1.1 本规程涵盖了用于大坝路堤护坡、河岸侵蚀控制、桥墩和桥台的抛石、碎石或垫层或两者的标准尺寸的尺寸名称和最大质量或级配范围。用于外部港口结构的尺寸，如防波堤、护岸、封闭堤防处理结构（迄今为止称为护面石、盖石或尺寸石），其石头尺寸在5吨至25吨之间，或需要分层结构的切割尺寸，不在本规范的范围内。 1.2 以英寸-磅为单位的数值应视为标准值。括号中给出的值是国际单位制的合理转换，仅供参考，不被视为标准。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。 1.4 这种做法提供了有组织的信息收集或一系列选择，并不建议采取具体行动。本文件不能取代教育或经验，应与专业判断一起使用。并非本惯例的所有方面都适用于所有情况。本ASTM标准不代表或取代必须根据其判断给定专业服务的充分性的谨慎标准，也不应在不考虑项目的许多独特方面的情况下应用本文件。 本文件标题中的“标准”一词仅表示该文件已通过ASTM共识程序获得批准。 1.5 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《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 提供本规程中列出的标准尺寸名称，以便设计团队、消费者和生产商在确定侵蚀控制所用石材的尺寸时有一个共同的参考。设计团队应指定材料调查和岩石质量测试系列，以确定哪些采石场可能具有合适的爆破和处理程序，以产生所需的级配。 设计团队应该认识到，并非所有来源都能够或愿意产生所需的等级。只有设计团队列出的资源才应考虑用于项目施工。 5.2 本指南中提供的标准尺寸名称适用于设计用于侵蚀控制的保护性表面和结构。这些尺寸适用于典型结构，如码头、护岸、丁坝挡板、舱壁、排水/灌溉沟衬砌、进出口设施、桥梁和河道堤岸、石笼以及土堤和堆石坝的护坡。 5.3 石材尺寸、耐久性、铺设、过滤/垫层材料或土工布的设计选择、铺设坡度和层厚超出本指南的范围。

1.1 This practice covers size designations and maximum ranges in mass or gradation for standard sizes for riprap, spalls, or bedding, or both, used for slope protection of dam embankments, streambank erosion control, bridge piers and abutments. Sizes used for outer harbor structures such as breakwalls, revetments, confined diked disposal structures (heretofore described as armor stone, cover stone, or dimension stone) for which stone sizes range between 5 and 25 tons, or that require cut dimensions for layed-up structures are beyond the scope of this practice. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are rationalized conversions to SI units that are provided for information only and are not considered standard. 1.3 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. 1.4 This practice offers an organized collection of information or a series of options and does not recommend a specific course of action. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project's many unique aspects. The word “Standard” in the title of this document means only that the document has been approved through the ASTM consensus process. 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 The standard size designations listed in this practice are provided so that the design team, consumer, and the producer have a common reference in sizing stone materials used in erosion control. The design team should assign a materials survey, and rock quality testing series to determine which quarry sources may have suitable blasting and processing procedures to produce the required gradations. The design team should recognize the fact that not all sources are capable of or willing to produce the required gradations. Only those sources listed by the design team should be considered for construction of the project. 5.2 The standard size designations provided in this guide are suitable for protective surfacing and structures designed for erosion control. These sizes are for typical structures such as jetties, revetments, groin baffles, bulkheads, lining for drainage/irrigation ditches and for intake or outlet facilities, bridges and stream channel banks, gabions, and slope protection for earth embankment and rock-fill dams. 5.3 The design selection of stone sizes, durability, placement, filter/bedding materials, or geotextiles, steepness of slopes for placement, and layer thickness are beyond the scope of this guide.