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| ENGINEERING GEOLOGICAL FEATURES OF ZHONGLIANG- SHAN TUNNEL OF CHENGDU-CHONGQING HIGHWAY |
| Tu Zhengling |
| Second Survey and Design Institute of MOR |
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Abstract Zhongliangshan Tunnel of Chengdu-Chongqing expressway is the longest tunnel of opening highways in China, The engineering geological conriiuon is very complex. The thesis discusses the hydrogeological conditions and the discharge forecast，the engineering geological problems about karst，gas，collapse, etc, and the prevention and treatment steps. The dangerousness partition of karst collapse has been forecasted.
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Received: 29 April 1996
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1996, Vol. 13 
