A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Study on Coal Roadway Supporting Parameters of Broken Thick Top-Coal Large Section
In order to solve the supporting problem of Wujiagou ore broken thick top-coal large sections coal roadway, in view of the mining geology and technology conditions, select the typical coal roadway 5106 tank and detect roof structure, detection results show that the major roof is coal, local contains feeble mudstone interlayer, shallow crack development, deep crack gradually reduce , then put forward the extra long bolt anchoring break top-coal to deep less fracture zone, and the theoretical calculation shows the feasibility and basic support parameters of using extra long bolt controlling deformation of coal roadway; Using FLAC numerical simulation method for different support scheme makes a comparative study, show that the extra long bolting effects obvious, and determined choosing extra long bolt + metal nets + W steel belt scheme. The site industrial test show that the extra long bolt + metal nets + W steel belt scheme supporting thick top-coal large sections of coal roadway effect is good.
Study on Coal Roadway Supporting Parameters of Broken Thick Top-Coal Large Section
In order to solve the supporting problem of Wujiagou ore broken thick top-coal large sections coal roadway, in view of the mining geology and technology conditions, select the typical coal roadway 5106 tank and detect roof structure, detection results show that the major roof is coal, local contains feeble mudstone interlayer, shallow crack development, deep crack gradually reduce , then put forward the extra long bolt anchoring break top-coal to deep less fracture zone, and the theoretical calculation shows the feasibility and basic support parameters of using extra long bolt controlling deformation of coal roadway; Using FLAC numerical simulation method for different support scheme makes a comparative study, show that the extra long bolting effects obvious, and determined choosing extra long bolt + metal nets + W steel belt scheme. The site industrial test show that the extra long bolt + metal nets + W steel belt scheme supporting thick top-coal large sections of coal roadway effect is good.
Study on Coal Roadway Supporting Parameters of Broken Thick Top-Coal Large Section
Guan, Wen Hua / Lv, Kun / Peng, Bo / Ma, Wang
Advanced Materials Research ; 535-537 ; 1641-1646
2012-06-14
6 pages
Article (Journal)
Electronic Resource
English
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