Results 151 to 160 of about 1,369,373 (261)
Geologic Controls of Shear Strength Behavior of Mudrocks
, 2006 Ala' M Hajdarwish
openalex +1 more source
Energy Science &Engineering, EarlyView.ABSTRACT The powered roof supports in the longwall complex are placed and interconnected next to one another, typically about 125–250 units in a longwall face. It is an essential component in the longwall complex, which also includes a shearer (or plow) and an armored face conveyor.
Dawid Szurgacz +3 more
wiley +1 more source
Failure Mechanism of Asymmetric Large Deformations Under Repeated Mining in Roadways
Energy Science &Engineering, EarlyView.Principal stress‐evolution diagram at different advance positions of 42205 working face. ABSTRACT To address the challenge of controlling severe asymmetrical deformation in roadways subjected to repeated mining, this study (i.e., based on the engineering context of the Buertai Coal Mine) investigated the characteristics of the regional stress field in ...
Ai‐Rong Wang +3 more
wiley +1 more source
Study on the Law of Multi‐Fracture Propagation in Different Fracturing Fluid Viscosity
Energy Science &Engineering, EarlyView.Samples and equipment Sample preparation Test equipment Analysis of test results Fracture propagation morphology Influence of fracturing fluid viscosity on crack initiation time/(fracture initiation pressure) Evolution law of injection pressure Cumulative relation curve of pressure–time–acoustic ABSTRACT Using the TCHFSM‐I large‐scale accurate triaxial
Zhixing Zhang +4 more
wiley +1 more source
Geology and geochemistry of radon in shear zones
, 1990 Linda Gundersen +3 more
openalex +2 more sources
Research on Precise Identification of Rock Strength Based on Bolt Drilling Parameters
Energy Science &Engineering, EarlyView.Drilling detection test platform. ABSTRACT During roadway excavation, the presence of weak interlayers and fractured rock masses significantly affects roof stability. To achieve timely and effective roadway support, it is crucial to identify and predict different rock types based on drilling signals from roof bolters.
Qiang Zhu +4 more
wiley +1 more source
Записки Горного институтаSlope failures in mining engineering pose significant risks to slope stability control, necessitating a thorough investigation into their root causes. This paper focuses on a back analysis of a slope failure in the Zerga section of the Ouenza – Algeria ...
Fares Belgueliel +3 more
doaj
Energy Science &Engineering, EarlyView.Aiming at the difficulties in accurately calculating the movement and deformation of small‐sized, deep‐buried dams with a significant height‐to‐depth ratio in deep fully mechanized caving mining, this study proposes to separate the analysis of surface and dam deformation.
Zhang Feng +7 more
wiley +1 more source