基于AHP的地铁隧道防排水型式设计及应用研究

On the AHP-Based Design and Application of Waterproofing and Drainage for Subway Tunnels

对地铁隧道防排水型式进行合理的评价及选择,是减少运营期间隧道渗漏水的有效途径。以往对隧道防排水型式的选择基本上都是采用隧道涌水量这一单一因素进行评价和分析,尚缺乏对排水型式的综合评价系统研究。文章在已有地铁隧道防排水设计研究的基础上,提出基于AHP法的地铁隧道防排水型式判断系统,建立层次分析评价数学模型,确定影响地铁隧道防排水影响因素的层次指标权重,根据建立的防排水型隧道的判断准则及标准,实现防排水型式选择的定量化。工程实例表明,建立的模糊综合评价方法与实际情况相符。由于影响因素的隶属度和权值依赖于评估或经验,其推广应用还需进一步研究并结合实体工程进行验证。

Proper evaluation and correct selection of the waterproofing and drainage types for metro tunnels is an effective way to reduce water leakage during tunnel operation. Regarding selection of waterproofing and drainage patterns, normally a single evaluation factor of water inflow is used for evaluation and analasis instead of comprehen- sive evaluation system. Based on previous studies of waterproofng and drainage of metro tunnels, an AHP-based judgement system for types of waterproofing and drainage is put forward, a mathematical evaluation model of the ana- lytic hierarchy process is established, weights of the hierachy index affecting influential factors of waterproofing and drainage in metro tunnels are determined, and quantification of the types of waterproofing and drainage is achieved with established criteria and standards. Practical cases show that the fuzzy synthetic evaluation method is consistant with the actual situation. Further study and verification are required for this application using a concrete project.