Embankment caused by uneven settlement longitudinal vehicle dumpping mechanism and repair methods

• 1、Hohai university in geotechnical engineering science institute

Abstract：The vehicle bump at bridge head is a phenomenon unable to avoid in construction at transition zone from road to bridge,all the way is a problem for bridge engineering technic personnel. It is one common problem in the highway,which is result of the differential settlement of embankment by the structure with The abutment back, urgently how to reduce or eliminate the differential settlement of embankment has become an immediate solution to the issue, especially it is in the coastal areas and Riverside area. There are many causes of the vehicle bump at bridge head。The study of the writer Based on the practical engineering in zhejiang province found that uneven settlement of enterprise is the main reason vehicle dumpping in zhejiang area，and the uneven settlement of the bridge has two main reasons：Foundation settlement and the additional compression of the Backfill soil on the abutment back。I have a mechanism for their analysis, focusing on soil deformation from the time effect and the additional compression of the Backfill soil on the abutment back. compare with other methods ，the Pavement repair using Bump over in the construction process is simple ，easy and short construction period, the advantages of saving money, but you can not achieve \\\"permanent\\\" effect, it should take some new measures。According to practical engineering This paper have an actual engineering method, which is one gets flip-height of highway embankment on soft foundation, and it achieved good results.

Keywords： Vehicle dumpping mechanism repair the differential settlement