Coal rock dynamic disaster prediction method and device based on dust-slag ratio

• Main Authors: WANG JIANTING, WANG JIANWEI, LIU HAODONG, QI HUAIYUAN, YANG JIAN, GANG ZHANWEI
• Format: Patent
• Language: Chinese; English
• Published: 06.05.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR; TESTING

The invention provides a coal rock dynamic disaster prediction method and device based on the dust-slag ratio. The coal rock dynamic disaster prediction method comprises the steps that 1, drilling cuttings are collected while drilling in mining work; 2, classifying and weighing the drilling cuttings according to the particle sizes of the drilling cuttings; 3, according to the mass of the drilling cuttings with the different particle sizes weighed in the step 2, the mass ratio of the drilling cuttings with the different particle sizes is calculated; and 4, calculating a difference value between the mass ratio calculated in the step 3 and a standard mass ratio, taking a difference value change rate as a mass ratio index, and pre-judging the hardness of the front coal/rock according to the mass ratio index. The disaster occurrence mechanism is analyzed, drilling cuttings drilled by a drill rod are collected in the drilling period, the collected drilling cuttings are classified and weighed respectively, and the h