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| RESEARCH ON INTEGRATED GEOPHYSICAL EXPLORATION FOR RAILWAY SURVEY IN COAL MINE GOAF |
| LI Zhi-hua |
| The Third Railway Survey and Design Institute Group Corporation, Tianjin 300251, China |
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Abstract The railway survey in goaf area always faces such problems as tight schedule, high accuracy and high cost. The author preliminarily summed up the effective methods and models after years of research and practice, studied the advantages and disadvantages of various kinds of geophysical methods which were used for anomaly of the object body, and the detection depth and the anti-industrial stray current interference by taking into account the effect and efficiency. These methods and models can solve the problem of the distribution of the goaf. A large quantity of deep drilling work can be reduced, and reliable technical information can be provided for railway line selection and processing. The integrated geophysical technology has become the preferred technology for solving the engineering geological problems of the goaf area.
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Received: 30 August 2012
Published: 10 November 2012
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