抗滑动桩验PX2PX3.docx
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抗滑动桩验PX2PX3.docx
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抗滑动桩验PX2PX3
抗滑动桩验算
计算项目:
竹源锦都C2-2抗滑桩
------------------------------------------------------------------------
原始条件:
墙身尺寸:
桩总长:
23.000(m)
嵌入深度:
15.200(m)
截面形状:
圆桩
桩径:
1.500(m)
桩间距:
3.000(m)
嵌入段土层数:
3
桩底支承条件:
铰接
计算方法:
M法
土层序号土层厚(m)重度(kN/m3)内摩擦角(度)土摩阻力(kPa)M(MN/m4)被动土压力调整系数
12.71024.50025.0067.000.0001.000
25.00024.50025.0067.0080.0001.000
350.00024.50015.0067.00150.0001.000
初始弹性系数A:
0.000(MN/m3)
初始弹性系数A1:
0.000(MN/m3)
桩前滑动土层厚:
5.000(m)
锚杆(索)参数:
锚杆道数:
2
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)
1锚索0.5000.50020.00150520.002400.00
2锚索3.0000.65020.00150520.002400.00
物理参数:
桩混凝土强度等级:
C40
桩纵筋合力点到外皮距离:
150(mm)
桩纵筋级别:
HRB400
桩箍筋级别:
HRB335
桩箍筋间距:
300(mm)
桩配筋形式:
纵筋非均匀配筋
桩拉区纵筋配筋范围:
120.000(度)
桩压区,拉区纵筋比:
0.500
挡土墙类型:
一般挡土墙
墙后填土内摩擦角:
35.000(度)
墙背与墙后填土摩擦角:
17.500(度)
墙后填土容重:
24.500(kN/m3)
横坡角以上填土的土摩阻力(kPa):
150.00
横坡角以下填土的土摩阻力(kPa):
150.00
坡线与滑坡推力:
坡面线段数:
6
折线序号水平投影长(m)竖向投影长(m)
11.1850.000
27.15312.497
33.9701.960
43.1053.760
51.7861.280
618.4500.000
地面横坡角度:
14.000(度)
墙顶标高:
10.000(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660.000(kN/m)
桩后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--2002》
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=253.846(kN/m)下部=253.846(kN/m)
桩前:
上部=0.000(kN/m)下部=0.000(kN/m)
桩前分布长度=5.000(m)
(一)桩身内力计算
计算方法:
m法
背侧——为挡土侧;面侧——为非挡土侧。
背侧最大弯矩=6724.731(kN-m)距离桩顶11.024(m)
面侧最大弯矩=331.851(kN-m)距离桩顶17.933(m)
最大剪力=1759.714(kN)距离桩顶13.327(m)
最大位移=49(mm)
第1道锚索水平拉力=543.439(kN)距离桩顶0.500(m)
第2道锚索水平拉力=541.300(kN)距离桩顶3.500(m)
点号距顶距离弯矩剪力位移土反力
(m)(kN-m)(kN)(mm)(kPa)
10.0000.0000.000-49.220.000
20.50038.077391.131-46.880.000
31.000-119.412238.823-44.540.000
41.500-200.74686.515-42.190.000
52.000-205.927-65.792-39.840.000
62.500-134.954-218.100-37.490.000
73.00012.173-370.408-35.130.000
83.500235.454-522.715-32.770.000
93.978261.342-126.954-30.520.000
104.456356.765-272.492-28.280.000
114.933521.723-418.031-26.050.000
125.411756.216-563.569-23.830.000
135.8891060.245-709.107-21.640.000
146.3671433.808-854.646-19.470.000
156.8441876.907-1000.185-17.350.000
167.3222389.540-1145.723-15.280.000
177.8002971.708-1291.261-13.280.000
188.2613566.471-1291.261-11.430.000
198.7214161.234-1291.261-9.670.000
209.1824755.997-1291.261-8.020.000
219.6425350.760-1291.261-6.500.000
2210.1035945.522-1291.261-5.110.000
2310.5646540.286-845.851-3.89-859.564
2411.0246724.731-22.018-2.83-730.288
2511.4856560.569654.239-1.95-574.769
2611.9456122.0381165.070-1.24-411.044
2712.4065487.2921509.638-0.69-253.912
2812.8674731.3411700.508-0.28-114.432
2913.3273920.7641759.7140.000.174
3013.7883110.2711714.9170.1886.276
3114.2482340.9611595.9130.28143.382
