采矿与安全工程学报2012，Vol.29Issue(6)：757-761,5.
采场坚硬顶板沿空巷旁柔性充填留巷试验研究
Experimental Study on Gob-Side Entry Retaining by Roadside Flexible Packing Under Hard Roof
摘要
Abstract
In order to achieve gob-side entry retaining with flexible filling body (filling gangue) under condition of hard and direct roof, uniaxial compression characteristics of sacked gangue body are gained by experiment, combined with the establishment of lateral overlying strata's constructional model alongside gob side entry retaining, static load caused by overlying strata movement is quantitatively calculated. Dynamic effect of constructional model of roof is studied by means of dynamics, and dynamic load is quantitatively calculated. Thus, when filling width is designed as 2 meters, static load of filling body is 816 kN/m, and dynamic load is 257.3 kN/m with limestone's fracture near the coal wall. Supporting demand of static load and dynamic load are satisfied by flexible filling body.关键词
沿空留巷/坚硬顶板/柔性充填/动载荷/试验Key words
gob side entry retaining/ hard roof/ flexible filling/ dynamic load/ experiment分类
矿业与冶金引用本文复制引用
成云海,姜福兴,林继凯,陈清华,张东,冯飞胜..采场坚硬顶板沿空巷旁柔性充填留巷试验研究[J].采矿与安全工程学报,2012,29(6):757-761,5.基金项目
国家自然科学基金项目(51174002,51174016) （51174002,51174016）
国家重点基础研究发展计划(973)项目(2010CB226800) （973）
