ASTM D5101-2012 Standard Test Method for Measuring the Filtration Compatibility of Soil-Geotextile Systems 《测量土壤-土工织物系统过滤相容性的标准试验方法》.pdf
《ASTM D5101-2012 Standard Test Method for Measuring the Filtration Compatibility of Soil-Geotextile Systems 《测量土壤-土工织物系统过滤相容性的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D5101-2012 Standard Test Method for Measuring the Filtration Compatibility of Soil-Geotextile Systems 《测量土壤-土工织物系统过滤相容性的标准试验方法》.pdf(13页珍藏版)》请在麦多课文档分享上搜索。
1、Designation:D510101 (Reapproved 2006)D510112 Standard Test Method for Measuring the Soil-Geotextile System Clogging Potential by the Gradient RatioFiltration Compatibility of Soil-Geotextile Systems 1 This standard is issued under the xed designation D5101; the number immediately following the desig
2、nation indicates the year of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval. 1. Scope 1.1 This test method covers a perf
3、ormance testtests applicable for determining the soil-geotextile system permeability and cloggingbehaviorforcohesionlesscompatibilityofgeotextileswithvarioustypesofwater-saturatedsoilsunderunidirectionalow conditions. 1.2 Two evaluation methods may be used to investigate soil geotextile ltration beh
4、avior, depending on the soil type: 1.2.1 For soils with a plasticity index lower than 5, the systems compatibility shall be evaluated per this standard. 1.2.2 For soils with a plasticity index of 5 or more, it is recommended to use ASTM D5567 (HCR, Hydraulic Conductivity Ratio) instead of this test
5、method. 1.2.3 If the plasticity index of the soil is close to 5, the involved parties shall agree on the selection of the appropriate method prior to conducting the test. This task may require comparison of the permeability of the soil-geotextile system to the detection limits of the HCR and Gradien
6、t Ratio Test (GRT) test apparatus being used. 1.3 The values stated in SI units are to be regarded as standard. The values in parentheses are for information only. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of t
7、he user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 2. Referenced Documents 2.1 ASTM Standards: 2 D123Terminology Relating to Textiles D422Test Method for Particle-Size Analysis of Soils D653Terminology
8、 Relating to Soil, Rock, and Contained Fluids D698Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12 400 ft-lbf/ft 3 (600 kN-m/m 3 ) D737Test Method for Air Permeability of Textile Fabrics D854Test Methods for Specic Gravity of Soil Solids by Water Pycnometer D1
9、587Practice for Thin-Walled Tube Sampling of Soils for Geotechnical Purposes D2216Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass D2487Practice for Classication of Soils for Engineering Purposes (Unied Soil Classication System) D2488Practice for Descrip
10、tion and Identication of Soils (Visual-Manual Procedure) D4220Practices for Preserving and Transporting Soil Samples D4318Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils D4354Practice for Sampling of Geosynthetics and Rolled Erosion Control Products(RECPs) for Testing D44
11、39Terminology for Geosynthetics D4491Test Methods for Water Permeability of Geotextiles by Permittivity D4647Test Method for Identication and Classication of Dispersive Clay Soils by the Pinhole Test 1 This test method is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direc
12、t responsibility of Subcommittee D35.03 on Permeability and Filtration. Current edition approved June 1, 2006July 1, 2012. Published June 2006 August 2012. Originally approved in 1990. Last previous edition approved in 20012006 as D510101.D510101(2006). DOI: 10.1520/D5101-01R06.10.1520/D5101-12. 2 F
13、orreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatserviceastm.org.ForAnnualBookofASTMStandards volume information, refer to the standards Document Summary page on the ASTM website. This document is not anASTM standard and is intended only to provide the user of
14、 anASTM standard an indication of what changes have been made to the previous version. Because it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version of the standard as pu
15、blished by ASTM is to be considered the official document. Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States 1D4751Test Method for Determining Apparent Opening Size of a Geotextile D5084Test Methods for Measurement of Hydraulic Conducti
16、vity of Saturated Porous Materials Using a Flexible Wall Permeameter D5101Test Method for Measuring the Filtration Compatibility of Soil-Geotextile Systems D5567Test Method for Hydraulic Conductivity Ratio (HCR) Testing of Soil/Geotextile Systems 3. Terminology 3.1 Denitions: 3.1.1 clogging potentia
17、l, clogging, nin geotextiles, the tendency for a given fabricgeotextile to lose permeability due to soil particles that have either lodged become embedded in the fabric openings or have built up a restrictive layer on the surface of the fabric.geotextile surface to form a layer with lower permeabili
18、ty than that of the bulk soil specimen. 3.1.2 geotextile,piping, na permeable geosynthetic comprised solely of textiles.the tendency of the geotextile to let a quantity of soil pass through its plane that may potentially lead to stability concerns in the soil or internal clogging of the geotextile.
19、3.1.3 gradient ratio, nin geotextiles, the ratio of the hydraulic gradient throughacross a soil-geotextile systeminterface to the hydraulic gradient through the soil alone. 3.1.4 hydraulic gradient, i, s (D)the loss of hydraulic head per unit distance of ow, dH/dL. 3.1.5 Fordenitionsofothertextilete
20、rms,refertoTerminologyD123.Fordenitionsofothertermsrelatedtogeotextiles,refer to Terminology D4439 and Terminology D653. 3.2 Symbols and Acronyms: 3.2.1 CO 2 the chemical formula for carbon dioxide gas. 3.2.1 CHDthe acronym for constant head device. 3.2.2 GRTthe acronym for Gradient Ratio Test 3.2.3
21、 HCRthe acronym for Hydraulic Conductivity Ratio 4. Summary of Test Method 4.1 This test method requires setting up a cylindrical, clear plastic permeameter (seemethod is intended for use in the observationofchangeFig.1andintheFig.2)withageotextileandsoil,andpassingwaterthroughthissystembyapplyingva
22、rious differential heads. Measurements of differential heads and ow rates are taken at different time intervals to determine hydraulic gradients. The following test procedure describes equipment needed, the testing procedures, and calculations.permeability of a FIG. 1 Geotextile PermeameterGradient
23、Ratio Test Setup D510112 2soil-geotextile interface over time under a range of applied hydraulic gradients.At the end of the test, the weight of soil passing through the geotextile is measured. The distribution of hydraulic gradients in the vicinity of the soil-geotextile interface is also observed.
24、 5. Signicance and Use 5.1 This test method is recommended for evaluating the the evaluation of the performance of variouswater-saturated soil-geotextile systems under controlled test conditions. Gradient ratio values unidirectional ow conditions. The results obtained may be plotted and used as an i
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