软土地基路堤设计计算书.docx
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软土地基路堤设计计算书.docx
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软土地基路堤设计计算书
理正软土地基路堤设计软件
计算项目:
简单软土地基路基设计1
计算时间:
2015-11-1715:
15:
10星期二
============================================================================
原始条件:
计算目标:
计算沉降、承载力和稳定
路堤设计高度:
3.600(m)
路堤设计顶宽:
14.000(m)
路堤边坡坡度:
1:
4.000
工后沉降基准期结束时间:
60(月)荷载施加级数:
1
序号起始时间(月)终止时间(月)填土高度(m)是否作稳定计算
10.0006.0003.600是
路堤土层数:
1超载个数:
0
层号层厚度(m)重度(kN/m3)内聚力(kPa)内摩擦角(度)
13.60018.00017.00030.000
地基土层数:
5地下水埋深:
1.000(m)
层号土层厚度重度饱和重度地基承载力快剪C快剪?
固结快剪竖向固结系水平固结系排水层
(m)(kN/m3)(kN/m3)(kPa)(kPa)(度)?
(度)数(cm2/s)数(cm2/s)
11.10018.40018.52060.0007.50024.0000.0000.015000.01500否
23.50017.50017.74050.00013.3008.9000.0000.008000.00800否
31.60018.40018.520100.0004.50026.3000.0000.015000.01500否
49.80018.80019.020180.00011.1009.1000.0000.015000.01500否
57.60018.40018.520160.0004.50026.3000.0000.015000.01500否
层号e(0)e(50)e(100)e(200)
10.8590.8240.8010.770
层号e(0)e(50)e(100)e(200)e(400)e(800)
21.1471.0911.0450.9770.8970.823
30.9290.8960.8680.8280.7760.720
40.8200.7880.7680.7390.6990.655
50.9290.8950.8680.8290.7750.716
承载力计算参数:
承载力验算公式:
p≤鉘[fa]
验算点距离中线距离:
0.000(m)
承载力抗力系数鉘:
1.00
承载力修正公式:
[fa]=[fa0]+?
2(h-h0)
基准深度h0:
0.000(m)
固结度计算参数:
地基土层底面:
不是排水层
固结度计算采用方法:
微分方程数值解法
多级加荷固结度修正时的荷载增量定义为“填土高*容重”
填土-时间-固结度输出位置距离中线距离:
0.000(m)
填土-时间-固结度输出位置深度:
0.000(m)
沉降计算参数:
地基总沉降计算方法:
经验系数法
主固结沉降计算方法:
e-p曲线法
沉降计算不考虑超载
沉降修正系数:
1.200
沉降计算的分层厚度:
0.500(m)
分层沉降输出点距中线距离:
0.000(m)
压缩层厚度判断应力比=15.000%
基底压力计算方法:
按多层土实际容重计算
计算时考虑弥补地基沉降引起的路堤增高量
工后基准期起算时间:
最后一级加载(路面施工)结束时
稳定计算参数:
稳定计算方法:
有效固结应力法
稳定计算不考虑超载
稳定计算不考虑地震力
稳定计算目标:
给定圆心、半径计算安全系数
圆心X坐标:
-2.000(m)
圆心Y坐标:
20.000(m)
半径:
35.000(m)
条分法的土条宽度:
1.000(m)
============================================================================
(一)各级加荷的沉降计算
第1级加荷,从0.0~6.0月
加载开始时,路基计算高度=0.000(m),沉降=0.000(m)
加载结束时,路基计算高度=3.767(m),沉降=0.167(m)
============================================================================
(二)路面竣工时及以后的沉降计算
基准期开始时刻:
最后一级加载(路面施工)结束时刻
考虑沉降影响后,路堤的实际计算高度为=3.767(m)
路面竣工时,地基沉降=0.167(m)
路面竣工后,基准期内的残余沉降=0.159(m)
基准期结束时,地基沉降=0.326(m)
最终地基总沉降=1.200*0.320=0.384(m)
路面竣工时,路基横断面各点的沉降(中线为原点)
坐标当时沉降两点间沉降与路堤中心
(m)(m)差(m)沉降差(m)
-29.9600.0000.0000.167
-27.8200.0000.0000.167
-25.6800.0000.0000.167
-23.5400.0000.0000.167
-21.4000.0000.0000.167
-19.2600.0340.0340.133
-17.1200.0610.0270.106
-14.9800.0850.0240.082
-12.8400.1080.0230.059
-10.7000.1290.0210.038
-8.5600.1480.0190.019
-6.4200.1610.0130.006
-4.2800.1650.0040.002
-2.1400.1670.0020.000
-0.0000.1670.0000.000
2.1400.167-0.0000.000
4.2800.165-0.0020.002
6.4200.161-0.0040.006
8.5600.148-0.0130.019
10.7000.129-0.0190.038
12.8400.108-0.0210.059
14.9800.085-0.0230.082
17.1200.061-0.0240.106
19.2600.034-0.0270.133
21.4000.000-0.0340.167
23.5400.000-0.0000.167
25.6800.0000.0000.167
27.8200.0000.0000.167
29.9600.0000.0000.167
路堤竣工时,由于地基沉降引起路堤填筑面积增量:
(1)由各点计算沉降梯形积分方法得腣=4.890(m2)
