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摘要：本文的立意在于通过学习成功的基坑工程案列，以静安花园基坑工程作为工程背景，针对该基坑拓展对于基坑围护设计的学习。通过查阅文献并结合实际工程，通过等值梁法计算基坑的钢支撑结构所受的轴力、围护桩上的最大弯矩、桩的嵌固深度；并使用同济启明星软件对于所求基坑剖面进行稳定性验算，验算包括：基坑的整体稳定性验算、基坑的抗倾覆验算、基坑的坑底抗隆起验算、基坑的抗渗流验算和基坑的抗管涌验算。并为基坑设计一套可用的降水方案。再通过通用软件AutoCAD进行分析，同时进行基坑开挖过程中土体变形对附近的建筑物的影响做出分析。29290
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毕业论文关键词： 基坑围护；SMW工法；AutoCAD
Jing 'an garden SMW foundation pit retaining design
Abstract：Conception of this article is by learning the successful case of foundation pit engineering, as engineering background, foundation pit engineering in jing 'an garden in expanding the foundation pit for foundation pit retaining design study. By literature and combined with practical engineering, by equivalent beam method to calculate the steel support structure of the foundation pit of axial force and maximum bending moment on the retaining piles, pile built in depth; And use of tongji phosphorus software for demanding for calculating stability of foundation pit profile, check include: the overall stability of the foundation pit calculation, the rigidity calculation of foundation pit and foundation pit pit uplift resistance calculation, anti seepage calculation of foundation pit and foundation pit piping resistance calculation. And a set of available precipitation plan for foundation pit design. Through the finite element software ansys to finite element modeling analysis, simultaneously in the process of the excavation deformation of soil the effect of the buildings near the effect analysis.
KeyWords: Pit supporting、SMW construction method、AutoCAD
目录
1 绪论 6
1.1 本课题的意义 6
1.2 本课题在国内外的发展概况 7
1.3 本课题存在的问题 7
1.4 本课题应解决的问题 8
2 基坑围护结构与SWM工法的概述 8
2.1 基坑围护的概念 8
2.2 基坑围护的设计要求 9
2.3 基坑围护的类型及适用范围 9
2.4 基坑围护结构内支撑体系 11
2.5 SMW工法 11
2.5.1 SMW工法的概念 11
2.5.2 SMW工法在施工控制中的作用 12
3 启明星基坑文护设计计算 12
3.1 土层参数 12
3.2 基坑周边荷载 13
3.3 开挖与支护设计 13
3.4 挡墙设计 14
3.4.1 支撑(锚)结构设计 14
3.4.2 换(拆)撑设计 15
截面1-1 15
截面3-3 15
截面5-5 15
截面6-6 16
3.5 工况顺序 16
3.6 计算原理描述 19
3.6.1 围护墙主动侧土压力计算 19
3.6.2 朗肯主动土压力 19
3.6.3 围护墙被动侧土压力计算 20