深部软岩巷道冲击地压变形破坏机理分析

Mechanism Analysis on The Deformation and Destruction of Rock Burst in Deep Soft Rock Roadway

分析了软岩的基本特征及力学特性,对深部软岩巷道的冲击地压变形破坏机理进行了分析研究。利用RFPA数值模拟软件对深部具有冲击地压危险的软岩巷道的变形、破坏发展规律和运动机理进行了模拟。分析结果表明:软岩巷道周围裂隙的变形、扩展、破坏及其次生裂隙的产生、扩展和发育情况同数值模拟基本相吻合。

Analyzed the basic characteristics of the soft rock and mechanical properties of the impact of the deep soft rock tunnel de- formation and failure mechanism of ground pressure were analyzed, and soft rock tunnel from coal and rock mass two Angle for the fail- ure process and mechanism of theoretical research. Using numerical simulation software to RFPA deep impact heavily dangerous with the soft rock tunnel deformation, destruction, law of development and the movement mechanism. The analysis results of soft rock tunnel deformation, expansion crack around, and the generation of crack damage in the secondary development situation, the expansion and the numerical simulation with the basic practice.