(2)按照《铁路路基手册》方法得膕=0.167(m)腣=4.771(m2)
按照《铁路路基手册》方法,路堤顶面单侧加宽量:
腤=0.434~0.521(m)
基准期结束时,路基横断面各点的沉降(中线为原点)
坐标当时沉降两点间沉降与路堤中心
(m)(m)差(m)沉降差(m)
-29.9600.0000.0000.326
-27.8200.0000.0000.326
-25.6800.0000.0000.326
-23.5400.0000.0000.326
-21.4000.0000.0000.326
-19.2600.0650.0650.261
-17.1200.1180.0530.208
-14.9800.1680.0500.158
-12.8400.2150.0470.111
-10.7000.2530.0380.073
-8.5600.2860.0330.040
-6.4200.3100.0230.017
-4.2800.3200.0100.006
-2.1400.3250.0050.001
-0.0000.3260.0010.000
2.1400.325-0.0010.001
4.2800.320-0.0050.006
6.4200.310-0.0100.017
8.5600.286-0.0230.040
10.7000.253-0.0330.073
12.8400.215-0.0380.111
14.9800.168-0.0470.158
17.1200.118-0.0500.208
19.2600.065-0.0530.261
21.4000.000-0.0650.326
23.5400.000-0.0000.326
25.6800.0000.0000.326
27.8200.0000.0000.326
29.9600.0000.0000.326
路基横断面各点的最终沉降(中线为原点)
坐标当时沉降两点间沉降与路堤中心
(m)(m)差(m)沉降差(m)
-29.9600.0000.0000.384
-27.8200.0000.0000.384
-25.6800.0000.0000.384
-23.5400.0000.0000.384
-21.4000.0000.0000.384
-19.2600.0740.0740.310
-17.1200.1380.0640.247
-14.9800.1990.0610.186
-12.8400.2550.0560.129
-10.7000.2990.0440.085
-8.5600.3370.0380.048
-6.4200.3630.0270.021
-4.2800.3760.0130.008
-2.1400.3820.0060.002
-0.0000.3840.0020.000
2.1400.382-0.0020.002
4.2800.376-0.0060.008
6.4200.363-0.0130.021
8.5600.337-0.0270.048
10.7000.299-0.0380.085
12.8400.255-0.0440.129
14.9800.199-0.0560.186
17.1200.138-0.0610.247
19.2600.074-0.0640.310
21.4000.000-0.0740.384
23.5400.000-0.0000.384
25.6800.000-0.0000.384
27.8200.000-0.0000.384
29.9600.000-0.0000.384
路面竣工时,距路基中线0.000(m)处各层的沉降
层底深层厚自重应力(kPa)附加应力全应力(kPa)固结度层最终层当前分层主固层累计主压缩模沉降经
(m)(m)(孔隙比)(kPa)(孔隙比)沉降mSc(m)沉降(m)结沉降(m)固结沉降(m)量(MPa)验系数
0.5000.5004.6(0.856)67.872.4(0.814)0.96440.01360.01320.01130.01132.991.367(1.067)
1.0000.50013.8(0.849)67.881.6(0.809)0.89320.01290.01180.01080.02213.141.357(1.057)
1.1000.10018.8(0.846)67.886.6(0.807)0.85050.00250.00220.00210.02423.241.351(1.051)
1.6000.50021.2(1.123)67.888.9(1.055)0.80780.01920.01620.01600.04032.111.400(1.100)
2.1000.50025.1(1.119)67.792.8(1.052)0.73650.01900.01490.01590.05612.131.400(1.100)
2.6000.50028.9(1.115)67.696.5(1.048)0.66530.01880.01360.01570.07182.151.400(1.100)
3.1000.50032.8(1.110)67.4100.2(1.045)0.61080.01860.01260.01550.08732.181.400(1.100)
3.6000.50036.7(1.106)67.2103.9(1.042)0.55650.01810.01140.01510.10242.231.400(1.100)
4.1000.50040.5(1.102)66.9107.5(1.040)0.50230.01760.01030.01470.11712.281.400(1.100)
4.6000.50044.4(1.097)66.6111.0(1.038)0.44810.01710.00920.01420.13132.341.400(1.100)
5.1000.50048.5(0.897)66.2114.7(0.862)0.39790.01100.00550.00920.14053.601.327(1.027)
5.6000.50052.7(0.894)65.8118.5(0.861)0.35940.01070.00500.00890.14953.681.321(1.021)
6.1000.50057.0(0.892)65.3122.3(0.859)0.32090.01050.00450.00870.15823.741.317(1.017)
6.2000.10059.5(0.891)65.0124.5(0.858)0.29790.00210.00090.00170.15993.781.314(1.014)
6.7000.50062.2(0.783)64.6126.9(0.760)0.27480.00770.00300.00640.16635.031.197(0.897)
