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Standard Practice for Soil Exploration and Sampling by Auger Borings 用螺旋钻孔法进行土壤勘探和取样的标准实施规程
发布日期: 2024-06-01
1.1 本规程涵盖浅层岩土工程勘探中使用螺旋钻的设备和程序。此做法不适用于空心螺旋输送器。实践中介绍了空心杆螺旋钻孔法在岩土工程勘探中的应用 D6151/D6151M 。根据 D4220/D4220米 。样本受到干扰,通常可用于分类测试( D2487 , D2488 ),压实特性的测定( D698 , D1557 ),或任何其他需要批量样品的标准。为了获得完整的样品,使用薄壁样品管( D1587/D1587米 )结合流体旋转钻井( D5783 )或空心螺旋钻( D6151/D6151M )可以考虑。 1.2 本规程不包括指南中讨论的地质环境现场特征和监测井安装的考虑因素 D5783 和 D5784/D5784米 . 1.3 单位-- 括号中以英寸磅单位或国际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。将两个系统的值合并可能导致不符合标准。 1.4 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 除非被这种方法取代。 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。 1.6 此实践提供了一套用于执行一个或多个特定操作的说明。 这种做法不能取代教育或经验,应与专业判断结合使用。并非此做法的所有方面都适用于所有情况。这种做法并不代表或取代判断特定专业服务是否充分的护理标准,也不应在不考虑项目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共识程序批准。 1.7 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 螺旋钻孔通常提供最简单的土壤勘探和取样方法。它们可用于收集扰动土壤样本,是确定地下水位和指示地层变化的一种有价值的方法。螺旋钻孔也可用于推进孔,以进行分体筒穿透试验和取样(试验方法 D1586/D1586M )和薄壁管取样(实施规程 D1587/D1587米 ). 所需设备简单易用。然而,螺旋钻勘探的深度受到地下水条件、土壤特性和所用设备的限制。
1.1 This practice covers equipment and procedures for the use of earth augers in shallow depth geotechnical exploration. This practice does not apply to hollow-stem augers. Uses of hollow-stem auger drilling methods for geotechnical exploration are addressed in Practice D6151/D6151M . Samples recovered from this standard are considered as belonging to Group A or B in accordance with D4220/D4220M . The samples are disturbed and can generally be used for classification testing ( D2487 , D2488 ), determination of compaction characteristics ( D698 , D1557 ), or any other standard that requires bulk samples. For obtaining intact samples use of thin-walled sample tubes ( D1587/D1587M ) in conjunction with fluid rotary drilling ( D5783 ) or hollow-stem augers ( D6151/D6151M ) may be considered. 1.2 This practice does not include considerations for geoenvironmental site characteristics and installation of monitoring wells which are discussed in Guides D5783 and D5784/D5784M . 1.3 Units— The values stated in either inch-pound units or SI units presented in brackets 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 non-conformance with the standard. 1.4 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026 unless superseded by this method. 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 practice offers a set of instructions for performing one or more specific operations. This practice 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 practice 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. 1.7 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 Auger borings often provide the simplest method of soil exploration and sampling. They may be used for collecting disturbed soil samples and are a valuable method for determining groundwater levels and for indicating changes in strata. Auger borings may also be used to advance the hole for split-barrel penetration tests and sampling (Test Method D1586/D1586M ), and for thin-walled tube sampling (Practice D1587/D1587M ). Equipment required is simple and readily available. Depths of auger explorations are, however, limited by groundwater conditions, soil characteristics, and the equipment used.
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归口单位: D18.02
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