Abstract: The load transfer mechanism and the bearing capacity of the pile arc analysed based on the in-situ test information of the foar piles instrameated with the gange elements. The resalts show that the load transfer behavior is significantly influenced by the stress-relief,softening with water of the bearing strata, disturbed in different degree and the slime thickness. Finally, the processing measurements adopting high-pressure grouting is proposed, which is an effective solving method to above problems.