1.1 本试验方法的目的是提供在受控实验室条件下对全尺寸铰接混凝土砌块（ACB）护岸系统进行水压试验的规范，以确定陡坡、高速流中的稳定性性能。本测试方法描述了测试协议，包括系统安装、测试程序、测量技术、分析技术和报告要求。 1.2 以英寸-磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。报告或使用英寸磅以外的单位不应被视为不合格，只要该方法中使用的英寸磅系统所描述的水槽施工的选定参数至少符合要求。 1.2.1 处理英寸时使用英寸磅单位的重力系统- 磅单位。在这个系统中，磅（lbf）表示力（重量）的单位，而质量的单位是蛞蝓。除非涉及动态（F=ma）计算，否则未给出合理的段塞单元。 1.3 所有观测值和计算值应符合实践中制定的有效数字和四舍五入指南 D6026 。 1.3.1 本指南中用于规定如何收集、记录和计算数据的程序被视为行业标准。此外，它们代表了通常保留的有效数字。所使用的程序不考虑材料变化、获取数据的目的、特殊目的研究或用户目标的任何考虑因素；并且通常的做法是增加或减少报告数据的有效数字以与这些考虑相称。考虑工程设计分析方法中使用的有效数字超出了本标准的范围。 1.4 本标准并非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。 注1: 本标准产生的结果的质量取决于执行该标准的人员的能力以及所用设备和设施的适用性。符合实践标准的机构 D3740 通常被认为能够胜任和客观的测试。本标准的使用者应注意遵守实践 D3740 其本身不能保证可靠的结果。可靠的结果取决于许多因素和实践 D3740 提供了评估其中一些因素的方法。 1.5 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====== 5.1 铰接式混凝土块护岸系统由单个混凝土块的矩阵组成，这些混凝土块放置在一起，形成具有特定水力性能特征的抗侵蚀护岸。该系统包括与底土兼容的过滤层，该过滤层允许在提供颗粒截留的同时进行渗透和渗出。过滤层可以由土工布、适当级配的颗粒介质或两者组成。基质内的混凝土块应密实耐用，基质应灵活多孔。 5.2 ACB护岸系统用于保护下层土壤材料免受流动水流的侵蚀。本标准中使用的术语“铰接”意味着系统的单个混凝土块在通过几何联锁、电缆、绳索、土工织物、土工格栅或其组合保持互连的同时，能够适应路基的变化。 5.3 ACB护岸系统的定义没有区分联锁和非联锁块的几何形状、电缆连接和非电缆连接系统、植被系统和非植被系统或制造或放置方法。此外，该定义不限制或限制块的大小、形状、强度或寿命；然而，有关这些因素的指导方针和建议已纳入本标准。块有开放单元或封闭单元配置。

1.1 The purpose of this test method is to provide specifications for the hydraulic testing of full-scale articulating concrete block (ACB) revetment systems under controlled laboratory conditions for purposes of identifying stability performance in steep slope, high-velocity flows. The testing protocols, including system installation, test procedures, measurement techniques, analysis techniques, and reporting requirements are described in this test method. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Reporting or use of units other than inch-pound shall not be considered non-conformance as long as the selected parameters described regarding flume construction by the inch-pound system used in this method are met as a minimum. 1.2.1 The gravitational system of inch-pound units is used when dealing with inch-pound units. In this system, the pound (lbf) represents a unit of force (weight), while the unit for mass is slugs. The rationalized slug unit is not given, unless dynamic (F = ma) calculations are involved. 1.3 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026 . 1.3.1 The procedures used to specify how data are collected, recorded and calculated in this Guide are regarded as the industry standard. In addition they are representative of the significant digits that generally be retained. The procedures used do not consider material variation, purpose of obtaining the data, special purpose studies or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of this standard to consider significant digits used in analysis methods for engineering design. 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 the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it and the suitability of the equipment and facilities used. Agencies that meet criteria of Practice D3740 are generally considered capable of competent and objective testing. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors and Practice D3740 provides a means of evaluating some of these factors. 1.5 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 An articulating concrete block revetment system is comprised of a matrix of individual concrete blocks placed together to form an erosion-resistant revetment with specific hydraulic performance characteristics. The system includes a filter layer compatible with the subsoil which allows infiltration and exfiltration to occur while providing particle retention. The filter layer may be comprised of a geotextile, properly graded granular media, or both. The concrete blocks within the matrix shall be dense and durable, and the matrix shall be flexible and porous. 5.2 ACB revetment system are used to provide erosion protection to underlying soil materials from the forces of flowing water. The term “articulating,” as used in this standard, implies the ability of individual concrete blocks of the system to conform to changes in subgrade while remaining interconnected by virtue of geometric interlock, cables, ropes, geotextiles, geogrids, or combination thereof. 5.3 The definition of ACB revetment system does not distinguish between interlocking and non-interlocking block geometries, between cable-tied and non-cable-tied systems, between vegetated and non-vegetated systems or between methods of manufacturing or placement. Furthermore, the definition does not restrict or limit the block size, shape, strength, or longevity; however, guidelines and recommendations regarding these factors are incorporated into this standard. Blocks are available in either open-cell or closed-cell configurations.