重力式挡土墙课程设计重力式挡土墙设计
重力式挡土墙课程设计重力式挡土墙设计
重力式挡土墙课程设计重力式挡土墙设计
重力式挡土墙课程设计
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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
重力式挡土墙课程设计重力式挡土墙设计
重力式挡土墙课程设计重力式挡土墙设计
重力式挡土墙课程设计重力式挡土墙设计
设计计算书
一、设计挡土墙的基础埋深、断面形状和尺寸
如图所示,挡土墙墙体高为H=8。5m,基础埋置深度d=1.5m,墙身纵向分段长度为L=10m;墙面与墙背平行,墙背仰斜,仰斜坡度1:0.25(02’),墙底倾斜度0。2:1(ω=°),墙顶宽2。1m,墙底宽2m。
二、主动土压力计算
1、 计算破裂角
经试算,按破裂面交于荷载中部进行计算:ﻩ
〈90°
tan=-tan+
=-0。701+=0。722
=35。8°
2 、计算主动土压力系数K和K1
重力式挡土墙课程设计重力式挡土墙设计
重力式挡土墙课程设计重力式挡土墙设计
重力式挡土墙课程设计重力式挡土墙设计
K=
=
3、计算主动土压力的合力作用点
kN
=
三、挡土墙截面计算
重力式挡土墙课程设计重力式挡土墙设计
重力式挡土墙课程设计重力式挡土墙设计
重力式挡土墙课程设计重力式挡土墙设计
ﻩ
图3—4—1 挡土墙计算图
1、计算墙身重G及力臂ZG
墙身体积计算:
墙身自重计算:
力臂ZG计算:
ZG1=0。125H+0.476b1=×8.5+0。476×=
ZG2=0.6
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