高层住宅楼的建筑与结构设计基坑支护结构及监测系统设计
关键词：基坑支护结构；监测系统；支撑；止降水 Title Architectural and Structure Design of One High-rise Residential
Building (36-storey) in Nanjing - Foundation Pit Supporting
Structure and Monitoring System Design
Abstract
This project is the foundation pit supporting structure and monitoring
system design of a Nanjing (36 storeys) high-rise residential building,
firstly, use soil and water cost-effective computing method calculate
active earth pressure and passive earth pressure of support piles.
secondly, use equivalent beam method calculate the retaining pile bending
moment and the supporting piles reinforcement; the form of the support use
corner gusset and central support, use simplified calculation method
calculate the internal force of supports and reinforcement; the pit achieve
the purpose of sealing by setting the sealing curtain, the precipitation
is pided into dewatering precipitation and pressure precipitation and
calculated separately; use deep excavation design software calculate pit
unit and the overall structure; in this project, the pit is first level
pit, so the design of a monitoring system is rigorous to ensure the safety
of the project. At last, summarizes the results of the graduation project
in the end of the article.
Keywords: Foundation pit supporting structure; monitoring system;
support; precipitation
目 次
1 绪论 1
1.1 拟建场地土层地质情况 1
1.2 基坑周边环境 2
1.3 设计思路及方案选择 2
1.4 设计参数 2
1.5 基坑设计计算方法 3
2 基坑支护结构设计计算 3
2.1 X1 段两道支撑基坑设计计算 3
2.2 X2 段两道支撑基坑设计计算 9
2.3 X3 段两道支撑基坑设计计算 15
3 支撑体系结构设计计算 21
3.1 冠梁兼左围檩及围檩结构设计计算 22
3.2 支撑结构设计计算 25
3.3 联系梁结构设计计算 28
3.4 立柱结构设计计算 31
3.5 支撑系统换撑设计 33
4 基坑止降水方案设计计算 33
4.1 基坑止水方案设计计算 33
4.2 基坑降水方案设计计算 34
5 理正深基坑单元计算 37
5.1 X1段深基坑支护设计 37
5.2 X2 段深基坑支护设计 51
5.3 X3段深基坑支护设计 65
6 理正深基坑整体计算 79
7 基坑施工监测 84
7.1 基坑支护结构监测 84
7.2 基坑周围环境监测 85
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