塔吊作用下邊坡穩(wěn)定性研究分析

個(gè)人采集整理-僅供參照一、8080四樁基礎(chǔ)塔吊作用下面坡穩(wěn)固性剖析1、依據(jù)塔吊樁基計(jì)算書，基本參數(shù)以下：1）塔吊參數(shù)：型號(hào):QT80A；自重(包含壓重):F1=630.60kN；最大起重荷載:F2=80.00kN；塔吊顛覆力距；2）樁基參數(shù)：樁型與工藝:大直徑灌輸樁(清底潔凈)樁基混凝土等級(jí)：C35；保護(hù)層厚度：50mm；樁直徑：d=0.800m；樁間距：a=2.500m；樁入土深度：12.00m；樁鋼筋級(jí)別：Ⅱ級(jí)（3）承臺(tái)參數(shù)：矩形承臺(tái)幾何尺寸：；承臺(tái)厚度：Hc=1.500m；承臺(tái)混凝土等級(jí)：C35；承臺(tái)箍筋間距：S=150mm；承臺(tái)鋼筋級(jí)別：Ⅱ級(jí)；承臺(tái)預(yù)埋件埋深：h=1.00m承臺(tái)頂面埋深：D=0.000m可見，塔吊和承臺(tái)大地最大豎向力為：F=F1+F2+4x4x1.5x25=1310.6kN2、一級(jí)平臺(tái)上擱置塔吊基坑地穩(wěn)固性計(jì)算過程以下（未考慮樁體地有益作用）：一級(jí)平臺(tái)加寬至4m，相應(yīng)地一級(jí)邊坡線向后調(diào)整[設(shè)計(jì)簡(jiǎn)圖]----------------------------------------------------------------------b5E2R。[設(shè)計(jì)條件]1/13個(gè)人采集整理-僅供參照----------------------------------------------------------------------p1Ean。[基本參數(shù)]所依照地規(guī)程或方法：《建筑基坑支護(hù)技術(shù)規(guī)程》JGJ120-99基坑深度：18.100(m)基坑內(nèi)陸下水深度：19.100(m)基坑外處下水深度：19.100(m)基坑側(cè)壁重要性系數(shù)：1.100土釘荷載分項(xiàng)系數(shù)：1.250土釘抗拉抗力分項(xiàng)系數(shù)：1.300整體滑動(dòng)分項(xiàng)系數(shù)：1.300[坡線參數(shù)]坡線段數(shù)5序號(hào)水平投影(m)豎向投影(m)傾角(°)16.1006.10045.022.0000.0000.039.6006.00032.044.0000.0000.058.4006.00035.5[土層參數(shù)]土層層數(shù)6序號(hào)土種類土層厚容重飽和容重粘聚力內(nèi)摩擦角釘土摩阻力錨桿土摩阻力水土(m)(kN/m^3)(kN/m^3)(kPa)(度)(kPa)(kPa)DXDiT。1雜填土0.50018.018.014.014.025.025.0合算RTCrp。2粉土3.80018.317.015.021.035.035.0合算5PCzV。3粘性土1.40018.917.023.015.035.035.0合算jLBHr。4粉砂1.00018.518.03.023.035.035.0分算xHAQX。5細(xì)砂8.10019.618.03.025.050.050.0分算LDAYt。6細(xì)砂16.90020.020.03.026.065.065.0分算Zzz6Z。[超載參數(shù)]超載數(shù)2序號(hào)超載種類超載值(kN/m)作用深度(m)作用寬度(m)距坑邊線距離(m)形式長(zhǎng)度(m)2/13個(gè)人采集整理-僅供參照1滿布均布10.0002局部均布條形dvzfv。[土釘參數(shù)]土釘?shù)罃?shù)7序號(hào)水平間距(m)垂直間距(m)入射角度(度)鉆孔直徑(mm)11.0006.50015.010021.0001.20015.010031.0001.20015.010041.0003.60015.010051.0001.20015.010061.0001.20015.010071.0001.20015.0100[花管參數(shù)]基坑內(nèi)側(cè)花管排數(shù)0基坑內(nèi)側(cè)花管排數(shù)0[錨桿參數(shù)]錨桿道數(shù)0[坑內(nèi)土不加固]施工過程中局部抗拉知足系數(shù):1.000施工過程中內(nèi)部穩(wěn)固知足系數(shù):1.000[內(nèi)部穩(wěn)固設(shè)計(jì)條件]考慮地下水作用地計(jì)算方法：總應(yīng)力法土釘拉力在滑面上產(chǎn)生地阻力地折減系數(shù)：0.500圓弧滑動(dòng)坡底截止深度(m)：0.000(m)圓弧滑動(dòng)坡底滑面步長(zhǎng)(m)：1.000(m)----------------------------------------------------------------------[設(shè)計(jì)結(jié)果]----------------------------------------------------------------------[局部抗拉設(shè)計(jì)結(jié)果]工況開挖深度破碎角土釘號(hào)設(shè)計(jì)長(zhǎng)度最大長(zhǎng)度(工況)拉力標(biāo)準(zhǔn)值拉力設(shè)計(jì)值(m)(度)(m)(m)Tjk(kN)Tj(kN)0

