锚杆支护巷道离层失稳机理及控制研究-采矿工程专业毕业论文.docxVIP

山东科技大学硕士学位论文 山东科技大学硕士学位论文 摘要 摘要 本文系统地研究了综放顺槽的围岩结构特征，揭示了综放顺槽的矿压显现规 律。根据库仑强度准则，运用理论分析和数值计算，揭示了综放顺槽顶煤离层的 机理和影响因素。全面分析了顶煤的冒落形式和影响因素，从不同角度解释了离 层型冒落的机理。运用组合梁原理、挤压原理和块体力学原理共同分析已离层顶 煤的稳定性，重点分析了煤体中节理裂隙对顶煤稳定性的影响，提出了根据危险 节理裂隙面位置和数量进行顶煤离层测点设计的方法，以保证监测的准确性。尝 试运用GIS技术进行巷道信息处理。 关键词：综放顺槽，锚杆支护，顶煤离层冒落，离层监测，GIs ABSTRACT The structure character of fully mechanized cavin2 coalface gate has been analyzed systematicalIy， and strata behavior regularity of fulIy mechanized caVing coalface gate has been disclosed．According to the Coulomb intensity rule，using theoretic analysis and numerical calculus， this paper has disclosed the mechanism and innuence factors of roof separation of fully mechanized caving coalface gate．The form of roof fall caving and influence factors has been analyzed roundly．The mechanism of separation cavity has been explained from diffbrent points of view． Using the theories of combination girder，extrusion and block mechanics together，stability of separated roof coal has been analyzed．Innuence of cranny in coal to roof stability has been analyzed with emphasis， and design method of roof separation measuring points，which should be set in 、rirtue of the position and number of dan窑erous cranny，has been put forward in order to ensure the verac“y of monitOring．T1lis paper has仃ied to deal w．m road啪y infomation using GIS Keywords：fully mechanized caVing gate， bolting support， rOof separation caVity，separation mOnitoring，GIS ．1． 声明本人呈交给山东科技大学的这篇硕士学位论文，除了所列 声明 本人呈交给山东科技大学的这篇硕士学位论文，除了所列 参考文献和世所公认的文献外，全部是本人在导师指导下的研 究成果。该论文尚没有呈交于其它任何学术机关作鉴定。 研究生签名：2}寸 日 期：D多 适y 菇彬 AFFIRMATION I declare that this dissertation，submitted in fulfillment of the requirements for me award of Master of Philosophy， in S handong UniVersity of Science and Technology，is wh011y my own work unless referenced of acknowledge．The document has not been submitted for qualification at any other academic institute． signature：5也 L；呐：啪 7 j’ Date：哆y巧 山东科技大学硕士学位论文 山东科技大学硕士学位论文 绪论 1 绪论 1．1课题的提出及研究的意义 从1872年英国北威尔士露天页岩矿首次应用锚