1.1 该试验方法详细说明了如何对嵌入土壤中的土工合成材料施加循环荷载，以确定土壤-土工合成界面的表观刚度。 1.2 弹性界面剪切刚度描述了在小循环荷载条件下，土工合成材料与其周围土壤之间的剪切刚度。 1.3 本试验方法旨在为设计提供财产。该试验方法是为需要输入弹性界面剪切刚度的机械经验路面设计方法而开发的。本试验方法中的该参数在涉及循环荷载的其他应用中的使用应根据案例进行评估- 根据具体情况。它还可用于比较不同的土工合成材料、土壤类型等，从而用作研究和开发试验程序。 1.4 以国际单位制或英寸磅单位表示的数值应单独视为标准值。每个系统中规定的值可能不完全相等；因此，每个系统应独立使用。将两个系统的值合并可能导致不符合标准。 1.5 本标准并不旨在解决与其使用相关的所有安全问题（如有）。 本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 该测试方法旨在作为性能测试，为用户提供一组测试条件的设计值。 5.1.1 当以循环方式加载时，该试验方法适用于所有土工合成材料和所有土壤。 5.1.2 该测试方法产生测试数据，可用于土工合成材料加固路面结构的设计或土工合成物承受循环荷载的应用。 5.1.3 试验结果还可提供与土工合成材料在受限荷载条件下的土内应力应变响应相关的信息。 5.2 本试验得出的信息可能是土壤级配、塑性、干容重、含水量、土工合成材料的长度和表面特性以及其他试验参数的函数。因此，结果以实际测试条件表示。试验测量了界面剪切机制组合的净效应，其可能因土工合成材料试样类型、埋置长度、相对开口尺寸、土壤类型、位移率、法向应力和其他因素而异。 5.3 实验室之间关于精度的信息不完整。 在有争议的情况下，可以进行比较测试，以确定实验室之间是否存在统计偏差。

1.1 This test method details how cyclic loading is applied to geosynthetics embedded in soil to determine the apparent stiffness of the soil–geosynthetic interface. 1.2 Resilient interface shear stiffness describes the shear stiffness between a geosynthetic and its surrounding soil under conditions of small cyclic loads. 1.3 This test method is intended to provide properties for design. The test method was developed for mechanistic empirical pavement design methods requiring input of the resilient interface shear stiffness. The use of this parameter from this test method for other applications involving cyclic loading should be evaluated on a case-by-case basis. It can also be used to compare different geosynthetics, soil types, etc., and thereby be used as a research and development test procedure. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method is intended as a performance test to provide the user with a set of design values for the test conditions examined. 5.1.1 The test method is applicable to all geosynthetics and all soils when loaded in a cyclic manner. 5.1.2 This test method produces test data, which can be used in the design of geosynthetic-reinforced pavement structures or in applications where geosynthetics are subjected to cyclic loads. 5.1.3 The test results may also provide information related to the in-soil stress-strain response of a geosynthetic under confined loading conditions. 5.2 Information derived from this test may be a function of soil gradation, plasticity, as-placed dry unit weight, moisture content, length and surface characteristics of the geosynthetic, and other test parameters. Therefore, results are expressed in terms of the actual test conditions. The test measures the net effect of a combination of interface shear mechanisms, which may vary depending on type of geosynthetic specimen, embedment length, relative opening size, soil type, displacement rate, normal stress, and other factors. 5.3 Information between laboratories on precision is incomplete. In cases of dispute, comparative tests to determine if there is a statistical bias between laboratories may be advisable.