Deposit Of Subgrade Construction Technology Research

As the economy to develop, highway infrastructure construction got boost, and mountainous highway in the terrain of the limit by, mostly built in a high canyon in. Especially in the "5.12wenchuan earthquake" in the area, due to the effects of the earthquake happened along the roads of lies, geological hazards, such as landslide, and these natural disasters in the large highway are buried, damaged roads, thus causing some road traffic, in this condition, the new highway or rebuild the will to a large accumulated bodies should avoid to give, but most of the terrain are narrow valley, among many, many highways inevitable in these accumulated bodies through on, of nature are different, and there is no after natural settlement, so are built in the roadbed has the quite big difficulty.This paper summarizes the research in many scholars, on the basis of sichuan provincial road on S303line yingxiu to wolong section after-disaster reconstruction project first contract section tunnel entrance south (K3+580～K3+780) accumulated bodies and the second contract section dish longshan tunnel entrance (K9+290～K9+410) are studied, through a large number of field investigation, the soil test, put forward concerning the roadbed are filling method, the roadbed construction technology and stained subgrade stability analysis.