为防止隧道施工引起地下水环境恶化,将环境负效应评价体系应用于云南洱海东侧引水隧道工程中。利用AHP层次分析法对环境负效应体系各项指标选取适宜的指标权重,对实例地质条件以及水文地质条件等的分析,并采用模糊综合评判法对洱海东侧引水隧洞工程进行地下水环境负效应评价。评价结果表明:大理某引水隧道在经过萂村段时,造成的地下水环境负效应为Ⅳ级,隧道两侧约5 000 m内将出现地下水位下降,并伴随出现一定范围的地面塌陷和岩溶塌陷,以及明显的地表水系流量减少和井泉点枯竭。研究成果可为该引水隧洞的施工及设计提供参考。
Abstract
In order to prevent negative effects of tunnel construction on groundwater environment, we applied an evaluation system to a diversion tunnel project located near the east of Erhai Lake in Yunnan. On the basis of analysing the geological and hydrogeological conditions, we employed analytic hierarchy process (AHP) and fuzzy comprehensive evaluation method to select appropriate index weight and evaluate negative effects on groundwater environment. Results show that when the tunnel goes through Hecun segment of Dali, negative effects of level IV within 5 000 m on both sides of the tunnel and decline of groundwater are caused by tunnel construction. Ground subsidence, karst collapse, obvious surface flow reduction, and wellspring depletion will also take place. The research results offer reference for the construction and design of the diversion tunnel.
关键词
云南洱海 /
隧道建设 /
地下水环境负效应 /
AHP层次分析法 /
指标权重 /
模糊综合评判法
Key words
Erhai Lake in Yunnan /
tunnel construction /
negative effects on groundwater environment /
AHP /
index weight /
fuzzy comprehensive evaluation method
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参考文献
[1] PO?LUK E. Underground Water Problem in Ankara-Istanbul High Speed Railway Construction Tunnel No:36 [C]∥ International Society for Rock Mechanics. Proceedings of ISRM International Symposium-EUROCK 2012, Stockholm, Sweden, May 28-30, 2012:12.
[2] VINCENZI V, GARGINI A, GOLDSCHEIDER N. Using Tracer Tests and Hydrological Observations to Evaluate Effects of Tunnel Drainage on Groundwater and Surface Waters in the Northern Apennines (Italy) [J]. Hydrogeology Journal, 2009, 17(1):135-150.
[3] SJOLANDER-LINDQVIST A. Local Identity, Science and Politics Indivisible: The Swedish Wolf Controversy Deconstructed [J]. Journal of Environmental Policy & Planning, 2008,10(1):71-94.
[4] 李 国,杜 欣,曾亚武.隧道与地下水环境相互影响分析[J].中国水运,2008,9(9):263-265.
[5] 刘 建,刘 丹.岩溶隧道地下水环境负效应评价理论与实践[M].北京:中国环境出版社,2013.
[6] 虎维岳.矿山开挖与环境负效应[J].煤炭学报,1998,10(5):513-516.
[7] 田 婧, 韩 秀.工程地质环境评价方法[J].河北理工大学学报, 2007, 29(1): 125-128.
[8] 李士勇.工程模糊数学及应用[M]. 哈尔滨:哈尔滨工业大学出版社,2004.
[9] 谭继中,谭继泽.云南断陷盆地浅循环岩溶水赋存规律初步研究[J].地质与资源,2003,12(2):91-96.
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