7.2000.50066.7(0.781)64.1130.8(0.759)0.23630.00750.00270.00620.17265.131.187(0.887)
7.7000.50071.2(0.780)63.4134.7(0.758)0.20840.00730.00250.00610.17865.241.176(0.876)
8.2000.50075.8(0.778)62.8138.6(0.757)0.18430.00700.00230.00590.18455.351.165(0.865)
8.7000.50080.3(0.776)62.1142.4(0.756)0.16020.00680.00200.00570.19025.471.153(0.853)
9.2000.50084.8(0.774)61.4146.2(0.755)0.13600.00660.00180.00550.19575.591.141(0.841)
9.7000.50089.3(0.772)60.7150.0(0.753)0.11210.00640.00170.00530.20105.731.127(0.827)
10.2000.50093.8(0.770)60.0153.8(0.752)0.09860.00610.00150.00510.20615.871.113(0.813)
10.7000.50098.3(0.769)59.2157.5(0.751)0.08520.00590.00140.00490.21106.031.097(0.797)
11.2000.500102.8(0.767)58.5161.3(0.750)0.07170.00580.00130.00480.21586.091.091(0.791)
11.7000.500107.3(0.766)57.7165.1(0.749)0.05820.00570.00120.00470.22056.091.091(0.791)
12.2000.500111.8(0.765)57.0168.8(0.748)0.04680.00560.00120.00470.22526.081.092(0.792)
12.7000.500116.3(0.763)56.2172.6(0.747)0.04010.00550.00110.00460.22986.081.092(0.792)
13.2000.500120.9(0.762)55.5176.3(0.746)0.03340.00550.00110.00460.23446.081.092(0.792)
13.7000.500125.4(0.761)54.7180.1(0.745)0.02660.00540.00100.00450.23896.071.093(0.793)
14.2000.500129.9(0.759)53.9183.8(0.744)0.01990.00530.00100.00440.24346.071.093(0.793)
14.7000.500134.4(0.758)53.2187.6(0.743)0.01540.00530.00090.00440.24776.061.094(0.794)
15.2000.500138.9(0.757)52.5191.4(0.742)0.01260.00520.00090.00430.25216.061.094(0.794)
15.7000.500143.4(0.755)51.7195.1(0.740)0.00970.00510.00090.00430.25636.051.095(0.795)
16.0000.300147.0(0.754)51.1198.2(0.740)0.00740.00300.00050.00250.25896.051.095(0.795)
16.5000.500150.5(0.848)50.6201.1(0.829)0.00510.00640.00110.00530.26424.771.223(0.923)
17.0000.500154.8(0.847)49.9204.6(0.828)0.00320.00610.00100.00510.26934.871.213(0.913)
17.5000.500159.0(0.845)49.2208.2(0.827)0.00250.00590.00100.00490.27424.991.201(0.901)
18.0000.500163.3(0.843)48.5211.7(0.826)0.00170.00570.00100.00470.27905.111.189(0.889)
18.5000.500167.5(0.842)47.8215.3(0.825)0.00090.00550.00090.00460.28355.241.176(0.876)
19.0000.500171.8(0.840)47.1218.9(0.824)0.00020.00530.00090.00440.28795.381.162(0.862)
19.5000.500176.1(0.838)46.5222.5(0.823)0.00000.00500.00000.00420.29215.541.146(0.846)
20.0000.500180.3(0.837)45.8226.1(0.822)0.00000.00480.00000.00400.29615.711.129(0.829)
20.5000.500184.6(0.835)45.2229.8(0.821)0.00000.00460.00000.00380.29995.901.110(0.810)
21.0000.500188.8(0.833)44.5233.4(0.820)0.00000.00440.00000.00360.30366.111.089(0.789)
21.5000.500193.1(0.832)43.9237.0(0.819)0.00000.00420.00000.00350.30706.341.066(0.766)
22.0000.500197.4(0.830)43.3240.7(0.818)0.00000.00390.00000.00330.31036.601.040(0.740)
22.5000.500201.6(0.829)42.7244.4(0.817)0.00000.00380.00000.00320.31356.771.023(0.723)
23.0000.500205.9(0.827)42.2248.0(0.816)0.00000.00370.00000.00310.31666.771.023(0.723)
23.500
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