云冈石窟三号窟围岩地震波CT测试分析
首发时间:2013-03-08
摘要:地震波CT技术具有分辨率较高,能较详细的反演被测区域内地质体形态和位置及波速特征。本次研究首次将地震波CT技术引入到石窟文物保护中来。通过对云冈石窟三号窟布设测线并进行数据采集、数据处理,得到了详细的石窟立壁波速图像及衰减图像。经过对比及分析揭示了三号窟赋存岩体的质量情况和岩体破碎带及软弱带的位置和空间展布情况。云冈石窟三号窟岩体的强度呈现北高南低,西高东低的趋势;而在三号窟东侧靠近南面的区域存在带状弧形异常低速区域,推测在降雨时会形成潜在的水分运移通道,故具有降雨诱发滑坡的可能。该项研究为云冈石窟的保护和治理提供了充分有效的依据,同时也为其他石窟文物保护工作提供了一个新的思路。
关键词: 岩土工程 地震波CT 云冈石窟 测线布设 岩体波速 文物保护
For information in English, please click here
Seismic wave CT Test and Analysis in Yungang Grottoes No. three cave
Abstract:The technology of seismic wave CT has higher resolution and can judge the shape and location of anomalous geologic body more detailed. It is the first time that the technology of seismic wave CT is used in studies of grotto relics protection in China. This study considers the No. three cave of Yungang Grottoes as the research object, after several steps such as arrangement of testing lines, data collection, data processing, gained the velocity images and attenuation images of cave wall. After comparison and analysis, revealed the position and space distribution of zone of fracture and zone of weak. Studies show that, on the whole rock strength in No. three cave of Yungang Grottoes is became smaller and smaller from north to south and from west to east; while near the South East Regional of No. three cave, there is an abnormal low velocity arc region, it can probably form a potential water transport channel when it rains, and may lead to a landslide at last. This study not only provides effective basis for the protection and management of Yungang Grottoes, but also provides a new train of thought for other grotto relics protection work.
Keywords: Geotechnical engineering seismic wave CT Yungang Grottoes line layout rock wave velocity the protection of cultural relics
论文图表:
引用
No.4525713771021136****
同行评议
共计0人参与
勘误表
云冈石窟三号窟围岩地震波CT测试分析
评论
全部评论0/1000