天目山隧道弃渣场对地表水环境影响分析  

Effect of Tianmushan tunnel waste dump site on the quality of surface water

作　　者：耿伟[1] 付海陆 刘伟[1] 庞伟[1] 曾爱斌[3] 官宝红[4] GENG Wei;FU Hailu;LIU Wei;PANG Wei;ZENG Aibin;GUAN Baohong(Hangzhou Branch of China Railway Tunnel Group Co.Ltd.,Hangzhou 310030,China;College of Quality and Safety Engineering,China Jiliang University,Hangzhou 310018,China;Department of Health and Agrigulture,Hangzhou Wangxiang Polytechnic,Hangzhou 310023,China;College of Environmental and Resource Sciences,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]中铁隧道集团有限公司杭州公司,浙江杭州310030 [2]中国计量大学质量与安全工程学院,浙江杭州310018 [3]杭州万向职业技术学院健康与现代农业系,浙江杭州310023 [4]浙江大学环境与资源学院,浙江杭州310058

出　　处：《中国计量大学学报》2019年第4期411-418,共8页Journal of China University of Metrology

摘　　要：目的:明确毗邻“两江一湖”生态敏感区的天目山隧道3#弃渣场对周围地表水环境的影响。方法:分析流经渣场山体汇水以及下游河道水质变化,分析弃渣重金属组成以及浸出特性。结果:山体汇水中的氨氮(NH 3-N)、总磷(TP)和悬浮颗粒物(SS)流经渣场后有所下降,其中悬浮颗粒物下降76.60%。挡墙泄水中的汞(Hg)、镍(Ni)和铅(Pb)有所增加,而镉(Cd)的浓度下降,砷(As)、铬(Cr)和铜(Cu)的浓度则低于检出限,除Hg和Pb外其他指标都满足地表Ⅲ类水标准。弃渣中Cr和Cu的含量较高,但浸出试验表明多数重金属不易溶出。结论:渣场对污染物有一定截留作用,整体对周围水环境的影响较小。Aims: This paper aims to make sure the effect of the 3# waste dump site of the Tianmushan tunnel, located adjacent to the "Two Rivers and One Lake" ecological sensitive area, on the surface water. Methods: We analyzed the water quality change of the mountain catchment that flew across the dumps as well as the downstream water and analyzed the heavy metal composition and leaching properties of the abandoned ballasts of the tunnel. Results: The concentrations of ammonia-nitrogen(NH3-N), the total phosphorous(TP)and the suspended solid(SS)in the mountain catchment decreased after flowing across the yard;and the SS concentration reduced by 76.60%. The concentrations of mercury(Hg), nickle(Ni)and plead(Pb)in the water from the barricade watercourses increased and the concentration of cadmium(Cd)decreased. The concentrations of arsenic(As), chromium(Cr)and copper(Cu)in the waters before and after the spoil area were below the detecting limits. The water indexes from barricade watercourses met those of class Ⅲ surface water except Hg and Pb. The contents of Cr and Cu in the ballast were relatively high compared with other heavy metals. However, the leaching experiments showed that most heavy metals were not liable to leach out. Conclusions: The tunnel waste dump site behaves certain interception effect on pollutants and has little effect on the surrounding surface water.

关 键 词：计量 高铁 隧道 弃渣 重金属 地表水 

分 类 号：U455[建筑科学—桥梁与隧道工程]