Grey correlation analysis of bearing capacity of rock-socketed pile in soft soil area

摘要

The bearing capacity of rock-socketed pile in soft soil area is affected by many kinds of uncertainty factors, which is a complex grey analysis program. The influencing factors of bearing capacity of rock-socketed in soft soil area are analyzed in some different kinds of grey correlation by grey system theory such as pile diameter, pile length, socket length, the length to diameter ratio, the socket length to diameter ratio, rock strength and rock coefficient of weathering. The grey correlation analysis is combined with the statistical data of 76 rock-socketed piles which have different kinds of features in soft soil area of Zhejiang province. The paper has get the corresponding ranking results of various factors and found out the corresponding influence advantage factors of bearing capacity of rock-socketed pile in soft soil area, which have reflected the bearing performance of rock-socketed pile in soft soil area in some degree. The results can provide important reference for the future theoretical research and design application of rock-socketed pile in soft soil area, and show that the grey correlation method is effective and reliable.