【摘要】 为了研究分析岩性、围压两因素对于沉积岩渗透率的影响,对葛亭煤矿11601工作面底板典型的砂岩和泥岩两种沉积岩进行较低围压的全应力应变渗透特性试验。研究证明:灰岩完全破坏后渗透率始终保持在较高水平,泥岩破坏后由于岩性的影响渗透率存在一定程度降低;围压主要是通过影响沉积岩试件裂隙的变化,进而影响试件渗透率的变化。文章研究了沉积岩较低围压下的渗透规律,这对于赋存较浅矿井底板突水防治具有一定的指导意义。更多还原

【Abstract】 In order to study and analyze two factors of the lithology and surrounding pressure affected to the permeability rate of the sedimentary rock,a test on the full stress-strain permeable features with low surrounding pressure was conducted on the typical sandstone and mudstone sedimentary rocks of the floor in No.11601 coal mining face of Getting Mine.The study showed that after the sandstone fully failed,the permeability would be always kept in a high level and after the mudstone failed,due to the influence of the lithology,the permeability of the mudstone would be reduced in a certain degree.Mainly with the variation affected to the fracturing of the sedimentary rock,the surrounding pressure would further affect the variation of the permeability of the samples.The paper had a study on the permeable law of the sedimentary rock with a low surrounding pressure and the study would have certain guidance to the water inrush prevention and control of the floor in mine with a shallow depth seam.更多还原