CAJ | 학술논문

以某矿2310工作面为例，采用了冲击地压启动理论对工作面的集中动载和集中静载进行了分析，确定了影响因素；运用FLAC3D 数值模拟，对沿空工作面回采过程中的应力分布规律进行了研究；最后采用动态权重评价方法及置信度识别原则，确定了工作面的冲击危险等级。研究表明，2310工作面冲击影响因素以集中静载为主，在工作面下端头区域应力集中明显，通过评价2310工作面冲击危险等级为弱冲击危险，与现场情况一致，实用性较强。
이모광2310공작면위례，채용료충격지압계동이론대공작면적집중동재화집중정재진행료분석，학정료영향인소；운용FLAC3D 수치모의，대연공공작면회채과정중적응력분포규률진행료연구；최후채용동태권중평개방법급치신도식별원칙，학정료공작면적충격위험등급。연구표명，2310공작면충격영향인소이집중정재위주，재공작면하단두구역응력집중명현，통과평개2310공작면충격위험등급위약충격위험，여현장정황일치，실용성교강。
Taking 2310 mining face as an example , this paper applied rock-burst start theory to analyzing dynamic load and static load influencing the mining face.Influence factors were confirmed.Using FLAC3D software, stress distribution rule of the mining face along gob in mining was simulated.Rock-burst danger degree of the mining face was obtained by dynamic weight and confidences identify principle.Results showed that intensive static load was main influence factor of rock-burst, stress concentration was obvious at lower end of the mining face.Rock-burst danger degree of this face was weak , which was proved in practice.