Numerical simulation and construction technology optimization of collapsible loess subgrade deformation

Abstract

: It is extremely important to simulate and evaluate the deformation degree of road foundation under the condition of collapsible loess to solve the practical engineering problems and optimize the construction technology. In this paper, a municipal road is taken as the research object, which suffers from collapsible loess along the subgrade, and has the characteristics of thick loess foundation depth and large area, which is not suitable for large area replacement. Settlement characteristics of subgrade using finite element method. According to the settlement simulation results, revise the construction process, excavation and drainage measures, replacement and drying, etc. Through the improvement of the construction technology, the settlement of the subgrade is effectively reduced, and after the later observation of the project, the quality standard has reached the design requirements. This result is of great reference significance for the optimization of the construction technology of the same type of engineering.