重力式挡土墙课程设计重力式挡土墙设计.doc

重力式挡土墙课程设计
作者姓名
学号
班级
学科专业
土 木 工 程
指导教师
所在院系
建 筑 工 程 系
提交日期
设计任务书
设计题目
本次课程设计题目：重力式挡土墙设计
设计资料
１、线路资料:建设地点为某一级公路DK23+～DK2３+，在穿过一条深沟时，由于地形限制,无法按规定放坡修筑路堤，而采取了贴坡式（仰斜式)浆砌片石挡土墙。线路经过的此处是丘陵地区，石材比较丰富，挡土墙在设计过程中应就地选材,结合当地的地形条件,节省工程费用。
2、墙后填土为碎石土,重度,内摩擦角;墙后填土表面为水平，即,其上汽车等代荷载值；地基为砾石类土，承载力特征值；外摩擦角取；墙底与岩土摩擦系数。
3、墙体材料采用ＭＵ80片石，Ｍ10水泥砂浆，砌体抗压强1．１4，砌体重度。
4、挡土墙布置形式及各项计算参数如下图所示:
图４－1 挡土墙参数图（单位：m）
目录
设计任务书·················································２
一、设计题目·············································2
　 二、设计资料·············································2
设计计算书·················································4
一、设计挡土墙的基础埋深、断面形状和尺寸·················４
二、主动土压力计算·······································４
１、　计算破裂角········································4
2 、计算主动土压力系数K和Ｋ1··························４
3、计算主动土压力的合力作用点·························５
　三、挡土墙截面计算·······································5
1、计算墙身重G及力臂ＺＧ·······························6
２、抗滑稳定性验算·····································６
3、抗倾覆稳定性验算···································6
　4、基底应力验算·······································７
5、墙身截面应力验算···································7
四、设计挡土墙的排水措施·································8
五、设计挡土墙的伸缩缝和沉降缝···························８
六、参考文献·············································8
七、附图······························