11米深基坑土钉墙及排桩支护设计计算书

《11米深基坑土钉墙及排桩支护设计计算书》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、----------------------------------------------------------------------验算项目:D-E-A段土钉墙----------------------------------------------------------------------[验算简图]----------------------------------------------------------------------[验算条件]---------------------------------------------

2、-------------------------[基本参数]所依据的规程或方法：《建筑基坑支护技术规程》JGJ120-99基坑深度：11.300(m)基坑内地下水深度：20.000(m)基坑外地下水深度：20.000(m)基坑侧壁重要性系数：1.100土钉荷载分项系数：1.250土钉抗拉抗力分项系数：1.300整体滑动分项系数：1.300[坡线参数]坡线段数3序号水平投影(m)竖向投影(m)倾角(°)12.2005.50068.220.8000.0000.032.3205.80068.2[土层参数]土层层数8序号土类型土层厚容重饱和容重粘聚力内摩擦角钉土

3、摩阻力锚杆土摩阻力水土(m)(kN/m^3)(kN/m^3)(kPa)(度)(kPa)(kPa)1杂填土1.50015.020.08.010.020.020.0合算2素填土1.00018.018.018.016.020.020.0分算3中砂2.50020.518.00.030.060.060.0分算4稍密卵石0.60021.018.05.038.090.090.0分算5密实卵石2.60023.018.010.050.0150.0150.0分算6稍密卵石1.30021.018.05.038.090.090.0分算7中密卵石1.50022.018.05.045

4、.0120.0120.0分算8密实卵石6.00023.018.010.050.0150.0150.0分算[超载参数]超载数1序号超载类型超载值(kN/m)作用深度(m)作用宽度(m)距坑边线距离(m)形式长度(m)1满布均布10.000[土钉参数]土钉道数8序号水平间距(m)垂直间距(m)入射角度(度)钻孔直径(mm)长度(m)配筋11.4001.00020.0508.0001D1421.4001.40020.0508.0001D1831.4001.40020.0506.0001D2241.4001.40020.0505.0001D1451.4001.40

5、020.0505.0001D1261.4001.40020.0505.0001D1271.4001.40020.0505.0001D1681.4001.40020.0503.0001D14[花管参数]基坑内侧花管排数0基坑内侧花管排数0[锚杆参数]锚杆道数0[坑内土不加固][内部稳定验算条件]考虑地下水作用的计算方法：总应力法土钉拉力在滑面上产生的阻力的折减系数：0.900*******************************************************************[验算结果]********************

6、***********************************************[局部抗拉验算结果]工况开挖深度破裂角土钉号土钉长度受拉荷载标准值抗拔承载力设计值抗拉承载力设计值满足系数(m)(度)(m)Tjk(kN)Tuj(kN)Tuj(kN)抗拔抗拉11.50039.1022.90041.518.00010.734.346.22.3263.13434.30044.018.0003.632.946.26.5539.20328.0009.952.776.33.8875.63345.70045.818.0003.431.746.26.6919.

7、74828.0009.348.776.33.8065.96736.00029.351.7114.01.2832.83157.10048.518.0003.132.646.27.55710.70928.0008.550.876.34.3606.55536.00026.753.2114.01.4503.11045.00022.481.146.22.6321.50068.50050.018.0002.931.946.27.88611.42228.0007.948.376.34.4266.99136.00025.050.4114.01.4663.31745.000

8、21.076.446.22.6461.60055.0000.076