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附录B基础宽度:6.0m基础长度:10.0m基础厚度:0.8m基础埋深:1.5m附加应力:120KPa82-T-101天然地基沉降分析依据规范:1.《建筑地基基础设计规范》(GB50007-2008)5.3.5地基基础尺寸:2.《建筑地基基础设计规范理解与应用》2008永久组合基底附加应力Po:82-T-101天然地基沉降分析B-1土层深度压缩模量土层厚度(m)Esi(MPa)(m)13.73.663.727.92.504.2312.06.204.1419.58.007.5521.38.101.8625.410.004.1726.812.701.4829.613.902.81.0mZK-091ZK-091ZK-091ZK-091ZK-091ZK-091距基底深度土层中心处D1Zi(m)Zm(m)12.21.100.7326.44.302.13310.58.453.50418.014.256.00519.818.906.60623.921.857.97725.324.608.43828.126.709.370.03470地基变形计算参数:0.038650.045230.157760.091070.061040.04857平均附加应力系数αi0.249290.222690.979630.622160.288280.123890.074320.05665土层的物理力学参数引自《○○○地质勘察院-○○○○○岩土工程勘察报告》2009.093.《建筑抗震设计规范理解与应用》2008残积砂质粘性土⑤探勘孔号:附加应力系数计算:岩土编号0.03992岩土编号岩土名称粉质粘土③细砂①粉质粘土②粗砂④全风化花岗岩⑥散体状强风化花岗岩⑦*地下水位深度:碎裂状强风化花岗岩⑧中心附加应力系数αi82-T-101天然地基沉降分析B-2参数取值:Δz=0.80mEs=4.26Mpazn=10.70(地基变形计算深度)φs=1.05(按地区经验或表5.3.5确定)岩土厚度SiS'S=φs*S'hi(m)(mm)(mm)(mm)12.270.770.774.224.2125.4196.1205.934.122.9219.0229.940.20.4219.3230.350.00.0219.3230.360.00.0219.3230.370.00.0219.3230.380.00.0219.3230.3Σ=10.70m(地基变形计算深度)0.045230.039920.038650.034700.123890.091070.074320.061040.056650.04857沉降计算经验系数:天然地基基础沉降计算:0.288280.157760.979630.24929岩土编号中心附加应力系数平均附加应力系数0.622160.22269αiαi82-T-101天然地基沉降分析230.3mmB-3结论:地基最终变形量s=
本文标题:天然地基沉降计算
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