生态护坡在陕南秦巴山区土地整治中的应用研究

A study on the application of ecological slope protection technology in land consolidation in the Qin-Ba mountains area of southern Shaanxi

陕南秦巴山区属于典型的生态环境脆弱的土石山区,降雨量大,水土流失、滑坡等自然灾害频发。边坡防护是该区域工程建设的重中之重,然而传统的砌石护坡和砼护坡等形式在一定程度上会破坏生态环境,不符合人与自然生态和谐融合理念。在充分考虑生态效益和经济效益基础上,本文以陕南地区商州区土地整治项目为例,首次提出用生态护坡替代传统筑坎方式进行边坡防护,明确了生态护坡工程工艺,选取不同典型剖面分别对挖方田坎、半挖半填田坎以及填方田坎边坡自身稳定性进行验算,提出了采取生态护坡的田坎高度及护坡标准,针对商州区护坡建设过程中的存在问题,探索了下一步加强研究和试验的方向。生态护坡在商洛市商州区腰市镇泉村等五村土地整治项目中的应用,不仅达到了工程和生态效果,且工程投资比传统护坡方式减少近一半,应用潜力巨大。

Qinba mountain area belongs to the soil-rock mountainous areas with a typically fragile ecological environment,where large rainfalls and natural disasters such as soil erosion and landslides would frequently take place.Slope protection is the most important part of the engineering constructions in this region.However,the traditional masonry slope protection and concrete slope protection might destroy the ecological environment to a certain extent,which is inconsistent with the concept of harmonious integration of human and natural ecology.On the basis of fully considering about the ecological and economic benefits,this paper has researched the case of Shangzhou district land consolidation project in southern Shaanxi, which unprecedentedly put forward that ecological slope protection could be used to protect the slope instead of traditional terrace bank method.In the first place,the ecological slope protection engineering technology had been defined according to the actual situation of the project area.Then,different typical sections separately was applied to check the stability of the slopes of excavated,semi-excavated and semi-filled,and filled ridges.The height and standard of which the ridges should use ecological slope protection were put forward.Aiming at the existing problems in the process of slope protection construction in Shangzhou district,the direction of further research and test is explored.The application of ecological slope protection in land consolidation projects of five villages,Shangluo city,not only achieves the engineering and ecological expectations,but also reduces engineering investment by nearly half compared with traditional slope protection methods,which has great potential for application.