producedby any suitable method and by the use of any device that yieldsthe required size limits chosen in 7.6.2 Rocks shall be hard, angular to round, durable, and ofsuch quality that they shall not d
17、isintegrate on exposure towater or weathering during the life of the structure. Guidancefor selecting durable rock is given in Practice D 4992.7. Standard Sizes of Rock7.1 Guidance for measurement of rock sizes is given in TestMethod D 5519. Sizes of rock to fill gabions and mattresses arechosen on
18、the basis of the mesh sizes, the structuress thick-ness, and the limits shown in 7.4. Fabrication of sieves todetermine particle size is given in Test Method D 5519.7.2 Within each range of sizes, the rock shall be largeenough to prevent individua pieces from passing through themesh openings stated
19、in Specifications A 974 and A 975. Eachrange of sizes may allow for a variation of 5% oversize rock bynumber of particles, or 5% undersize rock by number ofparticles, or both.7.3 In all cases, the sizes of any oversize rock shall allow forthe placement of three or more layers of rock within eachgabi
20、on compartment, and two or more layers of rock withineach mattress compartment dependent upon the height of themattresses. In all cases, undersize and oversize rock shall beplaced within the interior of the gabion or mattress compart-ment and shall not be placed on the exposed surface of thestructur
21、e. There shall be a maximum limit of 5% undersize or5% oversize rock, or both, within each gabion or mattresscompartment.7.4 The recommended dimensions of rock are given in thefollowing:.Structure Thickness Rock SizesType of Structure in (m) in (m)Gabion/Revet Mattress 6 (0.17) 35 76127Gabion/Revet
22、Mattress 9 (0.23) 35 76127Gabion/Revet Mattress orGabion12 (0.30) 48 102203Gabion 18 (0.50) 48 1022037.5 Within the table, there shall be a full range of sizesbetween the upper and lower limits.8. Keywords8.1 erosion control; gabions; mattresses; rockASTM International takes no position respecting t
23、he 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, and the riskof infringement of such rights, are entirely their own responsibility.This standard
24、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 revision of this standard or for additional standardsand should be addressed to ASTM International H
25、eadquarters. 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 shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This
26、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 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).D 6711 01 (2008)2
