挤扩支盘混凝土灌注桩单桩竖向承载力经验公式的探讨  

RESEARCH ON EMPIRICAL FORMULA FOR SINGLE PILE VERTICAL BEARING CAPACITY OF CAST-IN-PLACE CONCRETE PILES WITH BRANCHES AND PLATES

作　　者：王立建[1] 刘波[1] 顾晓鲁[2] 

机构地区：[1]中冶集团建筑研究总院,北京100088 [2]天津大学,天津300072

出　　处：《工业建筑》2004年第3期24-26,67,共4页Industrial Construction

摘　　要：挤扩支盘桩是从普通混凝土灌注桩衍生出来的一种新桩型。与普通混凝土灌注桩相比 ,它能够大幅度提高单桩承载力 ,具有明显的经济效益。通过对大量的挤扩支盘桩竖向承载力试桩资料的分析 ,提出了新的挤扩支盘桩竖向极限承载力经验公式 。An extruding pile with branches and plates is the one deriving from the ordinary cast-in-situ concrete piles, by which the bearing capacity of a single pile can be raised substantially with a remarkable economic benefit. A new empirical formula is proposed for vertical ultimate bearing capacity of the extruding pile with branches and plates by analysing a lot of test pile data of the extruding piles with branches and plates, whose applicability is also verified.

关 键 词：挤扩支盘桩 单桩 竖向承载力 混凝土灌注桩 

分 类 号：TU473.11[建筑科学—结构工程]