XU Yuqing, HE Jicheng. Spatial and Temporal Characteristics of Debris Flow of China Railways in 1951-1996[J]. Bulletin of Soiland Water Conservation, 2016, 36(1): 337-342.
DOI:
XU Yuqing, HE Jicheng. Spatial and Temporal Characteristics of Debris Flow of China Railways in 1951-1996[J]. Bulletin of Soiland Water Conservation, 2016, 36(1): 337-342. DOI: 10.13961/j.cnki.stbctb.2016.01.060.
Spatial and Temporal Characteristics of Debris Flow of China Railways in 1951-1996
[Objective] The objective of this study is to analyze the temporal and spatial distributions of debris flow of China railways in order to provide basis for debris disaster prevention of China railway. [Methods] Based on the debris flow disaster data of China railway during 1951—1996
the frequency
spatio-temporal distribution and their dynamic characteristics were analyzed. [Results] During the period of 1951—1996
there were 17.5 times debris flow disaster events each year in China railway
and among them
3.8 times were serious debris flow disaster events. The most serious debris flow disaster events occurred in the year of 1964
1979 and 1981. The debris flow disasters mainly took place from June to August(account for 90%)
and August was the peak season(account for 40.2%). As to the regional distribution of debris flow disasters of China railway
the disasters mainly occurred in Southwest
Northwest and North China. The most disaster events occurred in Longhai line
and followed by the Dongchuan
Chengkun and Baocheng lines. [Conclusion] Debris flow disaster is the result of various internal and external factors. Except for factors such as heavy rain
bad terrain and geological conditions
human activities are the main causes for debris flow disaster.