Application Of Dynamic Compaction Replac Ement For Caofeidian Ore Terminal Yard

Caofeidian belongs to Tangshan, Hebei Province. It is located in the southern coast of Tangshan, which is the center of the Bohai Bay. It connects north of China,northwest of China, northeast of China and faces to the Northeast Asia and the whole world. It is a bridgehead to connect in Northeast Asia. It is the core part of the Tangshan city to build an international shipping center, international trade center and international logistics center. It is the core of the state-level coastal strategy in Heibei province. It is also the core part of the national strategy that is coordinating development of Beijing, Tianjin and Heibei. In recent years, a large scale coastal reclamation is completed in Caofeidian, and the main technical method to deal with the coastal reclamation is dynamic compaction replacement method. So the research topic of construction parameters of dynamic compaction replacement method can make a contribution to solving practical engineering problems. This paper has studied the dynamic compaction replacement method which is applied in ore stock dump of the third stage. And it has analyzed the construction parameters and depth of influence and so on. We hope this paper can supply some inference for the coming similar engineering.I have done a lot of work about the coastal reclamation in Caofeidian, which mainly is the designation and construction about dynamic compaction replacement method. So I am familiar with the dynamic compaction replacement method and get much engineering materials. This paper finds the construction parameters by designing, monitoring and testing the project of ore stock dump of the third stage. And it will offer some references for the next similar project. The content of the research is as follows:(1) According to the results of the in-situ test and field monitoring in the test area to calculate a reasonable distance of the tamping point, and find the relationship between the dynamic compaction energy and the distance of the tamping point.(2) To find the optimal tamping energy and internal of tamping by the reseals of monitoring the pore water pressure.(3) According to the effective impact depth figured out by the in-situ test and thebearing capacity of the foundation after dynamic compaction to evaluate the reinforcement effect of the dynamic compaction.(4) The conclusion is appropriate for the dynamic compaction project in Caofeidian because the experiment datum is greatly different from other in different places. But it is still can offer some references for other similar projects in Caofeidian.