高应力软岩巷道卸压槽在不同位置的数值模拟分析

doi:10.11799/ce201310026

Abstract

Abstract:

According to exposed problems for high stress and soft rock roadway of pressure intense、soft broken surrounding rock and roadway support difficulties, analyzed pressure releasing slot play an active role in the areas of relieving underground pressure and control of surrounding rock deformation,the numerical simulation was applied to the comparison analysis of destruction of the surrounding rock mass and stress changes in the roadway excavation pressure releasing slot before and after,and optimize selected pressure releasing slot accurate emplaced position.The results showed that it could effectively control the amount of change of surrounding rock after the roadway excavated pressure releasing slot, roadway roof and floor and Lane sides closer to 20 ~ 30mm reduction;The degree of stress concentration decreases,peak stress transferred to the surrounding rock deep, pressure relief have a good effect,effectively safeguard the security and stability of the roadway.

Key words: high stress and soft rock, roadway support, pressure releasing slot, numerical simulation, security and stability

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URL: http://www.coale.com.cn/EN/10.11799/ce201310026

http://www.coale.com.cn/EN/Y2013/V45/I10/76

[1]	. Decompression Driving Technology of Underlying Roadway in Close Seam Mining Face [J]. COAL ENGINEERING, 2019, 51(5): 87-91.
[2]	. Rock Structure Type and Numerical Simulation Analysis of Stability of Roadway Compound Roof in Zhaogu No.1 Mine [J]. COAL ENGINEERING, 2019, 51(5): 123-128.
[3]	. Study on the influence of dimensional effect of rectangular roadway on the stability of surrounding rock of roadway [J]. COAL ENGINEERING, 2019, 51(4): 62-67.
[4]	sun Alicena. Flow Field Simulation and Experimental Study of a New Two-Product Cyclone [J]. COAL ENGINEERING, 2019, 51(4): 113-117.
[5]	. Numerical Simulation of Freezing Temperature Field-Sound Field Coupling in Silty Clay Layer [J]. COAL ENGINEERING, 2019, 51(2): 118-123.
[6]	. Study on Supporting Technology of Soft Rock Roadway under High Geo-stress in Deep Mine [J]. COAL ENGINEERING, 2019, 51(1): 44-46.
[7]	. Characteristics of Mining Stress in Deeply-buried and Extremely Thick Coal Seam and Its Influence on Adjacent Roadways [J]. COAL ENGINEERING, 2019, 51(1): 77-81.
[8]	. Study on relation between effective drainage radius of borehole and drilling wall deformation in outburst coal seam [J]. COAL ENGINEERING, 2018, 50(7): 87-91.
[9]	. Experimental study on stability of pillar in upward mining in pillar mined out area [J]. COAL ENGINEERING, 2018, 50(4): 5-9.
[10]	gou jin gou jingou jin. Research on Surrounding rock Controlling Technology of Roadway in Gob Entry Driving of Face-mining [J]. COAL ENGINEERING, 2018, 50(4): 43-47.
[11]	. Numerical simulation of bubble particle collision efficiency in turbulent conditions [J]. COAL ENGINEERING, 2018, 50(4): 144-148.
[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]	. Numerical Simulation Study on The Overlying Strata Failure Rules of Roadway Backfill under Strong Aquifer [J]. COAL ENGINEERING, 2018, 50(10): 126-129.
[15]	. Sima coal mine as an example to Analyze the Mechanism of Fault Activation and Water-inrush from Floor Fault [J]. COAL ENGINEERING, 2018, 50(1): 85-88.

Optimal Design and Application of Pressure Releasing Slot in High Stress and Soft Rock Roadway

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