一种岩石强度参数预测模型  

PREDICTION OF ROCK STRENGTH PARAMETERS BASED ON GENE EXPRESSION PROGRAMMING

作　　者：胡海军 HU Hai-jun(The 1lth Geological Brigade of Sichan,Dazhou 635006,China)

机构地区：[1]四川省第十一地质大队,达州635006

出　　处：《地质灾害与环境保护》2024年第2期118-122,共5页Journal of Geological Hazards and Environment Preservation

摘　　要：岩石抗剪强度主要指岩石抵抗剪切滑动的能力,是岩石力学与工程中非常重要的指标之一。基于基因表达式编程方法,建立了一个全新的用于石灰岩抗剪强度参数预测模型。利用收集到的221组石灰岩数据,选择单轴抗拉强度、单轴抗压强度和围压作为其输入参数。通过与其他模型的对比表明,本文建立的岩石强度GEP模型的预测结果较好,其决定性系数为0.994,可以为岩石抗剪强度参数的预测提供一定的参考和借鉴。The shear strength of rock mainly refers to the ability of rock to resist shear slide, which is one of the very important indexes in rock mechanics and engineering. Based on the gene expression programming(GEP)method, a new model for predicting shear strength parameters of limestone is proposed. Using 221 groups of limestone data collected, uniaxial tensile strength, uniaxial compressive strength and confining pressure were selected as input parameters. The comparison with other models shows that the proposed GEP model has better prediction results, and its coefficient of determination is 0.994,which can provide a certain reference for the prediction of rock shear strength parameters.

关 键 词：基因表达式编程 单轴抗拉强度 单轴抗压强度 围压 

分 类 号：TU45[建筑科学—岩土工程] TU459.2[建筑科学—土工工程]