摘要
阿尔塔什水利枢纽工程大坝下游右岸为高度超过百米的高边坡,为确保1 号深孔泄洪冲砂隧洞出口及生态厂房后边坡的稳定性,文章首次引入柔性钢架棚洞设计理念,通过在高边坡中部的3-1 号路平台处架设钢架棚洞,采用钢桁架结构与柔性防护网组合而成的结构设计形式,实现了水利工程高边坡下行车通道的安全性.通过柔性钢架棚洞的设计与实施,验证了该项设计方式的防护效果,保证了深孔泄洪冲砂洞出口及生态电站的安全性,提高了上坝交通运行使用的安全性.文章研究成果,为水利枢纽工程高边坡防护提出了新思路,为后续类似工程运用提供了理论依据及实施经验.
Abstract
The downstream right bank of the Altash Water Conservancy Project dam features a high slope exceeding a hundred meters in height.In order to address the stability of the outlet of the No.1 deep-hole flood discharge sand flushing tunnel and the eco-power plant's rear slope,this paper introduces the concept of a flexible steel-structure shed tunnel for the first time.By constructing a steel-structure shed tunnel at the 3-1 road platform in the middle of the high slope,a structural design combining a steel truss and flexible protective netting is implemented,ensuring the safety of the downward traffic passage in the water conservancy project's high slope.The design and implementation of the flexible steel-structure shed tunnel have been validated for its protective effectiveness,ensuring the safety of the outlet of the deep-hole flood discharge sand flushing tunnel and the eco-power station while improving the safety of traffic operations on the dam.The research findings in this paper offer a new approach to slope protection for water conservancy hub projects and provide theoretical basis and practical experience for similar future applications.
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