无锡火车站综合交通枢纽超大面积基坑工程设计与实践

发布时间：2018-05-07 12:49

本文选题：有限跨结构 + 支撑系统　；参考：《土木工程学报》2015年S2期

【摘要】：无锡火车站综合交通枢纽工程集高铁站、地铁、公交等众多功能于一身,其基坑工程规模大、开挖深度深、周边环境复杂、组成单体众多,而且各单体工期要求不一,部分单体工期要求极为紧迫。设计紧扣工程的特点,经过多种基坑支护设计方案的技术、经济和工期的综合对比分析,最终针对本工程量身定制,采用了"整坑围护,分阶段实施"的总体设计方案,并应用了以有限跨结构作为支撑、大直径旋喷可回收锚索、盖挖顺作等一系列新技术。该总体方案和一系列新技术的应用大幅度缩短了本工程关键区域的工期,对不同的环境条件实现了区别化的保护,并节省了工程造价,取得了良好的社会和经济效益。
[Abstract]:Wuxi railway station comprehensive transportation hub project integrates many functions such as high-speed railway station, subway, public transportation and so on. Its foundation pit project has large scale, deep excavation depth, complex surrounding environment, numerous components, and different requirements for construction period. Part of the single time limit is extremely urgent. According to the characteristics of design and fastening engineering, through the technical analysis of various supporting schemes of foundation pit, the comprehensive comparison and analysis of economy and time limit, the overall design scheme of "whole pit enclosure, phased implementation" is adopted for the purpose of customizing the body of the project. A series of new techniques, such as the finite span structure as the support, the large diameter rotary shotcrete recoverable Anchorage cable, the cover digging and so on, are applied. The application of the overall scheme and a series of new technologies has greatly shortened the construction period of the key areas of the project, protected different environmental conditions, saved the project cost, and achieved good social and economic benefits.
【作者单位】：同济大学;华东建筑设计研究总院;
【基金】：国家科技支撑计划(2012BAJ01B02) 上海市科委工程技术研发中心平台建设项目(13DZ2251400)
【分类号】：TU47

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