CAJ | 학술논문

依据深部巷道围岩的稳定性特征，探讨了巷道围岩层裂板结构的形成机理，并建立了层裂板结构稳定性的力学模型。应用结构非线性稳定性的尖点突变模型，分析了巷道围岩层裂板结构失稳的力学机制，给出了2种条件下巷帮层裂板结构失稳的充要条件。研究表明：尖点突变模型能有效地预测片帮型煤矿巷道的冲击矿压危险性；通过加固巷帮及巷道顶底角围岩，提高巷帮围岩的结构刚度，增强巷帮围岩的抗屈曲失稳能力，可有效防治片帮型煤矿巷道的冲击矿压事故。
의거심부항도위암적은정성특정，탐토료항도위암층렬판결구적형성궤리，병건립료층렬판결구은정성적역학모형。응용결구비선성은정성적첨점돌변모형，분석료항도위암층렬판결구실은적역학궤제，급출료2충조건하항방층렬판결구실은적충요조건。연구표명：첨점돌변모형능유효지예측편방형매광항도적충격광압위험성；통과가고항방급항도정저각위암，제고항방위암적결구강도，증강항방위암적항굴곡실은능력，가유효방치편방형매광항도적충격광압사고。
Based on the stability characteristics of surrounding rock of deep roadway, the forming mechanism and stable mechanics model of crack plate structure are studied. With the application of cusp catastrophe model on nonlinear stable structure, the instability property of crack plate structure is analysized and the necessary and sufficient conditions under two different cases is put forward. The study proves that the catastrophe theory can effectively predict the dangerousness of slough roadway rock burst. By reinforcing surrounding rock on the top and bottom corner, the stiffness of surrounding rock is increased and its anti-buckling capacity is also enhanced, therefore rock-burst accident in spall-ing-type coal mine tunnel can be effectively prevented.