地铁隧道钢筋混凝土裂缝的治理  

Treatment of reinforced concrete crack in subway tunnel

作　　者：王新刚[1] 王建章 张云旗 刘凯利[3] 闻宝联[3] 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070 [2]天津市地下铁道建设公司,天津300060 [3]天津市汇聚慎实混凝土维护工程技术有限公司,天津300201

出　　处：《新型建筑材料》2006年第5期13-16,共4页New Building Materials

摘　　要：有效控制混凝土裂缝的发生、发展,是提高地铁隧道耐久性的关键。阐述了混凝土裂缝的种类,从收缩裂缝、温度裂缝、不均匀沉降裂缝等方面论述了裂缝产生的原因,并从工程设计、材料、施工、养护等方面提出了裂缝控制的措施与方法。对既有隧道的混凝土渗漏,根据不同情况,采取有针对性的治理方案进行治理,保障了结构的安全运营。To effectively control the oeeurrence and extension of concrete eraeks is the key for improving the durability of subway tunnel.The sorts and cause of cracks are analyzed from the aspect of contraction crack, temperature cracking and differential settlement cracking and the control measures are put forward on engineering design,materials,construction and maintenance ete.The particular treatment to concrete leakage of existing tunnel is also introduced according to different conditions to ensure safety operation of structure function.

关 键 词：隧道 耐久性 裂缝 治理 

分 类 号：TU755.7[建筑科学—建筑技术科学]