地下障碍物众多的软土地区“两墙合一”施工技术  

TWO-IN-ONE WALL CONSTRUCTION TECHNOLOGY FOR SOFT SOIL AREA WITH MANY UNDERGROUND OBSTACLES

作　　者：魏巍[1] 王超迪 任泽军 WEI Wei;WANG Chao-di;REN Ze-jun(Hangzhou Construction Quality safety supervision,310012,Hangzhou,China;Zhejiang Provincial Yijian Construction Group Ltd.,310012,Hangzhou,China)

机构地区：[1]杭州市建设工程质量安全监督总站,杭州310012 [2]浙江省一建建设集团有限公司,杭州310012

出　　处：《建筑技术》2024年第19期2326-2329,共4页Architecture Technology

基　　金：浙江省住房与城乡建设厅建设科研项目(2023K088)。

摘　　要：鉴于地下连续墙良好的围护性能与结构性能,“两墙合一”施工技术能最大限度地利用地下空间,因此被越来越广泛地应用于城市中心工程。沿海城市地质情况普遍较复杂,多为软弱土层,对地下连续墙成槽护壁质量要求高,通常采用TRD水泥土搅拌墙或三轴水泥搅拌桩两种工艺作为连续墙护壁兼外围护止水帷幕。通过结合工程实际对地下连续墙及其两侧护壁、内衬墙施工质量控制等关键技术进行研究分析,为类似复杂环境条件下的“两墙合一”施工提供参考。In view of the proper enclosure and structure performance for underground diaphragm walls,the two-in-one wall construction technology can maximize the use of underground space,so it is applied more and more widely downtown projects.In coastal cities with complicated geological conditions,mostly weak soil layers,the groove protection of underground diaphragm walls must meet high quality requirements.Under normal circumstances,the TRD cement mixed wall or triaxial cement mixed pile are constructed as the continuous wall protection and external water curtain.Based on the actual engineering conditions,the key technology for the construction quality control of the underground diaphragm wall and its side protections and lining wall was studied and analyzed,to provide a reference for the construction of similar two-in-one wall projects under complex environmental conditions.

关 键 词：TRD 三轴水泥搅拌桩 地下连续墙 障碍物 内衬墙 防渗漏 

分 类 号：TU74[建筑科学—建筑技术科学]