采矿与安全工程学报2017，Vol.34Issue(2)：235-242,8.DOI:10.13545/j.cnki.jmse.2017.02.006
深部软岩巷道底鼓机理与治理试验研究
Experimental research on mechanism and controlling of floor heave in deep soft rock roadway
摘要
Abstract
In order to research on mechanism and controlling method of strong floor heave in deep soft rock roadway, with the floor heave of southern main roadway in Handan MIG Tao'er coal mine expan-sion area as the engineering background, the characteristics and influence factors of strong floor heave in south main roadway were analyzed, the treatment scheme of cable beam + floor grouting was put forward, and the characteristics of floor failure and stress distribution for the two schemes were com-pared and analyzed through similar simulation test of original roadway support and floor heave treat-ment scheme. The results have shown that the factors of strong floor heave include high stress, rock water swelling, and unreasonable supporting structure; shallow floor grouting makes the broken rock mutual cohere and form a whole rock, deep floor grouting fills the deep fractured rock pores, and cable beams anchor the shallow grouting rock mass and the deep grouting rock mass together to limit the floor deformation. The field test has shown that floor deformation is between 38-48 mm, and roadway defor-mation tends to be stable 30 days after the treatment. The treatment technology of floor heave is suitable for floor reinforcement of deep large section roadway and permanent roadway.关键词
深部矿井/软岩巷道/底鼓/底板锚索束/深浅注浆Key words
deep mine/soft rock/floor heave/cable beam/shallow and deep part grouting分类
矿业与冶金引用本文复制引用
孙利辉,杨本生,孙春东,李星,王重文..深部软岩巷道底鼓机理与治理试验研究[J].采矿与安全工程学报,2017,34(2):235-242,8.基金项目
煤矿安全高效开采省部共建教育部重点实验室开放基金项目(JYBSYS2015101) （JYBSYS2015101）
河北省高等学校科学技术研究项目(QN2016230) （QN2016230）
国家自然科学基金项目(51174070,51174015) （51174070,51174015）
河北省自然科学基金项目(E2015402038) （E2015402038）
