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工程场址评价方法中传统的权重确定方法无法反映多元地学信息之间的复杂关系,影响评价结果的客观公正。为更好地满足大型工程设施选址的需要,将传统多因素相互作用关系矩阵法由常权改进为动态变权并引入工程场址评价,提出工程场址适宜度(ESSI)评价方法和定量评价指标,通过分析影响因素间作用关系及其在不同时空下对系统整体的影响,确定其在系统整体评价中根据实际情况动态变化的变权,根据权重计算工程场址适宜度。将该评价方法应用于中国散裂中子源工程选址工作,使用6个影响因素在5个比选场址中的变权及常权分别评价工程场址适宜度并对比分析,确定第3场址作为工程建设场址。实践证明基于多因素相互作用关系矩阵的ESSI评价方法与指标更具科学性、合理性和实用性,以期为类似工程选址提供参考。
The traditional method of weight determination in engineering site assessment method can not reflect the complex relationship between multiple geosciences information and affect the objective and fair evaluation results. In order to meet the needs of locating large-scale engineering facilities better, the traditional multi-factor interaction matrix method is improved from the normal weight to the dynamic variable weight and the project site evaluation is introduced. The ESSI evaluation method and quantitative By analyzing the relationship between the influencing factors and their influence on the whole system in different time and space, we can determine the variable weights which are dynamically changing according to the actual situation in the overall evaluation of the system and calculate the suitability of the project sites according to the weights. This evaluation method is applied to the site selection of spallation neutron source in China. The paper uses the six influential factors to determine the suitability of construction sites and compares them with the variable weights and the normal weights of the five selected sites. The third Site as a construction site. Practice has proved that the ESSI evaluation methods and indicators based on the multi-factor interaction matrix are more scientific, rational and practical in order to provide references for similar projects.