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基于裂隙充填物膨胀压力与蚀变岩体力学参数测试分析成果,针对膨胀性充填物对裂隙岩体渗流影响极少开展的问题,探讨了充填物的力学响应对裂隙渗流的影响。研究表明,无论充填物产生的膨胀压力对裂隙来说是剪应力还是拉应力,都将导致其渗透性显著增加。并且,充填物的塑化、液化效应也对裂隙渗流产生重要影响。
Based on the test results of the expansive pressure of the crack filling material and the mechanical parameters of the altered rock mass, aiming at the problem that the infilling filling material has little effect on the seepage flow of the fractured rock mass, the effect of the mechanical response of the filling material on the fracture seepage is discussed. It has been shown that both the shear stress and the tensile stress on the fracture irrespective of the inflation pressure produced by the filling will result in a significant increase in permeability. In addition, the plasticization and liquefaction effects of filling material also have an important influence on the seepage of fractures.