地下连续墙工字钢接头混凝土绕流机理分析及防治  

ANALYSIS OF MECHANISM OF FLOW AROUND CONCRETE STEEL JOINT OF DIAPHRAGM WALL AND ITS PREVENTION AND CONTROL TECHNOLOGY

作　　者：杨欢欢 杨双锁 鲍飞翔 糜瑞杰 牛少卿 YANG Huan-huan;YANG Shuang-suo;BAO Fei-xiang;MI Rui-jie;NIU Shao-qing(Department of Underground Engineering of the College of Mining Engineering,Taiyuan University of Technology,030024,Taiyuan,China)

机构地区：[1]太原理工大学矿业工程学院地下工程系,太原030024

出　　处：《建筑技术》2020年第4期461-464,共4页Architecture Technology

基　　金：国家自然科学基金项目(51274145);太原理工大学青年基金项目(120504020202)。

摘　　要：分析地下连续墙工字钢接头混凝土绕流的施工因素和力学因素,推导基于极限平衡理论和朗肯土压力理论的地下连续墙工字钢接头压力随深度的表达式.以太原南内环地铁站为例,对比分析有限元结果与推导表达式计算结果,验证了表达式的正确性.研究改进一种新型的地下连续墙防绕流工字钢接头结构,通过设置止浆铁皮、橡胶止水带、密封竖筋等,解决了地下连续墙连接处发生的混凝土绕流及渗漏水问题.Through the analysis of construction factors on the I-beam joint of underground continuous wall concrete flow and mechanical factors,deduced the limit equilibrium theory and rankine soil pressure theory of underground continuous wall beam joints based on pressure with the depth of expression,and in Taiyuan City,south loop subway station as an example,the results of finite element method and the formula calculation results,to verify the correctness of the formula.At the same time to discuss the improvement of a new type of underground continuous wall to prevent the flow around the steel joint structure,by setting the grout sheet,rubber sealing strip and sealing structure of vertical reinforcement,can well solve the flow generated underground continuous wall joints of the concrete and the problem of water leakage.

关 键 词：地下连续墙 工字钢接头 防绕流 力学分析 

分 类 号：TU71[建筑科学—建筑技术科学]