摘要
在煤矿采空区密闭的选材中,主要以混凝土喷浆及砖墙为主,这些刚性材料进行密闭,要考虑密闭对顶板的抗压及对爆炸的冲击性。新型材料主要采用让压原理,有其传统材料不具备的特点。文章试图提出一种新型永久密闭,来提高永久密闭的稳定性,符合煤矿安全生产的要求。
In the coal mining air stopping of goaf of the material, It mainly chooses the brick and the concrete gunniting. These rigid materials making the air stopping must conside the roof of the compression and the impact of the explosion. As a new material mainly using yield principle, has its traditional materials not having the features. The paper tried to make a new technology, to improve the stability of permanent air stopping, with coal mine production safety requirements.
出处
《煤炭技术》
CAS
北大核心
2009年第1期10-12,共3页
Coal Technology
关键词
永久密闭
混凝土喷浆
抗压强度
抗冲击性
新型材料
air stopping
concrete gunniting
compressive Strength
impact strength
new material