Applying the AHP-FUZZY method to evaluate the measure effect of rubble roadbed engineering in permafrost regions of Qinghai-Tibet Plateau:a case study of Chaidaer-Muli Railway

作者：Wei Cao,Yu Sheng,Ji Chen,JiChun Wu

摘要：This article attempts to investigate the measure effect of rubble roadbed engineering in permafrost regions of Qinghai-TibetPlateau.As a case study,Chaidaer-Muli Railway is used to evaluate the measure effect of rubble roadbed engineering inpermafrost regions.The AHP(Analytic Hierarchy Process)method is thus employed to establish the evaluation indicatorsystem.The evaluation factor is selected by analyzing the mutual relation between the permafrost environment and roadbedengineering.Thus,a hierarchical structure model is established based on the selected evaluation indices.Each factor isweighted to determine the status in the evaluation system,and grading standards are built for providing a basis for the evaluation.Then,the fuzzy mathematical method is introduced to evaluate the measure effect of rubble roadbed engineering inpermafrost regions along the Chadaer-Muli Railway.Results show that most of the permafrost roadbed is in a preferablecondition(b)along the Chaidaer-Muli Railway due to rubble engineering measures.This proportion reaches to 86.1%.Theproportion in good(a),general(c)and poor states(d)are 0.0%,7.5% and 6.4%,respectively,in all the evaluation sectionsalong the Chaidaer-Muli Railway.Ground-temperature monitoring results are generally consistent with AHP-FUZZY evaluationresults.This means that the AHP-FUZZY method can be applied to evaluate the effect of rubble roadbed engineeringmeasures in permafrost regions.The effect evaluation of engineering measures will provide timely and effective feedbackinformation for further engineering design.The series of engineering measures will more effectively protect permafroststability.

發文機構：State Key Laboratory of Frozen Soil Engineering

關鍵詞：measureEFFECTevaluationRUBBLEROADBEDENGINEERINGpermafrostregionsofQinghai-TibetPlateauAHP-FUZZYmethodChaidaer-MuliRAILWAY

分類號： P[天文地球]