攀枝花市主干道沿线工程挡土墙设计.doc

成都理工大学工程技术学院毕业论文攀枝花市主干道沿线工程挡土墙设计作者姓名：专业名称：土木工程指导教师： 讲师成都理工大学工程技术学院毕业论文I摘要扶壁式挡土墙是一种钢筋混凝土薄壁式挡土墙，其主要特点是构造简单、施工方便，墙身断面较小，自身质量轻，可以较好的发挥材料的强度性能，能适应承载力较低的地基相对悬臂式挡土墙受力更好，适用 6～12m 高的填方边坡，可有效地防止填方边坡的滑动 本设计剖析了挡土墙的作用原理；分析了挡土墙的应用现状、研究现状及发展趋势；并完成了该扶壁式挡土墙的总体设计（主要尺寸的拟定） 、荷载及土压力的计算，内力计算，滑移稳定计算，倾覆稳定计算，地基承载力计算，结构计算；并进一步根据地质条件和现场要求进行优化设计以求达到安全适用的目的，寻求最佳经济效益 关键词：扶壁式挡土墙、土压力、荷载计算、结构、施工攀枝花市主干道沿线工程挡土墙设计IIABSTRACTButtressed retaining wall is a kind of reinforced concrete thin wall type retaining wall, its main characteristic is simple structure, convenient construction, wall body section is small, its quality is light, can better play to the strength of the material properties, and can adapt to the low bearing capacity of foundation. Relative cantilever retaining wall stress better, it is suitable for 6 ~ 12 m high embankment slope, can effectively prevent the fill slope sliding.The design analyzes the principle of retaining wall; Analyzes the present situation of the application of retaining wall, research status and development trend; And complete the overall design of the buttressed retaining wall (proposed) main dimensions, load and the calculation of earth pressure, internal force calculation and sliding stability calculation, overturning stability calculation of foundation bearing capacity calculation, structural calculation. And to further optimize design according to the geological conditions and the field requirement. In order to achieve the goal of safe using, seeking the best economic benefits.KEY WORDS: Buttressed retaining wall, earth pressure, load calculation, structure, construction攀枝花市主干道沿线工程挡土墙设计III目录摘要 .............................................................................................................................IABSTRACT...............................................................................................................II前言 ............................................................................................................................1第一章 挡土墙概述 ................................................................................................21．1 毕业设计课题—— 挡土墙的概述 ...........................................................21．2 挡土墙的类型及适用条件 .......................................................................31．2．1 重力式挡土墙 .............................................................................31．2．2 悬臂式挡土墙 .............................................................................31．2．3 扶壁式挡土墙 .............................................................................31．2．4 锚定板及锚杆式挡土墙 .............................................................41．2．5 加筋土挡土墙 .............................................................................41．2．6 土钉墙 ........................................................................................41．3 设计给定的工程地质条件 ......................................................................51．4 支挡结构的方案设计 ...............................................................................61．5 墙后回填土的选择 ..................................................................................6第二章 公路挡土墙设计 ........................................................................................72．1 边坡稳定性分析 ..............................................................................................72．2．1 土压力计算 .................................................................................92．2．2 抗滑移稳定性验算 ...................................................................102．2．3 抗倾覆稳定性验算 ...................................................................102．2．4 地基承载力验算 .......................................................................112．3 扶壁式挡土墙的设计 ............................................................................122．3．1 墙身构造设计 ...........................................................................122．3．2 截面尺寸拟定 ...........................................................................132．3．3 土压力的计算 ..........................................................................142．3．4 墙面板设计计算 ......................................................................152．3．5 墙踵板设计计算 .......................................................................20攀枝花市主干道沿线工程挡土墙设计IV2．3．6 扶肋设计计算 ..........................................................................242．3．7 容许应力验算 ...........................................................................262．3．8 配筋设计 ..................................................................................292．4 施工设计方案比选 ................................................................................342．5 扶壁式挡墙结构加固措施 ....................................................................352．5．1 基底拓展 ...................................................................................352．5．2 排水设计 ...................................................................................352．5．3 沉降缝和伸缩缝的设置 ...........................................................36第三章 总结 .......................................。