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| The Research of Comprehensive Geophysical Technology in Railway Coal Mine Goaf Exploration |
| LI Zhi-hua |
| The Third Railway Survey and Design Institute Group Corporation, Tianjin 300251,China |
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Abstract Combining our exploratory experience which adopts the coal goaf in recent years, this paper carries on systematic discussion and summary in the goaf comprehensive physical prospecting method, proposes the model of railway comprehensive geophysical prospecting coal goaf, in order to effectively guide the coal goaf prospecting work in the future, select the suitable comprehensive geophysical prospecting technology, produce such technological advantages as its high-efficient , economy and so on, improve geologic prospect precision, to offer important support for design and construction safety of railway in high-risk goaf area.Research conclusions:(1)Engineering geophysical exploration has already become the first-selected technology which solved the geological problem of goaf in railway prospection now, on the basis of investigating, for the geophysical prospecting of highway section in suspected to be goaf, instruct drilling and assigning with the geophysical prospecting result. (2)Through summarizing and studying,propose the comprehensive physical prospecting way considering the topography, the depth of goaf and geophysical prospecting method suitable,etc. (3)Select the suitable comprehensive geophysical prospecting technology, announc clearly the harmful geological body while reconnoitring. (4) This research results can offer reference to reconnoitre and design the goaf railway, highway, civil engineering.
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Received: 31 March 2014
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2014, Vol. 31 
