海上沉箱浮游稳定性验算书.docx

海上沉箱浮游稳定性验算书进行浮游稳定性计算，以保证沉箱拖航、安装时的安全。CXI型沉箱以沉箱仓格中心为计算圆点名称计算式体积Vi形心距体积矩XiYiViXiViYi整体13.95X12.05X12.32067.59906.15012715.74马腿1.85×0.35X2.675X23.4646.211.0521.4838.279前趾11.8×0.75×0.54.4256.40.2528.321.10611.8×0.75X0.2/20.8856.2750.5675.550.502后趾11.8X1.2X0.57.08-6.6250.25-46.911.7711.8×1.2X0.2/21.416-6.4250.567-9.10.802空腔1.075×10.85×12.3×2-286.928-0.056.1514.35-1764.61仓格(3.6×3.65-0.22×2)Xll.8X9-1386.97-0.056.469.35-8876.6透水孔×0.05X0.05X4.50.035-0.058.5-0.0020.30底角0.22×(3.45+3.4)X92.466-0.050.567-0.1231.40合计413.47182.922118.66由于沉箱前后趾、壁厚大小不同及马腿影响，重心不在中心上，需要加水调平不平衡力矩(对沉箱中心)ZMx=82.92kNm需要后三仓加水,加水深度t(3.6×3.65-0.22×2)×t-0.22X(3.45+3.4)×3×1.025X3.9=JMx×2.513.06×t-0. 274=17. 285t=l.35 mB加水后1.4m的浮游稳定性加水的重力及对沉箱底的重量距g=(3.6×3.65-0.22×2)×1.4-0.22X(3.45+3.4)×3×1.025=55.38ZIMy=g×1.2=66.46kNm沉箱总重量G=V×2.5+g=1089.06kN重心高度YC=(My+/My)/G=4.914m排水体积V=G/1.025=1062.495m3前后趾排水体积v=13.806m3沉箱吃水T=(V-v)A=7.244 m浮心高度Yw=E(V-v)×T2+vYv)V=3.579m重心到浮心距离a=Yc-Yw=l.336m定倾半径P=(I-i)V=l.628m定倾高度m=P-a=0.292>0.2满足浮游稳定要求CX2型沉箱以沉箱仓格中心为计算圆点名称计算式体积Vi形心距体积矩XiYiViXiViYi整体13.95×14.6×12.32505.1406.15015406.6马腿1.85×0.35X2.675×23.4647.47511.0525.894338.279前趾11.95X0.75X0.54.4817.6750.2534.39361.12011.95×0.75X0.2/20.8967.550.56676.766690.508后趾11.95X0.65X0.53.884-7.6250.25-29.6140.97111.95X0.65X0.2/20.777-7.5170.5667-5.83860.440空腔1.0×13.4×12.3×2-329.64-0.056.1516.482-2027.3仓格(3.65×4.5-0.22×2)Xll.8X9-1735.&-0.056.486.792-11109透水孔XO.05X0.05X4.50.0353-0.058.5-0.00180.30底角O.22×(3.45+4.3)X92.79-0.050.5667-0.13951.581合计455.99134.7352313.16A由于沉箱前后趾、壁厚大小不同及马腿影响，重心不在中心上,需要加水调平不平衡力矩(对沉箱中心)/Mx=134.735kNm需要后三仓加水,加水深度t(3.65×4.5-0.22×2)×L.22×(3.45+4.3)×3×1.025×4.75=ZM×2.516.35Xt-O.31=23.0612t=l.43mB加水后1.5m的浮游稳定性加水后的重力及对沉箱底的重量距g=(4.5×3.65-0.22×2)×1.5+0.22×(3.45+4.3×3×1.025=74.438ZIMy=gX1.25=93.048kNm沉箱总重量G=V×2.5÷g=1214.412kN重心高度YC=(My+/My)/G=4.84m排水体积V=G/1.025=1184.79m3前后趾排水v=10.038m3沉箱吃水T=(V-v)A=6.665m浮心高度Yw=(V-v)×T2+vYv)V=3.307m重心到浮心距离a=Yc-Yw=I.532m定倾半径P=(I-i)V=2.622m定倾高度m=P-a=l.09>0.2满足浮游稳定要求CX3型沉箱以沉箱仓格中心为计算圆点名称计算式体积Vi形心距体积矩XiYiViXiViYi整体19.95×12.05×12.32956.88906.15018184.87马腿0.35×2.675×1.85×35.1966.211.0532.2257.418前趾18.4X0.75X0.56.96.40.2544.161.72518.4×0.75X0.2/21.386.2750.5678.660.782后趾18.4X1.2X0.511