隧道施工引起的地下水环境负效应评价体系研究

为了量化隧道施工引起的地下水环境负效应,构建一套科学完善的隧道工程地下水环境负效应评价体系。根据《铁路工程水文地质勘察规范》(TB/10049-2014)及相关文献,建立隧道工程地下水环境负效应评价的层次模型,考虑到隧道工程地下水环境负效应评价中信息的不确定性、未确知性,建立评价指标与地下水环境负效应间的未确知测度模型,结合AHP法求出的各指标权重,求出多指标加权综合测度,从而得出基于未确知测度理论的评价模型。最后利用某工程实例对该评价体系加以验证,并将评价结果同模糊综合评价法的评价结果进行比较,验证了该评价体系的可靠适用性。

Study on the evaluation system of negative effect of groundwater environment caused by tunnel construction

In order to quantitatively reflect the impact of tunnel engineering on groundwater environment, a set of scientific and perfect evaluation system of negative effect of groundwater environment in tunnel engineering was constructed. According to Hydrogeological Survey of Railway Engineering (TB/10049-2014) and the related literatures, we established a hierarchy of tunnel project of groundwater environment negative effect evaluation model. By considering the uncertainty and unascertainty of the tunnel project of groundwater environment effect evaluation in the information, establishing evaluation index and the effect of groundwater environments, combining the unascertained measure model with AHP method to calculate the index weight, and calculating the multi-target weighted comprehensive measures, this study obtained the evaluation model based on the unascertained measure theory. Finally, an engineering example was used to verify the evaluation system, and the evaluation results were compared with the results of fuzzy comprehensive evaluation method to verify the reliability and applicability of the evaluation system.