岩石边坡生态工程中土层变化规律及防护措施探讨

出于景观改善的需要和生态恢复的要求,一些工程形成的岩石边坡需要进行生态恢复.在总结岩石边(斜)坡生态防护方法的基础上,对喷射护坡绿化技术中喷射土层的土壤变化规律进行了探讨.运用物质平衡等原理,建立了边(斜)坡土壤物质平衡不等式,分析了边(斜)坡土壤平衡的所有因素并绘制了生态恢复成功和不成功时边(斜)坡土壤变化规律图,得出了水力侵蚀、地质灾害损失和初始喷层厚度是岩石边坡土层保持的关键因素.最后,提出了保证岩石边(斜)坡生态防护(恢复)工程成功的一些措施.

Change of Soil Layers and Soil Conservation in Rocky Slope Ecological Protection Engineering

To meet the environmental and scenic demands,some rocky slopes in civil engineering need some works on ecosystem restoration.Firstly,the present methods in rocky slope ecological protection engineering are summarized Then,the changes of gunning (or gunniting) soil layer in rocky slope ecological protectionengineering projects are investigated. By using the principle of mass balance and the mult-i subject know -ledge, an inequality for the mass balance of the gunning soil layer on rocky slope is set up, all the factors in the inequality are analyzed, and the figures on the changes of gunning soil layer on rocky slope under different situations are presented. It is found that water erosion,landslip loss,and initial thickness of gunning soil layer are the key factors of soil conservation. Based on the above fact, some measures on how to guarantee the success in rocky slo pe ecological protection engineering projects are discussed. This paper may help the practice of rocky slope ecological protectio n engineering projects in the future.