重力式挡土墙课程设计(通用版)解析 下载本文

重力式挡土墙课程设计

重力式挡土墙课程设计

作学班学指所提

者姓名 号 级

土 木 工 程

建 筑 工 程 系

科导在交

专教院日

业 师 系 期

1

重力式挡土墙课程设计

设计任务书

一、 设计题目

本次课程设计题目:重力式挡土墙设计

二、 设计资料

1、线路资料:建设地点为某一级公路DK23+415.00~DK23+520.00段,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?0?18kN/m3,内摩擦角??35?;墙后填土表面为水平,即??0?,其上汽车等代荷载值q?15kN/m2;地基为砾石类土,承载力特征值

fk?750kPa;外摩擦角?取14?;墙底与岩土摩擦系数??0.6。

3、墙体材料采用MU80片石,M10水泥砂浆,砌体抗压强1.14N/mm2,砌体重度?0?24kN/m3。

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)

2

重力式挡土墙课程设计

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·················································8

3