1.1 本规程涵盖了用于侵蚀控制的岩石评估。该评估的复杂性和程度将取决于单个项目的规模和设计要求、所需岩石的数量和质量以及财产损失或人员伤亡的潜在风险。 1.2 并非本实践中列出的所有评估都适用于每个项目。对于一些不太重要的小型工作，可能只需要对岩石进行目视检查。对于大型、复杂、高风险项目，可能需要进行以下几项评估。设计师有责任确定对任何一个项目进行评估的强度和数量。 1.3 可能需要在源头对岩石进行检查，评估在任何现场装置中暴露于环境中的类似岩石，以及进行实验室测试，以确定岩石的性质，以及其在预期使用现场的预期性能 ( 1. , 2. , 3. , 4. , 5. , 6. ) . 2. 1.4 岩石源头的检查对于评估侵蚀控制至关重要，并有助于规划后续实验室检查。重量达几吨的超大岩石块用于控制侵蚀；在现场描述和取样程序中要格外小心，以确保记录并评估普通尺寸样品中可能不会出现的杂质或缺陷区域在预期使用条件下的潜在危害。有必要研究预期的岩石移除方法，以确定所取样本是否与最终使用的岩石的爆破、搬运和风化历史相符 ( 3. ) . 1.5 实验室检查中使用的具体程序取决于岩石的种类、特征、矿物成分、宏观和微观结构，可能最重要的是，预期用途、碎片的尺寸和使用现场的暴露条件 ( 1. , 2. , 3. , 4. ) . 1.6 假设这种做法将由具有教育和经验的人员使用，以规划必要的评估并进行评估，从而确定主题岩石的必要参数。因此，本规程并不试图详细说明所需的实验室技术，而是提及这些技术，并仅详细说明在检查用于侵蚀控制的岩石过程中特别关注的特性。 1.7 单位- 以国际单位制表示的数值应视为标准值。括号中给出的英寸-磅单位仅供参考。 1.8 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。 注1: 侵蚀的石块重达几百磅到几吨。在任何时候都要小心，因为每件物品的质量都代表着潜在的夹点以及起吊、搬运和搬运危险。 1.9 本实践提供了一组用于执行一个或多个特定操作的说明。 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。 1.10 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====== 4.1 本规程中的现场检查、取样和岩相检查以及适当的实验室测试可用于确定岩石是否适合进行侵蚀控制。考虑的因素包括识别和划定由于风化、蚀变、结构缺陷、孔隙度和其他潜在有害特征而导致的不合适或边缘成分和性质的岩石、地层和岩相的区域或地带。 4.2 评估岩体特性和岩石材料特性。 4.2.1 岩体性质是现场宏观评估的原位岩石的岩性性质。这些特性包括裂缝、节理、断层、层理、片理和线理等特征，以及岩石单元的横向和纵向范围。 4.2.2 岩石材料特性是可以使用小样本评估的岩性特性，因此可以进行有意义的实验室测试。这些特性包括矿物成分、粒度、岩石硬度、风化程度、孔隙度、容重等。 4.3 拟用于侵蚀控制应用的岩石通常分为过滤垫层石、抛石、护面石或防波堤石。然而，这些程序也可以扩展到丁坝和石笼结构中使用的岩石。 4.4 如果仅获取库存样品进行实验室测试，则可能不需要对采石场进行全面地质检查。本标准的规定者有责任指出本规范的哪些章节适用于特定项目。 注2: 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 通常认为能够胜任和客观的测试/采样/检查等。本标准的用户应注意遵守惯例 D3740 本身并不能保证可靠的结果。可靠的结果取决于许多因素；实践 D3740 提供了一种评估其中一些因素的方法。

1.1 This practice covers the evaluation of rock to be used for erosion control. The complexity and extent of this evaluation will be governed by the size and design requirements of the individual project, the quantity and quality of rock required, and the potential risk for property damage or loss of human life. 1.2 It is not intended that all of the evaluations listed in this practice be addressed for every project. For some small, less critical jobs, a visual inspection of the rock may be all that is necessary. Several of the evaluations listed may be necessary on large, complex, high-hazard projects. It is the responsibility of the designer to determine the intensity and number of evaluations made on any one project. 1.3 Examination of the rock at the source, evaluation of similar rock exposed to the environment at any field installations, as well as laboratory tests may be necessary to determine the properties of the rock as related to its predicted performance at the site of intended use ( 1 , 2 , 3 , 4 , 5 , 6 ) . 2 1.4 The examination of the rock at its source is essential to its evaluation for erosion control and aids in the planning of the subsequent laboratory examinations. Very large pieces of rock up to several tons weight are used in the control of erosion; take great care with the field descriptions and in the sampling program to assure that zones of impurities or weaknesses that might not occur in ordinary size specimens are recorded and evaluated for their deleterious potential under the conditions of intended use. It is necessary that the intended method of rock removal be studied to ascertain whether the samples taken will correspond to the blasting, handling, and weathering history of the rock that will finally be used ( 3 ) . 1.5 The specific procedures employed in the laboratory examinations depend on the kind of rock, its characteristics, mineral components, macro and micro structure, and perhaps most importantly, the intended use, size of the pieces, and the exposure conditions at the site of use ( 1 , 2 , 3 , 4 ) . 1.6 It is assumed that this practice will be used by personnel who are qualified by education and experience to plan the necessary evaluations and to conduct them so that the necessary parameters of the subject rock will be defined. Therefore, this practice does not attempt to detail the laboratory techniques required, but rather to mention them and only detail those properties that are of special concern in the course of the examination for rock to be used for erosion control. 1.7 Units— The values stated in SI units are to be regarded as standard. The inch-pound units given in parentheses are provided for information only. 1.8 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: Erosion stone pieces can weigh from several hundred pounds to several tons. Exercise caution at all times as the mass of each piece represents a potential pinch point and a lifting, handling, and carrying hazard. 1.9 This practice offers a set of instructions for performing one or more specific operations. 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. 1.10 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 The field examination, sampling, and petrographic examination in this practice along with appropriate laboratory testing may be used to determine the suitability of rock for erosion control. Factors to consider include identification and delineation of areas or zones of the rock, beds, and facies of unsuitable or marginal composition and properties due to weathering, alteration, structural weaknesses, porosity, and other potentially deleterious characteristics. 4.2 Evaluate both the rock mass properties and the rock material properties. 4.2.1 The rock mass properties are the lithologic properties of the in situ rock that are evaluated on a macroscopic scale in the field. These properties include features such as fractures, joints, faults, bedding, schistosity, and lineations, as well as the lateral and vertical extent of the rock unit. 4.2.2 The rock material properties are those lithologic properties that may be evaluated using small specimens and thus can be subject to meaningful laboratory testing. These properties would include mineral composition, grain size, rock hardness, degree of weathering, porosity, unit weight, and many others. 4.3 Rock proposed for use in erosion control applications are normally classified as either filter bedding stone, riprap stone, armor stone, or breakwater stone. However, these procedures may be also extended to rocks used in groin and gabion structures. 4.4 In cases in which only stockpile samples are to be obtained for laboratory testing, a full quarry geological examination may not be required. It is the responsibility of the specifier of this standard to indicate which sections of this Practice apply to the specific project. Note 2: The quality of the result produced by this standard is dependent upon the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluation some of those factors.