Results 61 to 70 of about 26,903 (228)
Mechanism and Control of Cable Breakage in a Roadway with Thick Top Coal in a Rockburst Mine
Advances in Civil Engineering, 2021 Because top coal is not stable, a roadway with thick top coal often appears to mine pressure problems, such as bolt failure, cable breakage, and roof caving. In particular, these problems are more serious in rockburst mines.
Ying Xu, Xiekang Zhou, Weimei Gong
doaj +1 more source
Stability analysis of roadway surrounding rock with weak interlayer under dynamic and static loads
Meikuang Anquan, 2022 To study the deformation and failure law of roadway surrounding rock with weak interlayer under dynamic and static loads, taking the deep transportation roadway of Longfeng Coal Mine as the research object, the mechanical deformation characteristics of ...
LAN Hong +6 more
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The Stability Evaluation of Roadway Surrounding Rock in QingFeng Coal Mine
Advances in Engineering Research, 2014 In order to have a better understanding on the stability of roadway surrounding rock in QingFeng coal mine. Protodyakonov's theory is used to evaluate its stability theoretically, then a numerical simulation is conducted to analyze the stability of roadway surrounding rock in natural state by using the phase finite element software.
Bo TANG +4 more
openaire +2 more sources
Deep Underground Science and Engineering, EarlyView.In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu +6 more
wiley +1 more source
Geofluids, 2021 The expansion of the roadway surrounding rock failure zone may connect the floor aquifer and cause the roadway water inrush. In order to reveal the mechanism of the roadway water inrush above confined water, we established the force model of the roadway ...
Xiaofei Guo +7 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li +4 more
wiley +1 more source
Energy Science & EngineeringTo solve the problem of controlling large deformation of surrounding rock in deep soft rock roadway, the distribution characteristics and deformation mechanism of surrounding rock cracks in soft rock roadway under different lateral pressure coefficients ...
Yujie Ma +5 more
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Surrounding Rock Stability Classification Method of Coal Roadway Based on In Situ Stress
Advances in Civil Engineering, 2021 In situ stress is one of the most important factors affecting surrounding rock stability classification of coal roadway. Most surrounding rock stability classification methods do not fully consider the influence of in situ stress.
Yongjie Yang, Gang Huang, Lingren Meng
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Interstate 74 Quad Cities Corridor Study Scott County, Iowa and Rock Island County, Illinois Project Number IM-74-1(122)0-13-82 FHWA-IOWA-EIS-09-01-F, February 2009 [PDF]
, 2009 The Federal Highway Administration (FHWA) and the Iowa and Illinois Departments of Transportation (Iowa DOT and IDOT) have identified the Selected Alternative for improving Interstate 74 (I-74) from its southern terminus at Avenue of the Cities (23rd ...
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