摘要
Abstract
In order to improve the construction quality of large-diameter bored pile,this paper takes a construction project as an example to analyze the construction technology of large-diameter bored pile,and analyzes the deformation characteristics and bearing characteristics of large-diameter bored pile through the static load test.The results show that the settlement of bored pile increases with the increase of load.Af-ter unloading,the resilience of the four piles is 8.9,7.6,5.8 and 6.3 mm,respectively,and the resilience rates are 43.2%,34.5%,61.2%and 53.4%,respectively.At the same time,the longer the pile length and the larger the pile diameter,the greater the bearing capaci-ty of the pile;The axial force of pile decreases with the increase of pile depth.With the increase of the loading level,the axial force of the pile increases and the slope of the axial force-depth curve decreases.关键词
建筑工程/地基工程/钻孔灌注桩/桩基承载特性Key words
Construction engineering/Foundation engineering/Bored pile/Bearing characteristics of pile foundation分类
土木建筑