rqyn1。Emxvx。SixE2。3/13個(gè)人采集整理-僅供參照28.20026.311.5621.562(2)8.712.0313.20033.610.8621.562(2)5.57.620.1270.127(3)1.11.5414.40033.710.8361.562(2)5.37.320.1220.127(3)1.11.530.5040.504(4)072.707(4)17.624.3515.60033.810.8081.562(2)5.17.020.1160.127(3)1.01.430.4800.504(4)4.25.842.6782.707(4)13.618.751.1151.115(5)3.75.1616.80034.010.7811.562(2)4.86.620.1110.127(3)1.01.330.4590.504(4)4.05.543.0703.070(6)13.418.551.5311.531(6)131.213(6)6.18.4718.00034.110.8661.562(2)4.66.420.3660.366(7)0.91.330.8080.808(7)3.95.343.4593.459(7)391.939(7)3.65.061.6251.625(7)6.08.271.4071.407(7)8.411.5818.10034.110.8861.562(2)4.66.420.3980.398(8)0.91.330.8390.839(8)3.95.343.4913.491(8)731.973(8)3.65.061.6591.659(8)6.08.272.5672.567(8)21.229.2[內(nèi)部穩(wěn)固設(shè)計(jì)結(jié)果]工況號(hào)安全系數(shù)圓心坐標(biāo)x(m)圓心坐標(biāo)y(m)半徑(m)土釘號(hào)土釘長(zhǎng)度10.62516.65312.4941.50021.43615.47213.7464.057110.06231.4328.81117.87911.800110.062210.39841.4393.79822.95219.252110.062

6ewMy。kavU4。y6v3A。M2ub6。0YujC。eUts8。sQsAE。GMsIa。TIrRG。7EqZc。lzq7I。zvpge。NrpoJ。1nowf。fjnFL。tfnNh。HbmVN。V7l4j。83lcP。mZkkl。AVktR。ORjBn。2MiJT。gIiSp。uEh0U。IAg9q。WwghW。asfps。ooeyY。BkeGu。PgdO0。3cdXw。4/13個(gè)人采集整理-僅供參照10.3986.8396.49110.06210.3988.8398.4918.47310.06210.3988.8398.4918.4738.15910.06210.3988.8398.4918.4738.1592.5679.24910.06210.3988.8398.4918.4738.1592.567[土釘選筋計(jì)算結(jié)果]土釘號(hào)土釘拉力(抗拉)土釘拉力(穩(wěn)固)計(jì)算鋼筋面積配筋配筋面積112.0131.8690.21d32804.221.5124.4651.71d3280393.11d25490.9424.3115.7605.91d28615.855.1128.2671.51d32804.268.4131.4688.41d32804.2729.221.2138.91d14153.9

h8c52。v4bdy。J0bm4。XVauA。bR9C6。pN9LB。DJ8T7。5/13個(gè)人采集整理-僅供參照內(nèi)部穩(wěn)固性計(jì)算中第一個(gè)工況發(fā)生時(shí)（基坑開挖至第一級(jí)平臺(tái)下0.5m，且未施工土釘）塔吊基礎(chǔ)還沒有實(shí)行，此時(shí)不會(huì)發(fā)生基坑損壞.其余工況均知足1級(jí)邊坡地安全系數(shù)要求（>1.43）.QF81D。塔吊擱置在一級(jí)平臺(tái)上時(shí)，二級(jí)邊坡增添土釘，三級(jí)邊坡土釘加密，加長(zhǎng)，直徑增添，可知足基坑安全地要求.3、地面上擱置塔吊基坑地穩(wěn)固性計(jì)算過程以下（未考慮樁體地有益作用）：塔吊擱置于基坑邊線外10m處.[設(shè)計(jì)簡(jiǎn)圖]----------------------------------------------------------------------[設(shè)計(jì)條件]----------------------------------------------------------------------[基本參數(shù)]所依照地規(guī)程或方法：《建筑基坑支護(hù)技術(shù)規(guī)程》JGJ120-99基坑深度：15.500(m)基坑內(nèi)陸下水深度：16.500(m)基坑外處下水深度：16.500(m)基坑側(cè)壁重要性系數(shù)：1.100土釘荷載分項(xiàng)系數(shù)：1.250土釘抗拉抗力分項(xiàng)系數(shù)：1.300整體滑動(dòng)分項(xiàng)系數(shù)：1.300[坡線參數(shù)]坡線段數(shù)5序號(hào)水平投影(m)豎向投影(m)傾角(°)14.0004.00045.0

