全螺旋灌注桩单桩极限承载力的预测  

Prediction of single ultimate bearing capacity of screwed casting pile

作　　者：胡焕校[1] 刘静[2] 祝世平 

机构地区：[1]中南大学地学与环境工程学院,湖南长沙410083 [2]中南大学土木建筑学院,湖南长沙410083 [3]湖北中南勘察基础工程有限公司,湖北武汉430081

出　　处：《中南大学学报（自然科学版）》2007年第6期1239-1244,共6页Journal of Central South University:Science and Technology

基　　金：中国冶金地质总局计划资助项目(2002年)

摘　　要：根据6根全螺旋灌注桩的实测桩顶载荷-桩顶沉降(Q-s)曲线,用双曲线法预测全螺旋灌注桩的极限承载力。研究结果表明:在极限加载范围内,用双曲线法能较好地预测全螺旋灌注桩的单桩极限承载力,拟合曲线与实测的曲线比较吻合且预测的结果偏于安全,预测结果的偏差与地层情况关系不大。The ultimate bearing capacity of the single screwed pile was predicted based on the six piles with screws from four different sites by hyperbola method. The results show that the predicted curve is in good agreement with the field measurement curve below ultimate load, and tends to be safe. The deviation from prediction result to measured result is not closely connected with subterranean formation.

关 键 词：双曲线法 全螺旋灌注桩 单桩极限承载力 

分 类 号：TU473.1[建筑科学—结构工程]