The Design Of Soil And Water Conservation Scheme Of Power Transmission Project In Shaanxi Province

Under the "western development" policy guidance, the power grid constructions inShaanxi Province has made great progress, it has a very important role to the economic andsocial development of Shaanxi Province. At the same time, the construction of powertransmission project will inevitably disturb the original topography and damage vegetationand soil structure, Therefore caused a certain amount of soil erosion. With the target of gridconstruction that is "creating the eco-type power transmission project", soil and waterconservation technology for power transmission programs not only implement both nationalsoil and water conservation laws and regulations concrete manifestation but also controlpower transmission project construction effective way to prevent soil erosion.Power transmission project is typical of point or line engineering. Substationconstruction projects are point projects whereas construction of transmission lines is linearproject. The time of water and soil loss mainly centralize period of project construction.Manysubstation area excavation, leveling and basic processing, transmission lines tower foundationconstruction, engineering construction, sidewalk construction, the stretch field layout andother activities brings their erosion characteristics over time and space changes. This paperadopts a comprehensive analysis method as well as a typical example analysis to analyze theconstruction of water and soil loss in origin, characteristic and its influence factors for powertransmission project of Shaanxi province, moreover described the power transmissionengineering principles and methods of soil conservation monitoring. Meanwhile according toregional climate, topography, soil, vegetation, water, hydrological sediment and other naturalcondition characteristics, from an area of transmission project, volume of earth and stoneand the main project soil and water conservation programs comparison as well as mainly soilconservation monitoring. Combining power transmission project responsibility erosioncontrol and prevention district, and then considering the socio-economic conditions ofShaanxi Province divided into three types of ecological recovery mode on transmissionengineering soil and water conservation, that is, Sand hills and Loess Plateau in northernShaanxi, Guanzhong Plain area and Southern Rocky Mountain Area. Based on these, proposing the system for the prevent construction of power transmissionproject include engineering measures, plant measures and provisional measures, Combiningthe characteristics of different areas of construction engineering, establishing system ofconstruction control measures on soil and water conservation district. Under rehabilitationcondition, sowing seeds of slash recovery program predict the soil erosion amount of typicaltower bit in Shaanxi. Through the power transmission line and substation project floor areas,the volume of earth and stone estimation and typical tower founder analysis and predict,assessing quantitatively the effect of soil and water conservation management of powertransmission project and other erosion control measures.This study has a guiding significance for soil and water conservation measures selectionand even for preventing programming of power transmission projects. It not only promotesthe development of soil and water conservation technology for power transmission project,and also has a certain reference significance of water conservation measures to other similarprojects.