锚碇基坑地下连续墙围护结构作永久受力结构的应用研究

Study on Application of Underground Diaphragm Wall Enclosure as Permanent Stressed Structure for of Anchored Foundation Pit

摘要:

随着地下建设空间的进一步利用，地下连续墙应用范围不断向下拓展。目前，地下连续墙已经作为永久受力结构应用于建、构筑物主体结构中。基于上海远方相关地下连续墙锚碇基坑实践，对地下连续墙作永久受力结构的应用进行探讨，并针对框架式地下连续墙、桩-墙咬合式地下连续墙、圆形地下连续墙施工关键技术进行阐述。结果表明，作永久受力了的地下连续墙结构通常较为特殊，部分为特殊结构形式，部分包含特殊接头形式，在目前的施工技术下是可以实现地下连续墙作永久受力结构的。用集约高效，推进城市功能复合。创建“就近职住、 功能复合”的现代城市，在规划及设计中进行街道一体化设计。

Abstract:

With the further utilization of underground construction space, the application range of underground diaphragm walls has been expanding downward. At present, the underground diaphragm walls have been as the permanently stressed structures to use in the main structure of buildings and structures. Based on the practice of anchored foundation pit of underground diaphragm wall in Shanghai, the application of diaphragm walls as permanently stressed structures is discussed, and the key construction techniques of framed diaphragm walls, pile-wall occlusion diaphragm walls and circular diaphragm walls are elaborated. The results show that permanently stressed diaphragm wall structures are usually special, partly in the form of special structures and partly in the form of special joints. Under the current construction technology, it is possible to realize the underground diaphragm wall as a permanently stressed structure.