摘要
崔庄煤矿33上01、33上02、33下01工作面皆位于微山湖下,采用综放开采技术,在这三个工作面上方实测了20个断面,点间距30m,在主断面观测线上于拐点处、最大下沉值处、边界处各埋设三组观测点,每组布设三个测点。采用GPS-RTK进行三维坐标测量,按观测断面技术,绘制了下沉曲线图,求出了水下沉陷区域各种移动与变形角值及岩移参数,进行FLAC力学模拟。这次观测成果为崔庄煤矿水体下安全开采设计提供了可靠的依据。
The 33 upper 01,33 upper 02 and 33beloow 01 coal face of Cui Zhuang coal mine are all located below the Weishan Lake,Using longwall top coal caving technology,20 sections is surveyed above the three faces,distance between two points is 30m.three groups of observation points are built separately in the inflection point,the biggest submersion value place,the boundary place in the main sectional observation line,each group has three points.The three dimensional coordinate survey is carried on using GPS-RTK.According to the observation cross section,the submersion curves are drawn,each kind of the movement and deformation angular value and rock movement parameters in underwater subsidence region are gained,and also the FLAC mechanics simulation is carried on.This observation achievement provides the reliable basis for designing of the safe mining under waters in Cui Zhuang coal mine.
出处
《矿山测量》
2010年第4期11-13,17,共4页
Mine Surveying
