Shaohua Wang
Taiyuan University of Technology
Coal miningViscosityGeologyWork (thermodynamics)BoreholeMining engineeringGeotechnical engineeringRoofHydraulic fracturingPressure reductionFracturing fluidLong spanStress distributionEdge (geometry)Fracture (geology)CoalFracture toughness
2Publications
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Publications 2
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#1Liu Zhenghe (TUT: Taiyuan University of Technology)H-Index: 1
#2Shaohua Wang (TUT: Taiyuan University of Technology)
Last. Yang Dong (TUT: Taiyuan University of Technology)
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Directional hydraulic fracturing by prefabricating longitudinal (axial) cracks on the sides of boreholes is an effective technique to control hard roof and ensure mining safety. In the present work, a true triaxial hydraulic fracturing experimental device was used to study the influence of prefabricated crack (pre-crack) parameters (including inclination angle and crack length), fracturing fluid viscosity, and mechanical characteristics of rocks on directional hydraulic fracturing with axial pre...
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#1Liu Zhenghe (TUT: Taiyuan University of Technology)
#1Liu Zhenghe (TUT: Taiyuan University of Technology)
view all 7 authors...
The width of an abandoned roadway has a great influence on the roof stability of the working face. According to the coal seam conditions of the 30106 working face in the Sanyuan Shiku mine, the advance of a working face through an abandoned roadway was studied by using theoretical analysis, similar material simulation, numerical simulation, and field testing to determine the law of stope roof fracture migration, the stress distribution characteristics, and the variation in support resistance. Se...
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