某桥涵隧道工程水土流失影响因素分析

Analysis of the Influencing Factors of Soil and Water Loss in a Bridge and Culvert Tunnel Project

某桥涵隧道建设工程项目全线位于某水库区及上游国家级水土流失重点预防区范围内。根据项目区水土保持基本情况分析,对无法避让丹江口库区及上游国家级水土流失重点预防区的,通过采用最高标准北方土石山区一级标准、提高植物措施标准等方式予以解决。文章通过对水土流失可能造成的危害性以及水土流失影响因素等进行分析,选用大开挖地段采用桥梁或隧道的形式布设,最大程度减少了地表扰动。工程施工过程中结合周边生态环境提高弃渣场植物措施标准,以减少项目建设造成的新增水土流失。

The whole line of a bridge and culvert tunnel construction project is located in a reservoir area and the upstream national key soil erosion prevention area.Based on the analysis of the basic situation of soil and water conservation in the project area,for areas where it is impossible to avoid the Danjiangkou Reservoir Area and the upstream national key prevention area for soil and water loss,it can be solved by adopting the highest standard of the first level standard for northern soil and rock mountainous areas and increasing the standard for plant measures.The article analyzes the potential hazards and influencing factors of soil erosion.In sections with extensive excavation,bridges or tunnels are used to minimize surface disturbance.During the construction process,in combination with the surrounding ecological environment,the standards for plant measures in the waste disposal area are improved to reduce the new soil erosion caused by project construction.