Simulation on load capacity of single pile changing with consolidation degree in vacuum preloading foundation
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    Abstract:

    The prediction of the load capacity of single pile in the costal reclamation area is significant,especially at the preliminary design stage for the reclamation project.In this paper,we study the variations of vertical and horizontal ultimate load capacity of single pile with different consolidation degree of soil.Based on one reclamation project dealing with soft soil foundation under sluice,we analyze the relations of shear strength indexes and compression modulus of soft soil with consolidation degree,and use the geotechnical professional finite element software MIDASGTS NX to establish the soil-pile interaction model.Through the reasonable values of compression modulus,shear strength indexes and soil-pile interaction parameters,the vertical and horizontal load capacity of single pile can be predicted effectively under different consolidation degree.The results show that at consolidation degree of 80%,the vertical and horizontal load capacity of single pile are respectively about 1.8 times and 1.7 times higher than that at original state without consolidation.The load capacity of single pile is greatly increased with the consolidation of the soil around the pile.

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王华庆,苏静波,罗 颖.预压固结地基单桩承载力随固结度变化的模拟*[J].水运工程,2018,(2):169-174

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  • Online: February 09,2018
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