红外探测技术在隧道超前地质预报中优、缺点探讨

摘要

红外探测技术在隧道超前地质预报中发挥着重要作用，通过实践对仪器的性能和适用范围进行探讨和研究，可以对红外探测仪器的改进起到指导作用。详细阐述红外探水的基本原理、特点、测线布置方式和预报判读依据，结合沪昆客运专线贵州段玉屏至凯里段隧道工程实例，多次准确预报出掌子面前方存在的隐伏含水构造，从而成功避免了隐伏含水构造对隧道施工带来的安全隐患，同时对红外探测技术在隧道超前地质预报中的优、缺点进行分析、探讨。%Infrared detection technology plays an important role in geological forecast of tunnel;and when combining with actual practice, an analytical research on the performance and application scope of this kind of instrument can play a guiding role in improvement of infrared detection instrument. This paper expounds how to use infrared technology for water detecting, including the basic principle, the survey line arrangement, and the basis of forecast interpretation. Especially, in combination with the actual tunnel projects of Yuping-Kaili section on Shanghai-Kunming passenger dedicated line in Guizhou Province, the infrared water detector have accurately forecasted the hidden water-bearing structures in front of the tunnel work-faces for many times, so that the hidden safety hazard for tunnel construction, arising from the hidden water-bearing structure, have been eliminated successfully. This paper also analyses and discusses the advantages and disadvantages of infrared detection technology used in geological forecast of tunnel.