Dynamic Consolidation Mechanism And Experiment Research Of Filling-up Soil

The paper is based on comprehensively analyzing and concluding dynamic consolidation technique and method of internal and external country. It specifically discusses developing conditions of dynamic consolidation practice and theory. By deeply analyzing soil's consolidation theory and shock wave theory, it discusses dynamic consolidation mechanism of filling-up soil and putting forward some opinions of reinforcing filling-up soil. By combining some projects practice and present code of our country nowadays, it specifically expounds design method of dynamic consolidation and various parameters affecting reinforcement effect. The paper arranges experiment data and carries on theory analysis ofHengQuan reservoir dam, meanwhile laboratory compression experiment of shocked soil is done, reinforcement effect and valid reinforcement depth of dynamic consolidation as well as affecting factors of filling-up soil settlement after tamping are discussed. It testifies if reasonable parameters and technological process are employed to high filling-up soil, valid reinforcement depth of 10~13m and affected depth of 17m can be attained using high energy dynamic compaction. Soil's condensation, collapse and uneven quality are all improved. So the reinforcement effect is satisfying. To dam filling-up soil, water content should be controlled to reduce or prevent collapse. From laboratory experiment result, it's about 16%, but it is only fit with filling-up soil, for other quality soil, more research is needed. As soil parameters' complexity, dynamic consolidation design and calculation still rely on experience and they are just in a condition of qualitative analysis, inspection of reinforcement quality and effect also need deep discussion. The paper researches dynamic consolidation mechanism, design and inspection, it may provide references for some projects of similar quality soil.