摘要
含弱层露井联采边坡岩体受“边坡卸荷应力场+地下采动应力场”的协同作用,加之多弱层结构的存在,其破坏模式、演化规律以及灾变机理等更加复杂。该文在归纳分析国内外现有研究成果的基础上,对含弱层组合岩体试样力学特性、蠕变本构模型、弱层演化机制以及弱层蠕变特性对边坡的作用机制等内容进行了深入剖析,指出了当前存在的问题以及未来的研究方向与研究重点。研究结果表明:含弱层露井联采边坡具有其自身结构的复杂性,且稳定性受所处环境、时间效应等影响较大,在以后的研究中需充分考虑现场多因素的综合影响,并加强变形规律与破坏机理等方面的基础研究,可为含弱层露井联采条件下矿山边坡灾害防控提供新思路。
The rock mass of the slopes under open-underground mining with weak layers is subjected to the synergistic effect of“slope unloading stress field+underground mining stress field”,along with the presence of multiple weak layer structures,makes the failure mode,evolution law,and disaster mechanism more complex.On the basis of summarizing and analyzing existing domestic and foreign research results,this paper conducts a deep analysis of the mechanical properties,creep constitutive model,weak layer evolution mechanism,and the action mechanism of weak layer creep characteristics on slopes of composite rock samples containing weak layers.It points out the current problems and future research directions and priorities.The research results indicate that the slopes under open-underground mining with weak layers exhibit their own structural complexity,and that stability is greatly affected by the environmental conditions and time-dependent effects.Future research should fully consider the comprehensive influence of multiple on-site factors and strengthen fundamental research on deformation laws and mechanisms.This can provide new ideas for the prevention and control of mine slope disasters under open-underground mining with weak layers.
作者
李学良
李凤明
王峰
Li Xueliang;Li Fengming;Wang Feng(Beijing Tianma Intelligent Control Technology Co.,Ltd.;China Coal Research Institute;Beijing Institute of Land Renovation and Ecological Restoration Technology Co.,Ltd.,China Coal Technology and Engineering Group)
出处
《勘察科学技术》
2025年第1期9-15,共7页
Site Investigation Science and Technology
基金
北京市科技计划课题(Z181100005118012)
中煤科工创新创业重点资助项目(2019-2-ZD004)
天玛智控自立项目(2024-TM-014-J1)。
关键词
弱层
露井联采
边坡
研究现状
存在问题
研究重点
weak layer
open-underground mining
slope
research status
existing problems
research priorities
作者简介
李学良(1985-),男,副研究员,博士(后),主要从事开采沉陷与边坡工程等方面的工作。
