摘要
随着我国隧道技术的进步,长大隧道的施工非常普遍,复杂的地质情况及水害的频发已成为长大隧道施工中影响安全的难题。现有瞬变电磁超前探测技术主要反映隧道掘进正前方的地质情况,无法对掌子面前方周围的信息进行反馈,故已很难满足施工现场的安全要求。以汕昆高速公路某隧道掌子面超前探测为例,对三维可视化技术进行介绍。该技术通过定点转角度布置测点的方式获取多个二维数据,并将二维数据反演后的深度数据组合成三维数据体,且通过三维可视化软件成图来实现含水体位置及形态的立体呈现。
With the development of tunnel technology in China, the construction of large ＆ long tunnels becomes popular, complex geological conditions and the frequent occurrence of water damage has become a problem affecting safety in long ＆ large tunnel construction. The existing transient electromagnetic advance detection technology mainly reflects the geological conditions in front of the tunnel, it is unable to feed back information around tunnel face, so it can hardly meet the safety requirement of the construction site. This paper gave introduction to 3D visualization technology based on advance detection in front of tunnel face in certain tunnel on Shantou - Kunming Expressway. The technology acquires multiple 2D data by arranging the measuring points at fixed point different angles, and the depth data from inversion of 2D data will be integrated into 3D data body, and the 3D visualization software is used to realize the stereoscopic presentation of the position and shape of the water body.
出处
《公路交通技术》
2017年第3期105-109,共5页
Technology of Highway and Transport
关键词
隧道
瞬变电磁法
超前
三维可视化技术
tunnel
transient electromagnetic method
advanced
3D visualization technology
