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由于岩体具有随时间改变而变化,间断性和不均匀性的特征,目前合理的选取参数对于层状岩体边坡工程仍面临一些问题。岩体力学参数取值是边坡设计人员所关心的重点之一,而内摩擦角和粘聚力是设计的重点参数,但是对于顺层边坡完整岩石实验所得的参数不具代表性,所以合理折减其参数十分重要。采用ANSYS建模划分网格,将网格导入FLAC3D,利用强度折减技术和FLAC3D强大的数值计算能力相结合,对顺层岩质边坡进行强度参数折减。模拟在同岩层倾角下不同开挖坡度对岩石强度参数的折减情况。
Due to the characteristics of rock mass changing with time, discontinuity and inhomogeneity, the current reasonable selection parameters still face some problems for layered rock slope engineering. The mechanical parameters of rock mass are one of the focuses of slope designers, while the internal friction angle and cohesion are the key parameters of the design, but the parameters obtained from the complete rock experiment of bedding rock slope are not representative, so it is reasonable Reducing its parameters is very important. By using ANSYS to model the mesh, the mesh is imported into FLAC3D, and the intensity reduction technique is combined with FLAC3D’s powerful numerical calculation ability to reduce the strength parameters of the bedding rock. The reduction of rock strength parameters under different dip angles of rock strata is simulated.