文档介绍：摘要
本设计为合肥胜利广场欢乐城A区深基坑支护设计,设计是根据国家现行《建筑基坑支护技术规程》(JGJ120-99),在给定地质勘察资料的条件下,进行方案比选、围护结构设计以及围护结构和开挖施工方案设计。通过方案比选,本基坑采用明挖,以钻孔灌注桩加锚杆(索)结合钢筋混凝土支撑作为支护结构。基坑支护结构设计用理正深基坑软件模拟出各个工况下钻孔灌注桩承受的弯矩、剪力与位移,最终得出钻孔灌注桩具体参数,根据这些参数进行围护结构施工。在整个施工过程中,进行了全方位的监测,确保基坑施工顺利完成。此次设计的主要指导原则是如何保证基坑的安全可靠、方便施工,并达到良好的经济效果。
关键词:深基坑,排桩,内支撑,锚杆(索),理正
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THE DESIGN OF DEEP RETAINING AND PROTECTION FOR EXCAVATIONS ABOUT HEFEI SHENGLI SQUARE CITY OF
JOY A DISTRICT
ABSTRACT
This design is about the design of deep retaining and protection for excavations about HeFei Shengli Square City of joy A District,The design is based on the existing national《Technical Specification for Retaining and Protection of Building Foundation Excavations》(JGJ120-99),With the geotechnical investigation report and surroundings around excavations,we need to choose and design retaining and protection structure,and design the retaining and protection structure and excavation excavations with open cut method,In order to soldier pile wall plus anchor (cable) with reinforced concrete strut as the retaining and protection design for retaining and protection for excavations structure under various conditions of software simulation of a bored pile under bending moment, shear and displacement, eventually get soldier pile wall concrete parameters, by these parameters for ensure the pletion of retaining and protection structure , a full range of monitoring in the intire of construction. How to ensure the safe and reliable foundation to facilitate the construction as well as economic effects in needed the main guiding principle of the design.
KEYWARDS:deep excavations, soldier pile wall, strut, anchor (cable ), Lizheng software
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目录
摘要 Ⅰ
ABSTRACT Ⅱ
第一章工程基本情况 1
工程概况 1
工程地质与水文地质条件 1
设计原则 3
基坑支护结构的极限状态 3
基坑支护结构的安全等级 3
基坑支护结构的水平位移 4
基坑支护设计要求 4
5
第二章基坑支护方案比选 6
6
基坑工程的特点 7
安全储备小、风险大 7
制约因素多 7
计算理论不完善 8
综合性知