微波在石窟岩体水分可视化探查的研究与应用

水-岩作用是岩体劣化的主要因素之一,水分探查是研究其水-岩作用的基础。利用微波在不同介质中传播速度的差异性探查石窟岩体水分来源、水分分布及水分的时空运移特征。结果表明:微波测湿技术可有效探查浅表层石窟岩体的水分来源和水分的空间分布特征;在长期监测条件下,可测试不同深度岩体水分变化的时空特征,同时能够可视化展示石窟岩体水分对环境因子的响应特征。微波技术为石窟岩体水分探查提供新的思路,具有便捷可靠、无损检测、可视化探查等优点。

Research and application of microwave in visual detection of rock mass moisture in Grottoes

Water-rock interaction is one of the main factors for deterioration of rock mass in grottoes, and water exploration of rock mass in Grottoes is the premise of studying water-rock interaction. The difference of microwave propagation velocity in different media is used to explore the water source, water distribution, temporal and spatial migration characteristics of water in grottoes. The results show that the microwave humidity measurement technology can effectively explore the water source of grottoes and the spatial distribution characteristics of shallow rock-mass water; under the long-term monitoring conditions, it can test the spatial and temporal characteristics of water changes in rock mass at different depths, and can visually display the response characteristics of water content of Grottoes rock mass to environmental factors. Microwave technology provides a new idea for water exploration of rock mass in grottoes, which has the advantages of convenient and reliable, nondestructive detection and visual exploration.