综放锚网支护沿空顺槽合理小煤柱尺寸确定方法  

Method of determining rational width of small coal pillar protecting roadways driving along next goaf supported by bolting and meshing of fully mechanized sub-level face

作　　者：杨永杰[1] 姜福兴[1] 宁建国[1] 张东俭[2] 邵景柱[2] 牛军[2] 

机构地区：[1]山东科技大学,山东泰安271019 [2]兖矿集团有限公司济宁二号煤矿,山东济宁272171

出　　处：《中国地质灾害与防治学报》2001年第4期81-84,97,共1页The Chinese Journal of Geological Hazard and Control

基　　金：国家自然科学基金资助项目 (5 0 0 740 2 1)

摘　　要：针对综放锚网支护沿空顺槽合理小煤柱尺寸难确定的问题 ,该文在分析了合理煤柱尺寸确定原则的基础上 ,提出了针对顺槽具体地质条件采用理论分析、数值计算和工程实践 3方面综合分析确定合理小煤柱尺寸的方法。并对济宁二号煤矿 2 30 2综放锚网支护沿空顺槽煤柱尺寸进行了具体确定 (3 0～ 4 5m)。 2 30 2综放沿空顺槽采用 46 0m煤柱护巷的施工实践证明 ,煤柱尺寸的确定是合理的 。Rational width of small coal pillar is difficult to determine in roadways driving along next goaf supported by bolting and meshing in fully mechanized sub level caving face. On account of determination principle of rational width of coal pillar, the paper put forward a determination method which is analyzed and determined synthetically by theoritical analysis, numerical counting and engineering practice. Directing specific geological condition in 2302 roadway driving along next goaf supported by bolting and meshing of fully mechanized sub level face, the rational width of small coal pillar was concretely determined using this method(3 0～4 5*!m). It is practically proved rational by 2302 roadway driving along next goaf under 4 0*!m width coal pillar. The paper puts forward a new method for determination of rational coal pillar width of similar roadways driving along next goaf supported by bolting and meshing.

关 键 词：综放工作面 沿空顺槽 锚网支护 煤柱尺寸 

分 类 号：TD822.3[矿业工程—煤矿开采]