摘要
通黄路立交是京津第二高速工程中较大规模的互通式立交,桩基数量较多,本文通过对直径1.5m钻孔灌注桩、直径1.2m钻孔灌注桩和直径1.2m旋挖扩底桩三种桩基在承载力、刚度、沉降及经济性方面的比较,确定了采用经济合理的直径1.2m旋挖扩底灌注桩为推荐桩型,并通过桩基承载力试验验证了这一结论。
Tonghuang road overpass is a larger scale interchange of Beijing-Tianjin second expressway engineering,with more piles.Adopted the ground-extending rotary drilling pile with diameter of 1.2m as recommended pile type by comparing of 1.5m diameter bored pile,1.2m diameter bored pile and 1.2m ground-extending rotary drilling pile with baring capacity,stiffness,settlement,economy.It is proved that the selection is right by the experiment on pile bearing capacity.
出处
《施工技术》
CAS
北大核心
2010年第S1期1-3,共3页
Construction Technology
关键词
旋挖扩底灌注桩
钻孔灌注桩
沉渣
沉降
ground-extending rotary drilling pile
bored pile
sediment
settlement
