重庆市隧道工程地质环境负效应评价体系

System for Evaluating Geological Environment Negative Effect in Chongqing Tunnel Engineering Construction Process

以重庆市隧道工程建设过程中日益凸显的地质环境问题为研究对象,运用层次分析法和专家打分法,通过遴选指标、确定权重构建了综合评价模型,并对重庆市绕城高速玉峰山隧道进行了地质环境负效应评价。根据综合评价分级标准,将玉峰山隧道地质环境负效应分为4个等级,分别为严重区、较严重区、中等区、较轻区。通过调查验证,评价结果与实际情况一致性较好。研究为该评价方法的推广应用奠定了基础。

The geological environment problems which become increasingly prominent in Chongqing tunnel engineering construction process are taken as research objects in this paper. Applying methods of anlaytic hierarchy and scoring by experts,we establish a comprehensive evaluation model by selecting indices and determining the weights of indices. Then,we evaluate the geological environmental negative effect of Yufengshan tunnel of highway-ring around Chongqing; according to the comprehensive evaluation grading standard,we divide the negative effect area into four grades,which are serious area,relatively serious area,medium area and relatively minor area. Through investigation and verification,we found that the evaluation results are basically in accordance with actual situation and the study lays a foundation for the popularization and application of the evaluation method.