煤巷卸压槽及其防突作用机理的初步研究

煤巷卸压槽及其防突作用机理的初步研究 English Version

基金项目: 煤炭科研基金

摘要: 本文应用弹塑性力学、相似理论、岩体力学等知识，探讨了煤巷卸压槽的防突作用机理；并进行了实验室的模拟试验，得出了煤巷卸压槽开挖后煤体周围应力分布状态。研究表明：煤巷卸压槽能够防止煤和瓦斯突出的必要条件在于卸压槽开掘后应能形成较大范围的卸压区。
- 煤巷卸压槽 /
- 相似模拟 /
- 煤和瓦斯突出
Abstract: On the basis of elasto-plastic mechanics,similarity theory and rock mechanics,the effect of stress rela-xation groove on the outburst of coal and gas in coal tunnel is discussed in this paper.The analogue experiment hasbeen made in laboratory. The state of stress distribution around coal body can be obtained when stress relaxationgroove of coal tunnel has been developed. The research work shows that the condition of outburst prevention instress relaxation groove of coal tunnel depends on the size of stress relaxation zone.
- stress relaxation groove of coal tunnel /
- similar analogy /
- outburst of coal and gas.