测定岩体原地承载力的水力阶撑测试技术及其应用
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摘要
在勘探钻孔中的各种裂隙层段上进行水力阶撑测试,能够确定岩体的原地承载力。笔者给出了某工程的应用实例,并对测试成果进行了分析。实践表明,在地质结构基本完整的情况下,岩体都具有较强的自承能力。充分利用岩体的承载能力对于科学的优化工程设计、减少投资、缩短工程建设周期,均具有重要的实际意义。
With the hydraulic jacking test carried out at the various fissure sections in exploring borehole, the rocks in-situ resistance capability can be determined. This paper gives an application example in an engneering site, and the measurement results are analysed . It shows that at general conditions of the basically integrated stratum construction, the surrounding rock usually has a good bearing ability. Therefore by using the rocks resistance capability adequately, the engneering design can be optimized resonablly, which can reduce the investment and shorten the engineering construction period.
引文
[1]谷兆祺,彭守拙,李仲奎.地下洞室工程[M].北京:清华大学出版社,1994,16-30.
    [2]SL25-92,水利水电工程钻孔压水试验规程[S].
    [3]郭启良,安其美,丁立丰.高水头电站钻孔高压压水的作用和意义[A].地壳构造与地壳应力文集(13)[C].北京:地震出版社,2000,148-154.
    [4]RutqvistJ,StephanssonO.A cyclic hydraulic jacking test to determine the in-site stress normal to a fracture[J].International journal of rock mechanics and mining sciences,1996,33(7):695-711.
    [5]刘世明,胡宝磊.天荒坪抽水蓄能电站岔管区域高压渗透试验[J].地下工程技术,1996,(1):1-8.

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