摘要
如何利用未达到破坏状态的试桩实测数据来预测长螺旋钻孔压灌混凝土桩单桩极限承载力是一个重要的工程问题,具有重要的现实意义。基于灰色系统预测模型,建立了预测长螺旋钻孔压灌混凝土桩单桩荷载-沉降关系的GM(1,1)灰色模型,介绍了运用灰色理论预测长螺旋钻孔压灌混凝土桩单桩极限承载力以及完整的荷载-沉降关系的方法。通过工程实例的分析计算,该模型能够满足工程的需要,具有良好的预测精度。
It is an important engineering problem for prodicting ultimate bearing capacity of single auger bored cast-with-pressure concrete pile with the pile in-situ load test data below ultimate load,it has great practical significance.According to gray system prediction model,GM（1,1） model of load-settlement relation for single pile of auger bored cast-with-pressure concrete pile is established.The prediction method of ultimate bearing capacity and the whole load-settlement curve are discussed in detail.The results of engineering cases prove that these model can meet the engineering requirment.And the prediction is reliable.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2010年第7期118-122,共5页
Journal of Central South University of Forestry & Technology
