龙东煤矿中央采区7煤层覆岩工程地质特征研究  

Research on overburden engineering features of No.7 seam in central mining block of Longdong Mine

作　　者：杨智[1] 吴基文[1] 宋中应 计平[2] 王建华[2] 汪林[1] 

机构地区：[1]安徽理工大学,安徽淮南232001 [2]上海大屯能源股份有限公司龙东煤矿,江苏沛县221613

出　　处：《煤炭工程》2007年第3期68-70,共3页Coal Engineering

摘　　要：覆岩的岩性及组合特征决定冒落带和导水裂隙带的发育高度和煤层顶板隔水性的强弱,岩石的物理力学性质决定了采场围岩的稳定性。论文详细研究了龙东煤矿中央采区7煤上覆岩层的工程地质特征,主要讨论了覆岩的厚度、组成、物理力学性质、矿物成分和结构类型等,研究表明覆岩的岩性和力学性质均有利于提高隔水性和抗裂性,为合理确定回采上限提供了科学依据。The rock property and combined features of the overburden rock would determinate the strength and weak of the developing height of the falling zone and water conducted fissure zone and the water isolation of seam. The physical mechanics property of the rock determined the stability of the surrounding rock in the mining face. The paper studied the project geological features of the overburden rocks above No. 7 seam in the central mining block of Longdong Mine. The paper mainly discussed the thickness, composition, physical mechanics property, mineral contents and structure type of the overburden rock. The study showed that the rock property and mechanics of the overburden rock ware all favorable to improve the water isolation and anti cracking, which provide the science basic to set up the upper limit of the mining.

关 键 词：覆岩 工程地质特征 回采上限 

分 类 号：TD163[矿业工程—矿山地质测量]