Subgrade Reaction Matlock Method for Lateral Bearing Capacity of Rock-socketed Pile
Rock-socketed piles are commonly used in many structures such as offshore wind turbines and bridges,but the research about the lateral bearing characteristics of pile embedded in rock remains inadequate.Subgrade reaction Matlock method is a popular method to determine the lateral bearing capacity of piles.But the reasonable calculation method to determine the parameters of subgrade reaction method for weathered rock mass is still unavailable.The numerical models of rock socketed piles were constructed based on finite difference method and were verified by comparing with the in-situ test results.Numerical parametric analyses were carried out with the numerical model by taking account various factors that influence the rock-pile interaction such as mechanics parameters of rock and pile.A calculation formula was proposed to determine the proportional coefficient of the subgrade modulus in the m method.The method proposed was verified by full-scale lateral load tests of rock-socketed piles,and the computed pile responses were compared with the other method in the literature and were in good agreement with the experimental data.The results show that the proposed method is more convenient compared with the nonlinear p-y methods to determine the parameter and calculate the respond of piles.
万方数据
维普
