Pile Foundation Design and Construction of Deepwater Steel Trestle with Shallow Cover Layer
The combination of shallow cover layer and deepwater condition leads to a challenging and costly construction of steel trestle with high safety risks.Reasonable design plan and construction monitoring means are all crucial to the control of construction period and cost.The construction process of the above-mentioned steel trestle was affected by unfavorable hydrogeological factors,such as flood seasons,water storage by reservoir,bank slope erosion of the Yangtze River and gully erosion,which resulted in limited working time and restricted area,more difficulties in organizing the construction.In terms of steel trestle with shallow cover soil layer,the bearing capacity of steel pipe pile are designed and calculated under five working conditions classified subject to different vehicle loads.Meanwhile,reasonable construction process and monitoring techniques are studied to guarantee safe construction of steel pipe pile under shallow cover soil layer,reduce construction period and cost.