测定岩体原地承载力的水力阶撑测试技术及其应用

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。

Determination of in-situ resistance capability by hydraulic jacking test and it''''s application

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.