薄冲积层拟建城区下采煤地表沉陷试验研究  

Experimental Study on Thin Topsoil Surface Subsidence Mining under Planned Urban Area

作　　者：李平[1] 杨双锁[1] 赵飞[1] 李树峰[1] 崔健[1] 

机构地区：[1]太原理工大学矿业工程学院,太原030024

出　　处：《煤炭技术》2015年第6期45-47,共3页Coal Technology

摘　　要：针对萍乡城区白源煤矿的开采,结合关键层理论,采用理论计算、数值模拟的方法,确定了工作面长度在96 m以内、保护煤柱宽度在124 m以上时,开采对地表造成的不均匀沉降参数都在建筑物I级保护时所允许的地表变形值之内,即倾斜3 mm/m,曲率0.2 mm-1,水平变形2 mm/m,以及沉降量<100 m以内高耸结构基础的允许400 mm沉降。In view of Pingxiang city Baiyuan coal mining, in combination with the key strata theory,Using the theoretical calculation, numerical simulation method, determines the coalface length within the 96 m, protection coal pillar width more than 124 m, coal mining on the surface caused by the uneven settlement parameter in the permitted range, the tilt 3 mm/m, curvature, 0.2 mm-1horizontal deformation of 2 mm/m, and foundation settlement is less than 100 m tall structures allow settlement of400 mm.

关 键 词：理论计算 数值模拟 地表沉陷 

分 类 号：TD327[矿业工程—矿井建设]