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根据对影响深埋长大隧道突水突泥风险后果的主要方面的分析,得到深埋长大隧道突水突泥风险后果综合评价模型参评指标并构建出评价指标体系;基于改进灰色关联度的权重确定方法或层次分析法,通过专家调查和分析数据确定参评各级指标的权重系数值,并建立评判标准。在此基础上,基于三角白化权函数的灰色评估建立白化权函数,利用灰色聚类理论通过综合聚类系数矩阵得到模糊隶属度矩阵,再利用模糊评价方法评估深埋长大隧道突水突泥风险后果程度,完成深埋长大隧道突水突泥风险后果综合评价模型的构造。最后,结合象山隧道工程实例,对该隧道突水突泥风险后果进行综合评价,结果与象山隧道实际突水突泥情况一致,证明了该评价模型的有效性和可行性。
Based on the analysis of the main aspects that affect the risk of water inrush and mud in the long and large tunnels, the comprehensive evaluation model of risk assessment of water inrush and mud in deep and long tunnels is obtained and the evaluation index system is established. Based on the improved gray relational degree Weight determination method or AHP, through expert survey and analysis of data to determine the level of weight coefficient indicators at all levels of evaluation, and the establishment of evaluation criteria. On this basis, the whitening weight function is established based on the gray evaluation of trigonometry whitening weight function, the fuzzy membership degree matrix is obtained by using the gray clustering theory through the comprehensive clustering coefficient matrix, and then the fuzzy evaluation method is used to evaluate the water inrush The degree of risk consequences, to complete the construction of deep and long tunnel water inrush muddy risk and comprehensive evaluation model of the structure. Finally, combined with the Xiangshan tunnel project example, the risk assessment of water inrush from the tunnel is comprehensively evaluated. The result is consistent with the actual situation of water inrush in Xiangshan tunnel, which proves the validity and feasibility of the model.