img

Wechat

Adv search

Journal of Desert Research ›› 2021, Vol. 41 ›› Issue (2): 75-82.DOI: 10.7522/j.issn.1000-694X.2020.00132

Previous Articles     Next Articles

Fuzzy comprehensive evaluation of railway sand control engineering scheme

Yuxiang Gao1(), Xiaofeng Dong2(), Feng Han3   

  1. 1.School of Civil Engineering /, Beijing Jiaotong University,Beijing 100044,China
    2.School of Architecture and Design, Beijing Jiaotong University,Beijing 100044,China
    3.College of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China
  • Received:2020-10-17 Revised:2020-12-25 Online:2021-03-20 Published:2021-03-26
  • Contact: Xiaofeng Dong

Abstract:

Wind sand disaster is the main factor threatening the safe operation of desert railway. Sand control engineering designed scientifically and reasonably can reduce the wind-sand damage and protect the ecological environment. But at present, there are few evaluation methods of the sand control engineering. In order to make the scheme evaluation of sand control engineering more practical and scientific, on the basis of analyzing the influencing factors of engineering design, the factors are divided into engineering factors and geographical environment factors. The fuzzy evaluation model of railway sand control engineering is established by using the main influence factors that have been extracted. Combining the index scale method with the interval scale method, the weight of every factor is calculated by the improved analytic hierarchy process. The membership of a single evaluation object to the evaluation set is determined first, and the single factor evaluation matrix is established. Then, the evaluation value is calculated by fuzzy comprehensive evaluation matrix to realize the scheme evaluation. Taking a sand control project of the Dunhuang-Golmud railway as an example, the above method is verified by a case study. The results show that this method can be applied to the scheme evaluation of railway sand control engineering, and the evaluation results are basically consistent with the actual situation of the engineering, which has certain rationality and engineering application value.

Key words: sand control engineering, railway, fuzzy comprehensive evaluation, improved analytic hierarchy process, membership

CLC Number: