Application of disturbance index method in soil and water conservation monitoring for Lanzhou-Chongqing Railway Project
Yang Jingwen
Abstract：The intensity of disturbance can be used as the concentrated expression of erosion modulus increment, time of construction disturbance, and eroded areas caused by disturbance in project construction. It is often expressed by disturbance index. The disturbance indices of Lanzhou -Chongqing Railway Project are sorted by number in descending order, i.e. excavation waste dump, construction road, bridge, soil borrowing areas, station, roadbed and construction site, among which the disturbance indices of excavation waste dump, builder's road, bridge are bigger than the average. According to the mean value of disturbance indices, it is found that excavation waste dump, construction road, bridge should be classified as main erosion control areas. The intensity of disturbance caused by construction in ridge earth-rock areas of West Qinling Mountains is higher than that in the loess hilly areas.
Keywords：Lanzhou-Chongqing Railwaymonitoringsoil erosiondisturbance index
Publication Date：2018-05-17
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 52-54 )