[1]梁建文,吴泽群,辛钰,等.断层错动下盾构隧道抗震措施研究[J].地震工程与工程振动,2020,40(01):001-11.[doi:10.13197/j.eeev.2020.01.1.liangjw.001]
 LIANG Jianwen,WU Zequn,XIN Yu,et al.Seismic countermeasures of shield tunnel under fault movement[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2020,40(01):001-11.[doi:10.13197/j.eeev.2020.01.1.liangjw.001]
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断层错动下盾构隧道抗震措施研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
40
期数:
2020年01
页码:
001-11
栏目:
论文
出版日期:
2020-05-30

文章信息/Info

Title:
Seismic countermeasures of shield tunnel under fault movement
作者:
梁建文12 吴泽群2 辛钰2 巴振宁12
1. 天津大学 水利工程仿真与安全国家重点实验室, 天津 300350;
2. 天津大学 建筑工程学院, 天津 300350
Author(s):
LIANG Jianwen12 WU Zequn2 XIN Yu2 BA Zhenning12
1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300350, China;
2. School of Civil Engineering, Tianjin University, Tianjin 300350, China
关键词:
盾构隧道断层错动壳-弹簧模型抗震措施混凝土损伤
Keywords:
shield tunnelfault movementshell-spring modelseismic countermeasureconcrete damage
分类号:
TU311
DOI:
10.13197/j.eeev.2020.01.1.liangjw.001
摘要:
采用混凝土塑性损伤本构模拟盾构管片,建立三维有限元壳-弹簧模型,开展了在45°断层错动下盾构隧道结构响应的静力弹塑性分析。研究表明,在正断层和逆断层错动下,衬砌受压损伤最大值均分布在拱顶处,衬砌受拉损伤最大值均分布在拱腰处;正断层错动下,环间螺栓易发生受拉破坏;逆断层错动下,混凝土管片易发生拉压损伤破坏。替换断层附近土体为软土的同时提高螺栓强度等级,可有效抵御较大的断层错动位移。研究对断层错动下盾构隧道的抗震措施具有一定参考价值。
Abstract:
A three-dimensional finite element shell-spring model was established to analyze the structural response of shield tunnel under fault movement by simulating the shield segment with the concrete damaged plasticity model. The research shows that under the movement of 45° normal fault and reverse fault, the maximum value of the compressive damage of the lining is distributed at the arch crown, and the maximum value of the tensile damage of the lining is distributed at the hance. Under the action of normal fault, bolts between rings are easy to be damaged by tension at first. Under the action of reverse fault, the concrete segments are easy to be damaged by tension and compression. The results show that the tolerable fault displacement can be effectively increased by using soft soil near the fault and improving bolt strength level. The study can provide some references for the seismic countermeasures of shield tunnel under fault movement.

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备注/Memo

备注/Memo:
收稿日期:2019-05-19;改回日期:2019-08-17。
基金项目:国家自然科学基金项目(51578372)
作者简介:梁建文(1965-),男,教授,博士,主要从事地震工程研究.E-mail:liang@tju.edu.cn
更新日期/Last Update: 1900-01-01