.04-6.6250.25-73.142.7618.4×1.2X0.2/22.208-6.4250.567-14.191.2512空腔0.775X10.85X12.3X2-206.855-0.056.1510.34-1272.16仓格(3.6×3.65-0.22×2)×11.8×12-1849.296-0.056.492.46-11835.5(2.6×3.65-0.22×2)Xll.8X3-333.114-0.056.416.66-2131.93透水孔×0.05×0.05×7.90.062-0.058.5-0.0030.527底角0.22×(3.45+3.4)×123.288-0.050.567-0.1641.8630.22×(3.45+2.4)×30.702-0.050.567-0.0350.398合计598.4116.973012.01A由于沉箱前后趾、壁厚大小不同及马腿影响，重心不在中心上,需要加水调平不平衡力矩(对沉箱中心)ZlMx=I16.97kNm需要后四仓加水加水深度t(3.6×3.65-0.22×2)×t+0.22×(3.45÷3.4)X4X1.025义3.9二，MX2.513.06×t-0.274=18.288t=l.42mB加水后1.5m的浮游稳定性加水后的重力及对沉箱底的重量距g=(3.6×3.65-0.22×2)×1.5-0.22×(3.45+3.4)×4×1.025=79.196kNZMy=99.00kN沉箱总重量重心高度排水体积前后趾排水体积沉箱吃水浮心高度重心到浮心距离定倾半径定倾高度mG=V×2.5+g=1575.196kNYc=(My+JMy)G=4.843mV=G/1.025=1536.777m3v=21.528m3T=(V-v)A=6.777mYw=(V-v)×T2÷vYv)V=3.345ma=Yc-Yw=I.498mP=(I-i)V=1.732mm=P-a=0.234>0.2满足浮游稳定要求CX4型沉箱以沉箱仓格中心为计算圆点名称计算式体积Vi形心距体积矩XiYiViXiViYi整体19.95X14.6X12.33582.621O6.15O22033.12马腿1.85×0.35×2.675×35.1967.4511.0538.7157.418前趾18.4×0.75X0.56.97.6750.2552.961.72518.4×0.75×0.2/21.387.550.56710.4190.782后趾18.4×0.65X0.55.98-7.6250.25-45.61.49518.4X0.65X0.2/21.196-7.5170.567-8.990.678空腔O.775×13.7X12.3X2-261.19-0.056.1513.06-1606.32仓格(3.65×4.5-0.22×2)Xll.8X12-2314.5-0.056.4115.72-14812.5(2.4X4.5-0.22×2)×11.8×3-379.49-0.056.418.97-2428.72透水孔×0.05×0.05×7.90.062-0.058.5-0.00310.5271底角O.22×(3.45+4.3)X123.72-0.050.567-0.1862.108O.22×(2.2+4.3)×30.78-0.050.567-0.0390.442合计652.70195.033250.314A由于沉箱前后趾、壁厚大小不同及马腿影响，重心不在中心上,需要加水调平不平衡力矩(对沉箱中心)JMx=195.03kNm需要后四仓加水，加水深度t(3.65×4.5-0.22×2)×t-0.22×(3.45+4.3)×4×1.025×4.75=ZlMX2.516.35×t-0.31=25.03583t=1.51mB加水后1.5m的浮游稳定性加水后的重力及对沉箱底的重量距g=(3.65X4.5-0.22×2)×L5-0.22X(3.45÷4.3)×4×1. 025=99.25075kNZIMy=24.063kNm沉箱总重量G=V×2.5+g=173L013kN重心高度YC=(My+/My)/G=4.766m排水体积V=G/1.025=1688.793m3前后趾排水体积v=15.456m3沉箱吃水T=(V-v)A=6.198m浮心高度Yw=(V-v)×T2+vYv)V=3.073m重心到浮心距离a=Yc-Yw=I.693m定倾半径P=(I-i)V=2.801m定倾高度m=p-a=l.108>0.2满足浮游稳定要求D4型沉箱(不考虑钢套筒重量情况)以沉箱仓格中心为计算圆点名称计算式体积型心距体积矩ViXiZiYiViXiViZiViYi整体26.4×21×16.39036.720-0.158.150-1355.573649.27底孔×0.652×0.5×49-32.5030.21.550.25-6.501-50.38-8.13前后趾25.6×0.5×0.5×212.80-0.150.250-1.923.225.6×0.5×0.22.560-0.150.570-0.3841.45空腔0.45×20×16.3-146.7012.838.150-1881.4-1195.610.75×20×16.3-244.50-13.08.1503