Subgrade Settlement Control Technology of Highway Widening Project under Soft Soil Condition
In view of the problems encountered in highway widening construction of soft soil subgrade,starting with soil analysis,this paper discusses the causes and influencing factors of subgrade and pavement settlement,as well as the advantages and disadvantages of different technical means to control subgrade settlement.Through the experimental research,it is proposed to use the cement mixing pile reinforcement method to control the subgrade settlement.Through the finite element method,the influence of different mixing pile parameters on the settlement effect is analyzed.The simulation results show that the length,spacing,modulus of mixing pile and the fill-ing rate of embankment will have an impact on the subgrade settlement.It is necessary to weigh the parameters,construction period and cost in the actual construction process,To ensure the best subgrade settlement control level.
NETL
NSTL
万方数据
维普
