岩土力学2025，Vol.46Issue(5)：1419-1428,10.DOI:10.16285/j.rsm.2024.1443
部分测试数据缺失时特殊条件下的三维应力计算
Three-dimensional stress calculation under special conditions with part of test data missing
摘要
Abstract
The stress state is the fundamental for evaluating the soil strength and stability,playing a crucial role.However,during the stress testing,local damage and other uncertain factors may lead to partial sensor data missing,causing the existing three-dimensional stress calculation method to fail.To accurately restore the soil stress state during data missing,a three-dimensional stress calculation method was developed based on three-dimensional stress testing principles,incorporating axisymmetric and one-dimensional compression characteristics.The three-dimensional stress,principal stress,the first invariant of stress I1,the second in variant of stress J2 and stress Lode angle of a sandy soil foundation under one-dimensional compression conditions with different data missing were calculated and compared to results with complete data.The results show that the method is highly accurate;as the load increases,the relative error decreases and converges.The principal stresses,the first invariant of stress I1,the second invariant of stress J2 and the stress Lode angle align with one-dimensional compression response,suggesting that this calculation method supports advanced data mining.This study offers a novel approach and a practical method for fully utilizing the test data.关键词
三维应力测试/传感器数据缺失/转换矩阵/主应力Key words
three-dimensional stress testing/sensor data missing/transformation matrix/principal stress分类
土木建筑引用本文复制引用
李顺群,张春伟,周燕,张凯,李有兵,井乐炜,王英红..部分测试数据缺失时特殊条件下的三维应力计算[J].岩土力学,2025,46(5):1419-1428,10.基金项目
国家自然科学基金项目(No.52478354) （No.52478354）
甘肃省重点研发计划项目(No.23YFGA0038).This work was supported by the National Natural Science Foundation of China(52478354)and the Key Research and Development Program Project of Gansu Province(23YFGA0038). （No.23YFGA0038）
