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神东矿区是我国重要的煤炭产地,矿区覆岩结构具有浅埋深、薄基岩、厚风积沙的特点,且矿区地处干旱半干旱地区,水资源匮乏,因此实行绿色开采(保水采煤)具有重要意义。本文从不同岩性岩层破坏特征出发,结合岩层承载能力、变形能力分析,以及采动过程中覆岩相关物理量变化的分析,给出了一种预计导水裂隙带高度的力学模型,并分析了大柳塔12610工作面导水裂隙带高度。覆岩裂隙动态发育模拟结果和现场观测结果表明,该力学模型是可取的。
Shendong Mining Area is an important coal producing place in our country. The overburden rock structure in the mining area is characterized by shallow depth, thin bedrock and thick aeolian sand. The mining area is located in arid and semi-arid areas with scarce water resources, so green mining Coal) is of great significance. Based on the analysis of the damage characteristics of rock strata and the analysis of bearing capacity and deformation capacity of rock strata and the change of physical quantities of overlying strata during the mining process, a mechanical model for predicting the height of hydraulic conductivity fractured zone is presented. Daliu tower 12610 hydraulic fracturing zone height. The dynamic simulation of overburden rock fracture and the on-site observation show that the mechanical model is desirable.