摘要
拱形结构注浆是一种新型的煤矿采空区注浆施工方法,该方法与采空区充填注浆的不同之处在于:它不仅从材料学角度加固地层,更重要的是结合结构力学原理,用拱形结构来承载上覆土压力和阻隔采空区上覆岩层变形向地表扩展。利用数学力学分析法和数值模拟法初步探讨了拱形结构注浆控制煤矿采空区地表沉陷的力学机理,得出了拱形结构注浆的相关注浆参数及其之间的数学关系,以及理想状况下的注浆效果,为进一步研究该注浆方法的关键技术奠定了基础。
The arch structure grouting is a new-type grouting method in mine gob which is different from the filling grouting in gob area in that it not only reinforces stratum from view of materials science, but more importantly, it combines structure mechanics principle and uses the arch structure to carry the top soil pressure and to obstruct extension of overlying rock transformation towards surface. This article explores the mechanical mechanism and obtains correlation parameters of the arch structure grouting and mathemat- ic relation between each other, and the grouting effect under ideal conditions. The study establishes the basis for the further study of the key technology of the arch structure grouting method.
出处
《安全与环境工程》
CAS
2015年第4期22-27,共6页
Safety and Environmental Engineering
关键词
煤矿采空区
地表沉陷
注浆
拱形结构
数值模拟
coal mine gob area
subsidence
grouting
arch structure
numerical simulation
