| 裂隙岩体透水率与其完整性指数及BQ值的关系初探 |
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| 引用本文： | 杨勇,姜桂春,孙伟.裂隙岩体透水率与其完整性指数及BQ值的关系初探[J].工程勘察,2012(1):35-38. |
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| 作者姓名： | 杨勇 姜桂春 孙伟 |
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| 作者单位： | [1]西北综合勘察设计研究院,西安710003 [2]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都610059 [3]长安大学地质工程与测绘学院,西安710054 |
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| 摘 要： | 岩体的渗透系数是评价岩体渗透性,进行裂隙岩体渗流模拟的必备参数,在工程实际应用中亦具有重大意义。研究发现:岩体的完整性系数和基本质量指标(BQ值)的算术平均值与裂隙岩体透水率的几何平均值相关性较好,故利用岩体的完整性系数和基本质量指标(BQ值)的算术平均值估算裂隙岩体的渗透系数是可行的。根据金堆城杨家湾尾矿库初期坝的岩体压水试验结果,初步探索了岩体的基本质量指标及岩体完整性指数与其透水率的关系。
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| 关 键 词： | 岩体基本质量指标(BQ值) 完整性系数 压水试验 透水率 |
Preliminary discussion on the relationship of permeability rate of fractured rock and its intactness index and BQ value |
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| Yang Yong,Jiang Guichun,Sun Wei.Preliminary discussion on the relationship of permeability rate of fractured rock and its intactness index and BQ value[J].Geotechnical Investigation & Surveying,2012(1):35-38. |
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| Authors: | Yang Yong Jiang Guichun Sun Wei |
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| Affiliation: | 1. Northwest Reseach Institute of Engineering Invstigation and Design, Xi＇ an 710003, China; 2. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China; 3. College of Geology Engineering and Geomatics, Chang＇ an University, Xi＇ an 710054, China) |
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| Abstract: | The seepage coefficient of rock mass is a essential parameter to evaluate the permeability of rock mass and to simulate the seepage of fracture rock, which are also of great significance in engineering practice. The study finds that the arithmetic means of the intactness index and the basic quality index （BQ value） have the good correlation with the geometric mean of the permeability rate of fractured rock. So the rock intactness index and basic quality index （BQ value） could be used to estimate the seepage coefficient of fractured rock. Based on the pump-in testing results from the early-stage Yangjiawan tailings dam in Jinduicheng, the relationship of the permeability rate of the rock mass with its basic quality index and permeability rate is discussed. |
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| Keywords: | rock basic quality index （BQ value） intactness index pump-in test permeability rate |
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