摘要: 基坑工程的定义：是指在地下开挖一个地下空间及其配套的支护系统。基坑支护便是为了确保基坑开挖，为了使基础工程顺利进行，基坑周围环境的安全对基坑侧壁及周边环境选用的支挡，加固与保护措施都是非常重要的。22842
基坑支护系统是一种临时结构，安全系数小，具备较大危险系数，基坑工程具有非常强的区域性。不一样的水文，工程地质天气条件会使基坑工程的差异很大。基坑工程环境繁杂，对基坑的开挖不仅要确保基坑自身的稳定，而且要掌握基坑周边地层的移动并且要保护周边的环境。
本文先介绍了洛阳路站的工程概况，包括水文地质和周围环境，然后，基于现有的对基坑工程的开挖方法和洛阳站开挖方案的实际情况，进行选择了适合本站的开挖支护方案。然后就是在结构内力的计算，土压力，验算，支撑设计，变形预测方面为基坑开挖提供理论支持。
毕业论文关键词: 支护方案；地下连续墙；支撑
Zhengzhou luoyang road subway station of metro line 1 excavation support design
Abstract:The definition of excavation：Refers to an underground space in the underground excavation support system and its supporting.Excavation is to ensure that excavation, foundation engineering in order to make smooth, safe excavation pit sidewalls of the surrounding environment and the choice of retaining the surrounding environment, reinforcement and protection measures are very important.
Excavation system is a temporary structure, the safety factor is small, with a greater risk factor, excavation has a very strong culture.Not the same as hydrology, engineering geology weather conditions make the difference excavation works great. Complex environment excavation, excavation of the pit pit themselves not only to ensure stability, but also to grasp and move around foundation formations to protect the surrounding environment.
This paper first introduces the Project Overview Luoyang Road station, including hydrogeological and surroundings, then, based on the existing methods of excavation pit excavation engineering and Luoyang station program the actual situation, choose a suitable site to open excavation and Support program.Then is the calculation of internal forces in the structure, soil pressure, checking, support design, deformation prediction for the excavation to provide theoretical support.
KeyWords: Support programs； underground continuous wall； support
目  录
1  前言    1
1.1  目的和意义    1
1.2  国内外现状与水平    1
1.3  发展趋势    2
1.4  地铁深基坑开挖引起的环境效应及防治措施    3
2  工程概况    7
2.1 基本资料    7
2.2 工程地质条件    7
2.3 水文地质条件    7
2.3.1 地下水位    8
2.3.2 地下水类型、赋存方式、补给及流向    8
2.3.3 地下水水质特征及水、土腐蚀性    8
2.3.4 车站抗浮、抗渗设计水位    8
2.4特殊地质条件    8
3  支护方案的选择    9
3.1  基坑的特点    9
3.2 支护方案的选择    9
4  土压力计算    10
4.1  地面荷载的确定    10
4.2 按分层土计算土压力    10
4.3 土层力学参数平均值    13
4.3.1 参数加权平均数    13
4.3.2 土压力计算    13
5  结构内力计算    15
5.1  计算理论的确定    15
5.2  结构内力计算及配筋    15 郑州市地铁1号线洛阳路地铁站基坑开挖支护设计+图纸:http://www.youerw.com/gongcheng/lunwen_15647.html