Research on ultimate bearing capacity of existing anchor-cable piles based on the elastic foundation beam method restrained by lateral deformation
The existing anchor-cable piles on the west side of the landslide front of Minjiang Electrochemical Company in Aba Prefecture are taken as the research object,its ultimate bearing capacity is the key to study in comprehensive landslide control.In order to solve this problem,on the basis of the test results of the pile body and the results of the on-site pull-out test of the anchor cable,the calculation of the transverse deformation-constrained elastic foundation beam method is deduced when the pile anchorage section foundation horizontal resistance coefficient is trapezoidal distribution according to the principle of deformation coordination.And use this method to calculate the internal force of the existing prestressed anchor-cable piles in the 1-1'section.The ultimate bearing capacity of the anchor cable,the bearing capacity of the existing pile structure and the foundation strength of the anchoring section are jointly used as the limiting conditions.By using the inverse analysis method to continuously approach the limit value of the landslide thrust corresponding to the limit conditions,it is found that the strength of the foundation in the anchorage section of the project controls the ultimate bearing capacity of the existing anchor piles,and its ultimate bearing capacity is finally determined.The data and calculation methods used in this study can provide reference value for similar engineering research and analysis.
existing anchor pilebeam on elastic foundationlimitation factorback analysisultimate bearing capacity
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