Service Life Prediction of Lining Concrete of Subsea Tunnel under Combined Compressive Load and Carbonation

作     者：陈静茹 CHEN Jingru,SONG Xiaocui,ZHAO Tiejun,TIAN Li(School of Civil Engineering,Qingdao Technological University,Qingdao 266033,China)

作者机构：School of Civil EngineeringQingdao Technological University 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2010年第25卷第6期

页      面：1061-1064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：Funded by the National Key Basic Research and Development Plans-973 Plans(2009CB623203) the Key Project of National Natural Science Foundation of China (50739001) the National Natural Science Foundation of China (50878109) the National Key Technology R & D Program (2007BAB27B03) the Education Ministry Doctor Foundation of China (20070429001) 

主　　题：Jiaozhou Bay subsea tunnel service life lining concrete durability carbonation property critical compressive load 

摘      要：Qingdao Jiaozhou Bay subsea tunnel is the second self-built tunnel in China with the designed service life over 100 *** durability of lining concrete are one of an important factors to determinate the service life of *** the main environmental loads and mechanical loads of subsea tunnel,the durability properties of lining concrete under combined action of compressive load and carbonation has been studied through the critical compressive load test,accelerated carbonation test,natural carbonation test and capillary suction *** tests results show that critical compressive load apparently accelerates the carbonation and deteriorates the anti-permeability of *** the combined action of critical compressive load and carbonation,the durability of lining concrete *** on the carbonization life criteria and research results,for the high-performance concrete with proposed mix ratio,the predicted service life of lining concrete for Jiaozhou bay subsea tunnel is about 80 years which fails to reach the required service *** is necessary to adopt other measurements simultaneously to improve the durability of lining concrete.