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摘 要 镇江市岗子下安置房工程西临矿机路，南临鸿鹤桥路，交通便利。本工程地下车库近似为梯形，基坑面积约5757 2m ，基坑挖深北侧10.35m、其余侧9.55m。本次毕业设计针对该基坑工程项目工程地质、周边环境、基坑规模等条件，确定安全可靠的支护方案。主要工作包括： （1）介绍常见的基坑支护形式，对基坑形式优缺点进行对比。 （2）结合本工程的基坑特点，确定支护方案为钻孔灌注桩+二道混凝土内支撑。 （3）选取两个典型断面进行支护结构设计，计算内容包括土压力、灌注桩受力、基坑整体稳定性、抗隆起稳定性等。 （4）采用理正深基坑软件（7.0版）进行电算校核。 （5）针对选用的支护结构形式，编写施工工艺要求。 （6）针对基坑周边环境保护要求，确定基坑监测要求及监测报警值。 （7）绘制施工图，包括周边环境图、支护结构平面图、支护结构剖面及节点大样图。 58406
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- 下一篇：大学青年教师周转公寓基坑支护设计+CAD图纸
毕业论文关键词：基坑支护；钻孔灌注桩；钢筋混凝土支撑
Abstract The Zhenjiang Gangzixia housing placement project connects that Kuangji road to the west and borders Hongheqiao road to the west with a convenient transportation. The construction of this project is similar to the underground garage, the foundation pit area is about 5757m^2, and the excavation depth of foundation pit is 10.35m and 9.55m in the other sides. The graduation project for the foundation pit engineering geology, the surrounding environment, foundation pit size and other conditions, to determine the safety and reliability of the supporting program. Main work includes: (1) introduce the common foundation pit supporting form, and compare the advantages and disadvantages of the foundation pit form. (2) combined with the characteristics of the foundation pit of this project, the supporting scheme is defined as the bored pile + two concrete support. (3) select two typical sections of the support structure design, including the calculation of soil pressure, the pressure of the pile, the overall stability of foundation pit, uplift stability, etc.. (4) using Lizheng software (version 7) computer check. (5) according to the selection of the support structure, the preparation of construction technology requirements. (6) in view of the surrounding environmental protection requirements, determine the foundation pit monitoring requirements and monitoring alarm value. (7) construction plan, including the surrounding environment, supporting layout, structure supporting structure and profile detail.
Keywords:Excavation; Bored piles; Reinforcd concrete support.
目录
第一章绪论.1
1.1引言.1
1.2基坑工程发展现状.2
1.3常用基坑支护结构类型.3
1.4本课题主要研究内容.3
第二章基坑基本概况.5
2.1基坑工程概况.5
2.1.1工程概况5
2.1.2基坑概况7
2.2工程地质概况.8
2.3水文地质条件.9
第三章基坑支护方案.10
3.1设计原则.10
3.2本基坑工程特点.10
3.3设计依据.10
3.4支护方案的选择与比较.11
3.4.1本工程可以采用的支护方案11
3.4.2方案的比较及选用12
第四章围护方案设计计算.14
4.1基坑围护设计说明.14
4.2AB段支护计算15
4.2.1土压力计算15
4.2.2支反力计算（一道支撑时）25
4.2.3排桩桩身最大弯矩（一道支撑时）28
4.2.4支反力计算（二道支撑时）29
4.2.5排桩桩深最大弯矩（二道支撑时）29
4.2.6排桩配筋29
4.2.7抗隆起稳定性验算30
4.2.8抗倾覆验算31
4.3BCDA段支护计算32
江苏科技大学本科毕业设计（论文）
4.3.1土压力计算32