Application of Remote Sensing in the investigation and analysis of activity of Geologic Disasters along Railways
Zhuo Baoxi, Cheng Yuzhang, Pan Zhongren, Cao Linying, Li Hongmiao, Li Haimin
Shanxi Remote Sensing Centre, Taiyuan, China
Professional Design Institute, Ministry of Railway of China
Beijing, China
Xu Hong, Ma Rongbing
Southwestern Jiaotong University, China
Abstract
Geologists of Chiinese railway departments have done a lot of work using remote sensing technology to prevent and cure railway engineering geologic calamities and achieved a good result and obtained valuable information about railway engineering geologic disaster. This paper describes the necessity of using remote sensing to investigate geologic conditions, along existing railways taking some sections of Long-Hai, BaoCheng and Cheng-Kun railway as examples and explains some methods using remote sensing to investigate and analyse the conditions of geologic disasters such as landslide, clooapse and mud-rock flow with the result we have made. The advantages of using remote sensing in the investigation and analysis are showed convincingly in the paper by means of reliable data and real example of remote sensing image interpretation.
Introduction
It is well known that the railway traffic is economic main lifeline in our country. But it often happens that railway traffic is held up due to geologic calamities every year, which cause enormous econo2mic losses.
During the treatment of railway engineering geologic disaster the first thing is only to clearly investigate the condition of the disasters which may effect railway safety before they can be treated perpectly. Because the railway lines in China are tens of thousand kms long, the traditional method alone obviously can not carry out such investigation. Fourtunately remote sensing technology can provide us a useful means for the purpose indeed.
