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

作     者：Dingli Zhang Qian Fang Haicheng Lou 

作者机构：Key Laboratory for Urban Underground Engineering of the Education MinistryBeijing Jiaotong University 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)

年 卷 期：2014年第6卷第5期

页      面：438-446页

核心收录：

学科分类：081406[工学-桥梁与隧道工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：financial support given by the State Key Program of National Natural Science of China (Grant No.51134001) the Fundamental Research Funds for the Central Universities of China (Grant No.2012JBM081) 

主　　题：Subsea tunnel Weathered rocks Grouting Water inflow 

摘      要：One of the major challenges during subsea tunnel construction is to seal the potential water inflow. Thepaper presents a case study of Xiang＇an subsea tunnel in Xiamen, the first subsea tunnel in China. Duringits construction, different grades of weathered geomaterials were encountered, which was the challengingissue for this project. To deal with these unfavorable geological conditions, grouting was adoptedas an important measure for ground treatment. The grouting mechanism is first illustrated by introducinga typical grouting process. Then the site-specific grouting techniques employed in the Xiang＇ansubsea tunnel are elaborated. By using this ground reinforcement technique, the tunneling safety of theXiang＇an subsea tunnel was guaranteed.
2014 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting byElsevier B.V. All rights reserved.