灰土地基储油罐不均匀沉降特征与影响因素探讨  

The research of uneven settlement characteristics and influencing factors in lime-soil foundation oil tank

作　　者：惠冰 张立[2] 王倩 

机构地区：[1]山东正元建设工程有限责任公司,山东济南250101 [2]山东城市建设职业学院,山东济南250014

出　　处：《山西建筑》2015年第21期34-35,共2页Shanxi Architecture

基　　金：山东局青年科技基金资助项目

摘　　要：依托某一储油罐的工程实例,研究了油罐沉降、不均匀沉降变形规律及影响因素,根据场地工程地质条件与现场沉降监测数据可知:油罐基础相邻沉降观测点之间存在耦合形态,且相邻点的沉降差逐渐增大;对于充水预压试验期间,油罐荷载大小与沉降量呈现双曲线增长趋势,并最终稳定;其中地层的不均匀性、湿陷性黄土地层分布、充水预压速率是引起油罐产生倾斜的主要因素。Relying on examples of projects of a storage oilcan, settlement, uneven settlement deformation and influencing factors of oilcan are studied. According to engineering geological conditions of the site and on site settlement monitoring data： coupling form existences between the adjacent settlement observation point of the basis of oilcan, and the settlement difference between adjacent points increases gradually. During water-filled preloading test, the size of load for oilcan and the settlement present hyperbolic growth trend, and eventually stabilize. Nonuniformity of formation, loess stratigraphic distribution, rate of water-filled preloading are the main factor causing the oilcan tilt.

关 键 词：灰土地基 不均匀沉降 充水预压 耦合形态 

分 类 号：TU470[建筑科学—结构工程]