富水地层管廊结构裂损机理及修复技术研究  

Research on Fracture Mechanism and Repair Technology of Pipe Corridor Structure in Rich Water Stratum

作　　者：王洪涛 解学磊 范福强 张维欣 Wang Hongtao;Xie Xuelei;Fan Fuqiang;Zhang Weixin(School of Civil Engineering,Shandong Jianzhu University,Jinan 250101,P.R.China;Key Laboratory of Building Structural Retrofitting and Underground Space Engineering(Shandong Jianzhu University),Ministry of Education,Jinan 250101,P.R.China;Shandong Jigang Environmental Protection New Material Co.,Ltd.,Jinan 250200,P.R.China;Guangdong Tieke Grouting Technology Co.,Ltd.,Guangzhou 510663,P.R.China)

机构地区：[1]山东建筑大学土木工程学院,济南250101 [2]山东建筑大学建筑结构加固改造与地下空间工程教育部重点实验室,济南250101 [3]山东济钢环保新材料有限公司,济南250200 [4]广东铁科灌浆科技有限公司,广州510000

出　　处：《地下空间与工程学报》2025年第1期300-311,共12页Chinese Journal of Underground Space and Engineering

基　　金：国家自然科学基金(52374093);中国博士后科学基金(2022M711314);山东省自然科学基金(ZR2022ME088);济南市科研带头人工作室项目(20233054)。

摘　　要：城市地下综合管廊受材料种类、施工工艺、施工质量及后期外部环境荷载影响,极易出现结构裂缝、渗漏水等病害问题。本文以济南市某富水地层综合管廊工程为依托,开展了现场管廊工程结构健康状态检测分析,识别了结构竖向裂缝为主的病害特征。在此基础上,利用ABAQUS有限元软件,模拟分析了不同混凝土线膨胀系数与管节浇筑长度下结构侧墙裂损响应规律,揭示了侧墙裂缝分布模式与应力演化特征。最后,研发提出了一种新型改性环氧修复堵漏材料,通过新型材料单轴压缩试验与干-湿条件下粘结试验,揭示了新型材料对混凝土结构裂缝的修复机理,并进行了现场管廊裂缝堵漏应用实施。研究结果可为富水地层综合管廊结构裂缝病害防治提供理论与技术参考。Affected by material type,construction technology,construction quality and late external environmental load,urban underground comprehensive pipe corridor is prone to structural cracks,leakage and other diseases.Based on a water-rich strata integrated pipe corridor project in Jinan City,this paper carried out the detection and analysis of the health state of the structure of the pipe corridor project,and identified the disease characteristics of the structure mainly vertical cracks.On this basis,ABAQUS finite element software was used to simulate and analyse the cracking response law of the structural sidewalls under different concrete linear expansion coefficients and pipe section casting lengths,and reveal the distribution pattern of the sidewall cracks and the stress evolution characteristics.Finally,a new modified epoxy repair plugging material was developed and proposed.Through uniaxial compression test and dry-wet bonding test of the new material,the repair mechanism of the new material to the cracks of concrete structure was revealed,and the plugging application of pipe corridor cracks was carried out in the field.The research results of this paper can provide some theoretical and technical references for the prevention and control of structural cracks in the integrated pipe corridor in water-rich strata.

关 键 词：综合管廊 裂损特征 有限元模拟 渗漏水 裂缝修复 

分 类 号：TU990[建筑科学—市政工程]