中南大学学报（自然科学版）2017，Vol.48Issue(3)：804-812,9.DOI:10.11817/j.issn.1672-7207.2017.03.031
深部开采初始地应力场非线性反演新方法
A new nonlinear inversion method of geostress field in deep mining
摘要
Abstract
Aiming at rock brittle-ductile transition and frequent underground pressure activity in deep Fankou mine, geostress measurement was carried out by using developed LUT over-coring system in deep level. Considering complex geological modeling, inversion load expression and nonlinear mapping between load factors and measured stress, the nonlinear loading words and load parameters searching program were compiled, and thus a new nonlinear inversion method of geostress field characterized by chaotic search theory was put forward. The new inversion method was applied in the Fankou mine. The results show that the inversed stress fits well with measured stress, and the average fitting accuracy exceeds 90%. The nonlinear chaotic method is reasonable and workable for geostress field inversion, which can lay an effective foundation for safe production in deep mining level.关键词
深部开采/初始地应力场/非线性载荷/混沌搜索/反演分析Key words
deep mining/in-situ geostress field/nonlinear load/chaotic search/inversion analysis分类
矿业与冶金引用本文复制引用
汪伟,罗周全,秦亚光,姚曙,颜克俊..深部开采初始地应力场非线性反演新方法[J].中南大学学报（自然科学版）,2017,48(3):804-812,9.基金项目
国家自然科学基金资助项目(51274250) （51274250）
中南大学研究生自主探索创新项目(2016zzts091) (Project(51274250) supported by the National Natural Science Foundation of China （2016zzts091）
Project(2016zzts091) supported by Independent Exploration and Innovation Foundation of CSU) （2016zzts091）