3214.7091640.0971431.6890.31173.542
3315.1701022.0731248.1060.31180.742
3415.630490.327988.9450.27319.391
3516.091111.044679.2550.22278.255
3616.552-135.412418.0270.17225.869
3717.012-274.048212.5820.12170.604
3817.473-331.24562.7470.08118.552
3917.933-331.851-36.8120.0573.579
4018.394-297.333-94.4300.0237.613
4118.855-244.861-119.6460.0111.050
4219.315-187.114-121.851-0.00-6.793
4319.776-132.610-109.395-0.01-17.246
4420.236-86.338-89.102-0.01-21.915
4520.697-50.527-66.136-0.01-22.406
4621.158-25.412-44.100-0.01-20.120
4721.618-9.902-25.306-0.01-16.150
4822.079-2.100-11.113-0.01-11.240
4922.5390.335-2.280-0.00-5.805
5023.0000.0000.3640.000.000
(二)桩身配筋计算
点号距顶距离面侧纵筋背侧纵筋箍筋压区纵筋配筋范围砼受压区范围
(m)(mm2)(mm2)(mm2)(度)(度)
10.0001889377754226.553.0
20.5001889377754226.553.0
31.0003777188954226.553.0
41.5003777188954226.553.0
52.0003777188954226.553.0
62.5003777188954226.553.0
73.0001889377754226.553.0
83.5001889377754226.553.0
93.9781889377754226.553.0
104.4561889377754226.553.0
114.9331889377754226.553.0
125.4111889377754226.553.0
135.8891889377754226.553.0
146.3671889377754226.553.0
156.8442237447354228.156.2
167.3222840568054230.561.0
177.8003535707054232.965.9
188.2614228845754235.170.1
198.7214958991654237.174.2
209.18256431128654238.877.6
219.64263591271754240.581.0
2210.10370241404854242.083.9
2310.56477591551754243.587.0
2411.02479941598754244.087.9
2511.48577591551754243.587.0
2611.94572371447354242.484.9
2712.40664861297354240.881.6
2812.86755871117454238.777.4
2913.3274671934254236.372.6
3013.7883679735754233.466.8
3114.2482784556854230.360.6
3214.7091946389254226.853.6
3315.1701889377754226.553.0
3415.6301889377754226.553.0
3516.0911889377754226.553.0
3616.5523777188954226.553.0
3717.0123777188954226.553.0
3817.4733777188954226.553.0
3917.9333777188954226.553.0
4018.3943777188954226.553.0
4118.8553777188954226.553.0
4219.3153777188954226.553.0
4319.7763777188954226.553.0
4420.2363777188954226.553.0
4520.6973777188954226.553.0
4621.1583777188954226.553.0
4721.6183777188954226.553.0
4822.0793777188954226.553.0
4922.5391889377754226.553.0
5023.0001889377754226.553.0
=====================================================================
第2种情况:
库仑土压力(一般情况)
[土压力计算]计算高度为7.800(m)处的库仑主动土压力
第1破裂角:
40.690(度)
Ea=1016.621Ex=969.569Ey=305.704(kN)作用点高度Zy=3.070(m)
(一)桩身内力计算
计算方法:
m法
背侧——为挡土侧;面侧——为非挡土侧。
背侧最大弯矩=12086.160(kN-m)距离桩顶11.024(m)
面侧最大弯矩=724.341(kN-m)距离桩顶2.500(m)
最大剪力=3172.740(kN)距离桩顶13.327(m)
最大位移=85(mm)
第1道锚索水平拉力=560.685(kN)距离桩顶0.500(m)
第2道锚索水平拉力=557.615(kN)距离桩顶3.500(m)
点号距顶距离弯矩剪力位移土反力
(m)(kN-m)(kN)(mm)(kPa)
10.0000.0000.000-85.250.000
20.5000.476557.831-81.370.000
31.000-276.536549.266-77.490.000
41.500-530.100428.559-73.610.000
52.000-686.340195.322-69.700.000
62.500-724.341-44.401-65.780.000
73.000-640.858-290.610-61.830.000
