摘要
云冈石窟围岩和覆盖层整体处于包气带中，为了研究其湿热环境对石窟的影响，通过在覆盖层的监测孔、石窟砂岩的垂直和水平监测孔布置空气环境监测仪器，进行了云冈石窟包气带湿热因子的观测试验，并对湿热环境时空变化特征及其成因进行分析。分析结果发现在埋深1m以下，包气带气温稳定在11．6℃～11．7℃之间，而空气相对湿度则接近饱和状态。气压观测还表明包气带存在垂向上的气压梯度，梯度方向随季节变化，为空气和湿气运移创造了客观条件。
The surrounding rock and overlying layer of Yungang Grottoes are overall in the vadose zone. In order to study the impact of moisturetemperature environment for grottoes, monitoring on the moisture and temperature environment of vadose zone in the grottoes is carried out combined with some air environment observation instruments in monitoring holes of overlying layer and grottoes sandstone. The temporal-spatial characteristics and its causes of moisture-temperature environment are also analyzed. It is indicated that in the depth of lm or less the tempera- ture is steady between 11.6℃～11.7℃ and almost the whole vadose zone in the hill contains vapor-saturated air. The pressure monitoring shows that vertical air-pressure gradient whose direction changes with the seasons is exist in the vadose zone and it can drive air and moisture flow.
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2015年第B02期93-96,共4页
South-to-North Water Transfers and Water Science & Technology
基金
国家科技支撑计划项目“石窟水分来源综合探查技术研究”（2009BAK53B02）
关键词
湿热环境
包气带
云冈石窟
监测实验
水汽
风化
砂岩
moist ure-temperature environment
vadose zone
Yungang Grottoes
monitoring experiment
vapor
deterioration
Fractures
