Load Transfer Law and Influence Factors of Piles in Deep Loess Area

Abstract

This paper summarizes the characteristic of four kinds composite foundation - compacted concrete composite foundation, Lanzhou loess foundation, highway soft soil foundation, just - soft pile composite foundation. Based on load tests and pile stress analysis of the measured data, summarizes the four foundation pile load characteristics and load transfer mechanism. The factors that influence the pile load transfer law are those: the pile tip soil properties, Pile shaft stiffness and length to diameter ratio, cement mixing ratio, Soil types, Moisture content, Compactness, The use of mattress layer.