Analysis of Pore Water Stress in Vibroflotation Pile Construction in Deep Overburden Layer
The overburden of the headworks of the Yingliangbao Hydropower Station is thick and the geological conditions are complex,mostly composed of boulders(floats),blocks(pebbles)and gravels.The construction of vibro-crushed stone pile belongs to the super standard vibro-forming process,so it is difficult to accurately estimate the impact on the stratum during construction.The key point of this paper is how to carry on the fi-nite element analysis of pore water stress in the construction process of unconventional vibroflotation pile.In this paper,Abaqus finite element software is used to simulate the influence of vibroflotation pile on the forma-tion during construction,and the pore water pressure and displacement generated by the formation are analyzed emphatically.Through the analysis of the simulation results,it is concluded that the influence of vibroflotation pile construction on the stratum is within a reasonable range,which ensures the normal construction of vibro-flotation gravel pile and the overall construction safety.
Yingliangbao Hydropower ProjectDeep overburden layerVibroflotation pilePore water stressFinite element analysis
万方数据
维普
