大型石油储罐地基沉降研究现状  

Present status of research on foundation settlement of large-scale oil storage tanks

作　　者：石磊 帅健[2] 王晓霖 许葵[2] 

机构地区：[1]中国石油化工股份有限公司大连石油化工研究院,辽宁大连116045 [2]中国石油大学(北京),北京102249

出　　处：《石油工程建设》2018年第1期12-18,共7页Petroleum Engineering Construction

基　　金：国家重点研发计划;油气管道及储运设施完整性评价技术研究(2016YFC0802105)

摘　　要：地基沉降是导致储油罐应力和变形过大的主要原因,大型储油罐作为石化行业重要的存储设备,其安全问题不容忽视。首先简要分析了国内外大型储油罐发展现状,总结了地基沉降的类型及危害;然后较为详细地对沉降储罐的理论研究和数值研究进行了梳理,并对比了美国、欧洲、我国的沉降控制标准;最后指出,大型储罐沉降研究目前主要以理论推导和有限元数值模拟为主,对储罐的载荷、边界条件和结构进行了一定的简化,模型过于理想化,存在较大局限性;在有限元模拟中,大多数研究中将加强圈、抗风圈进行等效刚度处理的做法是不合理的,与实际相差较大。Foundation settlement tends to cause excess stress and deformation in oil tank. This study analyzes the present developing status of large-scale oil storage tanks at home and abroad, summarizes the main types of foundation settlement and corresponding damages. In addition, theoretical and numerical research on foundation settlement of oil tank is reviewed. The settlement control standards of America, Europe and China are compared. It is pointed out that present researches on large-scale oil storage tank foundation settlement focus mainly on the aspects of theory and numerical simulation; The loads, boundary conditions and structures of tanks are simplified to a certain extent, the models are too idealistic and have limitations, In most FEM simulations, the equivalent stiffnesses of reinforcing ring and wind gird are treated unreasonably and have more discrepancy with real situation.

关 键 词：大型储罐 地基沉降 理论推导 数值模拟 沉降标准 

分 类 号：TE972[石油与天然气工程—石油机械设备]