Model Test Study on vibration transferring of dynamic compaction of hydraulic filling foundation reinforcement

摘要

Dynamic compaction is a well known and effective method in ground improvement. The application of this method to structural engineering is often restricted because of its noise, vibration and construction environment. The objects of treatment by dynamic consolidation (namely the foundation soil) is very complex, and impossible to build the universal significance theories are appropriate for all kinds of the foundation soil. This paper discussed the transfer mechanism of dynamic vibration and the selection of harmfulness index, research vibration transferring of dynamic compaction for of hydraulic filling foundation by model test, the four ramming strike (1000 KN·m、 2343.75 KN·m 、 4687.5 KN·m、 9375 KN·m) under the action of the horizontal and vertical vibration acceleration was monitored. Use the test data obtained the horizontal and vertical vibration acceleration attenuation experience formula. The conclusions of dynamic compaction in hydraulic filling foundation application have important guiding significance.