• 论文
主办单位:煤炭科学研究总院有限公司、中国煤炭学会学术期刊工作委员会
岩层移动理论与力学模型及其展望
  • Title

    Theoretical and mechanical models of rock strata movement and their prospects

  • 作者

    左建平孙运江文金浩李政岱

  • Author

    ZUO Jianping,SUN Yunjiang,WEN Jinhao,LI Zhengdai

  • Organization
    1.State Key Laboratory of Coal Resources and Safe Mining,China University of Mining & Technology(Beijing),Beijing ,China;2.School of Mechanics & Civil Engineering,China University of Mining & Technology(Beijing),Beijing ,China
  • 摘要

    随着社会对开采沉陷与生态环境问题日益重视,“科学采矿”势在必行。面对新形势,需要在学习前人研究成果的基础上,进行更系统、深入的研究。首先系统总结了国内外垮落法和充填法处理采空区2种情况下的岩层移动理论、优缺点及其适应条件等,重点阐述了关键层理论在岩层移动方面发挥的重要作用。基于采动岩体力学,系统分析了基本顶断裂位置和断裂步距“正态分布”变化的原因。基于采动岩层破断移动的全过程分析和前人的研究成果,提出了充分采动覆岩整体移动的“类双曲线”模型,认为岩层“类双曲线”的焦点位于主关键层位置,该模型通过关键层把砌体梁理论及地表沉陷理论有机联系起来,描述了煤层上覆岩层整体移动规律,是关键层理论的继承和发展。

  • Abstract
    With the increasing social attention on mining induced subsidence and eco-environmental problems,it is imperative to carry out sustainable mining.Facing the new situation,we need to conduct more systematic and in-depth research based on the current research results.In this paper,the rock strata movement theories at home and abroad,their advantages and disadvantages and their application conditions were systematically reviewed when the goaf was controlled by caving method and backfill method.The important role of key strata theory in the theories of rock strata movement and surface subsidence was highlighted.Based on mining induced rock mechanics,the changes of main roof’s fracture location and length were analyzed.The model considers that the focus of hyperbola is located on the main key stratum.The hyperbola model integrates the masonry beam theory and the surface subsidence theory organically through key strata theory.In addition,the model describes the overall movement law of the overlying strata in the coal seam.Therefore,the analogous hyperbola model is further development of key strata theory.
  • 关键词

    岩层移动采动岩体力学砌体梁关键层理论“类双曲线”模型

  • KeyWords

    strata movement; mining induced rock mechanics; voussoir beam;key strata theory; analogous hyperbola model

  • 相关专题
相关问题

主办单位:煤炭科学研究总院有限公司 中国煤炭学会学术期刊工作委员会

©版权所有2015 煤炭科学研究总院有限公司 地址:北京市朝阳区和平里青年沟东路煤炭大厦 邮编:100013
京ICP备05086979号-16  技术支持:云智互联