特厚煤层大断面煤巷围岩稳定及其控制研究

doi:10.11799/ce201612014

Abstract

Abstract: In order to solve the high deformation and difficult support problems of large section roadway with extremely-thick coal seam, the paper studied top coal thickness and roadway width which have influence on stability of surrounding rock through FLAC3D software. “two-stage controlling system”, namely “BS bolts” cooperative control system, is proposed based on destruction characters of surrounding rock. its stability is analyzed by mechanics theory. Field test results show that roof-to-floor relative convergence is 112mm, with two sides relative convergence is 87mm by used two-stage controlling system. The surrounding rock of roadway is effectively controlled.

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TD353

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URL: http://www.coale.com.cn/EN/10.11799/ce201612014

http://www.coale.com.cn/EN/Y2016/V48/I12/42

[1]	. Study on supporting technology of 6m high mining height along goaf [J]. COAL ENGINEERING, 2019, 51(5): 78-81.
[2]	q 11. Research and Practice of Cutting Pole Protection for Narrow Coal Pillar in Thick Coal Seam Section of Changping Coal Mine [J]. COAL ENGINEERING, 2019, 51(5): 82-86.
[3]	. [J]. COAL ENGINEERING, 2019, 51(5): 92-95.
[4]	. Model test study on interaction between concrete-filled steel tube support and surrounding rock [J]. COAL ENGINEERING, 2019, 51(4): 68-73.
[5]	. Research and Application on Technology of Flexible –formwork Concrete in gob-side entry retaining automatically of no-pillar in thick coal seams [J]. COAL ENGINEERING, 2019, 51(2): 32-36.
[6]	. [J]. COAL ENGINEERING, 2019, 51(1): 35-39.
[7]	. Study on Supporting Technology of Soft Rock Roadway under High Geo-stress in Deep Mine [J]. COAL ENGINEERING, 2019, 51(1): 44-46.
[8]	. Active-passive combined support technique for large span open-off cut in thick coal seam [J]. COAL ENGINEERING, 2018, 50(12): 41-45.
[9]	. Study on Failure Mechanism and Control of High Stress and Soft Rock Roadway Support [J]. COAL ENGINEERING, 2018, 50(12): 46-49.
[10]	. Study on roadway deformation mechanism and reinforcement support technology under fault influence [J]. COAL ENGINEERING, 2018, 50(12): 50-53.
[11]	. Technology analysis and Application of fully mechanized mining face crossed abandoned shaft [J]. COAL ENGINEERING, 2018, 50(11): 14-17.
[12]	. Determination of the Parameters of Filling Wall Based on Large Span of Critical Rock Block in the Gob Side Entry Retaining [J]. COAL ENGINEERING, 2018, 50(11): 38-42.
[13]	zheng feng0. Research on Combined Supporting Technology of Coal Roadway under the Effect of Fault Structure [J]. COAL ENGINEERING, 2018, 50(11): 43-47.
[14]	. Research on roadway layout orientation and support technology of lower coal seam in very close distance coal seams [J]. COAL ENGINEERING, 2018, 50(11): 48-50.
[15]	. [J]. COAL ENGINEERING, 2018, 50(10): 14-18.

Research on stability and control of large section roadway with extremely-thick coal seam

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