4B7a9。ix6iF。6/13個(gè)人采集整理-僅供參照21.5000.0000.033.6004.50051.341.5000.0000.054.2007.00059.0[土層參數(shù)]土層層數(shù)6序號(hào)土種類土層厚容重飽和容重粘聚力內(nèi)摩擦角釘土摩阻力錨桿土摩阻力水土(m)(kN/m^3)(kN/m^3)(kPa)(度)(kPa)(kPa)wt6qb。1雜填土0.50018.018.014.014.025.025.0合算Kp5zH。2粉土3.80018.317.015.021.035.035.0合算Yl4Hd。3粘性土1.40018.917.023.015.035.035.0合算ch4PJ。4粉砂1.00018.518.03.023.035.035.0分算qd3Yf。5細(xì)砂8.10019.618.03.025.050.050.0分算E836L。6細(xì)砂16.90020.020.03.026.065.065.0分算S42eh。[超載參數(shù)]超載數(shù)2序號(hào)超載種類超載值(kN/m)作用深度(m)作用寬度(m)距坑邊線距離(m)形式長(zhǎng)度(m)1滿布均布10.0002局部均布4.0008.100條形501nN。[土釘參數(shù)]土釘?shù)罃?shù)11序號(hào)水平間距(m)垂直間距(m)入射角度(度)鉆孔直徑(mm)11.5001.50015.012021.5001.50015.012031.5001.50015.012041.5001.50015.012051.5001.50015.012061.5001.20015.012071.5001.20015.012081.5001.20015.012091.5001.20015.0120101.5001.20015.01207/13個(gè)人采集整理-僅供參照120[花管參數(shù)]基坑內(nèi)側(cè)花管排數(shù)0基坑內(nèi)側(cè)花管排數(shù)0[錨桿參數(shù)]錨桿道數(shù)0[坑內(nèi)土不加固]施工過程中局部抗拉知足系數(shù):1.000施工過程中內(nèi)部穩(wěn)固知足系數(shù):1.000[內(nèi)部穩(wěn)固設(shè)計(jì)條件]考慮地下水作用地計(jì)算方法：總應(yīng)力法土釘拉力在滑面上產(chǎn)生地阻力地折減系數(shù)：0.500圓弧滑動(dòng)坡底截止深度(m)：0.000(m)圓弧滑動(dòng)坡底滑面步長(zhǎng)(m)：1.000(m)----------------------------------------------------------------------[設(shè)計(jì)結(jié)果]----------------------------------------------------------------------[局部抗拉設(shè)計(jì)結(jié)果]工況開挖深度破碎角土釘號(hào)設(shè)計(jì)長(zhǎng)度最大長(zhǎng)度(工況)拉力標(biāo)準(zhǔn)值拉力設(shè)計(jì)值(m)(度)(m)(m)Tjk(kN)Tj(kN)12.00039.1023.50039.512.0562.056(2)0039.211.7682.056(2)0.50.722.3852.385(3)10.414.346.50039.212.5012.501(4)0.50.723.1183.118(4)10.414.333.9603.960(4)22.030.358.00035.912.6232.623(5)0.50.623.0493.118(4)10.214.033.6953.960(4)21.529.545.0665.066(5)44.961.769.20036.213.0713.071(6)0.50.623.4923.492(6)10.013.834.1284.128(6)735.273(6)44.260.7

