| The healthy and stable operation of the mine ventilation system provides a guarantee for coal mine safety production.Scientific and reasonable comprehensive evaluation of the mine ventilation system is an important basis for optimizing and adjusting the ventilation system,and there is still no recognized comprehensive evaluation index system and method.At present,there are problems in the comprehensive evaluation of mine ventilation systems,such as inadequate determination of indicator systems,inaccurate calculation of weight values,and difficulty in maintaining weights.Therefore,this thesis conducts research on the comprehensive evaluation model and weight determination method of mine ventilation systems.Inspired by the process of constructing multi-indicator evaluation models using hierarchical analysis method,a multi-angle and multi-dimensional comprehensive evaluation model was proposed by combining the idea of classification.Based on the theoretical research results,the OOCI comprehensive evaluation index system in the field of mine ventilation is constructed and a set of software for the comprehensive evaluation system of mine ventilation is developed by combining the flexibility of the expert scoring method with the idea of ranking the importance of indicators in the sequential relationship analysis method and constructing the expert ranking index assignment method.The following conclusions were obtained through the study:(1)Based on the principles of operability,quantification,comparability,and implementability,a comprehensive evaluation model from multiple perspectives and dimensions is proposed.This model overcomes the shortcomings of Analytic Hierarchy Process and achieves comprehensive reflection of the evaluated object from multiple perspectives and dimensions.(2)Based on the sequential relationship analysis method,expert scoring method and index assignment method,the expert ranking index assignment method is constructed to determine the evaluation index weights.The weight determination method does not require the construction of judgment matrix,is easy to operate,can achieve rapid determination and maintenance of evaluation index weights,and reduces maintenance costs.(3)Based on a multi angle and multi-dimensional comprehensive evaluation model,an OOCI comprehensive evaluation index system in the field of mine ventilation was constructed.This indicator system comprehensively reflects the comprehensive situation of the mine ventilation system from multiple perspectives and dimensions,captures the main factors,and ensures the comprehensiveness and credibility of the comprehensive evaluation.(4)A comprehensive evaluation system software for mine ventilation has been developed based on the architecture pattern of front-end and back-end separation.Based on the research results of the theoretical part,a detailed requirement analysis was conducted on the functions that need to be implemented in the comprehensive evaluation system of mine ventilation.In terms of design and implementation,multiple evaluation index systems were quickly constructed through "drawing",and the software has good universality and scalability.This thesis contains 40 figures,32 tables and 83 references... |
