| The purpose of this study is to study the risk management of ballastless track settlement.In the construction site of the rail transit,risk management should be carried out during the multiple implementation process of the project,and the risk of various projects is identified by different levels,and the risk is controlled.Compared with the characteristics of ballast track structure,the structural features of the overall track contain better structural continuity and elastic uniformity,which improves the smoothness of the urban rail structure,and increases the comfort and quality of passengers.Through the different stages of the construction process,the risk situation is subdivided,the risk analysis and evaluation of different parts and successively,the risk values of different risks are determined,and the different risk values are determined in the construction process,and the different risk values are determined by each process.According to the present situation of the risk management record,the risk is reduced to the minimum by using the reasonable risk management method,and the settlement of the ballastless track line is in accordance with the standard and the safety of use.In this paper,the risk management of ballastless track settlement is analyzed by means of literature review,and the principle and application steps of the improved fuzzy analytic hierarchy process(fuzzy analytic hierarchy process)are to change the reciprocal type judgment matrix to the fuzzy consistency judgment matrix,and to combine the line with the line one or the root method with the eigenvalue method,and to put forward the improved fuzziness.Analytic hierarchy process(AHP).Taking the subway line six of a city as an example,through the evaluation results and the risk of settlement under the ballastless track line identified in the evaluation process,the construction enterprises can do a good job of preventing the risk accidents before the work is done,and strengthen the training of risk awareness and safety technology for the personnel of the decision-making level,and establish a more perfect system.Rules and regulations,in the ballastless track settlement risk management under the safety of mechanical equipment loading and unloading,planning material storage sites,from the source of the risk of accident reduction,compared with the start control,the cost will be greatly reduced,and the effect is better.In addition,the purpose of the construction party in the allocation of distribution is more clear,the risk ofsettlement increases and the investment is small,so the investment can be reduced to the most needed place,reducing waste and saving the cost.This paper is mainly devoted to the study of the possibility of the settlement of ballastless track under track traffic and the possibility of its settlement risk,and to study and analyze the relevant experience of the pioneers at home and abroad.The influence factors of the construction process are divided into several parts,and the overall analysis is carried out,and the construction behavior is guided under reasonable conditions.The scientific calculation is provided to ensure the safety and durability of the track,and the application to the actual construction field is decomposed.Through the calculation and deduction of the above parts,the final risk value will be obtained,and the risk value will be taken into the risk probability level standard to confirm it,so as to decide whether to further improve it,and to consider the use of redundant management measures in some core construction parts to strengthen the control of wind risk,so as to ensure the reliability and reduce the risk.The effect of the settlement risk.According to the actual situation of construction and the regularity,possibility and randomness of the risk,we need to implement the risk management in the whole process under the premise of the establishment of the controlled risk management system.In view of the risk of the ballastless track down settlement,we can try to reduce the risk of settlement under the ballastless track and ensure the safety of the operation period.The fuzzy analytic hierarchy process(fuzzy analytic hierarchy process)is used,and the measures and methods of risk coefficient and risk reduction are verified,and the management of the construction process is constantly strengthened to reduce the factors that may cause the deviation,and the settlement is gradually reduced to the standard range,and the stability of the operation period is ensured.In conclusion,this paper provides a relatively simple risk control mode for risk control of ballastless track settlement in China. |
