Prediction and Control of Abnormal Roof Water Inrush Pressure Law in Fully Mechanized Caving Face
PENG Linjun
SONG Zhenqi
ZHANG Dongfeng
ZHOU Guanghua
Abstract：By taking the abnormal pressures in five water inrush accidents occurred in 6301 working face in Jining No. 3 Mine of Yanzhou Mining Group Co. , Ltd. , as the research object, through the theoretical analysis, the building of mechanical models, on-the-spot observation, the prediction and actual measurement of the strata movement law above the working face, it came to conclusion that the rupture of the main roof was the main cause of roof water inrush accidents. In the meantime, analysis was made on the operation condition of the powered supports, the variation law of abnormal roof pressure was mastered, a mechanical model for roof control was built, the control criterion for powered support was formulated, and the control measures for preventing water inrush and abnormal roof pressure were proposed, all of these provided theoretical basis for safe and efficient coal mining of mines with similar conditions.
Keywords：fully mechanized caving faceunderground pressure anomalyprediction of water inrushcontrol technology
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 57-60 )