Research on the Application of Gravel Pile in Soft Soil Foundation Treatment of Municipal Road
The soft soil foundation of a municipal road is taken as the research object,and the three-dimensional model of gravel pile is established by finite element software.The influence of elastic modulus,cohesion and replacement rate of gravel pile on different indicators of bulging deformation is analyzed,and the surface settlement and pore water pressure are obtained through field monitoring.The results show that the bulging deformation of gravel pile increases first and then decreases until it tends to be stable.When the loading amount is less than 100 kPa,the bulging deformation is small;when the loading amount exceeds 200 kPa,the bulging deformation of gravel pile increases significantly;increasing the cohesion of soft soil foundation can effectively control the bulging deformation,and can also make the peak position of bulging deformation gradually move down;the replacement rate of gravel pile should not be less than 0.25;the gravel pile treatment measures can effectively reinforce the soft soil foundation of the engineering.
gravel pilemunicipal roadsoft soil foundationdeformation law
NETL
NSTL
万方数据
