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1、附件:計(jì)算書(shū)----------------------------------------------------------------------1-1剖面----------------------------------------------------------------------[驗(yàn)算簡(jiǎn)圖]----------------------------------------------------------------------[驗(yàn)算條件]--------------------------------------------------------------
2、--------[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:4.900(m)基坑內(nèi)地下水深度:5.000(m)基坑外地下水深度:1.100(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):1.300[坡線參數(shù)]坡線段數(shù)3序號(hào)水平投影(m)豎向投影(m)傾角(°)13.4003.40045.022.5000.0000.031.5001.50045.0[土層參數(shù)]土層層數(shù)4序號(hào)土類(lèi)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水土(m)(kN/m^3)(kN/m^3)(kPa
3、)(度)(kPa)(kPa)1素填土1.00018.020.010.015.016.016.0合算2粘性土1.00019.219.227.410.940.040.0合算3淤泥質(zhì)土12.10017.117.18.26.116.016.0合算4淤泥13.40016.616.67.95.513.013.0合算[超載參數(shù)]超載數(shù)1序號(hào)超載類(lèi)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滿布均布30.000[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)配筋11.4001.80010.020012.0001Φ48
4、×3.021.4001.00010.020012.0001Φ48×3.031.4000.90010.020012.0001Φ48×3.041.4000.90015.02009.0001Φ48×3.0[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)2序號(hào)橫向間距(m)縱向間距(m)入射角度(度)鉆孔直徑(mm)長(zhǎng)度(m)發(fā)揮系數(shù)抗拉力(kN)1-4.4000.45090.06008.7501.000100.020.4500.45090.06009.1501.000100.0[坑內(nèi)土不加固]21[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.
5、500*******************************************************************[驗(yàn)算結(jié)果]*******************************************************************[局部抗拉驗(yàn)算結(jié)果]工況開(kāi)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12.10028.8023.10027.8112.00020.186.087.03.5453.75634.00027.3112.0
6、008.080.787.08.0579.411212.00016.986.287.04.0794.46044.90026.9112.0008.275.387.07.3409.185212.00016.381.087.03.9854.639312.00022.486.087.03.0683.36054.90026.9112.0008.275.387.07.3409.185212.00016.381.087.03.9854.639312.00022.486.087.03.0683.36049.00024.468.187.02.2323.091[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(
7、m)圓心坐標(biāo)y(m)半徑(m)11.4046.0587.0833.20222.0363.54313.85712.18231.5663.42113.33612.68941.3633.32610.87211.36951.4033.6789.93610.595[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:10.000(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:10.0(度)土與墻