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ASTM D6032/D6032M-2017 岩芯的岩石质量指标测定方法 Standard Test Method for Determining Rock Quality Designation (RQD) of Rock Core
1.1 This test method covers the determination of the rock quality designation (RQD) as a standard parameter in drill core logging of a core sample in addition to the commonly obtained core recovery value (Practice D2113); however there may be some variations between different disciplines, such as mining and civil projects. 1.2 This standard does not cover any RQD determinations made by other borehole methods (such as acoustic or optical televiewer) and which may not give the same data or results as on the actual core sample(s). 1.3 There are many drilling and lithologic variations that could affect the RQD results. This standard provides examples of many common and some unusual situations that the user of this standard needs to understand to use this standard and cannot expect it to be all inclusive for all drilling and logging scenarios. The intent is to provide a baseline of examples for the user to take ownership and watch for similar, additional or unique geological and procedural issues in their specific drilling programs. 1.4 This standard uses the original calculation methods by D.U. Deere to determine an RQD value and does not cover other calculation or analysis methods; such as Monte Carlo. 1.5 The RQD in this test method only denotes the percentage of intact and sound rock in a core interval, defined by the test program, and only of the rock mass in the direction of the drill hole axis, at a specific location. A core interval is typically a core run but can be a lithological unit or any other interval of core sample relevant to the project. 1.6 RQD was originally introduced for use with conventional drilling of N-size core with diameter of 54.7 mm (2.155 in.). However, this test method covers all types of core barrels and core sizes from BQ to PQ, which are normally acceptable for measuring determining RQD as long as proper drilling techniques are used that do not cause excess core breakage or poor recovery, o...
2023-07-23 03:24:02浏览：11
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ASTM E2522-2007(2013)健康分类用质量指标指南Standard Guide for Quality Indicators for Health Classifications
ASTM E2522-2007(2013)健康分类用质量指标指南Standard Guide for Quality Indicators for Health Classifications...
2022-03-14 21:36:35浏览：44
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合成气法乙二醇质量指标波动原因及对聚酯生产的影响
简述了不同指标对聚酯产品质量的影响，分析了合成气经草酸酯加氢法乙二醇各项质量指标波动的原因，提出了控制合成气法乙二醇质量的关键点。...
2020-10-02 20:35:09浏览：53
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质量可靠性在聚烯烃装置中的应用
根据不同聚乙烯产品的密度采样分析,从添加剂、分析标准和产品物理力学性能的变化,对装置运行中的设备、电气仪表和工艺等影响因素对产品质量控制进行分析,进而分析对产品质量控制可靠性的影响因素,作为装置生产产品质量控制中的重点,提高质量控制的可靠性....
2020-03-23 17:43:05浏览：1399
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