济宁桥综合计算书剖析

虚无河2号桥墩基坑支护工程土钉墙支护设计计算书----------------------------------------------------------------------设计项目:----------------------------------------------------------------------坡线段数1mm角(°)土层层数5粘聚力内摩擦角钉土摩阻力水土--------------------------------------------------------------------------------------------------------------------------------------------J02345 超载数1土钉道数3锚杆道数0kNmmmm形式长度(m)m00:::法--------------------------------------------------------------------------------------------------------------------------------------------力标准值拉力设计值65.759.865.559.7223466.7664.6976.9125.2832238.448(2)4.697(3)8.448(2)5.283(4)xmym径(m)土钉号土钉长度2323522442323面积配筋配筋面积1D25490.92323混凝土强度等级:水平配筋:竖向配筋:荷载分项系数:kPaMkNmAs(mm^2)x(构造)y(构造)x3.627235.7(构造)y(构造)x6.830403.6y(构造)6x7.091420.0y.08.000(m)0.0(度)墙背倾角:90.0(度)10.0(度)0.3000.000(m)250.0(kPa)900.2(kN)4.585,3.216)超载:土压力:抗滑安全系数:抗倾覆安全系数:坡线段数1mm角(°)虚无河3号桥墩基坑支护工程土钉墙支护设计计算书----------------------------------------------------------------------设计项目:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------数4容重饱和容重粘聚力内摩擦角010.09.619.623.815.0419.426.315.818.718.726.015.8超载数1kNm(m)作用宽度(m)土钉道数5mm孔直径(mm)23452345水土算合算合算合算JGJ基坑内侧花管排数0m基坑内侧花管排数0锚杆道数0施工过程中内部稳定满足系数:法--------------------------------------------------------------------------------------------------------------------------------------------力标准值拉力设计值2234223234223234234556xmym径(m)土钉号土钉长度12323445566计算钢筋面积234524.085.7234524.085.7混凝土强度等级:水平配筋:竖向配筋:荷载分项系数:1121231234123459.500AsmmAsmmkNm虚无河3号桥墩基坑支护工程桩锚支护设计计算书 --------------------------------------------------------------------------------------------------------------------------------------------23456yxyxyxyxyxy10.000(m)0.0(度)墙背倾角:90.0(度)10.0(度)0.3000.000(m)380.0(kPa)0重力:重心坐标:超载:土压力:抗滑安全系数:抗倾覆安全系数:kPa--------------------------------------------------------------------------------------------------------------------------------------------桩直径(桩直径(m)1.000桩间距(m)1.200混凝土强度等级C30有无冠梁有01--------------------------------------------------------------------------------------------------------------------------------------------------------1-----------------------------------------------------------------------------------------------------------------------------------------------7否否--------------------------------------------------------------------------------------------------------------------------------------------234567------------------(kPa)---234567--------------------------------------------------------------------------------------------------------------------------------------------------------------支锚道数支锚道数21212122~4~--------------------------------------------------------------------------------------------------------------------------------------------序横向间距号(m)11.0001--------------------------------------------------------------------------------------------------------------------------------------------___弹性法土压力模型:__经典法土压力模型:______234567------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------__D00AsAsAsHRB5HRB5HPB5--------------------------------------------------------------------------------------------------------------------------------------------mm1mmmD0D00段选筋类型号1纵筋HRB335HPB--------------------------------------------------------------------------------------------------------------------------------------------PaPaPa1212--------------------------------------------------------------------------------------------------------------------------------------------__整体稳定安全系数K=1.866sXY--------------------------------------------------------------------------------------------------------------------------------------------抗倾覆安全系数:MMpK=sMa_M——被动土压力及支点力对桩底的弯矩,对于内支撑支点力由内支撑抗压力p_M——主动土压力对桩底的弯矩;a力(kN/m)_锚固力(kN/m)_1__1_锚杆__2_锚杆_K=__K=2.201>=1.200,满足规范要求。