施工支洞改建为检修支洞的结构设计与分析.

This paper proposed a new reconstruction method for the reconstruction of the support of the CCS water tunnel in Ecuador. This method avoided the traditional method of adding maintenance gates, reduced the construction difficulty and engineering investment and shortened the schedule. During the maintenance support tunnel could not only retain water during the operation period, but also repair the main tunnel of water conveyance tunnel under the condition that the main tunnel of the water conveyance tunnel was emptied during the maintenance period, and could also serve as a ventilation tunnel for the open water tunnel. The finite unstructured calculation was used for analysis and research, and a set of maintenance channel structure design method was explored, which finally formed a complete set of new methods for reconstruction and repair of the support tunnel. [ABSTRACT FROM AUTHOR]