摘要
嵌岩桩模型试验,需要在桩身贴片,而现浇桩贴片困难,所以采用预制桩的形式,这就需要解决预制桩与桩周岩面的接触面问题。试验采用不同类型胶凝材料填补桩岩界面缝隙,也选用了不同类型基岩,并进行推出试验探索其承载特性,并遴选出最优的填隙材料进行嵌岩桩模型试验。试验结果表明:高强度水泥砂浆能较好地模拟桩岩界面接触作用。
Rock-socketed pile model test, where the pile body is required to be affixed. The cast-in-place pile is difficult to be affixed, so precast piles are adopted, leaving the problem of the surface between the precast pile and the bedrock. Gelled materials of different types are applied to fill the pile-rock interface cracks, and different types of bedrocks are also adopted. The push-out test is done to explore its load-bearing characteristics, and the best filler materials for rock-socketed pile model test are selected. The results show that the high-strength cement mortar can better simulate pile-rock interface contact effects.
出处
《重庆建筑》
2016年第12期48-51,共4页
Chongqing Architecture
基金
重庆市城乡建设委员会资助项目(大直径嵌岩灌注桩成套关键技术研究
编号:城科字2014第(03)号)
关键词
嵌岩桩
推出试验
填隙材料
rock-socketed pile
push-out test
filler materials
