Influence of Vibration on Interface Friction of Pile-Soil System
Based on the model of effective friction coefficient, the change tendency of effective friction coefficient under different harmonic forces and the method of improving its decrease rate have been studied. The model of vibratory piling machine has been taken as a research object for friction reduction, and the stress of soil particles and the situation of friction resistance on pile surface have been analyzed while sinking the pile. The effect on interface friction of pile-soil system under vibration, caused by the depth of pile sinking, pile structure parameters and vibration acceleration, has also been studied, so that an effective method of decreasing interface friction can be found. Thus, the sinking efficiency would be improved by being analyzed, evaluated and parameter optimized.
Chaohe Chen, Yong Huang and Guangfan Li
X. P. Li et al., "Influence of Vibration on Interface Friction of Pile-Soil System", Advanced Materials Research, Vols. 243-249, pp. 6079-6082, 2011