【摘要】 通过马山抽水蓄能电站坝体堆石料平行试验研究,认为三种堆石料两次大型三轴剪切试验、侧限单向压缩试验和渗透试验的结果都很接近;堆石料的应力应变关系符合邓肯-张双曲线模型,低围压下会发生剪胀;其压缩性比较低,卸荷回弹量很小,基本都是塑性变形;堆石料的渗透规律基本满足达西定律。堆石料平行试验结果验证了材料的性质能满足工程设计的要求,也说明材料性质的稳定性、试验方法的可行性和试验仪器的准确性均比较令人满意。更多还原

【Abstract】 A series of parallel tests are carried out on the rockfills of Mashan pumped storage power station in the city of Wuxi. It is found that the results of large scale triaxial compression tests,confined-uniaxial compression tests and seepage tests for twice on three kinds of rockfills are very closer. The stress-strain relationships of three rockfills are consistent with the Duncan-Chang hyperbolic model,and the volume dilates under lower confined pressures. The low compressibility of rockfills is due to their stiffness. The bounce is very little when unloading,so it is thought that the compression deformation is basically plastic. Additionally,the permeabilities for three rockfills accord with Darcy Law. Therefore,the test results show that the rockfill materials satisfy the design requests of engineering,and also validate that the stable properties of rockfills,the feasibility of experiment methods and the accuracy of apparatuses are all accepted.更多还原