科研之友
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摘要
The effective support of the surrounding rock of the roadway is an important measure to prevent the effects of mining-induced tremors and control rock bursts. Regarding the control of stability of the surrounding rock of the roadways in coal mines with rock bursts, this paper analyzed the damage conditions for the surrounding rock of the roadway under the static load as well as under both static and dynamic loads; in the experiment, he damage conditions of dynamic loads on the surrounding roadway rock of the roadway were studied. Taking the excavation roadway in the coal seam of the working face in the area for example, where the rock burst occurred recently. This paper comparatively analyzed the supporting effects of conventional bolt support and assistive anchor cable support under the static load and disturbance of mining-induced tremors with different intensities. According to the studies, compared with only static load, involvement of mining-induced tremors disturbance promotes frequent impact on the destruction of surrounding rock, and the stable state of surrounding rock gradually degrades with the increase of the energy of mining-induced tremors; in certain conditions, compared with the conventional use of bolt support, after additional anchor cable on the roadway wall which is used to strengthen the support, the stability of the surrounding rock of the roadway can be improved to a certain extent, and normal use of the roadway can be maintained, which enables the roadway to resist the disturbance of mining-induced tremors with about 10(5)J energy.
- 出版日期2013-11
- 单位中国矿业大学（北京）; 新疆大学
