Ecological Restoration Technology Of Freeway Cutting Slope And Case Analysis

At present,the state leaders and governments at all levels have paid more and more attention to the protection and restoration of the environmental protection and the ecological environment for which people depend on them.In March 24,2015,the general secretary Xi Jinping held a meeting of the Central Political Bureau and passed the opinion on speeding up the construction of ecological text and Ming.The concept of "Qingshan mountain is Jinshan Yinshan" is written into the central document,which has become an important guiding ideology for guiding China to accelerate the construction of ecological civilization.The green mountain is the development concept of Jinshan Yinshan,which has realized the new promotion of the concept of development.The relevant departments of the state are formulating the environmental protection tax for increasing the income to provide a strong guarantee for the protection and restoration of the ecological environment.It is necessary to protect and restore the ecological environment in all walks of life in a higher level.Because of the complexity of rock quality and slope ratio in highway cutting slope,the choice of ecological restoration technology must be adapted to local conditions,combined with local climate characteristics and local plant conditions to choose the ecological restoration technology.At present,there is no uniform standard for the research on the technology of slope restoration.According to the experience of hosting or participating in the construction management of expressway greening engineering for many years,some suggestions on the ecological restoration of the highway cutting slope are put forward for the discussion and reference of the transportation industry colleagues.In this paper,through consulting the literature of ecological restoration of road slope at home and abroad,this paper analyses and summarizes the general conventional cutting slopes(that is,the slope ratio is slow to 1:0.75,low soil slope or easy weathered rock slope),and the special cutting slope(that is,the steep slope is steep to the 1:0.75,which is slow to 1:0.5,and is not easy to weathering.Or the rock slope with large concave and convex,the vertical cutting slope which is steep to the 1:0.5,even the inverted slope.Based on the combination of basic theory and practical experience,the application range of the main ecological restoration techniques for general conventional cutting slopes,the key points of the quality control of the process flow,and the notices are further summarized.Through the special cutting slope which is the most difficult to carry out the ecological restoration,the innovative technology is carried out and the ecological restoration is carried out quickly.The complex technology is introduced,mainly involving the concept of compound method,hole planting method,strengthening type sprayed substrate planting method,vertical greening method,research applicationprogress and research status.In this paper,an example is used to analyze and summarize and discuss the typical slope of how to quickly carry out ecological restoration and obtain obvious effect on special cutting slope.And promotion;summarized and analyzed the selection,proportioning and seeding scheme of grass,shrub,arbor and flower in different construction seasons.The common ecological restoration techniques used in general conventional cutting slopes and the innovative ecological restoration techniques used in special cutting slopes are proposed in this paper,which are beneficial to the rapid ecological restoration of special slopes,the improvement of the overall proportion of the ecological restoration of the expressway,the more comfortable driving experience for the passengers and the high speed public participation.Road planning,construction and management of the owners,design,supervision and construction units colleagues to provide reference.