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1、----------------------------------------------------------------------驗算項目:D-E-A段土釘墻----------------------------------------------------------------------[驗算簡圖]----------------------------------------------------------------------[驗算條件]---------------------------------------------
2、-------------------------[基本參數(shù)]所依據(jù)的規(guī)程或方法:《建筑基坑支護技術規(guī)程》JGJ120-99基坑深度:11.300(m)基坑內(nèi)地下水深度:20.000(m)基坑外地下水深度:20.000(m)基坑側(cè)壁重要性系數(shù):1.100土釘荷載分項系數(shù):1.250土釘抗拉抗力分項系數(shù):1.300整體滑動分項系數(shù):1.300[坡線參數(shù)]坡線段數(shù)3序號水平投影(m)豎向投影(m)傾角(°)12.2005.50068.220.8000.0000.032.3205.80068.2[土層參數(shù)]土層層數(shù)8序號土類型土層厚容重飽和容重粘聚力內(nèi)摩擦角釘土
3、摩阻力錨桿土摩阻力水土(m)(kN/m^3)(kN/m^3)(kPa)(度)(kPa)(kPa)1雜填土1.50015.020.08.010.020.020.0合算2素填土1.00018.018.018.016.020.020.0分算3中砂2.50020.518.00.030.060.060.0分算4稍密卵石0.60021.018.05.038.090.090.0分算5密實卵石2.60023.018.010.050.0150.0150.0分算6稍密卵石1.30021.018.05.038.090.090.0分算7中密卵石1.50022.018.05.045
4、.0120.0120.0分算8密實卵石6.00023.018.010.050.0150.0150.0分算[超載參數(shù)]超載數(shù)1序號超載類型超載值(kN/m)作用深度(m)作用寬度(m)距坑邊線距離(m)形式長度(m)1滿布均布10.000[土釘參數(shù)]土釘?shù)罃?shù)8序號水平間距(m)垂直間距(m)入射角度(度)鉆孔直徑(mm)長度(m)配筋11.4001.00020.0508.0001D1421.4001.40020.0508.0001D1831.4001.40020.0506.0001D2241.4001.40020.0505.0001D1451.4001.40
5、020.0505.0001D1261.4001.40020.0505.0001D1271.4001.40020.0505.0001D1681.4001.40020.0503.0001D14[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][內(nèi)部穩(wěn)定驗算條件]考慮地下水作用的計算方法:總應力法土釘拉力在滑面上產(chǎn)生的阻力的折減系數(shù):0.900*******************************************************************[驗算結(jié)果]********************
6、***********************************************[局部抗拉驗算結(jié)果]工況開挖深度破裂角土釘號土釘長度受拉荷載標準值抗拔承載力設計值抗拉承載力設計值滿足系數(shù)(m)(度)(m)Tjk(kN)Tuj(kN)Tuj(kN)抗拔抗拉11.50039.1022.90041.518.00010.734.346.22.3263.13434.30044.018.0003.632.946.26.5539.20328.0009.952.776.33.8875.63345.70045.818.0003.431.746.26.6919.
7、74828.0009.348.776.33.8065.96736.00029.351.7114.01.2832.83157.10048.518.0003.132.646.27.55710.70928.0008.550.876.34.3606.55536.00026.753.2114.01.4503.11045.00022.481.146.22.6321.50068.50050.018.0002.931.946.27.88611.42228.0007.948.376.34.4266.99136.00025.050.4114.01.4663.31745.000
8、21.076.446.22.6461.60055.0000.076