土釘墻結(jié)構(gòu)計(jì)算書1二、三區(qū)（不含慧山段）土釘驗(yàn)算1.1驗(yàn)算簡(jiǎn)圖1.2驗(yàn)算條件1.2.1基本參數(shù)所依據(jù)的規(guī)程或方法：《建筑基坑支護(hù)技術(shù)規(guī)程》JGJ120-99基坑深度：5.500(m)基坑內(nèi)地下水深度：5.500(m)基坑外地下水深度：1.000(m)基坑側(cè)壁重要性系數(shù)：1.000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)：1.3001.2.2坡線參數(shù)坡線段數(shù)1序號(hào)水平投影(m)豎向投影(m)傾角(°)13.7005.50056.11.2.3土層參數(shù)土層層數(shù)2序號(hào)土類型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(m)(kN/m^3)(kN/m^3)(kPa)(度)(kPa)(kPa)1雜填土1.50018.019.00.023.020.020.02強(qiáng)風(fēng)化巖10.20022.023.030.028.0160.0160.01.2.4土釘參數(shù)土釘?shù)罃?shù)3序號(hào)水平間距(m)垂直間距(m)入射角度(度)鉆孔直徑(mm)長(zhǎng)度(m)12.0001.00015.0486.00022.0001.50015.0485.00032.0001.50015.0484.0001.2.5內(nèi)部穩(wěn)定驗(yàn)算條件考慮地下水作用的計(jì)算方法：總應(yīng)力法土釘拉力在滑面上產(chǎn)生的阻力的折減系數(shù)：0.5001.3.1局部抗拉計(jì)算1.3.1局部抗拉設(shè)計(jì)結(jié)果工況開挖深度破裂角土釘號(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)13.00048.3025.50049.313.7253.725(3)10.613.222.1272.127(3)0.00.035.50049.313.7253.725(3)10.613.222.1272.127(3)0.00.034.0854.085(4)42.252.81.3.2局部抗拉驗(yàn)算結(jié)果工況開挖深度破裂角土釘號(hào)土釘長(zhǎng)度受拉荷載標(biāo)準(zhǔn)值抗拔承載力設(shè)計(jì)值抗拉承載力設(shè)計(jì)值滿足系數(shù)(m)(度)(m)Tjk(kN)Tuj(kN)Tuj(kN)抗拔抗拉13.00048.3025.50049.316.00010.655.479.84.1976.04525.0000.053.379.8999.000999.00035.50049.316.00010.655.479.84.1976.04525.0000.053.379.8999.000999.00034.00046.151.279.80.8891.3851.4內(nèi)部穩(wěn)定計(jì)算1.4.1計(jì)算簡(jiǎn)圖1.4.1內(nèi)部穩(wěn)定設(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10.285-7.07313.49811.66021.677-13.00117.45118.77213.00031.685-15.89619.38122.24813.00020.00041.685-15.89619.38122.24813.00020.00030.0001.4.2內(nèi)部穩(wěn)定驗(yàn)算結(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)10.285-7.07313.49811.66023.860-13.00117.45118.77233.879-15.89619.38122.24843.879-15.89619.38122.2481.5外部穩(wěn)定計(jì)算參數(shù)所依據(jù)的規(guī)程：《建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范》(GB50007-2002)土釘墻計(jì)算寬度:6.000(m)墻后地面的傾角:0.0(度)墻背傾角:90.0(度)土與墻背的摩擦角:0.6(度)土與墻底的摩擦系數(shù):0.500墻趾距坡腳的距離:0.000(m)墻底地基承載力:250.0(kPa)抗水平滑動(dòng)安全系數(shù)：1.300抗傾覆安全系數(shù)：1.6001.6外部穩(wěn)定計(jì)算結(jié)果重力:572.0(kN)重心坐標(biāo):(3.654,3.926）超載:0.0(kN)超載作用點(diǎn)x坐標(biāo):0.000(m)土壓力:-48.2(kPa)土壓力作用點(diǎn)y坐標(biāo):2.652(m)基底平均壓力設(shè)計(jì)值95.2(kPa)<250.0基底邊緣最大壓力設(shè)計(jì)值153.4(kPa)<1.2*250.0抗滑安全系數(shù):5.388>1.300抗傾覆安全系數(shù):87.500>1.6002西南側(cè)慧山段土釘驗(yàn)算2.1驗(yàn)算簡(jiǎn)圖2.2驗(yàn)算條件2.2.1基本參數(shù)所依據(jù)的規(guī)程或方法：《建筑基坑支護(hù)技術(shù)規(guī)程》JGJ120-99基坑深度：5.500(m)基坑內(nèi)地下水深度：5.500(m)基坑外地下水深度：1.000(m)基坑側(cè)壁重要性系數(shù)：1.000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)：1.3002.2.2坡線參數(shù)坡線段數(shù)1序號(hào)水平投影(m)豎向投影(m)傾角(°)13.7005.50056.12.2.3土層參數(shù)]土層層數(shù)2序號(hào)土類型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(m)(kN/m^3)(kN/m^3)(kPa)(度)(kPa)(kPa)1雜填土1.50018.019.00.023.020.020.02強(qiáng)風(fēng)化巖10.20022.023.030.028.0160.0160.02.2.4超載參數(shù)超載數(shù)1序號(hào)超載類型超載值(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局部均布10.0001.5004.0002.100矩形10.0002.2.5土釘參數(shù)土釘?shù)罃?shù)4序號(hào)水平間距(m)垂直間距(m)入射角度(度)鉆孔直徑(mm)長(zhǎng)度(m)11.0001.50015.0486.00021.0001.50015.0485.00031.0001.50015.0484.00041.5001.50015.0803.0002.2.6內(nèi)部穩(wěn)定驗(yàn)算條件考慮地下水作用的計(jì)算方法：總應(yīng)力法土釘拉力在滑面上產(chǎn)生的阻力的折減系數(shù)：0.5002.3局部抗拉計(jì)算2.3.1局部抗拉設(shè)計(jì)結(jié)果工況開挖深度破裂角土釘號(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)13.00051.3025.50052.313.6293.629(3)9.612.022.2742.274(3)0.00.031.6741.674(3)1.62.135.50052.313.6293.629(3)9.612.022.2742.274(3)0.00.031.6741.674(3)1.62.142.5812.581(4)42.853.52.3.2局部抗拉驗(yàn)算結(jié)果工況開挖深度破裂角土釘號(hào)土釘長(zhǎng)度受拉荷載標(biāo)準(zhǔn)值抗拔承載力設(shè)計(jì)值抗拉承載力設(shè)計(jì)值滿足系數(shù)(m)(度)(m)Tjk(kN)Tuj(kN)Tuj(kN)抗拔抗拉13.00051.3025.50052.313.7259.613.779.81.1496.66922.1270.00.079.8999.000999.00034.3461.651.679.825.08138.76535.50052.313.7259.613.779.81.1496.66922.1270.00.079.8999.000999.00034.3461.651.679.825.08138.76543.00042.866.479.81.2421.4932.4內(nèi)部穩(wěn)定計(jì)算2.4.1計(jì)算簡(jiǎn)圖2.4.2內(nèi)部穩(wěn)定設(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10.288-11.52815.99516.15021.431-17.45619.94723.26711.00031.424-22.44823.27529.26411.00020.00030.00041.424-22.44823.27529.26411.00020.00030.00040.0002.4.3內(nèi)部穩(wěn)定驗(yàn)算結(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)10.288-11.52815.99516.15024.073-17.45619.94723.26734.054-22.44823.27529.26444.054-22.44823.27529.2642.5外