建筑物下的矿压规律研究及灾害防治

Research on Mine Pressure Regularity and Disaster Prevention and Control

利用UDEC离散单元法数值模拟综采面矿压规律的优越性,系统地模拟了不同条带尺寸下薄煤层短壁综采面矿压规律,最后在此基础上通过水害评价、现场监测确定出了40 m的合理开采条带,并辅以帷幕注浆的技术使16煤层的突水系数在0.044～0.086 MPa/m,同时使地表下沉量为80 mm,符合Ⅰ级损坏变形范围,能够满足保护建筑物的要求。

Using UDEC to stimulate the advantages of fully mechanized coal face mine pressure regularity, to simulate the different length, different propulsion strip short wall mining of thin seams fully mechanized coal face mine pressure regularity systematically and in detail , and finally on the basis of the evaiuation of flood damage , by field monitoring to determine the rational mining of 40 m strips, supplemented by curtain grouting technology to make of water inrush coefficient between 0.044 ～ 0.086 MPa/m in the 16 coal seam, while the surface subsidence is 80 mm, in the I level deformation range, which satisfy the requirements of the protection of buildings.