大直径超长混凝土灌注桩极限承载力预测
Ultimate Bearing Capacity Prediction of Super-long Large Diameter Bored Pile
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摘要: 对郑州市某32层高建筑物的3根大直径超长灌注桩进行了静载荷试验,利用桩的荷载-沉降数据建立GM(1,1)新陈代谢模型对桩的承载力进行了预测分析.结果表明,建立的GM(1,1)新陈代谢模型能及时补充桩顶位移新信息同时去掉老信息,极大地提高了预测精度Abstract: 3 super-long and large diameter bored piles of 32 stores height building in Zhengzhou were selected to carry on the satic experiment research.A GM(1,1) information renewal model is presented by using the load-settlement data of piles to predict the pile bearing capacity.The results show that the GM(1,1) information renewal model can timely add new information to pile top displacement and remove the old information,which greatly improve the prediction accuracy
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