Research On The Differencial Settlement Of Oil Tank Foundation After Dynamic Compaction

Storage tanks are important equipments in the oil storage and transportation system. They all have very high requirements on ground and foundations. Dynamic compaction method is a way of reinforcing ground. The research on working properties of dynamic compaction ground and foundation is very important for storage tanks, it can make the design and construction more rational. The threat of storage tank mainly from differential settlement of foundation and the large deformation of the floor. With load growing from the large-scale growing and the increasingly complex technical requirements, foundation settlement and differential settlement increasingly stringent restrictions. Analysis and calculations on the settlement of domestic and foreign scholars have carried out relevant research, and its theory is introduced to design specification. There is no uniform standard about foundation settlement and deformation value to the present. Foundation settlement research is still a problem that is worth discussing.This thesis relies on petro-china torch-plan projects:two-dimensional finite element method in the analysis of large tanks ground settlement. Mainly on the use of dynamic compaction of the UAE’s oil tank project, analysising the deformation of floor. This article discusses the feasibility of model paramenters in-situ testing method for the calculation, and do the laboratory test to samples of the sandy soil from the United Arab Emirates to obtain a more complete and accurate model parameters. Established by two-dimensional finite element software, finite element models to simulate the settlement of the tank foundation in the loading process, discussed the impact of different finite element model parameters of oil tank settlement. It provides the basis for the adjustment of the simulation parameters in the project. A detailed analysis has carried out on the large oil tank foundation treatment field test. It provides a reference for parameter selection in the numerical simulation of large oil tanks. According to the research and analysis for a particular project, establishing corresponding foundation model and choosing rather exact design parameters to analysis and forecast the deformation and final settlement condition for oil tank in order to provide more exact design parameters for engineering designers, which can make it more exact for choosing construction proposal with lower cost, and provide reference for improved by dynamic compaction design and oil tank foundation design under similar foundation condition. Providing a more economic solution for the ground improvement of similar foundation.