Research on mechanism for fissures to cause in concrete tunnel box

Journal of Chongqing Jiaotong University(Natural Science) ›› 2002, Vol. 21 ›› Issue (2): 87-89.

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Research on mechanism for fissures to cause in concrete tunnel box

CHEN Hong-kai,WANG Rong,TANG Hong-mei,WANG Kai,YUAN Jian-yi

Instituteof Geotechnical Engineering , Chongqing Jiaotong University , Chongqing 400074, China

Received:2001-04-23 Revised:2001-07-09 Online:2002-06-15 Published:2015-05-18

沟埋式砼箱涵裂缝成因研究

陈洪凯，王蓉，唐红梅，王凯，袁建议

重庆交通学院岩土工程研究所，重庆400074

作者简介:陈洪凯(1964—)，男，重庆江津人，教授、博士，长期从事结构、岩土、材料相互作用研究。
基金资助:
重庆世行贷款基金资助项目(20002)、(20011)、(20012)成果之一

Abstract

Abstract: Based on the analysis of the geological environment for an experimental concrete tunnel box under Shabin road and the circumstance of the distribution and development of cracks in the box, this paper divides these fissures into 3 types, i .e .fissure caused by the settlement of the base, fissure caused by overloads and fissure caused by material. Furthermore, the authors approach the mechanism for fissures to cause in the project

Key words: geological environment , fissures , formation , mechanism

摘要： 通过对重庆沙滨路砼箱涵试验段工程地质环境、裂缝分布及发展情况的分析，基于现场连续监测、结构计算及有限元数值计算，对砼箱涵内部出现的横向裂缝和纵向裂缝进行机理分析。研究认为，箱涵顶部填土荷载、地基纵向及横向不均匀沉降以及箱涵两侧回填土压实度不足是形成裂缝的主要动力原因

关键词: 工程地质环境, 裂缝, 成因, 机理

CLC Number:

TV331

CHEN Hong-kai , WANG Rong , TANG Hong-mei , WANG Kai , YUAN Jian-yi. Research on mechanism for fissures to cause in concrete tunnel box[J]. Journal of Chongqing Jiaotong University(Natural Science), 2002, 21(2): 87-89.

陈洪凯，王蓉，唐红梅，王凯，袁建议. 沟埋式砼箱涵裂缝成因研究[J]. 重庆交通大学学报（自然科学版）, 2002, 21(2): 87-89.

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Research on mechanism for fissures to cause in concrete tunnel box

沟埋式砼箱涵裂缝成因研究

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