摘要
围岩的地质、工程地质特性是影响软岩巷道稳定性的主要因素,也是巷道支护设计的依据。从沉积岩石学和工程地质的观点出发,以邢台矿业集团显德汪矿的“三软”煤层巷道为研究对象,深入分析了巷道围岩的沉积岩石学特征,对主采煤层顶板的工程地质性质作了进一步评价。以工程类比法探讨了高地应力对软岩巷道的控制作用,得出了软岩巷道变形破坏力学机制的新认识,为支护设计提供依据。
The geological engineering geological characteristics of the surrounding rock are the main factors affected the stability of weak tunnel, and are the basis for tunnel support. The sedimentary characteristics of coal-bearing strata were analyzed, and the geological properties roof of coal seam were studied, with the main tunnel of Xiandewang coal mine as an example, from the point view of sedimentary petrology. The function of crustal stress on the stability of tunnel with the engineering geological analogy method were analyzed. The new mechanism of deformation failure of weak tunnel are gained, and the basis for tunnel support are provided.
出处
《矿山压力与顶板管理》
北大核心
2005年第2期49-51,共3页
Ground Pressure and Strata Control
基金
河北省教育厅博士基金资助项目(B2002115)
