摘要
开滦泥质软岩巷道呈现全断面非线性大变形特征,通过扫描电镜、透射电镜及X射线衍射等微观分析手段,摸清了高蒙脱石含量泥质岩层巷道的软化膨胀机理,对带关键点强化的锁腿支架实施壁后充填、滞后注浆等技术,实现了巷道变形的稳定控制。
Argillaceous soft rock roadway in Kailuan presents full-face nonlinear large deformation characteristics.SEM,TEM,and X-ray diffraction are all applied in the mechanism research.As a result of the experiments,softening and expansion mechanism in argillaceous strata roadway with high content of montmorillonite is obtained.Implementing backfilling,lag grouting technology to leg-lock support which has critical points.The combined support is effective to control the deformation.
出处
《煤矿安全》
CAS
北大核心
2013年第7期202-204,共3页
Safety in Coal Mines
关键词
泥质软岩
变形机理
控制对策
壁后充填
argillaceous soft rock
deformation mechanism
countermeasures
backfilling
