瀑布沟水电站淹没区右岸公路边坡综合治理技术

Comprehensive Treatment of Side Slope in Highway of Pubugou Hydropower Station Submerging Area

摘要:

瀑布沟水电站淹没区公路复建工程与该地区移民安置、社会稳定、经济发展息息相关。路基开挖形成的边坡土体疏松、岩石裸露破碎，局部地区还有陡坎和倒悬体，给公路的安全通行带来了巨大障碍。根据该段公路边坡防护要求，因地制宜采用重力式挡土墙、挂网喷锚和格构锚杆等技术措施进行综合整治。介绍了3种措施的技术特点、施工遇到的问题及解决方法。实践证明，三者的有机结合为该区边坡防护建立了可靠的安全保障，为公路边坡的防护积累了新的经验。

Abstract:

The loose soil, broken rocks, scarp and some overhanging structures were caused by the roadbed excavation. According to the requirements of this highway slope protection and local conditions, comprehensive protection measures with gravity retaining walls, shotcrete rockbolt mesh and lattice anchor rod were adopted. This paper introduces 3 technical features, various construction difficulties and the solutions in the construction process. Practice shows that the organic combination of 3 measures established a reliable security guarantee to slope protection in this area and new experience to highway slope protection was accumulated.