错缝输水盾构隧道衬砌力学性能试验研究  

TEST RESEARCH ON MECHANICAL PROPERTY OF STAGGERED JOINT WATER CONVEYANCE SHIELD TUNNEL LINING MASONRY

作　　者：王振宇 赵佶彬 胡玺 徐骞 柳献[2] WANG Zhen-yu;ZHAO Ji-bin;HU Xi;XU Qian;LIU Xian(China Power Engineering Consulting Group East China Electric Power Design Institute Co.,Ltd.,200092,Shanghai,China;School of Civil Engineering,Tongji University,200092,Shanghai,China;Sanmen Nuclear Power Company,317100,Sanmen,Zhejiang,China)

机构地区：[1]中国电力工程顾问集团华东电力设计院有限公司,上海200092 [2]同济大学土木工程学院,上海200092 [3]三门核电有限公司,浙江三门317100

出　　处：《建筑技术》2022年第2期213-217,共5页Architecture Technology

基　　金：国家自然科学基金项目(51578409)。

摘　　要：针对三门核电站二期取排水盾构隧道工程设计问题,通过接头足尺试验,研究错缝拼装管片的受力性能,包括极限承载能力和破坏模式,利用单环压弯试验进行对比分析,探讨错缝与通缝衬砌在受力性能上的区别。主要结论为:(1)一般负弯矩纵缝接头处的弯矩传递系数相对较大;(2)对错缝拼装的衬砌而言,环缝和管片本体的破坏更易发生,而不会先发生纵缝破坏;(3)环间弯矩传递系数会随纵向力的上升而逐渐增大。Considering problems in the water supply and drainage shield tunnel design of Sanmen nuclear power station phase Ⅱ project, full-size joint test was carried out to research the mechanical property of staggered joint assembly tunnel segment, including limit bearing capacity and damage mode,and single-ring pressure bending test was conducted for contrastive analysis to discuss the mechanical property difference of staggered joint and through joint. This paper got some main conclusions, such as(1)the bending transfer coefficient at negative bending moment longitudinal joint is relatively big;(2) for staggered joint assembly lining masonry, damage of ring joint and tunnel segment itself happens more frequently, and longitudinal joint damage is rare;(3) bending moment transfer coefficient among rings increases after the increase of longitudinal force.

关 键 词：输水隧道 盾构隧道 错缝拼装 弯矩传递 

分 类 号：TU923[建筑科学—建筑设计及理论]