High Speed Railway Construction Soil Erosionprediction And Prevention Research

The current railway construction process soil erosion prediction and prevention measures have tended to focus on the theoretical design, out of and engineering characteristics of regional ecological environment; combine Design of identity often makes engineering soil erosion prediction and prevention of the prediction and reach good ecological restoration effect. Nowadays, soil erosion prediction lack of resources leads to soil erosion prediction has great limitations and fuzziness, plus railway system soil erosion prevention and treatment of a shortage of this topic information is realistic.Based on the analysis of the current situation of soil erosion in China, summarized the suitable for high-speed railway soil erosion prediction methods for analog erosion modulus method, and the current situation on the basis of investigation and the west into high-speed railway (sichuan section) abandon slag field of soil erosion prediction, the predicted results show that the engineering construction in 3.3 years during high-speed railway (west into within the scope of sichuan section) covers abandon slag field of soil loss prevention area for 17.66×107kg, for 15×107kg new loss total loss,84.94%, abandon slag field area for 281.91hm2, predict rainfall, background and new loss respectively 17.66,2.66,15.00×107kg, the engineering construction in 3.3 years of construction project in west into high-speed railway during (sichuan section) within the scope covers an area of soil loss prevention area for 9.26×107kg, for 7.7×107kg new loss total loss,83.15%, abandon slag field area for 211.54hm2, predict rainfall, background and new loss respectively 9.26,1.56,7.7×107kg, In the natural recovery, prediction units area of the influence of soil loss larger; During construction, soil erosion modulus influence on soil loss larger; From the soil and water loss, the results can be seen in railway construction, soil and water erosion mainly in project construction period, abandon slag field is on the ground of railway project scope large region range disturbance of the water and soil erosion, may cause is larger also, soil erosion type is mainly hydraulic erosion.The results of analysis of soil and water loss prediction guiding west into high-speed railway (sichuan section) abandon slag field and so on, soil erosion prevention measures in design, project feasibility study report soil erosion prevention measures in the design problems, analyses the supplement plan design, including:abandon slag field cut drainage design, retaining wall design, plant measures, temporary measures of soil and water loss, it will not only satisfy the specific requirements and prevention measures to promote the sustainable development of regional ecological environment, to the restoration and improvement of the ecological environment along the railway has practical significance and landscape environment, but also for future railway construction engineering soil erosion prediction and prevention provides referential ideas.