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本文介绍了利用一米直径大岩芯进行现场剪切试验的方法。在缺乏大出力加压设备的条件下,提供了满足试验要求的解决办法。通过试验,得到砂、页岩互层中薄层页岩夹层的抗剪断及抗剪试验成果,分别为。对剪切过程中各种变形特性及循环剪切的变形特性进行了分析。为利用夹层页岩提供了天然含水状态下、不扰动原状岩体大型现场试验的资料,同时也为开展现场大型试验提供了一个新的途径。并对今后进行这种试验,提出了一些看法。
This article describes the method of using a one meter diameter large core shear test site. In the absence of large pressure equipment under conditions, to provide the test solution to meet the requirements. Through the test, the shear resistance and shear test results of thin-layer shale interlayer in sand and shale interbed are obtained respectively. Various deformation characteristics and the deformation characteristics of cyclic shear during the shear process are analyzed. In order to make use of intercalated shales, the data of large-scale field experiments of undisturbed intact rock mass in natural water-bearing state are provided, which also provides a new way for large-scale on-site experiments. And for the future of such experiments, put forward some views.