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渝湘高速公路洪酉段穿越武陵山区,高边坡多,对沿线生态破坏较大,通过设置棚洞,减少了边坡高度,最大限度地保护了沿线生态环境。主要介绍了棚洞的构造特点、施工工艺以及在洪酉高速路中的应用情况,重点分析了3号棚洞的构造和受力情况,可为今后建设山区环保高速公路提供参考。
The Hongyou section of Yuxiang Expressway crosses Wuling mountainous area and has many high slopes. It greatly damages the ecological environment along the route. By setting the shed, the slope height is reduced, and the ecological environment along the route is protected to the maximum extent. This paper mainly introduces the structural characteristics, construction technology and the application in the construction of Hongyou Expressway, and mainly analyzes the structure and stress of the No. 3 shed. It can provide a reference for the future construction of environmental highway in the mountain area.