水库防汛通道路堤边坡的分区治理

Zoning Treatment of Embankment Slope of Reservoir Flood Control Channel

水库库区在建设中会受到暴雨蓄水淹没等一系列问题,路基工程定期检查地灾治理非常重要。文章以大水坑水库建设中暴雨导致的进库建设路堤损毁修复工程为例,针对进库道路现有的工程损毁问题和地质灾害条件,探讨分析路基边坡整治及护坡过程中护坡形式的支挡方案和护坡方案选型问题,对5#、6#、7#边坡垮塌分段提出了采用路堤挡墙修复、贴坡式路肩支挡、重力式素混凝土路堤挡墙和干砌石修复支挡防护体系,坡面采用格宾网石和挂网喷混凝土的方案,并重点对5#和7#滑坡的挡墙稳定性进行计算分析,计算结果表明:对于地质状况不同的路基段,因地制宜采取合理护坡形式以及断面,实现了库区防汛通道安全稳定和美化绿化生态的多重作用。

During the construction of the reservoir area,there will be a series of problems such as rainstorm,water storage and inundation.It is very important to regularly check the subgrade works for disaster management.In this paper,taking the embankment damage and restoration project caused by heavy rain in the construction of large reservoir as an example,in view of the existing engineering damage problems and geological disaster conditions of the road into the reservoir,the retaining scheme of slope protection form and the selection of slope protection scheme in the process of subgrade slope improvement and slope protection are discussed and analyzed.A plan has been proposed to repair the collapsed sections of slopes 5t,6t,and 7"using embankment retaining walls,sloping shoulder support,gravity type plain concrete embankment retaining walls,and dry masonry repair support protection systems.The slope surface adopts gabion mesh stones and hanging mesh shotcrete.The paper also focuses on the stability calculation and analysis of the retaining walls for landslides 5 and 7t.The calculation results show that:For the subgrade section with different geological conditions,the reasonable slope protection type and section should be adopted according to local conditions,so as to realize the safety and stability of flood control channel in the reservoir area and beautify the greening ecology.