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| Application of TSP 203 in Tunnel Construction |
| WANG Bing-di |
| Southwest Construction Headquarter, China Railway 24th Bureau Group Co.Ltd. , Chengdu, Sichuang 610031,China |
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Abstract Research purposes：Taihang Mounta in Tunnel is pressing in construction schedule and complicated in topographic and geologic conditions . To ensure the tunnel completion in time and speed up the construction process, this paper researches the usage methods, working contents, working procedures and data analysis methods of the advanced prediction and forecast technology TSP 203 for rapid and accurate surveying the engineering geological and hydrogeological conditions ahead of the tunnel.
Research conclusions：TSP 203 can accurately predict the nature, location and scale of the rock body in the area of 100-150 m ahead of the tunnel, especially the unfavorable geology, such as karst caves, fault zone and fracture zone. Application of TSP 203 in tunnel construction can reduce the blindness in tunnel construction, effectively prevent the appearances of the unfavorable geological disaster and construction accidents, and speed up the construction progress.
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Received: 15 December 2009
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2010, Vol. 27 
