Conservation Measures Small And Medium Reservoir Project Allocation Case In Nanbu County Reservoir Project Of Fan Jia-gou

With the development of Chinese economy, building construction and the production of various types of construction projects cause a lot of soil erosion, the production problems of soil erosion prevention projects payed more and more attention.Existing production and water conservation measures through research projects arrangement and to analyze its soil erosion prevention principle, be arranged and water conservation measures complement its system, the prevention of soil erosion, protect the ecological environment and promote economic development has important practical significance. By studying the layout of soil and water conservation measures of existing production and construction project, analyzing its principle of water loss and soil erosion prevention and control, and compling its soil and water conservation measures arrangement system, we found that the prevention and control of soil and water loss, protecting the ecological environment and promoting the economic construction had important practical significance.In the small and medium reservoir engineering study of configuration of soil and water conservation measures, through the summary and analysis of several similar scale reservoir case, make Fan Jiagou Reservoir in Nanbu county as the breakthrough point, the reservoir project applied to the soil and water conservation measures, water loss and soil erosion prevention and control of zoning, erosion is the main period of time and area, control system design and governance effect, summed up the reservoir engineering general system configuration of soil and water conservation measures. This research main conclusion as follows:(1) Small and medium reservoir project of soil and water conservation measures mainly include blocking slag, precipitation infiltration storage engineering, slope protection engineering, land reclamation engineering, vegetation restoration and construction engineering, temporary protection engineering type, according to the specific conditions and reservoir area by the construction process is different, need to adopt appropriate measures of construction for prevention and control of soil erosion caused by the reservoir.(2) According to the construction characteristics of reservoir engineering and its prevention and control of soil erosion prevention and control of the hub project of zoning can be divided into reservoir area, the reservoir submerged area two primary partitions, reservoir project control area and control area can be divided into hub project, the construction of highway construction production and living area, control area, yard area, slag field control area, temporary stocking yard areas have six each secondary prevention and partition;Reservoir submerged area contains reservoir flood range have a secondary partition.(3) According to the prediction of soil erosion, slag field, yard, hub project is a major area of soil and water loss, construction is the main period of soil and water loss, construction periods are the main factors of influence with the size of the area covers an area of scope, surface disturbance intensity, the length of time span as well as the surface material composition and other factors.(4) The object of study Fan Jiagou Reservoir project in Nanbu county is in the southwest mountainous region, whose soil is given priority with water erosion.soil and water conservation engineering measures taken by the corresponding engineering including land reclamation, stop slag, such as retaining wall, flood control platoon guide engineering (e.g., intercepting drain, grit chamber), slope protection engineering, such as cutting slope open level, etc.);Plant layout mainly is the vegetation restoration and construction, according to the local site conditions to select the appropriate local soil and water conservation function tree (grass), according to the block or ribbon mixing plant; Temporary measures mainly involves the temporary LanDang bag (such as soil retaining wall), temporary drainage (such as a soil drainage, temporary grit chamber), temporary film covering, such as geotechnical non-woven fabrics, plastic striped cloth cover), temporary measures such as sowing seed plants, slag, yard, is obtained and construction of highway hub area such as the control measures of severe soil erosion area layout is most closely.(5) Through the implementation of various prevention treatment design partitioning, combined with the comparison value to achieve the national standard value of six governance indicators of soil erosion, soil erosion control and Fan Jia-gou Formation reservoir project results to meet control standards, and water conservation measures prove project layout more reasonable, soil erosion can be caused by the construction of the project can play a better deterrent effect, it can be a reference for other Reservoir project.