侧向压力对岩块极限承载能力的影响研究

Effect of the Lateral Pressure on Maximum Load-bearing Capacity of Rock Block

工程岩体宏观力学参数特别是极限承载能力的研究是岩石力学最基本、也是最困难的研究课题之一。本文采用数值模拟方法研究了侧向压力对岩块极限承载能力的影响,得到了侧向压力与极限承载能力之间的函数关系,同时还找出了岩块声发射随着侧向压力的变化规律,这些问题的解决对于用数值模拟方法研究岩体工程的宏观力学性能无疑是很有意义的。

Macroscopic mechanical properties of engineering rock mass, especially the maximum load-bearing capacity is one of the most basic and difficult task of rock mechanics. The effect of the lateral pressure on maximum load-bearing capacity of rock block investigated numerically, the relations between lateral pressure and the maximum load-bearing capacity are acquired, the acoustic emission rules of rock block with the change of lateral pressure are found out, which is beneficial for the research on the macroscopic mechanical properties of rock mass.