Study On Dynamic Compaction In Roadbed Construction Of Arterial Road Engineering

Since its birth,dynamic compaction has been widely used in foundation treatment projects of various types and purposes all over the world because of its outstanding advantages,such as economic and feasible,remarkable effect,simple equipment,convenient construction,saving materials,easy quality control,wide application range and short construction period.First of all,this study is to fully understand the research and application status of dynamic compaction at home and abroad,the study of dynamic compaction,including the consolidation principle of dynamic compaction,dynamic compaction construction method,construction technology standards and classification of dynamic compaction machinery.Then,the paper studies the dynamic compaction treatment of highway engineering,including the effective reinforcement depth,the layout of tamping points,combination forms,tamping times,and systematically introduces the construction preparation,construction procedures,quality control,safety management and environmental protection of dynamic compaction of highway engineering.Next,through a highway engineering roadbed dynamic compaction construction technology for example,including the original ground dynamic compaction treatment,high fill full compaction reinforcement,embankment dynamic compaction;combined with the implementation process of highway engineering roadbed dynamic compaction construction management and control measures are studied to guide the follow-up roadbed filling construction.Finally,according to the dynamic compaction scheme,the construction of the test section is carried out.According to the construction of the test section and the test of compaction degree,it is verified that when the embankmen,t is filled with 1.1m slack thickness,if the surface compaction of each layer of the embankment is rolled to more than94%,and then every 4 m of the embankment can be reinforced by dynamic compaction according to 4000 KN m,the bottom compaction degree of each layer can meet the requirement.Design specification requirements,and the construction parameters are the best construction parameters of the construction process.In the process of construction,at least 7 times of rolling is carried out according to each virtual layer,and at least 5 hammers are required at each ramming point in the process of dynamic consolidation.The container port is becoming more and more important for the regional economic development because of the advantage of the containers in the transportation and the increase of the goods which is suitable to the containers.To achieve more economic benefit,the ports must be more attractive to compete for the supply of goods,and provide excellent service and efficiency.