刘建
摘要:基于隧道排水及其可能来源的水化学信息,利用支持向量机(SVM)技术建立了隧道排水来源识别模型,并分析了垫邻高速铜锣山隧道排水对当地农业生产的影响。结果表明,该隧道排水并未对当地农业生产的主要灌溉水源——清水溪产生影响,而是对一些井泉等辅助灌溉水源影响较为明显,建议有关部门考虑影响区内农业生产用水的供水措施和隧道排水的资源化利用。
关键词:农业生产;支持向量机;灌溉用水;隧道排水
中图分类号:S274.4文献标识码:A文章编号:0439-8114(2012)14-2976-03
Study on the Impact of Water Inrush on Regional Agricultural Production in Tongluoshan Tunnel Area
LIU Jian
(Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China)
Abstract: Support vector machines was introduced to build a model to identify water source of groundwater inrush in tunnel, based on the chemical information of groundwater inrush in tunnel and its possible sources. The impact of water inrush of Tongluoshan tunnel in Dianjiang to Linshui expressway on regional agricultural production was analyzed using this model. The results showed that water draining from Tongluoshan tunnel had no influence on the major source of local agricultural irrigation-Qingshuixi, but severely impacted some supplementary irrigation water sources. Therefore, regarding central water supply for the people who were influenced by tunnel water draining and taking inrush water resource utilization into consideration were recommended for the departments concerned.
Key words: agricultural production; support vector machines; irrigation water; water inrush from tunnel
我国是世界上的农业大国之一,其西部地区的农业生产又是当地的主要经济来源之一。随着我国西部大开发战略的稳步推进,西部山区的隧道工程不仅越建越多,而且越修越长[1]。然而,在改善当地交通环境的同时,山区隧道建设也产生了一系列的环境问题,其中隧道排水影响当地农业生产较为突出,如襄渝铁路中梁山隧道施工期间引起48口泉水被排干,极大地改变了隧址区的人居环境[2];渝怀铁路圆梁山隧道建设导致一定范围内的地下水被排干,直接或间接地影响了当地居民的生活和生产用水[3];渝怀铁路歌乐山隧道施工导致山上6万多居民的生产和生活用水受到严重影响[4]。这些影响不仅容易引发严重的民众纠纷,而且可能形成社会的不稳定因素。以垫(江)邻(水)高速铜锣山隧道(以下简称隧道)为例,通过建立隧道排水来源识别的支持向量机(Support vector machines,SVM)[5,6]模型,分析了隧道排水对当地农业生产的影响,以期为影响区内农业生产用水供水措施的制定和隧道排水的资源化利用提供参考。……