基于有限元模拟的地下停车场空间受力变形研究

Research on Space Deformation of Underground Parking Lot Based on Finite Element Simulation

本研究在济南新东站张马屯片区建筑项目岩土工程勘察的基础上,基于有限元方法,模拟了地下停车场在水、土总压力作用下的应力分布和变形特征。结果表明,在水、土总压力作用下,地下停车场墙壁上部变形明显,且中央部分的变形最大,而墙壁底部的变形很小,但应力很大,这是因为地下停车场底部被固定。进一步的应力和变形随坐标的变化数据证明了上述结论,这预示着在地下停车场的设计和建造过程中,应对这些部位进行防护。

Based on the geotechnical engineering investigation of Zhangmatun area construction project of Xindong railway station in Ji'nan,the stress distribution and deformation characteristics of underground parking lot under the action of water and soil pressure are simulated by the finite element method.The results show that under the action of total water and soil pressure,the deformation of the upper part of the underground parking lot is obvious,and the deformation of the central part is the largest,while the deformation of the bottom is very small,but the stress is large,because the bottom of the underground parking lot is fixed.Furthermore,the data of stress and deformation changing with coordinates proves the above conclusion,which indicates that these parts should be protected during the design and construction of underground parking lot.