172.39-1992.68仓格(2.9X2.8-0.22×2)×15.8×48-6097.5-1.308.47926.80-51219.3(2.9×2.3-0.22×2)×15.8×8-832.988.9508.4-74550-6997底角0.2?X7+2.6)×4810.176-1.300.567-13.2305.76640.22×(2.7+2.1)X81.5368.9500.5713.74700.8704合计1709.58465.68-117.2312247.85A由于沉箱前后趾、壁厚大小不同的影响，重心不在中心上,需要加水调平不平衡力矩（对沉箱中心）ZlMX=465.68kNmJMz=-117.23kNm需要后八仓加水，加水深度t(2.9×2.8-0.22×2)×t-0.22X(2.7+2.6)×8×1.025×8.8=ZlMxX2.58.04×t-0.212=16.13t=2.03m右仓加水，加水深度3、t2(2.9×2.8-0.22×2)×(t1+t2)-O.22X(2.7+2.6)×5×1.025×10.85=-ZlMzX2.58.04×(t1+t2)-0.212=5.2711.3×4×tl=6.2×t2t=0.31mt2=0.37mB后八仓加水2.0m,左五仓加水0.4m的浮游稳定性加水后的重力及对沉箱底的重量距g=(2.9×2.8-0.22×2)×2.0-0.22X(2.7+2.6)×8×1.025=130.18kNg=(2.9×2.8-0.22×2)×0.4-0.22×(2.7+2.6)×5×1.025=15.40kNIMy=195.18kNmZlMy2=IO.785kNm沉箱总重量重心高度排水体积前后趾排水沉箱吃水浮心高度重心到浮心距离G=V×2.5÷g=4419.456kNYc=(My+JMy)G=6.975mV=G/1.025=4311.664m3v=15.36m,T=(V-v)A=8.077mYw=L(V-v)XT2+vYv)V=4.025ma-Yc-Yw=2.95m定倾半径P=（I-i）V=4.34定倾高度m=p-a=1.39>0.2满足浮游稳定要求HD4型沉箱（考虑钢套筒重量情况）以沉箱仓格中心为计算圆点心上,需要加水调平不平衡力矩（对沉箱中心）ZlMX=465.68 kN m名称计算式体积Vi型心距体积矩XiZiYiViXiViZiViYi整体26.4×21×16.39036.720-0.158.150-1355.573649.27×O.652×0.5X49-32.5030.21.550.25-6.501-50.38-8.126前后趾25.6×0.5×0.5×212.80-0.150.250-1.923.225.6X0.5X0.22.560-0.150.570-0.3841.451空腔0.45X20X16.3-146.7012.838.150-1881.4-1195.610.75×20×16.3-244.50-12.988.1503172.39-1992.68仓格(2.9×2.8-0.22×2)X15.8X48-6097.5-1.308.47926.80-51219.3(2.9×2.3-0.22×2)×15.8×8-832.988.9508.4-74550-6997底角0.22×(2.7÷2.6)X4810.176-1.300.57-13.2305.76640.22X7+2.1)义81.5369.000.5713.74700.8704合计1709.58465.68-117.2312247.85A由于沉箱前后趾、壁厚大小不同以及钢护筒重量影响，重心不在中ZMz=-117.23kNm钢护筒重量G'=×(1.5+0.752)×0.01×49×1×7.8×IoJ24752=24.752T需要后八仓加水，加水深度t(2.9×2.8-0.22×2)×t-0.22×(2.7+2.6)×8×1.025×8.8=IMx×2.5+G'×0.28.04×t-0.212=16.2t=2.04m左五仓加水，加水深度分别为匕、t2(2.9×2.8-0.22×2)×(tl+t2)-0.22X(2.7+2.6)×5×1.025×10.85=-G'XI.55+ZlMzX2.58.04×(tl+t2)-0.212=4.581.3×4×t=6.2×t2t=0.25mt2-0.30mB后八仓加水2.1m,左五仓加水0.3m的浮游稳定性加水后的重力及对沉箱底的重量距g=(2.9×2.8-0.22×2)X2.1-0.22×(2.7+2.6)×8×1.025=136.71kNg=(2.9×2.8-0.22×2)×0.3-0.22×(2.7+2.6)×5×1.025=11.28kNZMyl=211.90kNmJMyl=7.33kNm沉箱总重量G=V×2.5+g+G'=4446.68kN重心高度YC=(My+/My)G=6.98m排水体积V=G/1.025=4338.23m3前后趾排水v=15.36m3沉箱吃水T=(V-v)A=8.13m浮心高度Yw=(V-v)×T2+vYv)V=4.05m重心到浮心距离a=Yc-Yw=2.93m定倾半径P=(I-i)V=4.31m定倾高度m=p-a=1.38>0.2满足浮游稳定要求