Technical Research on Detecting and Monitoring of Gob and Subsidence of Small Colliery in the West of Beijing
ZHAI Shuhua
LI Liangjing
MAO Jian
AN Liwei
Abstract：Due to the disordered and predatory exploitation over the years,the situation of gob and sub-sidence of small colliery in the west of Beijing is complex and difficult to be detected and prevented.Taking the Nangang Village of Mentougou as an example,this paper ascertains the distribution of underground gob area by means of comprehensive geophysical methods,including the electromagnetic induction,high-density resistivity and GPR,combined with GPS,hydrostatic level,deep inclinometer and microseismic technology to conduct real-time monitor.Results show that surface and underground deformation is very small,dynam-ic action is mimic,the deformation is on the slow-residence deformation period,the surface is stable if no large disturber occurs.
Keywords：gob and subsidencereal-time monitoringresidual deformationstability analysis
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 76-82 )