小浪底北岸灌区控制性工程隧洞线路分析

Analysis on Design Optimization of Tunnel of Xiaolangdi Irrigation Project on North Bank of Yellow River

通过对项目区地质测绘和地勘报告进行分析,在全面分析线路布置、断层和岩性、施工、投资和风险的基础上对小浪底北岸灌区控制性工程隧洞线路进行了调整。比较初选线路与调整线路可知,调整后隧洞线路避开了大断层引起的高承压水和滑坡体问题,虽然投资增加,但经济效益整体好于初选方案。

The route was optimized based on the all-round analysis of the route layout,the fault and the rock property,the construction,the invest-ment and risk analysis,according to the analysis of geological mapping and exploration report on the project area. The optimized route avoided the high pressure and landslide mass produced by large fault. Though the investment increased,the whole economic benefits were better than that of the primary scheme,because risks quantity analysis turned to small.