基于核磁共振的花岗岩孔隙结构研究分析
Research and Analysis of Granite Pore Structure Based on Nuclear Magnetic Resonance
李永杨 1郝英奇 2陈旭东2
作者信息
- 1. 安徽建筑大学勘测设计研究院有限公司,安徽 合肥 230022
- 2. 安徽建筑大学土木工程学院,安徽 合肥 230601
- 折叠
摘要
为了研究花岗岩内部孔隙结构特征,文中选取某地区花岗岩,对加工后的岩样进行真空饱水,通过核磁共振检测设备对岩样进行检测,得到岩石的T2 谱图、孔径分布、孔隙度和谱面积.试验结果表明,花岗岩的T2 谱图曲线有三个峰,主峰峰值在40 左右,次峰1 峰值在52 左右,且两个峰面积相差不大;花岗岩内部以中小孔径的孔隙为主,大孔隙很少;花岗岩在饱水后测得的孔隙度在1.97%附近.
Abstract
In order to study the characteristics of the internal pore structure of granite,granite from a certain region was selected,and the pro-cessed rock samples were vacuum saturated with water,and the rock samples were detected by NMR testing equipment to obtain the T2 spectro-gram,pore size distribution,porosity and spectral area of the rock.The test results show that:the T2 spectral curve of granite has three peaks,the main peak is around 40,the secondary peak 1 peak is around 52,and the peak area of the two peaks is not much different;granite is domi-nated by small and medium-sized pores,and the large pores are rare;the porosity of granite measured after saturated with water is in the vicin-ity of 1.97%.
关键词
花岗岩/T2谱/孔径分布/孔隙度Key words
Granite/T2 spectrum/Pore size distribution/Porosity引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据