[an error occurred while processing this directive] Global Geology 2019, 22(3) 167-178 DOI:   10.3969/j.issn.1673-9736.2019.03.04  ISSN: 1673-9736 CN: 22-1371/P
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本文关键词相关文章
mud and water inrush
geological model
Xiangyun tunnel
Guangtong-Dali railway
structural mechanism
construction method
本文作者相关文章
PubMed
Structural mechanism and construction method of mud and water inrush in Xiangyun tunnel of Guangtong-Dali railway
WANG Yawei
Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China
摘要： Mud and water inrush in tunnel is a common problem in the construction process. Nowadays, the research and classification on this are mostly focused on karst situations. According to the characteristics of the surrounding rock and damage forms of the tunnel in the studied area, the author analyzed the geological and structural characteristics of mud and water inrush in tunnel and obtained their construction type. Meanwhile, the advanced water detection under the complex geological conditions was studied by using induced polarization method, transient electromagnetic method and three-dimensional seismic method, it can be concluded that the water-rich fracture zone exists within the detection range with a risk of large mud and water inrush disaster. The concrete construction treatment measures are put forward:①cement-water glass binary slurry is selected as the material for ground and hole grouting, its advantage is that the gel time can be controlled, and it has certain grout ability in the strata with large permeability coeffcient, which is conducive to excavate construction immediately after grouting. ②applying the mature retrograde grouting construction can reduce grouting time and improve the excavation efficiency.
关键词： mud and water inrush   geological model   Xiangyun tunnel   Guangtong-Dali railway   structural mechanism   construction method  
Structural mechanism and construction method of mud and water inrush in Xiangyun tunnel of Guangtong-Dali railway
WANG Yawei
Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China
Abstract: Mud and water inrush in tunnel is a common problem in the construction process. Nowadays, the research and classification on this are mostly focused on karst situations. According to the characteristics of the surrounding rock and damage forms of the tunnel in the studied area, the author analyzed the geological and structural characteristics of mud and water inrush in tunnel and obtained their construction type. Meanwhile, the advanced water detection under the complex geological conditions was studied by using induced polarization method, transient electromagnetic method and three-dimensional seismic method, it can be concluded that the water-rich fracture zone exists within the detection range with a risk of large mud and water inrush disaster. The concrete construction treatment measures are put forward:①cement-water glass binary slurry is selected as the material for ground and hole grouting, its advantage is that the gel time can be controlled, and it has certain grout ability in the strata with large permeability coeffcient, which is conducive to excavate construction immediately after grouting. ②applying the mature retrograde grouting construction can reduce grouting time and improve the excavation efficiency.
Keywords: mud and water inrush   geological model   Xiangyun tunnel   Guangtong-Dali railway   structural mechanism   construction method  
收稿日期 2018-08-20 修回日期 2018-11-25 网络版发布日期  
DOI: 10.3969/j.issn.1673-9736.2019.03.04
基金项目:

Supported by Project of China Railway 21 Bureau Group Co.,Ltd. (No.XJD20170815007).

通讯作者: WANG Yawei
作者简介:
作者Email: 704568233@qq.com
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