建筑物荷载对南京河西新城地面沉降影响的数值模拟分析  

Numerical Simulation and Analysis to the Land Subsidence of Nanjing Hexi New City Induced by Building Load

作　　者：王庆[1] 李永泉[1] 曾宝庆 岳建平[2] 

机构地区：[1]南京市测绘勘察研究院有限公司,江苏南京210019 [2]河海大学地球科学与工程学院,江苏南京210098

出　　处：《城市勘测》2014年第5期153-156,共4页Urban Geotechnical Investigation & Surveying

摘　　要：基于土力学原理,采用有限元分析软件ANSYS建立了长江漫滩建筑物荷载的三维计算模型,探讨了漫滩典型地质条件下土体弹性模量、承台弹性模量及建筑荷载等因素对地面沉降的影响,并初步分析了普通单体建筑荷载对南京河西新城漫滩地面沉降的水平和深度影响范围的变化规律。结果表明,不同因素影响下的建筑物沉降变化趋势不完全相同,普通单体建筑荷载水平和深度影响范围也有不同的变化规律,对在长江漫滩典型地质地区建筑物荷载作用下的地面沉降规律得到初步的认识。Selecting the typical geological area of Yangtze River back-swamp as investigation subject,a three-di-mensional model of the building load was established by ANSYS finite element analysis software based on the principles of soil mechanics,the land subsidence induced by soil modulus,pile elastic modulus and the building load and the varia-tion of the level and depth of influence scope of the ordinary single building load was discussed.The results show that the change trend of the influence of different factors of building settlement and the variation of the level and depth of influ-ence scope of the ordinary single building load was different.A preliminary understanding of the land subsidence induced by building load in typical geological area of the Yangtze River back-swamp was obtained.

关 键 词：长江漫滩 地面沉降 有限元模型 建筑物荷载 弹性模量 沉降影响范围 

分 类 号：P642.26[天文地球—工程地质学] TU196.2[天文地球—地质矿产勘探]