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首页> 外文期刊>Rock Mechanics and Rock Engineering >Development of a New Experimental Apparatus for the Study of the Mechanical Behaviour of a Rock Discontinuity Under Monotonic and Cyclic Loads
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Development of a New Experimental Apparatus for the Study of the Mechanical Behaviour of a Rock Discontinuity Under Monotonic and Cyclic Loads

机译：研究单调和循环载荷作用下岩石不连续性力学行为的新型实验仪器的开发

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The shear behaviour of rock discontinuities in seismic condition is still not fully understood although earthquakes can be an important triggering cause of instability phenomena of rock blocks. For this purpose, a special apparatus was designed and developed at the University of Parma (Italy), which is to be placed inside the MTS press available in the Laboratory of Materials Testing. The press allows the application of monotonic and cyclic loads, in load or in deformation control. Quantitative evaluation of the rock-joint damage is realized by a photogrammetric survey of the discontinuity before and after the tests. The surface comparison enables the identification of the damaged areas. Finally, theoretical and experimental results are interpreted in the light of the damage model developed by Belem et al. (Rock Mech Rock Eng 33(4):217–242, 2001) for a quantitative evaluation of joint roughness and resistance.
机译：尽管地震可能是导致岩石块体失稳现象的重要触发原因，但地震条件下岩石间断面的剪切特性仍未得到充分理解。为此，在意大利帕尔马大学设计和开发了一种特殊的设备，该设备将放置在材料测试实验室的MTS压机内。压力机允许在载荷或变形控制中施加单调和循环载荷。岩石节损伤的定量评估是通过对试验前后的不连续性进行摄影测量来实现的。表面比较可以识别损坏的区域。最后，根据Belem等人开发的损伤模型来解释理论和实验结果。 （Rock Mech Rock Eng 33（4）：217–242，2001）用于定量评估接头的粗糙度和阻力。

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