特大吨位桥桩承载力试验研究  

Study on Bearing Capacity Test of Extra Large Tonnage Piles

作　　者：吉林[1] 王峻[2] 龚维民 戴国亮[3] 

机构地区：[1]河海大学土木学院,南京市210024 [2]江苏省长江公路大桥建设指挥部,镇江市212002 [3]东南大学土木工程学院

出　　处：《公路》2002年第8期34-39,共6页Highway

摘　　要：采用自平衡试桩法对润扬长江公路大桥特大吨位大直径基桩进行了足尺模型竖向承载力试验 ,同时在同一场地进行了 2根小直径模拟桩试验。将自平衡试桩结果转换成等效传统静载试桩曲线并进行分析研究 ,对模拟试桩效果进行了有意义的探索。A new static load testing method, the self balanced testing method, is adopted for large tonnage piles of Runyang Yangtze River Highway Bridge. At the same time, two small piles are tested for estimating the bearing capacity of extra large tonnage piles. The results of self balanced method are converted to the equivalent curves of static load test piles and the effect of large piles estimated by small piles is discussed. The application of two load cell technique to the large tonnage piles of Shiyezhou Viaduct is introduced finally.

关 键 词：特大吨位桥 承载力 自平衡试桩 静载试验 模拟试桩 公路桥 桩基 

分 类 号：U446.1[建筑科学—桥梁与隧道工程] U443.15[交通运输工程—道路与铁道工程]