Grouting techniques for the unfavorable geological conditions of Xiang'an subsea tunnel in China

被引：78
|
作者：
Zhang, Dingli [1 ]
Fang, Qian [1 ]
Lou, Haicheng [1 ]
机构：
[1] Beijing Jiaotong Univ, Key Lab Urban Underground Engn, Educ Minist, Beijing 100044, Peoples R China
来源：
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING | 2014年 / 6卷 / 05期
关键词：
Subsea tunnel; Weathered rocks; Grouting; Water inflow;
D O I：
10.1016/j.jrmge.2014.07.005
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
One of the major challenges during subsea tunnel construction is to seal the potential water inflow. The paper presents a case study of Xiang'an subsea tunnel in Xiamen, the first subsea tunnel in China. During its construction, different grades of weathered geomaterials were encountered, which was the challenging issue for this project. To deal with these unfavorable geological conditions, grouting was adopted as an important measure for ground treatment. The grouting mechanism is first illustrated by introducing a typical grouting process. Then the site-specific grouting techniques employed in the Xiang'an subsea tunnel are elaborated. By using this ground reinforcement technique, the tunneling safety of the Xiang'an subsea tunnel was guaranteed. (C) 2014 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. All rights reserved.
引用
收藏
页码：438 / 446
页数：9
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