重大工程建设中的地应力测量及其在设计中的应用

In-situ Stress Measurement for the Vital Project Construction and Its Application in Designing

水压致裂技术现已发展成为确定地下洞室三维原地应力状态、高压洞室围岩的自身承载能力以及岩体高压透水性的可靠实用方法,并已经在核废料处置、长大深埋交通隧道以及水电站高压力洞室工程中得到广泛应用。实践表明,综合测定岩体的物理力学参数,充分利用围岩承载力优化工程设计,对确保工程安全和提高设计水平具有重要意义。

The hydraulic fracturing technology has been developed into a reliable and practical method to determine the in-situ stress state of underground caverns, self-bearing capability of wail rock of high-pressure cavern and the high-pressure hydraulic permeability of rock mass, which has been widely used in the disposal of nuclear waste, the long and deeply-buried communication tunnels and the high-pressure caverns of hydraulic power plant. The practices indicate that comprehensively determining physical and mechanical parameters of rock mass and fully utilizing the bearing capacity of wall rock to optimize the design are of great significance to assure the engineering safety and approve the design level.