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《Geophysical and Geochemical Exploration》 1992-03
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SEISMIC TOMOGRAPHIC IMAGING EXPERIMENT FORDETECTING COLLAPSING COLLAPSING PILLARS IN COAL MINES

Yang Wencai, Du Jianyuan(Beijing Computer Center, Ministry of Geology and Mineral Resources)  
Abstract Collapsing pillars constitute one of the major obstacles in mechanized comprehensive coal mining in North China; therefore, it is of great significance to detect the location and distribution of collaping pillars in the working area before comprehensive mining. This paper introduces the seismic tomographic imaging method for detecting collapsing pillars in coal mines, and makes ima ging test with physical simulation data. It is proved that the seismic tomo graphic imaging method can be used to pinpoint collapsing pillars in coal mines.
【Fund】: 国家自然科学基金和地震学联合基金资助的项目。
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