獨(dú)基沉降計(jì)算

1、xx汽車站工程沉降計(jì)算書一一、設(shè)設(shè)計(jì)計(jì)依依據(jù)據(jù)：建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范GB50007-2011xx汽車站候車樓巖土工程勘察報(bào)告(2013-022)提供的巖土的物理力學(xué)參數(shù) 二二、計(jì)計(jì)算算條條件件選用1-5軸交D軸的基礎(chǔ)計(jì)算沉降：位置基礎(chǔ)埋深 fspkspk(KPa)基礎(chǔ)尺寸(mm)柱準(zhǔn)永久組合荷載(KN)基礎(chǔ)11交D軸-3.0003003.43.41842基礎(chǔ)22交D軸3.54.02505基礎(chǔ)33交D軸4.04.02459基礎(chǔ)44交D軸3.54.02308基礎(chǔ)55交D軸3.43.41995土層示意圖由建筑地基處理技術(shù)規(guī)范9.2.8-1=fspk/fak=300/140=2.14復(fù)合土層Es=*原

2、土層Es，見(jiàn)下表1層2層3層4層5層原土層Es6.456.573.339.419.78復(fù)合土層Es13.8014.067.1320.1420.93三三、沉沉降降計(jì)計(jì)算算基基礎(chǔ)礎(chǔ)底底面面附附加加壓壓力力及及沉沉降降計(jì)計(jì)算算深深度度基礎(chǔ)埋深（m）地基承載力（KPa）基礎(chǔ)尺寸bl（mm）基礎(chǔ)面積準(zhǔn)永久組合荷載(KN)基礎(chǔ)底面壓力p=(F+G)/A基礎(chǔ)底面以上土的加權(quán)容重基底附加壓力p0 0=p-d沉降計(jì)算深度Zn=b(2.5-0.4*lnb)基礎(chǔ)133003.43.411.561842164.5315.3118.56.8基礎(chǔ)23.54.013.602505184.1915.3138.37.0基礎(chǔ)34

3、.04.016.002459153.6915.3107.87.8基礎(chǔ)43.54.014.002308164.8615.3119.07.0基礎(chǔ)53.43.411.561995172.5815.3126.76.8地地基基沉沉降降計(jì)計(jì)算算由建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范5.3.7，2.0b4時(shí)Z=0.6m。基礎(chǔ)1Z(m)l1 1/b1 1Z/b1 1i ii iZi i（mm）i iZi i-i-1i-1Zi-1i-1(mm)Esisi(KPa)S=4p0 0(i iZi i-i-1i-1Zi-1i-1)/Esisi s=S(mm)Sn n/s01.000.00.25000.000.0141.60.90.22

4、99367.84367.841416012.312.34.22.50.1541647.22279.38713018.630.9(Sn/s)0.025深度滿足5.23.10.1340696.8049.58201401.232.17.44.40.1035765.9069.10209301.633.68.04.70.0984787.221.30209300.534.1基礎(chǔ)2Z(m)l1 1/b1 1Z/b1 1i ii iZi i（mm）i iZi i-i-1i-1Zi-1i-1(mm)Esisi(KPa)S=4p0 0(i iZi i-i-1i-1Zi-1i-1)/Esisi s=S(mm)Sn

5、n/s01.140.00.25000.000.0111.60.80.2364378.24378.241416014.814.84.22.10.1757737.94359.70713027.942.7(Sn/s)0.025深度滿足5.22.60.1559810.6872.74201402.044.77.43.70.1235913.90103.22209302.747.48.04.00.1167933.619.70209300.547.9基礎(chǔ)3Z(m)l1 1/b1 1Z/b1 1i ii iZi i（mm）i iZi i-i-1i-1Zi-1i-1(mm)Esisi(KPa)S=4p0 0(i

6、iZi i-i-1i-1Zi-1i-1)/Esisi s=S(mm)Sn n/s01.000.00.25000.000.0101.60.80.2346375.36375.361416011.411.44.22.10.1703715.26339.90713020.632.0(Sn/s)0.025深度滿足5.22.60.1503781.5666.30201401.433.47.43.70.1182874.6893.12209301.935.38.04.00.1114891.216.52209300.335.7基礎(chǔ)4Z(m)l1 1/b1 1Z/b1 1i ii iZi i（mm）i iZi i-i

7、-1i-1Zi-1i-1(mm)Esisi(KPa)S=4p0 0(i iZi i-i-1i-1Zi-1i-1)/Esisi s=S(mm)Sn n/s1.00(Sn/s)0.025深度滿足01.140.00.25000.000.0111.60.80.2364378.24378.241416012.712.74.22.10.1757737.94359.70713024.036.7(Sn/s)0.025深度滿足5.22.60.1559810.6872.74201401.738.47.43.70.1235913.90103.22209302.340.88.04.00.1167933.619.702

8、09300.441.2基礎(chǔ)5Z(m)l1 1/b1 1Z/b1 1i ii iZi i（mm）i iZi i-i-1i-1Zi-1i-1(mm)Esisi(KPa)S=4p0 0(i iZi i-i-1i-1Zi-1i-1)/Esisi s=S(mm)Sn n/s01.000.00.25000.000.0141.60.90.2299367.84367.841416013.213.24.22.50.1541647.22279.38713019.933.0(Sn/s)0.025深度滿足5.23.10.1340696.8049.58201401.234.37.44.40.1035765.9069.1

9、0209301.735.98.04.70.0984787.221.30209300.536.5四四、 結(jié)結(jié)論論依據(jù)建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范5.3.4，相鄰柱基的沉降差允許值為：=0.002l=0.002*8000=16 mm基礎(chǔ)1與基礎(chǔ)2沉降差：=7.9-1.5=6.4 mm 基礎(chǔ)2與基礎(chǔ)3沉降差：=13.5-7.9=5.6 mm 基礎(chǔ)1基礎(chǔ)2基礎(chǔ)3基礎(chǔ)4基礎(chǔ)5s(mm)18.826.419.622.720.0(mm)7.66.73.12.6相鄰基礎(chǔ)沉降差均小于=16 mm經(jīng)經(jīng)計(jì)計(jì)算算，相相鄰鄰柱柱基基礎(chǔ)礎(chǔ)的的沉沉降降滿滿足足規(guī)規(guī)范范要要求求。備注Zn取8.0Es ss=s ss(mm)1118.8按地基處理規(guī)范表9.2.8s s=0.55三三、沉沉降降計(jì)計(jì)算算基基礎(chǔ)礎(chǔ)底底面面附附加加壓壓力力及及沉沉降降計(jì)計(jì)算算深深度度地地基基沉沉降降計(jì)計(jì)算算基礎(chǔ)1Es ss=s ss(mm)1126.4按地基處理規(guī)范表9.2.8s s=0.55Es ss=s ss(mm)1119.6按地基處理規(guī)范表9.2.8s s=0.55Es ss=s ss(mm)基礎(chǔ)2基礎(chǔ)3基礎(chǔ)418.8按地基處理規(guī)范表9.2.8s s=0.551122.7按地基處理規(guī)范表9.2.8s s=0.55Es ss=s ss(mm)1120.0按地基處理規(guī)范表9.2.8s s=0.55基