摘要随着科技的发展，人们生活水平不断提升，对住房的安全更为重视。因此，建筑行业也随之飞速发展。对于高层建筑，基坑支护工程尤其重要，且基坑支护的要求也随人们的重视而得到提高。工程技术人员为了满足建造更安全的基坑支护，必须站在新的高度去研究基坑并创新新的支护方法。怎么设计出更安全、更合理并且更经济的基坑支护方案，已经成为世界建筑行业的共同话题。因此，本文使用了灌注桩支护和重力式水泥土墙支护这两种方式进行合理支护。先是通过手算。灌注桩设计通过计算土压力，并算出支撑内力和支护桩的最大弯矩，然后对灌注桩进行配筋，最后进行稳定性验算。重力式水泥土墙设计通过计算土压力，然后验算稳定性，最后对水泥土墙正截面应力进行验算。再用理正软件电算，检验支护是否符合要求。通过这次具体基坑支护设计和计算，学习和梳理了基坑支护的知识。87549

毕业论文关键词  基坑支护   灌注桩   重力式水泥土墙   井点降水

毕业设计说明书外文摘要

Title    A Residential Area foundation pit supporting design                                         

Abstract With the development of science and technology, people's living standards are continuously rising and people attach more attention to housing security than ever before。 Thus, the construction industry,taking this tide, develops in a rapid pace。 For high-rise buildings, excavation retaining project is particularly important, and its requirements also improve as people pay more attention to it。 In order to build a safer excavation maintenance, engineering and technical personnel must stand on a new height to study excavation retaining and innovate new support methods。 How to design a safer, more rational and more economical foundation bracing program has become a common topic in the world construction industry。 Therefore, this article uses Cast-in-place pile support and Gravity cement wall support to provide appropriate support。 To build a cast-in-place pile design, this article first calculates the earth pressure, support forces and maximum bending moment of supporting piles, and then reinforces the pile,and finally runs stability computations。 As for Gravity Cement walls design, this article first  calculates the earth pressure,and then checking the stability of cement walls, and finally check the normal section stresses。 After that, the article uses Lizheng software computing system  to verify whether the supports meet those requirements。 Through this particular excavation design and computation, I learned and sort out the relative knowledge。

Keywords  Retaining and protecting for foundation excavation  Cast-in-situ bored pile  Gravity Cement walls  Well point dewatering

目   次

1  绪论 1源-于,优~尔^论=文.网www.chuibin.com 原文+QQ7520~18766

1。1  拟建工程概况 1

1。2  区域气象、气候条件 1

1。3  地形、地貌及环境条件 2

1。4  地基土的构成、分布及特征分析 2

1。5  设计参数 3

1。6  设计思路及方案选择 3

2  支护结构设计与计算 5

2。1  AB段钻孔灌注桩加内支撑，以5为计算点 5