Measurement and Numerical Simulation Analysis of the Influence of Metro Deep Foundation Pit Excavation on Adjacent Buildings
Taking the city square station project of Shaoxing Metro Line 1as the research background,through on-site monitoring data,the horizontal displacement of the diaphragm wall,surface settlement,building settlement and other factors are discussed and analyzed.Using finite element analysis software,the corresponding numerical model is established to explore and analyze the horizontal displace-ment of the diaphragm wall under different working conditions.The deformation law of surface settlement and building settlement with foundation pit excavation is compared and analyzed.Finally,the simulation results are compared with the measured data to further ana-lyze and verify.The results show that the displacement data obtained by numerical simulation are in good agreement with the measured data.The maximum settlement of the surrounding surface is generated at the end of the standard section of the foundation pit and 8 m away from the foundation pit,rather than at the edge of the foundation pit,and the maximum settlement value reaches 22.75 mm.The maximum horizontal displacement of the wall generally occurs in the middle of the wall depth.
subway deep foundation pitadjacent buildingsfinite element analysisbuilding settlement
NETL
NSTL
万方数据
