穿黄隧洞形变检测及三维数字仿真管理系统研究

穿黄工程是南水北调中线总干渠穿越黄河的关键性工程,其中穿黄隧洞工程技术难度最大。穿黄隧洞采用双层衬砌结构,工程地质条件复杂,其在多变的水土压力作用下的变形情况直接关系到穿黄隧洞的运行安全和南水北调中线工程的正常供水。以三维激光扫描技术为工具,获取了穿黄隧洞过水面的三维信息,采用自主研发的"隧道形变检测/监测系统"对隧洞进行形变检测,并建立了穿黄隧洞三维数字仿真管理系统。将测绘技术应用于穿黄隧洞的运行管理,可提供可靠的技术支撑。

Study on deformation inspection and 3 D digital simulation management system of Yellow-River-Crossing Tunnel

The Yellow-River-Crossing Project is the key one of Middle Route Project of South to North Water Diversion Pro-ject, in which, the construction of the tunnel crossing Yellow River is the most difficult .Double composite lining structure is a-dopted in the tunnel project .For the complicated engineering geological condition , the tunnel deformation under various earth and water pressures is directly related to the operation security of tunnel and the normal running of Middle Route Project .The 3D in-formation of flow surface was obtained by 3D laser scanning techniques and the tunnel deformation was inspected by self -devel-oped software of tunnel deformation inspecting and monitoring system .Based on these , the 3D digital simulation management sys-tem is developed.The application of the surveying technique in the operation and management of Yellow -River-Crossing Tun-nel has provided reliable technical support for its safe running .