综合管廊施工期间混凝土裂缝成因及其防治  

Review of the causes of utility tunnel concrete cracking during construction

作　　者：李密良 宋家茂 张勇[3] LI Miliang;SONG Jiamao;ZHANG Yong(China Metallurgical Group Co.,Ltd.,Wuhan 430081,China;Central Research Institute of Building&Construction Co.,Ltd.,Beijing 100088,China;Yunnan Normal University,Kunming 650092,China)

机构地区：[1]中国一冶集团有限公司,湖北武汉430081 [2]中冶建筑研究总院有限公司,北京100088 [3]云南师范大学,云南昆明650092

出　　处：《混凝土》2019年第7期157-160,共4页Concrete

摘　　要：综合管廊建设在我国正处于蓬勃发展阶段,该种地下管廊结构设计使用年限100年,其结构混凝土裂缝的出现对管廊长期耐久性有不利影响.综述了管廊混凝土施工中常见的裂缝分布状态、分析了裂缝出现的原因,并提出了防治措施。In the process of urbanization,it is necessary to construct utility tunnel for uniformly placing municipal pipelines.However,the cracks of the concrete have some detrimental effects on its load-carrying capacity and durability.It reviews the distribution of cracks in utility tunnel structures by analyzing the causes of cracks and proposes the prevention measures.

关 键 词：综合管廊 施工 混凝土开裂 防治 

分 类 号：TU528.07[建筑科学—建筑技术科学]