偏桥水电站引水隧洞施工全过程离散单元法仿真模拟研究

The simulation study for the whole process of Pianqiao hydropower diversion tunnel construction with the discrete element method

为保证偏桥水电站引水隧洞K2+010-K2+310地段的隧洞稳定及基于工期紧的考虑,对该段隧洞的支护结构进行了优化设计。本文采用国际上广泛应用的离散单元法程序UDEC,对该引水隧洞施工运营全过程进行了仿真模拟,达到对其支护结构设计进行检算之目的,同时探讨了隧洞施工和运营全过程的离散单元法仿真技术。

In order to assure the diversion tunnel stability at the segment of K2＋010 -- K2＋310 of Pianqiao Hydropower Station and based on the consideration of the tight construction period, the tunnel shoring structures design is optimized. In this paper, the discrete element method which is used widely in the world is applied in simulating the whole process of the tunnel operation, and got the target of checking the shoring structure design, in the same time the discrete element method simulation technology is discussed.