本文介绍了基于不连续变形方法的块体理论.以某金矿运输巷道为工程背景,详细论述了围岩中关键块体的判别及块体最大可动区域的确定,并通过BST和UNWEDGE程序进行关键块体计算.通过块体理论方法在围岩稳定性分析中的应用,分析了围岩稳定性的影响因素和关键块体的安全系数,对围岩塌陷区的加固机理进行了研究,并对围岩稳定性进行了数值模拟研究(3DEC),验证围岩塌陷区进行加固支护方法具有一定效果.%The block theory of discount deformation method is introduced.Based on the project background that is the transport opening of gold mine, the key block and the maximum movable district of the rock surrounding are defined by the block theory, BST and UNWEDGE methods.By the application of block theory on the stability, the factors influencing the rock surrounding stability and the Fs of the key block are analyzed.For the rock surrounding is instability, so the grouting and bolting methods is used to supporting the collapsing.The 3DEC method is use to verify the effect of supporting method.
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