Settlement calculation of foundation with long and super-long piles

The high-rise and super high-rise buildings get a chance to be constructed rapidly with the development of economy and society in China. As the popular application cases of foundation with long and super-long piles in the buildings, the study on settlement calculation for these types of pile foundations has become a focus problem in the design of buildings. The authors analyze the merits and faults of the present settlement calculation methods for the foundation with long and super-long piles and compare the calculated results on the basis of engineering cases by means of these settlement estimation methods. Meanwhile, the Mindlin mean stress settlement calculation method is introduced. Based on the comprehensive comparison and analysis of these results, furthermore, especially considering the influences of additional stress, compression layer thickness and rationality and reliability of the methods on the settlement calculation, some suggestions are put forward to optimize the settlement calculation for the foundation with long and super-long piles.