潞安矿区余吾煤矿绛河下开采3号煤层安全评价  

Safety Assessment of Coal No.3 Mining under Jianghe River in Yuwu Coalmine,Lu’an Mining Area

作　　者：杨连超[1] 刘顺喜[2] Yang Lianchao;Liu Shunxi(Shanxi Lu’an Environment Protection Energy Exploitation Co.Ltd.,Xiangyuan,Shanxi 046200;School of Resources and Environment,Henan Polytechnic University,Jiaozuo,Henan 454003)

机构地区：[1]山西潞安环保能源开发股份有限公司,山西襄垣046200 [2]河南理工大学资源环境学院,河南焦作454003

出　　处：《中国煤炭地质》2020年第10期75-78,共4页Coal Geology of China

摘　　要：通过对比3种标准下的“两带”名称及其岩层范围,明确了垮裂带概念,解决了概念混乱的问题。利用理论公式、余吾煤矿经验公式和潞安矿区经验公式计算,得出该矿放顶煤开采3号煤层形成的垮裂带最大高度分别为162.60、147.11、164.13 m。采用最大高度(164.13 m)分析该矿3号煤层垮裂带最高发育层位,认为依次能够达到K8、K10砂岩含水层及K10再向上68.71 m范围内的上石盒子组下段砂岩含水层。最后对该矿绛河下开采3号煤层进行安全评价,认为在无地质构造破坏的正常地段是安全的,在地质构造破坏地段则应采取留设防隔水煤柱或注浆加固等预防措施。Through comparison of names of caving zone,fracture zone and their strata range under three criteria has cleared cavingfracture zone concept,solved conception chaos between them.Through theoretical formula,empirical formulae from the Yuwu coalmine and Lu’an mining area worked out Yuwu coalmine coal No.3 caving method maximum caving-fracture zone heights have 162.60m,147.11m and 164.13m respectively.Then using the maximum height(164.3m)analyzed coal No.3 caving-fracture zone maximum developed horizon considered that it can reach K8,K10 sandstone aquifers in turn and once up again 68.71m range within Shangshihezi Formation lower member sandstone aquifer.Finally,carried out safety assessment for coal No.3 mining under the Jianghe River,and considered that if mining in normal without geological structure destructed segment will be safe,while in destructed segment should adopt preventive measures of safety pillar against water or grouting reinforcement etc.

关 键 词：绛河下采煤 垮裂带 安全评价 

分 类 号：TD745[矿业工程—矿井通风与安全]