应用模糊数学理论定量评判宁淮高速公路老山隧道路面选型

Application of Fuzzy Mathematics Theory in Quantitative Evaluating and Selecting Pavement Type of Laoshan Tunnel on Nanjing-Huai'an Expressway

由于隧道具有特殊的工作环境和复杂的交通状况,选择适合的路面结构类型非常重要。但应用传统方法定量评判隧道路面结构类型较困难,导致路面选型主观性较强。结合宁淮高速公路老山隧道实际情况,综合考虑经济合理性、技术可行性、行驶质量、隧道级别等4个影响隧道路面选型的主要因素,应用模糊数学理论中的二级模糊综合评判准则建立数学模型,采取专家咨询法分析路面选型综合影响因素的影响权重,比较了沥青混凝土与水泥混凝土2种常用的路面结构类型在隧道内的适用性,为老山隧道采用沥青路面的定量综合评判提供了理论基础,在一定程度上克服了选择过程的主观因素,使隧道路面类型的选择结果更具有客观性,更具有科学性。

It is very important to choose suitable pavement structure type in road tunnel due to the special tunnel working environment and complicated traffic conditions. However the subjectivity usually cannot be completely avoided in selecting the pavement structure type of road tunnel due to the difficul~ in quantitative judging and selecting the paving layer by conventional method. With consideration of economic rationality, technical feasibility, riding quality and tunnel grade of the Laoshan tunnel on Nanjing-Huai＇an expressway comprehensively, the mathematics model based on two-level fuzzy comprehensive evaluation rule of the fuzzy mathematics theory was established for the tunnel pavement type choice. The weights of comprehensive influencing factors which affect selecting the pavement type were obtained by using the expert consultation method, and then the applicabilities of the asphalt concrete pavement and cement concrete pavement were compared.This provides the theory basis for adopting asphalt pavement in Laoshan tunnel by the quantitative judgment method, which overcomes some subjective factors while selecting pavement type to some extent and makes the choice result more objective and scientific.