我的毕业论文

南京大学金陵学院

本 科 毕 业 论 文

院 系 城市与资源学院

专 业 土木工程

题 目 新纬壹产业园基坑支护设计

年 级 2011级 学号 2011040500079

学生姓名 谢胜杰

指导老师 许宝田 职称 讲师

论文提交日

期

南京大学金陵学院本科毕业论文

毕业论文题目： 新纬壹产业园基坑支护设计 级本科生姓名：

指导教师（姓名、职称）： 许宝田

摘要

随着城市的迅猛发展，有限的地皮难以满足工程项目日益增长的需求。基

坑支护是基础工程施工中一个相对年轻的课题，同时也是尚未得到解决的岩土工

程问题之一。基坑支护问题即涉及土力学中的土压力问题，又包含了结构的刚度、

变形与稳定性问题，同时还涉及土与支护结构的共同作用。对这些问题的认识及

对策的研究，是随着土压力理论、计算分析技术、测试仪器以及施工机械、施工

技术的进步而逐渐完善的。

本次毕业设计以新纬壹产业园场地进行基坑支护设计。依据基坑支护设计规

范，确定安全等级，再结合本工程具体情况和目前基坑支护结构类型的认识和了

解，因地制宜，分析比选适合本基坑的支护形式。通过计算土压力、抗滑移稳定

性系数、抗隆起稳定性系数?了解稳定性分析的步骤，接着在通过理正基坑软件

进行电算，检验支护方案的合理性，并及时作出相应的完善。

关键词：基坑工程;支护设计；支护结构比选；稳定性验算

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南京大学金陵学院本科毕业论文

SPECIALIZATION:

Abstract

Our city is developing now. It is difficult to meet the growing construction object

with the limited land resources. Deep foundation support is a young subject of the

foundation engineering. It is one of the remained problems for the Geotechnical

engineering. The problems of the deep foundation support related to earth

pressure;structural stiffness; deformation and stability . It is also related to interaction

between support structure and soil . With the development of the earth pressure

theory;analysis technics;tester and construction machinery,these problems have

gradually added .

This article is based on the Xinweiyi industrial park for foundation pit supporting

design . I determine the level of security of the foundation pit according to the design

specifications of the foundation pit supporting,combined with the specific situation of

this project,the knowledge of different structures of the foundation pit supporting and

the understanding of local conditions,analyze and select appropriate scheme of the

foundation pit supporting . We can know the step of the stability analysis by the

calculation of earth pressure;anti-sliding stability checking;resistance to uplift stability

checking? Then,I examine the rationality by calculating the structure by the

software of lizheng,I also make some improvement based on the results .

Keywords:Foundation

calculation pit;Supporting design;Supporting Selection;Stability

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南京大学金陵学院本科毕业论文

目录

摘要 ............................................................................................................. I Abstract ...................................................................................................... II 目录 ........................................................................................................... III

第一章 绪论............................................................................................... 1

1.1 研究背景及意义 ......................................................................... 1

1.2 国内外研究现状 ......................................................................... 2

1.3 技术路线 ..................................................................................... 4

第二章 支护结构方案综合说明书 .......................................................... 5

2.1工程概况及基坑规模 .................................................................. 5

2.2工程水文地质条件 ...................................................................... 5

2.2.1工程地质条件 ................................................................... 6

2.2.2水文条件 ........................................................................... 7

2.3 支护结构设计概述 ..................................................................... 8

2.3.1设计依据与规范 ............................................................... 8

2.3.2 基坑设计安全等级 .......................................................... 9

第三章 支护结构设计方案比选及确定 .................................................. 8

3.1 基坑支护概述 ............................................................................. 8

3.2 基坑支护的方案及选择 ............................................................. 9

第四章 稳定性验算 ................................................................................ 13

4.1 设计计算参数确定 ................................................................... 13

4.1.1 地质计算参数 ................................................................ 13

4.1.2 计算区段的划分 ............................................................ 13

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南京大学金陵学院本科毕业论文

4.2 计算公式 ................................................................................... 14

4.2.1 土压力计算 .................................................................... 14

4.2.2 抗滑移稳定性验算 ........................................................ 14

4.2.3 抗倾覆稳定性验算 ........................................................ 15

4.2.4 抗隆起稳定性验算 ........................................................ 15

4.2.5 截面稳定性验算 ............................................................ 15

4.3 计算............................................................................................ 17

4.3.1 土压力计算 .................................................................... 17

4.3.2 稳定性验算 .................................................................... 20

第五章 理正软件计算 ............................................................................ 23

5.1 ABC段........................................................................................ 23

5.2 CDE段........................................................................................ 27

5.3 EF段 ........................................................................................... 31

5.4 FGA段........................................................................................ 35

第六章 总结与展望 ................................................................................ 39

参考文献 ................................................................................................... 40

致谢 ........................................................................................................... 41

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