摘要
进入21世纪以来,随着国家综合实力的提高,经济的迅速发展,便捷的交通是我国迅速发展的一个主要工作。逢山挖隧,遇水架桥,使得我国基建水平遥遥领先世界。然而,由于国内地域广阔,东西部地区地理位置相对悬殊,特别是西南区域由于地理位置较复杂,修建高速公路大多位于崇山峻岭中,使得工程建设难度较大,特别是一些超长隧道大多数隧道穿越溶洞、煤矿采空区、高浓度瓦斯区、岩爆以及富水区等复杂地质,给施工及后期运营养护带来了诸多的难题。在国内部分长隧道在运营过程中时常发生衬砌掉块、路面拱起、结构变形等危机行车安全的病害。以渝蓉高速巴岳山隧道为背景,通过采用OCTEM对隧道衬砌掉块区域背后煤矿采空区具体范围的探测,有效的解决了传统顺变电磁法由于受现场条件、地形、环境等影响,导致探测效果不理想的状况。
Since entering the 21st century, with the improvement of the comprehensive strength and the rapid development of economy in China, the convenient transportation is a major work of rapid development in China. Tunneling through mountain and building bridge across river make the infrastructure level in China be far ahead of the world. However, due to the vast territory in China, there is the relative disparity between the geographical positions of the eastern and the western regions. Especially in the southwestern region, due to the more complex geographical position, the most of expressway is constructed in the high mountains and lofty hills, which make the engineering construction more difficult.Especially for some super-long tunnels, the most of tunnel runs through the cave, coal mine goaf,high-concentration gas area, rock burst and rich water areas, and the other complicated geologies, which will bring many difficulties to the construction and the later operation and maintenance. In the operating process of some long tunnels in China, the lining dropping, the road hog, the structure deformation and the other diseases often occur, which harm the driving safety. Taking Bayue Mountain Tunnel in Chongqing-Chengdu Expressway as the background, OCTEM is used to detect the specific range of coal mine goaf behind the dropped area of tunnel lining, which effectively solves the situation that the detection effect of the traditional natural electromagnetic method is not ideal due to the influence of site condition,topography and environment.
出处
《城市道桥与防洪》
2022年第10期234-238,241,M0021,共7页
Urban Roads Bridges & Flood Control
