输水隧洞洞型综合比选

A comprehensive comparison of water conveyance tunnels with different cavity forms

新疆某长距离输水隧洞工程分布有长距离连续软岩洞段,该段采用复合式衬砌结构,现从过流能力、结构受力和施工条件等方面对该软岩洞段拟定的两种马蹄型断面洞型进行比较,经过分析选取综合方面更优的洞型。

This study is based on the construction of a long-distance water conveyance tunnel project which comprises a long and continuous segment with soft rock. The segment is designed using a composite lining structure. The study compares two types of cavity forms with U-shaped section, from the aspects of discharge capacity, structural force, and execution conditions. This study is aimed at selecting the most optimized cavity form for the real construction work.