The Testion And Press Of Roadbase Of Soil Mixed With Sock In Mountain Region

The technique of roadbed compaction and test is an old as well as novel problem .Undoubtedly, as far as fine soil is concerned compaction theory engineering practice and standard ,criteria are already properly mature. But with the highway construction extending to mountainous areas, the situation that spall soil of different spall content as the main filling of roadbed appearing, phenomenon of road surface split occasionally occurring in some new project because of spall soil roadbed unhomogeneous settlement, in addition that a great deal of vibration compaction engines adopting ,a new problem of "the optimum process of mixture of soil and spall vibration compaction compaction criteria and mass control " turns into one of the problems needed to resolving inpendently in mountainous areas highway project today .To resolve the problem having value both in engineering practice and theory research ,the basic test which is the base of compaction standard need to research ,that is , research both on compaction characteristic mixture of spall and soil and on applying function with the content of spall range from 0 to 100% .In the process of constructing high rank roadbed , moxture of spall and soil filling roadbed are generally adopted .Roadbed fill of mixture of spall and soil belong to unhomogeneous filling .Compared with fine soil ,it is very different from size composing ,diameter size ^noisture content ,hole distribution ,compaction characteristic ,etc .So construction way and construction parameters of fine soil ,as well as compaction mass test way and evaluation criteria ,can not be applied mechanically.For this reason , in view of generally adopted roller compaction engine in construction field ,we bring forward the construction parameters in condition of regulated compaction degree in the process of construction of the Jing -Qin highway .By means of adopting the technique of Reilay assorted the determine of tested density of mixture of spall and soil in stroke and compaction ,by means of a great deal indoors test and field ,satisfying effect on roadbed compaction degree test is received .