1.1 这些试验方法通过使用静水压力在路基上压缩土工合成材料来评估土工合成物的应力/时间特性。 1.2 这些测试方法允许用户确定土工合成材料的相对失效模式或失效点，或两者兼有。 1.3 程序B和C包括用户选择的特定场地土壤或其他材料作为测试设备的测试基础。程序B和C是特定场地的土工合成材料设计方法。 注1: 该试验方法的早期版本包含“程序a”，其中包括制造的试验金字塔或圆锥体作为试验装置的底座。 该程序被撤销，但保留了名称B和C，以避免混淆历史规范和技术数据表。 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。每个系统中规定的值可能不是完全相等的；因此，每个系统应独立使用。将两个系统的值结合起来可能会导致不符合标准。 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制定适当的安全、健康和环境实践，并确定监管限制的适用性。 有关具体的警告声明，请参阅第节 6. . 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 程序B和C 性能测试是否旨在作为设计辅助，用于模拟 原位 土工合成材料在静水压力下的行为。这些测试方法可以帮助设计工程师比较几种候选土工合成材料符合现场要求的能力- 特定用途和条件下的特定路基。在步骤B中，增加压力，直到观察到故障为止。在程序C中，给定的一组条件（压力、温度和测试持续时间）保持不变，并在测试结束时观察系统的性能。

1.1 These test methods evaluate the stress/time properties of geosynthetics by using hydrostatic pressure to compress the geosynthetic over a subgrade. 1.2 These test methods allow the user to determine the relative failure mode or points of failure for geosynthetics, or both. 1.3 Procedures B and C incorporate site-specific soil or other material selected by the user as the test base of the testing apparatus. Procedures B and C are methods for geosynthetic design for a specific site. Note 1: Earlier versions of this test method incorporated a ‘Procedure A’ involving manufactured test pyramids or cones as the base of the testing apparatus. This procedure was withdrawn, but the designations B and C were retained to avoid confusion on historical specifications and technical data sheets. 1.4 The values stated in either SI units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. For a specific warning statement, see Section 6 . 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 ====== 4.1 Procedures B and C are performance tests intended as a design aid used to simulate the in situ behavior of geosynthetics under hydrostatic compression. These test methods may assist a design engineer in comparing the ability of several candidate geosynthetic materials to conform to a site-specific subgrade under specified use and conditions. In Procedure B, the pressure is increased until a failure is observed. In Procedure C, a given set of conditions (pressure, temperature, and test duration) are maintained constant and the performance of the system is observed at the end of the test.