Structural mechanism and construction method of mud and water inrush in Xiangyun tunnel of Guangtong-Dali railway

doi:10.3969/j.issn.1673-9736.2019.03.04

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世界地质(英文版) ›› 2019, Vol. 22 ›› Issue (3) : 167-178. DOI: 10.3969/j.issn.1673-9736.2019.03.04

论文

Structural mechanism and construction method of mud and water inrush in Xiangyun tunnel of Guangtong-Dali railway

WANG Yawei

作者信息 +

Structural mechanism and construction method of mud and water inrush in Xiangyun tunnel of Guangtong-Dali railway

WANG Yawei

Author information +

文章历史 +

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.

Abstract

导出引用

WANG Yawei. Structural mechanism and construction method of mud and water inrush in Xiangyun tunnel of Guangtong-Dali railway[J]. 世界地质(英文版). 2019, 22(3): 167-178 https://doi.org/10.3969/j.issn.1673-9736.2019.03.04

WANG Yawei. Structural mechanism and construction method of mud and water inrush in Xiangyun tunnel of Guangtong-Dali railway[J]. Global Geology. 2019, 22(3): 167-178 https://doi.org/10.3969/j.issn.1673-9736.2019.03.04

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