Case Study on Risk Forecast Technique during Tunnel Construction at Karst Area
详细信息
- 责任者：Liu Zhi (State Key Laboratory of Geohazard Prevention and Geoenvironment Protection ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Deng Hui
- 刊名：The Chinese Journal of Geological Hazard and Control
- 出版年：2011
- 卷期：22(4)
- 关键词：岩溶环境 ; karst environment ; 隧道 ; tunnels ; 超前地质预报 ; advance geologic prediction
- 页码：p.74-80
- 图表：5 illus., 6 tables, 14 refs.
- 分类号：1702
- issnNo：ISSN1003-8035
- isbnNo：CN11-2825/P
摘要
In this paper, taking the Yinjiayan tunnel as the example, during the construction of the tunnel, the comprehensive geological prediction technology is implemented strictly for the tunnel complex karst geological environment conditions, which is successful to predict the karst cave in front of the tunnel face. According to the comparative analysis between the forecast result and geologic conditions in this tunnel, the accuracy of the overall prediction is more than 90%. In a word, it is confirmed that the comprehensive prediction method has the high efficiency and systematic properties.