83.500-432.650-543.304-57.870.000
93.978-380.593-233.211-54.070.000
104.456-208.860-486.656-50.250.000
114.93385.377-746.022-46.440.000
125.411504.949-1011.310-42.620.000
135.8891052.683-1282.520-38.820.000
146.3671731.411-1559.651-35.050.000
156.8442543.960-1842.705-31.320.000
167.3223493.161-2131.680-27.670.000
177.8004581.841-2426.577-24.120.000
188.2615743.625-2570.153-20.820.000
198.7216927.454-2570.153-17.670.000
209.1828111.281-2570.153-14.710.000
219.6429295.110-2570.153-11.950.000
2210.10310478.937-2570.153-9.440.000
2310.56411662.766-1744.682-7.21-1593.013
2411.02412086.160-214.421-5.27-1360.123
2511.48511860.2931048.757-3.66-1077.588
2611.94511120.0332010.507-2.35-778.421
2712.40610008.1882667.717-1.33-489.878
2812.8678662.5003042.028-0.57-232.477
2913.3277205.8343172.740-0.04-19.774
3013.7885739.7333109.7960.29141.246
3114.2484341.0532907.3920.48249.358
3214.7093061.4082618.5560.56308.044
3315.1701928.8102290.8410.55324.388
3415.630951.0571823.4580.49577.580
3516.091249.0171261.8190.41506.284
3616.552-211.346785.3000.31413.315
3717.012-474.411408.3790.23314.077
3817.473-587.549131.6980.15219.870
3917.933-595.732-53.7210.09137.955
4018.394-538.061-162.5440.0572.053
4118.855-445.995-211.8310.0123.062
4219.315-342.920-218.537-0.01-10.120
4319.776-244.676-197.845-0.02-29.813
4420.236-160.663-162.247-0.02-38.884
4520.697-95.212-121.257-0.02-40.220
4621.158-48.959-81.571-0.02-36.368
4721.618-20.067-47.528-0.01-29.329
4822.079-5.176-21.719-0.01-20.477
4922.539-0.059-5.619-0.00-10.595
5023.0000.000-0.0640.000.000
(二)桩身配筋计算
点号距顶距离面侧纵筋背侧纵筋箍筋压区纵筋配筋范围砼受压区范围
(m)(mm2)(mm2)(mm2)(度)(度)
10.0001889377754226.553.0
20.5001889377754226.553.0
31.0003777188954226.553.0
41.5003777188954226.553.0
52.0003777188954226.553.0
62.5003777188954226.553.0
73.0003777188954226.553.0
83.5003777188954226.553.0
93.9783777188954226.553.0
104.4563777188954226.553.0
114.9331889377754226.553.0
125.4111889377754226.553.0
135.8891889377754226.553.0
146.3672045409054227.254.5
156.8443015603054231.262.3
167.3224145829054234.869.6
177.80054231084554238.376.5
188.26168171363454241.583.1
198.72182361647254244.588.9
209.18296571931454247.194.2
219.642109912198254249.498.8
2210.103122622452454251.5102.9
2310.564132782655654253.0106.0
2411.024138172763554253.8107.7
2511.485135452709054253.4106.9
2611.945126342526754252.0104.1
2712.406119022380354250.9101.8
2812.867102512050376448.296.3
2913.32785701714185145.190.2
3013.78868171363480941.583.1
3114.24851591031967437.675.2
3214.7093642728454233.366.5
3315.1702282456354228.356.6
3415.6301889377754226.553.0
3516.0911889377754226.553.0
3616.5523777188954226.553.0
3717.0123777188954226.553.0
3817.4733777188954226.553.0
3917.9333777
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