Technical And Quantitative Evaluation Of The Efficiency Of Ecological Engineering System For Slope Protection

In some project construction, the nature vegetation is always destroyed and there are many naked slopes. These slopes are eroded, weathered. Water loss and soil erosion, external local landslide happen often. The ecological system of slope protection cannot resume in three to five years or longer. The traditional slope protection technologies, such as placed stone revetment, placed stone revetment by slurry, plastering by lime-soils, bolt-spray supports and turf singly, can not resume nature vegetation, make against to protect ecosystem balance. What's more, in heavy rain and hard rock erosion areas, the traditional slope protection technologies can not guarantee the compatibility between engineering materials and rock or soil on slope, the structures are always destroyed. On the other hand, the traditional slope protection technologies are expensive. So they are not often applied.With the development of the demand of ecosystem protection, the ecosystem resumption question for the naked slope is recognized increasingly. Europe and America developed countries pay much attention to entironment question of slope engineering. In Japan, vegetation slope protection is the preferred method for slope protection. In our country, there are respectable tests and application attempt about vegetation slope protection. All the tests show that vegetation slope protection is economical and feasible. But single vegetation slope protection is only fit to gently soil slope. It is not fit to rock slope and steeper slope. Because the rock slope can not provide enough nourishment and steeper slope has rapid upper flow, vegetation is washed out easily and the ecological system is hard to set up.The thesis puts forward a new technology for slope protection of ecological engineering. That is the anchoring with three-dimensional geotextile and multiplex vegetation. This technology can solve above problem effectively. This technology can prevent landslide on rock slope, provide ecological entironment for vegetation's growing, better sight seeing of ecological entironment, advance consistency and local stability, reduce project cost. It is fit the development of slope engineering and has wide application foreground.Based on ecological slope protection engineering in Yonghu high water revel pooland aqueduct section in Dongjiang water source project in Shenzhen City, the thesis discusses the basic theory, practice method and Quantitative Evaluation of the Efficiency of ecological slope protection.