Huang Ta (Tao) Highway Of Anhui Province Slope Revegetation Technology Optimization

some rock slopes will be come into being during the process of road construction. In order to meet people's requirement of environment, the objective of dealing with city-road rock slopes is not only to meet the stability of slopes, but also the demands of city's virescence and sighting and the satisfaction of people's living, and so on. Bioengineering protection have been one of crucial technical to deal with rock slopes of urban highways. Because of restriction of geographic area, the reasonable display have to consider comprehensive factors, for example: local climate,soil,topography etc. People's increasing consciousness of environmental protection intend to more new ways for constriction of highways as follow: Reduce destroying of around area, Reduce excavation Slope Ratio .It's more difficult to solve the problem that is too sharp slope, bioengineering protection need to more new creation and optimization.The paper collect foreign and domestic advanced data with bioengineering protection of HTT highway, make a research as follow:For example, At firth , do a investigation of geographic features, climate, plant display, height of steep slope. Make a analysis with foreign and domestic information combined existing bioengineering protection, find two ways of constriction: Thick Layer Base Material and technique with the cotton net plant biological bagSecondly, analyzing technology of material, the peat is non-renewable, has some disadvantages with delivery and price, one of solution is sludge of sewage treatment to instead of peat, this way has two advantages: Saving peat amount, Reducing amount of sludge. One measurement is by indoor experiment to increase proportion of sludge to increase intensity of material, and determine sludge's nutritional components. higher organic content in sludge (24.79%)and higher content of total nitrogen (2.2%) in sludge. the other way is field sampling combined indoor experiment for plant movement. and the obvious effect.Lastly, soil bag instead of cotton net plant biological bag combined indoor experiment, the technology has two steps: first step- stacking ,second step- sowing, by the technology the team can work in the winter to improve working efficiency, Thick Layer Base Material, green technology be used in different situation around highway, specially, to provide technical support in the important point with landscape design.