抗滑桩计算.docx
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抗滑桩计算
抗滑动桩验算
计算项目:
平昌东站后侧滑坡PX1
------------------------------------------------------------------------
原始条件:
墙身尺寸:
桩总长:
19.000(m)
嵌入深度:
7.000(m)
截面形状:
方桩
桩宽:
1.200(m)
桩高:
1.800(m)
桩间距:
5.000(m)
嵌入段土层数:
1
桩底支承条件:
铰接
计算方法:
K法
土层序号土层厚(m)重度(kN/m3)内摩擦角(度)土摩阻力(kPa)K(MN/m3)被动土压力调整系数
150.00024.50037.00500.0080.0001.000
桩前滑动土层厚:
0.000(m)
锚杆(索)参数:
锚杆道数:
0
锚杆号锚杆类型竖向间距水平刚度入射角锚固体水平预加筋浆强度
(m)(MN/m)(度)直径(mm)力(kN)fb(kPa)
物理参数:
桩混凝土强度等级:
C35
桩纵筋合力点到外皮距离:
35(mm)
桩纵筋级别:
HRB400
桩箍筋级别:
HPB300
桩箍筋间距:
200(mm)
场地环境:
一般地区
墙后填土内摩擦角:
28.000(度)
墙背与墙后填土摩擦角:
14.000(度)
墙后填土容重:
22.000(kN/m3)
横坡角以上填土的土摩阻力(kPa):
20.00
横坡角以下填土的土摩阻力(kPa):
270.00
坡线与滑坡推力:
坡面线段数:
7
折线序号水平投影长(m)竖向投影长(m)
112.9745.133
23.0000.000
325.00010.000
40.0001.500
59.5000.000
60.000-1.500
750.0000.000
地面横坡角度:
6.000(度)
墙顶标高:
0.000(m)
参数名称参数值
推力分布类型矩形
桩后剩余下滑力水平分力0.000(kN/m)
桩前剩余抗滑力水平分力0.000(kN/m)
钢筋混凝土配筋计算依据:
《混凝土结构设计规范》(GB50010-2010)
注意:
内力计算时,滑坡推力、库仑土压力分项(安全)系数=1.200
=====================================================================
第1种情况:
滑坡推力作用情况
[桩身所受推力计算]
假定荷载矩形分布:
桩后:
上部=0.000(kN/m)下部=0.000(kN/m)
桩前:
上部=0.000(kN/m)下部=0.000(kN/m)
桩前分布长度=0.000(m)
(一)桩身内力计算
计算方法:
K法
背侧--为挡土侧;面侧--为非挡土侧。
背侧最大弯矩=0.000(kN-m)距离桩顶0.000(m)
面侧最大弯矩=0.000(kN-m)距离桩顶0.000(m)
最大剪力=0.000(kN)距离桩顶0.000(m)
最大位移=0(mm)
点号距顶距离弯矩剪力位移土反力
(m)(kN-m)(kN)(mm)(kPa)
10.0000.0000.0000.000.000
20.3750.0000.0000.000.000
30.7500.0000.0000.000.000
41.1250.0000.0000.000.000
51.5000.0000.0000.000.000
61.8750.0000.0000.000.000
72.2500.0000.0000.000.000
82.6250.0000.0000.000.000
93.0000.0000.0000.000.000
103.3750.0000.0000.000.000
113.7500.0000.0000.000.000
124.1250.0000.0000.000.000
134.5000.0000.0000.000.000
144.8750.0000.0000.000.000
155.2500.0000.0000.000.000
165.6250.0000.0000.000.000
176.0000.0000.0000.000.000
186.3750.0000.0000.000.000
196.7500.0000.0000.000.000
207.1250.0000.0000.000.000
217.5000.0000.0000.000.000
227.8750.0000.0000.000.000
238.2500.0000.0000.000.000
248.6250.0000.0000.000.000
259.0000.0000.0000.000.000
269.3750.0000.0000.000.000
279.7500.0000.0000.000.000
2810.1250.0000.0000.000.000
2910.5000.0000.0000.000.000
3010.8750.0000.0000.000.000
3111.2500.0000.0000.000.000
3211.6250.0000.0000.000.000
3312.0000.0000.0000.000.000
3412.3890.0000.0000.000.000
3512.7780.0000.0000.000.000
3613.1670.0000.0000.000.000
3713.5560.0000.0000.000.000
3813.9440.0000.0000.000.000
3914.3330.0000.0000.000.000
4014.7220.0000.0000.000.000
4115.1110.0000.0000.000.000
4215.5000.0000.0000.000.000
4315.8890.0000.0000.000.000
4416.2780.0000.0000.000.000
4516.6670.0000.0000.000.000
4617.0560.0000.0000.000.000
4717.4440.0000.0000.000.000
4817.8330.0000.0000.000.000
4918.2220.0000.0000.000.000
5018.6110.0000.0000.000.000
