摘要
随着生态文明建设的逐步贯彻,工程项目对弃渣场提出了复耕或复绿的生态恢复要求。在铁路项目建设中,弃渣堆存过程中若不采取有效的工程防护措施和植物措施,将产生水土流失等不良后果。部分工程中存在以隧道形式穿过富含石膏、芒硝、氯盐等盐岩地层的情况,含盐弃渣场堆放后完全暴露在地表,日晒雨淋,表层渣土风化开裂甚至析出板结,形成白色视觉污染,同时也让生态恢复变得极为困难。本文以骄子山隧道含盐弃渣场为依托,应用阻隔蒸发等方法,对含盐渣场进行生态恢复,实现复绿。研究成果对类似区域内含盐弃渣场生态恢复工程有一定指导意义。
In line with the progressive implementation of ecological civilization construction,there come new requirements on construction projects for ecological restoration of spoil sites through reclamations or greening.As far as railway construction is concerned,if no effective engineering protection measure or vegetation measure is taken during the disposal of spoil,consequences such as soil erosion may ensue.Some projects involve tunneling through strata rich in gypsum,mirabilite,chloride salts,among others,leading to spoil sites with high salt content.When left exposed on the surface,these spoils undergo weathering and cracking under sun and rain,sometimes resulting in the crystallization and hardening of the surface layer,creating a stark white visual pollution and rendering ecological restoration extremely challenging.This paper,taking the Jiaozishan Tunnel’s saline spoil site as a case for study,applied methods including evaporation barriers to restore the saline spoil heap ecologically,achieving revegetation.The study findings provide instructive implications for restoration of similar saline spoil site.
作者
曾刘毅
刘彬
唐立明
ZENG Liuyi;LIU Bin;TANG Liming(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China)
出处
《高速铁路技术》
2025年第3期86-90,共5页
High Speed Railway Technology
关键词
弃渣场
生态恢复
土壤盐渍化
阻隔蒸发
spoil site
ecological restoration
soil salinization
evaporation barrier
