Study On The Deformation Properties Of Embankment Of Overlapped In The Expressway Widening Project Of Guangyuan To Shanchuanjie

In recent years, as highway traffic has been increasing, it had showed the situation of saturation, and maked its service advantages have discounted. In order not to large increase the new construction land, the national are developing the original highway expansion to be accompanied by building some new highways, but also had got some achievements. But we have no comprehensively and system, further exploration for deformation behavior of the new and old embankment lap section. Therefore, it's necessary to study the new and old embankment deformation characteristics, processing measures of combining site, the key technical of the new and old pavement cohesion combine the actual engineering on highway reconstruction project. To seek the reasonable and scientific method of solution, provide scientific basis for the design and construction of the reconstruction project. And ensure the quality of the widening project.This article mainly relies on the expressway mbankment wide lap engineering of guangyuan to shanchuanjie. And combine with the foundation treatment used in construction craft, the different fill height and different geosynthetic materials were evaluated. In many factors, emphatically analyzed the influence of moisturefield in roadbed to subsidence, draw the conclusion to provide direction for practical construction.Simulated the different factors of influence deformation to conculd the law through the universal finite element software-ADINA. Draw conclusions that dynamic compaction method than rolled-onmethod method have better effect to low embankment settlement.Pave geocell than geogrids can reduce differences of high embankment settlement more effectively; the deformation of embankment internal especially its shoulders suffers the influence of humidity changes in stuffing is bigger.To provided valuable data for effective engineering measures in the construction site.