煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2013年
4期
74-77
,共4页
李敬佩%经来旺%杨仁树%郝朋伟%经纬%郭东明
李敬珮%經來旺%楊仁樹%郝朋偉%經緯%郭東明
리경패%경래왕%양인수%학붕위%경위%곽동명
高地压%软岩巷道%组合支护%大松动圈
高地壓%軟巖巷道%組閤支護%大鬆動圈
고지압%연암항도%조합지호%대송동권
high geo-stress%soft rock roadway%combined supporting%large broken circle
以淮北许疃煤矿81采区南翼轨道大巷为研究背景,应用现代固体力学基本理论对大松动圈、高地压软岩巷道情况下金属支架与锚杆之间的相互作用机理进行了较有说服力的剖析,并通过现场工业性试验进行了相应的验证。理论研究和实验结果均表明锚杆与金属支架组合支护效果远远超越了两者单独作用效果之和,同时也论证了松动圈中锚杆借助于金属支架的围岩整体约束功能同样可以达到锚固生根的目的。该研究成果一方面提供了一种效果显著、成本低廉的岩石支护技术,另一方面也进一步完善了岩石巷道的支护理论,对各种情况下巷道的支护设计均有一定的参考价值。
以淮北許疃煤礦81採區南翼軌道大巷為研究揹景,應用現代固體力學基本理論對大鬆動圈、高地壓軟巖巷道情況下金屬支架與錨桿之間的相互作用機理進行瞭較有說服力的剖析,併通過現場工業性試驗進行瞭相應的驗證。理論研究和實驗結果均錶明錨桿與金屬支架組閤支護效果遠遠超越瞭兩者單獨作用效果之和,同時也論證瞭鬆動圈中錨桿藉助于金屬支架的圍巖整體約束功能同樣可以達到錨固生根的目的。該研究成果一方麵提供瞭一種效果顯著、成本低廉的巖石支護技術,另一方麵也進一步完善瞭巖石巷道的支護理論,對各種情況下巷道的支護設計均有一定的參攷價值。
이회북허탄매광81채구남익궤도대항위연구배경,응용현대고체역학기본이론대대송동권、고지압연암항도정황하금속지가여묘간지간적상호작용궤리진행료교유설복력적부석,병통과현장공업성시험진행료상응적험증。이론연구화실험결과균표명묘간여금속지가조합지호효과원원초월료량자단독작용효과지화,동시야론증료송동권중묘간차조우금속지가적위암정체약속공능동양가이체도묘고생근적목적。해연구성과일방면제공료일충효과현저、성본저렴적암석지호기술,령일방면야진일보완선료암석항도적지호이론,대각충정황하항도적지호설계균유일정적삼고개치。
Taking North Rail Roadway at 81 Mining Zone of Xutan Colliery as background , this paper applied basic theory of modern solid mechanics to analyzing mutual action mechanism of metal support and anchored bolt under the condition of large broken circle , soft rock roadway with high geo-stress.Theory and test result both showed that combined supporting effect of anchored bolt and metal support was largely better than that of single supporting , and proved that anchored bolt in broken circle could rely on whole restrain function of metal support and surrounding rock and played reinforcement role .This not only provided an outstanding and low-cost rock supporting technology , but also improved rock roadway supporting theory.It had some reference value for roadway supporting under dif-ferent condition.