Research on Bored Bearing Characteristics in Xi’an

Autor: Lipeng Zhang, Yabin Shen, Duanduan Wang
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: MATEC Web of Conferences, Vol 22, p 05025 (2015)
Popis: To analyze the influence of different soil properties on pile foundation load-bearing characteris- tics, taking a section of railway in Xi'an and a bridge of Xi'an as test area, and by field static load test to study load transfer characteristics after the test piles under axial pressure, including the distribution of axial force, pile lateral friction, tip resistance traits, ultimate bearing capacity determine, and compare with the theory bearing capacity. Experimental results show that, adjacent soil properties change large, axial force and lateral friction mutation at the junction of corresponding soil layer. Silty clay in different parts is below ground, and its lateral friction plays much difference. Pile lateral friction plays an important role in bearing capacity, but the role of round gravel soil end bearing capacity to pile bearing capacity can't be ignored. Tests calculate pile bearing ca- pacity significantly larger than standardized formula calculation bearing capacity, which are respectively 55.35% and 119.1%. And give the similar project condition the suggested values of pile bearing capacity and soil friction, to provide reference for similar pile foundation design.
Databáze: OpenAIRE