黄土丘陵区房柱式开采地表塌陷特征及机理分析——以陕北府谷县新民镇小煤矿为例  

FEATURES AND MECHANISM ANALYSIS OF GROUND COLLAPSE CAUSED BY "PILLAR" METHOD MINING IN COAL MINES IN LOESS HILLY AREAS

作　　者：蔡怀恩[1] 侯恩科[2] 张强骅 贾睿涛[2] 门清波[1] 

机构地区：[1]机械工业勘察设计研究院,西安710043 [2]西安科技大学地质与环境学院,西安710054 [3]青海煤炭地质局,西宁810001

出　　处：《地质灾害与环境保护》2010年第2期101-104,共4页Journal of Geological Hazards and Environment Preservation

摘　　要：通过对陕北府谷县新民镇小煤矿采煤地表大面积塌陷的调查和分析,总结出黄土丘陵区房柱式开采地表的塌陷特征,并以西岔沟煤矿房柱式开采为例,对其两种参数顶板岩梁应力、煤柱载荷、煤柱强度进行分析及对比,结果表明合理设计煤柱和煤房尺寸可以防止采煤地表大面积塌陷。Based on investigation into and analysis of the large area ground collapse of small coal mines in Xinmin Town in Fugu County,north of Shanxi,and summarized the features of ground collapse caused by ＂Pillar＂ mining in loess hilly region,the paper took Xichagou coal mine as an example,by analyzing and contrasting the stress of roof rock beam,load and strength of pillar with its two parameters,and the results indicate a reasonable size of room and coal pillar can prevent a large-area ground collapse.

关 键 词：黄土丘陵 房柱式 塌陷 机理 

分 类 号：TD324[矿业工程—矿井建设] P642.26[天文地球—工程地质学]