基于卸荷应力的思山岭深部采区地应力场
反演方法研究

金属矿山 ›› 2025, Vol. 54 ›› Issue (7): 25-32.

基于卸荷应力的思山岭深部采区地应力场反演方法研究

崔　松¹ 　王晓南¹ 　丁　勇¹ 　刘　杨¹ 　关广学¹ 　宋建村¹ 　史述浩² 　金长宇²

1. 本溪龙新矿业有限公司,辽宁本溪 117013;2. 深部金属矿智能开采与装备国家重点实验室,辽宁沈阳 110819

出版日期:2025-07-15 发布日期:2025-08-12
通讯作者: 金长宇(1979—),男,教授,博士,博士研究生导师。
作者简介:崔　松(1985—),男,高级工程师。
基金资助:
辽宁省科学技术计划项目(编号:2023JH1 / 10400004)

Study on Inversion Method of In-Situ Stress Field in the Deep Mining Process of Sishanling Based on Unloading Stress

CUI Song¹ 　 WANG Xiaonan ¹ 　 DING Yong ¹ 　 LIU Yang ¹ 　 GUAN Guangxue¹ 　 SONG Jiancun ¹ SHI Shuhao ² 　 JIN Changyu ²

1. Benxi Longxin Mining Co. ,Ltd. ,Benxi 117013,China; 2. State Key Laboratory of Intelligent Deep Metal Mining and Equipment,Shenyang 110819 China

Online:2025-07-15 Published:2025-08-12

摘要/Abstract

摘要： 地应力作为地下工程的主要载荷,其理论分析与回归方法一直是岩土领域的研究热点。受地质演化过程、地质条件以及地应力测试精度等不确定性影响,在地应力场回归过程中容易出现解的不唯一性与易陷入局部最优的难题,因而提出了一种考虑卸荷应力的地应力场精细反演方法。首先通过现场测试获得原岩地应力与卸荷地应力量值;然后采用数值计算对地质演化与开采扰动过程进行模拟,利用岩体路径上关键节点处应力值,采用神经网络反演计算模型边界条件,最终将反演获得的边界条件输入计算模型,进而计算获得工程区域地应力场。根据该方法对思山岭深部采区地应力场进行了反演,通过地应力测试值与反演结果对比证明了所提方法的科学性和适用性,为该矿深部采区稳定性分析提供了依据。

关键词: 地应力场　深部开采　卸荷应力　反演

Abstract: As the main load of underground engineering,the theoretical analysis and regression method of in-situ stress have always been a research hotspot in geotechnical field. Influenced by the uncertainty of geological evolution process,geological conditions and in-situ stress test accuracy,the problem of non-uniqueness of solution and local optimization is easy to appear in the process of in-situ stress field regression. Therefore,this paper proposes a fine in-situ stress field inversion method considering unloading stress. Firstly,the values of original rock in-situ stress and unloading in-situ stress are obtained through field test. Then,the geological evolution and mining disturbance process are simulated by numerical calculation,and the boundary conditions of the model are inverted by neural network by using the stress values at key nodes on the rock mass path. Finally,the boundary conditions obtained by inversion are input into the calculation model,and then the in-situ stress field in the engineering area is calculated. According to the method proposed in this paper,the in-situ stress field in deep mining area of Sishanling is inverted,and the scientificity and applicability of the method proposed in this paper are proved by the in-situ stress test value and ground pressure failure phenomenon,which also provides reference for the stability analysis of deep mining area of Sishanling Mine.

Key words: in-situ stress field,deep mining,unloading stress,inversion

中图分类号:

TD313

崔　松　王晓南　丁　勇　刘　杨　关广学　宋建村　史述浩　金长宇. 基于卸荷应力的思山岭深部采区地应力场反演方法研究 [J]. 金属矿山, 2025, 54(7): 25-32.

CUI Song 　 WANG Xiaonan 　 DING Yong 　 LIU Yang 　 GUAN Guangxue 　 SONG Jiancun 　 SHI Shuhao 　 JIN Changyu . Study on Inversion Method of In-Situ Stress Field in the Deep Mining Process of Sishanling Based on Unloading Stress [J]. Metal Mine, 2025, 54(7): 25-32.

扫码分享