jW1vi。xS0DO。LOZMk。ZKZUQ。dGY2m。rCYbS。FyXjo。TuWrU。7qWAq。llVIW。yhUQs。MdUZY。09T7t。e5TfZ。s1Sov。GXRw1。UTREx。8/13個(gè)人采集整理-僅供參照51.7901.790(6)11.215.4710.40036.413.5163.516(7)0.50.623.9323.932(7)9.913.634.5614.561(7)20.928.745.5575.557(7)43.660.052.1962.196(7)951.495(7)8.211.3811.60033.413.9693.969(8)0.50.624.2224.222(8)9.813.534.6874.687(8)20.728.445.5185.557(7)43.259.451.9972.196(7)10.113.961.1741.495(7)961.296(8)13.718.8912.80033.614.3604.360(9)0.40.624.6114.611(9)9.713.335.0715.071(9)20.528.245.7765.776(9)42.858.952.4102.410(9)10.013.761.5951.595(9)8.011.071.4941.494(9)13.518.681.4761.476(9)15.621.41014.00033.714.7504.750(10)0.40.624.9994.999(10)9.613.335.4555.455(10)20.428.046.0356.035(10)42.558.552.8172.817(10)9.913.562.0102.010(10)7.910.871.9091.909(10)13.318.481.4731.476(9)15.321.090.8950.895(10)2.83.91115.20033.815.1335.133(11)0.40.625.3795.379(11)9.613.235.8325.832(11)20.227.846.2896.289(11)42.358.153.2163.216(11)9.813.462.4162.416(11)7.810.772.3142.314(11)13.218.281.8911.891(11)15.221.091.3141.314(11)2.73.7101.2471.247(11)6.69.11215.50033.815.2255.225(12)0.40.625.4715.471(12)9.613.135.9235.923(12)20.227.8

8PQN3。mLPVz。AHP35。NDOcB。1zOk7。fuNsD。tqMB9。HmMJF。ViLRa。9eK0G。naK8c。B6JgI。P2Ipe。3YIxK。gUHFg。uQHOM。IMGWi。WHF4O。aDFdk。ozElQ。CvDtm。QrDCR。4nCKn。ijCST。vfB1p。JbA9V。X7Ahr。b3zqX。pZyyt。DVyGZ。RQxPv。5MxX1。jIw5x。xEve2。KAvmy。Ywuu4。cstDA。qotL6。EksTC。Sgs28。6craE。k8qia。y3qrG。MZpzc。9/13個(gè)人采集整理-僅供參照46.3506.350(12)42.258.053.3133.313(12)9.713.462.5152.515(12)7.810.772.4132.413(12)911.991(12)15.220.991.4191.419(12)2.73.7101.3511.351(12)6.69.0111.2121.212(12)12.316.9[內(nèi)部穩(wěn)固設(shè)計(jì)結(jié)果]工況號(hào)安全系數(shù)圓心坐標(biāo)x(m)圓心坐標(biāo)y(m)半徑(m)土釘號(hào)土釘長(zhǎng)度12.09812.88117.8284.38721.80811.40717.5135.66215.22531.5999.67919.1468.90215.22525.47141.4419.63717.3808.47419.22528.97139.42351.4367.67818.52811.04519.22528.97139.42349.35061.4345.78319.33813.13019.22528.97139.42349.35058.81371.4423.21120.88016.09519.22528.97139.42349.35058.81369.01581.4393.19718.41414.59719.22529.47139.423

0VoHI。dRoQe。rNnYJ。FJn6f。TFmfL。7Blnh。lxlvN。ztkEj。10/13個(gè)人采集整理-僅供參照49.35059.31369.51579.41391.4371.11219.75017.12319.22529.47139.42349.35059.31369.51579.41388.491101.437-2.07823.16721.96019.72529.47139.42349.35059.81369.51579.41389.49199.419111.434-3.60423.18123.21119.72529.47139.42349.85059.81369.51579.91389.49199.919109.851121.440-4.05022.90523.26119.72529.47139.42349.85059.81369.51579.91389.49199.91911/13個(gè)人采集整理-僅供參照9.8512.212[土釘選筋計(jì)算結(jié)果]土釘號(hào)土釘拉力(抗拉)土釘拉力(穩(wěn)固)計(jì)算鋼筋面積配筋配筋面積111.285.1445.51d25490.9214.382.1430.11d25490.9330.392.7485.71d25490.9461.7133.6699.81d32804.2515.4118.6621.31d32804.2611.3128.3672.11d32804.2718.8134.5704.71d32804.2821.4132.4693.61d32804.293.9131.8690.31d32804.2109.1167.3876.21d361017.91116.922.2116.31d14153.9

NpjMP。1ljUl。fhi3R。scibn。G8hjT。U4gsp。80gAV。mWfIq。ASeRW。OOeZs。2Kd7Y。塔吊擱置在坡頂時(shí)，原設(shè)計(jì)圖紙土釘規(guī)格間距不變，可知足基坑安全地要求.版權(quán)聲明本文部分內(nèi)容，包含文字、圖片、以及設(shè)計(jì)等在網(wǎng)上采集整理.版權(quán)為個(gè)人全部Thisarticleincludessomeparts,includingtext,pictures,anddesign.Copyrightispersonalownership.

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