地下连续墙新型刚性接头设计与研究  

Design and Research on a New Rigid Joint of Underground Diaphragm Wall

作　　者：金国龙[1,2] 张永来 李鸿桥 JIN Guolong;ZHANG Yonglai;LI Hongqiao(China Shipbuilding NDRI Engineering Co.,Ltd.,Shanghai 200090,China;Department of Geotechnical Engineering College of Civil Engineering,Tongji University,Shanghai 200090,China)

机构地区：[1]中船第九设计研究院工程有限公司,上海200090 [2]同济大学土木工程学院地下建筑与工程系,上海200090

出　　处：《建筑施工》2024年第5期629-631,共3页Building Construction

基　　金：上海市2023年度“科技创新行动计划”启明星计划扬帆专项(23YF1451400)。

摘　　要：城市建设的快速发展促使对地下空间的需求日益增加,地下连续墙作为深大基坑的支护或结构外墙的应用也越来越多。针对“两墙合一”的地下连续墙,提出了一种新型刚性接头、防绕流接头板及施工工艺,能有效预防混凝土绕流问题,进而提高地下连续墙的整体刚度、强度以及接头的止水能力。通过数值模拟计算了刚性接头的承载力与延性,并与普通工字钢接头进行了对比。结果表明,采用新型刚性接头的地下连续墙,具有较好的刚度和受力性能,施工可行性高,具有较好的应用和推广前景。总结的经验可供今后类似工程借鉴。For the"two-in-one"diaphragm wall,a new type of rigid joint,anti-bypass joint plate and Construction progress are proposed,which can effectively prevent the problem of concrete bypass,thereby improving the overall stiffness and strength of the diaphragm wall and the water sealing capacity of the joint.The bearing capacity and ductility of the rigid joint were calculated by numerical simulation,and compared with those of the common I-beam joint.The results show that the diaphragm wall with the new rigid joint has good stiffness and mechanical properties,high construction feasibility,and good application and promotion prospects.

关 键 词：地下连续墙 刚性接头 接头箱 数值模拟 施工工艺 

分 类 号：TU746[建筑科学—建筑技术科学]