5119.0000.0000.0000.000.000
(二)桩身配筋计算
点号距顶距离面侧纵筋背侧纵筋箍筋
(m)(mm2)(mm2)(mm2)
10.00043204320335
20.37543204320335
30.75043204320335
41.12543204320335
51.50043204320335
61.87543204320335
72.25043204320335
82.62543204320335
93.00043204320335
103.37543204320335
113.75043204320335
124.12543204320335
134.50043204320335
144.87543204320335
155.25043204320335
165.62543204320335
176.00043204320335
186.37543204320335
196.75043204320335
207.12543204320335
217.50043204320335
227.87543204320335
238.25043204320335
248.62543204320335
259.00043204320335
269.37543204320335
279.75043204320335
2810.12543204320335
2910.50043204320335
3010.87543204320335
3111.25043204320335
3211.62543204320335
3312.00043204320335
3412.38943204320335
3512.77843204320335
3613.16743204320335
3713.55643204320335
3813.94443204320335
3914.33343204320335
4014.72243204320335
4115.11143204320335
4215.50043204320335
4315.88943204320335
4416.27843204320335
4516.66743204320335
4617.05643204320335
4717.44443204320335
4817.83343204320335
4918.22243204320335
5018.61143204320335
5119.00043204320335
=====================================================================
第2种情况:
库仑土压力(一般情况)
[土压力计算]计算高度为12.000(m)处的库仑主动土压力
第1破裂角:
41.026(度)
Ea=748.952Ex=726.705Ey=181.188(kN)作用点高度Zy=4.039(m)
(一)桩身内力计算
计算方法:
K法
背侧--为挡土侧;面侧--为非挡土侧。
背侧最大弯矩=20361.369(kN-m)距离桩顶13.556(m)
面侧最大弯矩=0.000(kN-m)距离桩顶0.000(m)
最大剪力=5057.271(kN)距离桩顶18.611(m)
最大位移=126(mm)
点号距顶距离弯矩剪力位移土反力
(m)(kN-m)(kN)(mm)(kPa)
10.0000.0000.000-126.310.000
20.3750.539-4.309-122.830.000
30.7504.309-17.235-119.350.000
41.12514.542-38.780-115.870.000
51.50034.471-68.942-112.390.000
61.87567.326-107.722-108.910.000
72.250116.339-155.119-105.430.000
82.625184.742-211.134-101.950.000
93.000275.767-275.767-98.480.000
103.375392.645-349.018-95.000.000
113.750538.608-430.886-91.530.000
124.125716.887-521.372-88.060.000
134.500930.714-620.476-84.600.000
144.8751183.321-728.198-81.140.000
155.2501477.940-844.537-77.700.000
165.6251817.801-969.494-74.260.000
176.0002206.138-1103.069-70.840.000
186.3752646.180-1245.261-67.440.000
196.7503141.161-1396.071-64.050.000
207.1253694.311-1555.499-60.690.000
217.5004308.862-1723.545-57.360.000
227.8754988.047-1900.208-54.060.000
238.2505735.096-2085.490-50.800.000
248.6256553.241-2279.388-47.590.000
259.0007445.714-2481.905-44.420.000
269.3758415.747-2693.039-41.310.000
279.7509466.570-2912.791-38.270.000
2810.12510601.246-3139.790-35.300.000
2910.50011822.134-3372.554-32.410.000
3010.87513131.367-3610.968-29.610.000
3111.25014531.066-3855.034-26.910.000
3211.62516023.350-4104.751-24.320.000
3312.00017610.336-4360.120-21.85-889.979
3412.38919015.117-2947.096-19.44-1554.999
3512.77819902.523-1694.011-17.18-1374.292
3613.16720332.682-589.945-15.08-1206.642
