某露天矿南帮滑体西部边界形态测定

Determination of West Boundary for Landslide Body of the South Slope in an Open-Pit Mine

针对某露天矿南帮边坡在蠕动变形过程中显现出的滑体形态,在滑体东部和南部边界形态已知的情况下,采用现场测量,INSAR卫星监测确定了西部边界的地表形态;运用微震监测技术,确定出了西部边界地下滑移面,结合地表形态,得到滑体西部边界空间形态;利用三维建模技术建立了矿山主要研究区域的地质层位三维模型以及南帮滑体底部滑动面.西部边界与底部滑动面形态的确定为后续南帮边坡主滑体形态的确定提供了一定的理论依据.此次协同监测方案对具有类似滑坡体潜在危险的矿山边坡监测具有一定的借鉴意义.

Aiming at a landslide appeared during the creep deformation in the south slope of an open-pit mine, the surface morphology of the west boundary of the landslide was determined by using the on-site measurement and the INSAR technique when the east and south boundary shape were already known. Meanwhile, the underground sliding surface was determined by micro-seismic monitoring technique and the west boundary shape was determined according to the surface morphology and the underground sliding surface. Both the geological horizons in the main researching area and the bottom sliding surface of the landslide body were established by the 3D modeling technique. The west boundary shape provides a theoretical basis for the following determination of the landslide shape in the south slope. This collaborative monitoring programme can be a reference for mine slope monitoring under the similar condition.