Research on Allowable Grouting Pressure of Stone Arch Bridge Cracks by
Means of Fracture Mechanics

doi:10.3969 /j.issn.1674-0696.2012.02.03

Journal of Chongqing Jiaotong University(Natural Science) ›› 2012, Vol. 31 ›› Issue (2): 184-187.DOI: 10.3969 /j.issn.1674-0696.2012.02.03

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Research on Allowable Grouting Pressure of Stone Arch Bridge Cracks by Means of Fracture Mechanics

Jiang Xiaoyuan¹，Ning Jincheng²，Zhao Yafei³，Zhou Jianting¹

1. School of Civil Engineering ＆ Architecture，Chongqing Jiaotong University，Chongqing 400074，China; 2. Henan Communication Vocational Technology College，Zhengzhou 450005，Henan，China; 3. Transportation Research Institute of Guangxi，Nanning 530007，Guangxi，China

Received:2011-07-26 Revised:2011-10-10 Online:2012-04-15 Published:2014-10-31

基于断裂力学原理的石拱桥裂缝允许灌浆压力研究

蒋晓源¹，宁金成²，赵亚飞³，周建庭¹

1. 重庆交通大学土木建筑学院，重庆400074; 2. 河南交通职业技术学院，河南郑州450005; 3. 广西交通科学研究院，广西南宁530007

作者简介:蒋晓源( 1986 － ) ，女，重庆人，硕士研究生，主要从事桥梁加固研究。E-mail: xy-jiang86@163． com。
基金资助:
交通运输部西部交通建设科技项目( 200831895076) | 重庆市重大科技攻关项目( CSTC， 2008BA6038)

Abstract

Abstract: Based on the fracture mechanics，the crack stress intensity factors of the stone arch bridge under different grouting pressure are calculated，starting from a simple ANSYS fracture model． And then through the criterion of crack propagation， the allowable grouting pressure of entire grouting and the allowable grouting pressure with different segments grouting length are analyzed，which provides theoretical support for grouting pressure repair cracks．

Key words: fracture mechanics, crack, stress intensity factor, allowable grouting pressure

摘要： 基于断裂力学原理，从简单ANSYS 断裂模型出发，计算石拱桥砌石裂缝在不同灌浆压力作用下的缝端应力强度因子，再依据裂缝扩展准则工程判据，分析整段灌浆的允许灌浆压力以及不同分段灌浆长度下的允许灌浆压力，为压力灌浆修补裂缝技术提供理论支撑。

关键词: 断裂力学, 裂缝, 应力强度因子, 允许灌浆压力

CLC Number:

U448.32

Jiang Xiaoyuan，Ning Jincheng，Zhao Yafei，Zhou Jianting. Research on Allowable Grouting Pressure of Stone Arch Bridge Cracks by Means of Fracture Mechanics[J]. Journal of Chongqing Jiaotong University(Natural Science), 2012, 31(2): 184-187.

蒋晓源，宁金成，赵亚飞，周建庭. 基于断裂力学原理的石拱桥裂缝允许灌浆压力研究[J]. 重庆交通大学学报（自然科学版）, 2012, 31(2): 184-187.

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Research on Allowable Grouting Pressure of Stone Arch Bridge Cracks by Means of Fracture Mechanics

基于断裂力学原理的石拱桥裂缝允许灌浆压力研究

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