s--------------------------------------------------------------------------------------------------------------------------------------------Prandtl(普朗德尔)公式(K>=1.1~1.2)，注：安全系数取自《建筑基坑工程技术规范》YB9258-97(冶金部):s22=22=__KKKK=s__Nq=tan45o+__((15.000))2Nq=tan45+2e3.142tan15.000=3.941__=__K=2.981>=1.1,满足规范要求。sTerzaghi(太沙基)公式(K>=1.15~1.25)，注：安全系数取自《建筑基坑工程技术规范》YB9258-97(冶金部):stan2_Nq=e4(215.000)=4.446cos45+2_n_=__K=3.414>=1.15,满足规范要求。s[隆起量的计算]_i=1__n———从基坑顶面到基坑底面处的土层层数;ri—第i层土的重度(kN/m3)；上取土的天然重度(kN/m3)；地下水位以下取土的饱和重度(kN/m3);hii的厚度(m);q顶面的地面超载(kPa);D(墙)的嵌入长度(m);H开挖深度(m);c面处土层的粘聚力(kPa);r—桩(墙)顶面到底处各土层的加权平均重度(kN/m3);369.5_--------------------------------------------------------------------------------------------------------------------------------------------KKK1.5):D_性系数;0_γ'———土的有效重度(kN/m);3_γ———地下水重度(kN/m);w3h至基坑底的距离(m);D)入土深度(m);--------------------------------------------------------------------------------------------------------------------------------------------PPcz=P式中_P———基坑开挖面以下至承压水层顶板间覆盖土的自重压力(kN/m2);cz_P———承压水层的水头压力(kN/m2);wy_K———抗承压水头的稳定性安全系数，取1.5。yK=37.40/30.00=1.24>=1.05y虚无河4#桥墩基坑支护工程土钉墙支护设计计算书----------------------------------------------------------------------设计项目:----------------------------------------------------------------------土层层数6123456超载数1kNm(m)作用宽度(m)土钉道数3mm孔直径(mm)水土算合算合算合算合算----------------------------------------------------------------------12----------------------------------------------------------------------3J坑内侧花管排数0坑内侧花管排数0锚杆道数00施工过程中局部抗拉满足系数:施工过程中内部稳定满足系数:坡线段数1mm倾角(°)法----------------------------------------------------------------------水平配筋:竖向配筋:----------------------------------------------------------------------1234准值022231234kPa9.8yxyxyxykNmAsmm234xmymm号土钉长度GB021.5681.0987.7604.802土钉墙计算宽度:10.000(m)15.000墙后地面的倾角:0.0(度)1.4340.6129.5188.518墙背倾角:90.0(度)16.000土与墙背的摩擦角:10.0(度)26.500土与墙底的摩擦系数:0.3001.4400.6409.9589.978墙趾距坡脚的距离:0.000(m)16.000墙底地基承载力:380.0(kPa)1.3001.600计算钢筋面积076.2279.44.8396.2重力:重心坐标:超载:土压力:抗滑安全系数:抗倾覆安全系数:a虚无河4#桥墩基坑支护工程桩锚支护设计计算书----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------桩直径(桩直径(m)1.000桩间距(m)1.400混凝土强度等级C30有无冠梁有01--------------------------------------------------------------------------------------------------------------------------------------------------------1-----------------------------------------------------------------------------------------------------------------------------------------------6否否--------------------------------------------------------------------------------------------------------------------------------------------------23456------------------层号与锚固体摩粘聚力内摩擦角水土计算m值抗剪强度kPakPa(MN/m4)(kPa)23423456--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------11111号2~--------------------------------------------------------------------------------------------------------------------------------------------序横向间距号(m)11.0001--------------------------------------------------------------------------------------------------------------------------------------------___弹性法土压力模型:__经典法土压力模型:______1杂填土合算2粘性土合算3粘性土合算4粘性土合算5粘性土合算6粉土合算------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------__AsAsAsHRB5HRB5HPB5--------------------------------------------------------------------------------------------------------------------------------------------mm1mm或mm2/m)2]-1438]D0D00段选筋类型号1纵筋HRB335HPB--------------------------------------------------------------------------------------------------------------------------------------------PaPaPa11--------------------------------------------------------------------------------------------------------------------------------------------_)(()N_)(()N=tanq22K整体稳定安全系数K=1.956sX--------------------------------------------------------------------------------------------------------------------------------------------抗倾覆安全系数:MMp=sM_M——被动土压力及支点力对桩底的弯矩,对于内支撑支点力由内支撑抗压力p_M——主动土压力对桩底的弯矩;a力(kN/m)_锚固力(kN/m)227.3