红外探水在高水位下断裂破碎带隧道施工中的应用

在隧道施工中,断裂破碎带富水段常出现涌水、突水突泥等地质灾害问题,在施工过程中进行超前预报探水可以在一定程度上减少人员伤亡以及财产损失。以揭(阳)惠(来)高速公路小北山一号隧道高水位断裂破碎带施工为工程背景,阐述红外探水技术的基本原理、实施方案、操作方法,以及HS-S310红外探水仪在工程中的应用实践。实践表明:超前红外探水技术针对于断裂破碎带隧道掌子面前方隐伏含水构造体的预报具有一定的准确性以及可参考性。

Infrared Acquisition Technology Applied to tunnel excavation With high water level and fracture zones

During the construction of tunnels,water gushing,water and mud bursting and other geological disasters have been often encountered in fracture zones,and casualties and property losses could be reduced to a certain extent under applications of advance geological prediction with infrared acquisition technology.Basic principles of infrared acquisition technology and HS-S310 infrared acquisition meters adopted in Xiaobeishan Tunnel of Jiehui Expressway have been introduced.The results have shown that the predicted results of infrared acquisition technology are rather accurate especially for water-bearing bodies and can be utilized for predicting water-bearing bodies in front of tunneling face in the fracture zone.