Application of Vacuum Combined Surcharge Preloading Technology in Highway Engineering Projects
In this paper,in order to solve the problem of insufficient natural bearing capacity of soft foundation,the construction scheme of vacuum combined load preloading is proposed through comparative analysis,and the construction key points such as clay sealing wall,filter pipe layout,sealing film laying and vacuum pumping in vacuum preloading construction are analyzed,and the technical measures of filling and rolling in the construction of load preloading are emphatically discussed.According to the measured results of surface settlement,pore water pressure and soil physical and mechanical indexes,the construction effect of vacuum combined load preloading is judged.The practice shows that the effect of foundation consolidation is good,and the vacuum combined preload-ing technology can improve the state of soft foundation and consolidate the road foundation.
soft foundation reinforcementvacuum preloadingoverload preloadingconstruction technologyeffect evaluation
NETL
NSTL
万方数据
