污染场地围封阻隔技术研究

Study on Enclosure Barrier Technology of Polluted Site

随着国内城市化的进程,工业企业搬迁后,会遗留部分污染场地,而场地条件多样复杂,对城市未来用地规划带来巨大的安全隐患。现阶段可以对一部分暴露风险高、污染物易迁移、处理起来技术难度大的污染场地,进行围封阻隔施工,其目的是限制污染物的迁移扩散,减少其暴露途径。该文总结了在水平和竖直方向进行场地围封的施工技术,针对性讨论了隔水底板的设计参数,并将工程上止水帷幕的经验参数应用到围封阻隔的施工上,对污染场地工程控制技术具有一定的参考价值。

There are some polluted sites left in China,and the site conditions are diverse and complex,which bring huge potential safety risks to the future urban land planning.At the present stage,a part of the contaminated sites with high exposure risk,easy migration of pollutants and high technical difficulty in treatment can be enclosed and blocked for the purpose of limiting the migration and diffusion of pollutants and reducing their exposure channels.This paper summarizes the construction technology of site enclosure in horizontal and vertical directions,discusses the design parameters of waterproof floor,and applies the empirical parameters of water curtain to the construction of enclosure,which has certain reference value for the control technology of polluted site.