3713.55620361.369376.397-13.15-1052.340
3813.94420039.9281216.445-11.39-911.408
3914.33319415.2461941.549-9.80-783.642
4014.72218529.8322562.800-8.36-668.633
4115.11117421.9573090.865-7.07-565.804
4215.50016125.8273535.852-5.93-474.427
4315.88914671.8483907.198-4.92-393.653
4416.27813086.8924213.565-4.03-322.528
4516.66711394.6354462.762-3.25-260.011
4617.0569615.8594661.678-2.56-204.987
4717.4447768.8824816.224-1.95-156.289
4817.8335869.9044931.292-1.41-112.702
4918.2223933.4385010.722-0.91-72.977
5018.6111972.6815057.271-0.45-35.840
5119.0000.0002536.3010.000.000
(二)桩身配筋计算
点号距顶距离面侧纵筋背侧纵筋箍筋
(m)(mm2)(mm2)(mm2)
10.00043204320335
20.37543204320335
30.75043204320335
41.12543204320335
51.50043204320335
61.87543204320335
72.25043204320335
82.62543204320335
93.00043204320335
103.37543204320335
113.75043204320335
124.12543204320335
134.50043204320335
144.87543204320335
155.25043204320335
165.62543204320335
176.00043204320335
186.37543204320335
196.75043205032335
207.12543205913335
217.50043206901335
227.87543208005335
238.25043209235335
248.625432010600335
259.000432012113335
269.375432013787335
279.750432015636335
2810.125432017678341
2910.500432019932439
3010.875432022419539
3111.250432025166641
3211.625432028207746
3312.000432031584853
3412.389432034713335
3512.778432036766335
3613.167432037784335
3713.556432037853335
3813.944432037089335
3914.333432035631335
4014.722432033616335
4115.111432031175335
4215.500432028421507
4315.889432025448663
4416.278432022333791
4516.667432019136896
4617.056432015902980
4717.4444320126671044
4817.833432094581093
4918.222432062961126
5018.611432043201146
5119.00043204320335
抗滑动桩验算
计算项目:
平昌东站后侧滑坡PX2
------------------------------------------------------------------------
原始条件:
墙身尺寸:
桩总长:
20.000(m)
嵌入深度:
6.800(m)
截面形状:
方桩
桩宽:
1.200(m)
桩高:
2.100(m)
桩间距:
5.000(m)
嵌入段土层数:
1
桩底支承条件:
铰接
计算方法:
K法
土层序号土层厚(m)重度(kN/m3)内摩擦角(度)土摩阻力(kPa)K(MN/m3)被动土压力调整系数
150.00024.50037.00500.0080.0001.000
桩前滑动土层厚:
0.000(m)
锚杆(索)参数:
锚杆道数:
0
锚杆号锚杆类型竖向间距水平刚度入射角锚固体水平预加筋浆强度
(m)(MN/m)(度)直径(mm)力(kN)fb(kPa)
物理参数:
桩混凝土强度等级:
C35
桩纵筋合力点到外皮距离:
35(mm)
桩纵筋级别:
HRB400
桩箍筋级别:
HPB300
桩箍筋间距:
200(mm)
场地环境:
一般地区
墙后填土内摩擦角:
28.000(度)
墙背与墙后填土摩擦角:
14.000(度)
墙后填土容重:
22.000(kN/m3)
横坡角以上填土的土摩阻力(kPa):
20.00
横坡角以下填土的土摩阻力(kPa):
270.00
坡线与滑坡推力:
坡面线段数:
7
折线序号水平投影长(m)竖向投影长(m)
112.8325.133
23.0000.000
325.00010.000
40.0001.500
59.5000.000
60.000-1.500
750.0000.000
地面横坡角度:
16.000(度)
墙顶标高:
0.000(m)
参数名称参数值
推力分布类型矩形
桩后剩余下滑力水平分力0.000(kN/m)
桩前剩余抗滑力水平分力0.000(kN/m)
钢筋混凝土配筋计算依据:
《混凝土结构设计规范》(GB50010-2010)
注意:
内力计算时,滑坡推力、库仑土压力分项(安全)系数=1.200
=====================================================================
第1种情况:
滑坡推力作用情况
[桩身所受推力计算]
假定荷载矩形分布:
桩后:
上部=0.000(kN/m)下部=0.000(kN/m)
桩前:
上部=0.000(kN/m)下部=0.000(kN/m)
桩前