摘要
以施工期监测结果为基础 ,在正交设计原理的基础上 ,选定反演参数与水平 ,采用二维显式差分法FLAC进行弹塑性位移反分析。按正交设计表进行多个方案的开挖与模拟计算 ,用正交设计的计算结果训练人工神经元网络、建立位移目标函数并获取最佳反演参数。最后将所得参数用于变形预测 ,其结果与现场监测吻合。
Based on the results obtained in construction and using the orthogonal principle, the anthors choose parameters and levels for back analysis, and make a back analysis of elastica plastic displacement using explicit two dimensional difference method FLAC. According to the orthogonal table, many schemes are made to simulate and calculate geotechnical excavation and the results obtained by orthogonal experiment are applied to train neural network and set up target functions of displacment, obtaining optimum parameters for back analysis. Finally, the parameters obtained are used to predict deformation due to excavation. The results consist well with the ones obtained by in situ field measurement.
出处
《矿冶工程》
CAS
CSCD
北大核心
2000年第4期23-26,共4页
Mining and Metallurgical Engineering
