Design Of Soil And Water Conservation Of The Shenmu-Dianta First-class Highway

Ecological administration work of the modern soil and water conservation is not only control soil erosion simply, the more is focusing on the environment landscape planing, based on the soil and water loss administration, Improve the land utilization, increase the green area and realize the regional ecological environment improvement. In this article, through analyzing the area of Shenmu-Dianta shop level of highway, the road soil erosion control measures in the design, The design results are as follows:1. Line engineering areas prevention measures and design: on the prevention and control measures, use the combined method of biological measures and engineering measures, biological measures included in the line on both sides of the green turns the soil, on both sides of subgrade slope excavation and build shelter forest, temporary pile soil subgrade unsoiled field planting design and so on, to build shelter forest and planting grass in plant configuration according to the local climate, soil and other factors, in the form of Lin bringing plant community to build a relatively stable plant community. in line engineering areas carefully and configuration, pay attention to match the seasonal plants and evergreen plants, match the plant height, match the economic and non-economic plants, reasonable layout forms a line engineering areas vegetation restoration and ecological communities; Engineering measures including the roadbed and cutting the unsoiled temporary blocking protection measures, bridge foundation excavation of soil and mud protective measures, using artificial reality, fiber bag, sack of retaining retaining wall and measures to defend the net cover, and designed the mud settling pool, prevention and control of wind erosion and water erosion of soil and water loss.2. Take spoil areas prevention measures and design: earth-fetching area all around airport slope instability, prone to collapse landslide soil and water loss, such as adopting design cutting slope, pit is flat and artificial take temporary protection engineering measures, such as games and the removal of platform and the temporary pile soil by afforestation design, grass planting, according to the site conditions, afforestation plan in hilly-gully region and wind sand area; Soil is an artificial reshaping landscape, to restore the original ecological environment, to take sides leveling turns the soil, the soil field and soil engineering measures such as drainage design and the final platform combining biological protective measures such as afforestation grass.3. Construction production site prevention measures design: production distribution in the mainline road on both sides of the field, in the construction period, due to mechanical and human activities frequently, inevitably aggravated soil erosion, so to take at the end of the construction of occupied land clearing, fill in the concave, smooth, and the construction production design measures such as afforestation grass protection of living quarters. Design take l. chinensis, cover with alkali grass, grass planting alfalfa hybrid approach, reasonable layout, the original ecological recovery site.4.Construction road area control measures design: the major biological control measures for protection, grass planting design, because the original original covers the types of grassland, at the end of the construction, the construction road ploughing up timely, rake, and chinensis, cover with alkali grass, such as alfalfa psammophyte reasonable layout, restore the original vegetation types, to prevent soil erosion.5. Benefit analysis results: tower of shenmu shop level highway soil and water conservation measures have significant ecological benefits, economic benefits and social benefits. Since the implementation of soil and water conservation measures for highway construction to effectively control soil and water loss, construction production at the same time reduce the original ground water loss and soil erosion, has obtained the good ecological benefit; Roadbed design on both sides of the embankment diamond frame protection and drainage engineering, the design of retaining wall and soil field and drain, and effectively reduce the harm of flood and sediment, planting suitable Lin Caozhong along the road, not only reduce the water loss and soil erosion, ecological restoration, and significantly improve land productivity, improve the land use structure, to promote coordinated development of the local Lin Muye. Soil and water conservation engineering measures and biological measures, forming the complete protection system, to ensure the safety of highway operating, played an important economic and social benefits.