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首页> 外文期刊>Canadian Geotechnical Journal >Conceptual hydrogeological model for a landfill in a floodplain environment: case study of the JV Industries and Fairway Landfill, Shxwha:y Village First Nation, Chilliwack, BC
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Conceptual hydrogeological model for a landfill in a floodplain environment: case study of the JV Industries and Fairway Landfill, Shxwha:y Village First Nation, Chilliwack, BC

机译：漫滩环境中垃圾填埋场的概念水文地质模型：以合资企业和航道垃圾填埋场为例，Shxwha：y Village First Nation，卑诗省奇利瓦克

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摘要

The characteristics of floodplains of major rivers are of interest to many shoreline communities due to issues related to flooding, water demand, and land use. Studies of the hydrogeological conditions within these environments can improve our understanding of these settings. The case study of the JV Industries and Fairway Landfill, located within the floodplain of the Fraser River, highlights the complex groundwater flow dynamics in such an environment. In particular, the study examined the potential for substantial changes to both groundwater flow and groundwater quality during or immediately following the spring freshet due to the presence of permeable, extensive, and hydraulically well-connected floodplain deposits. During spring and early summer, groundwater flow across the landfill is controlled primarily by the Fraser River freshet and the direction of flow varies spatially across the site. During the winter, groundwater flow is controlled primarily by regional topography and is directed to the southwest towards the nearest topographic depression, the remnant Coco-oppelo Slough. In the intervening months, the flow directions are transitional between the winter and spring - early summer flow patterns. The changes in the groundwater flow patterns were inferred to temporally affect the groundwater quality downgradient of the landfill.
机译：由于洪水，水需求和土地利用等问题，许多河流社区都对主要河流的洪泛区的特征感兴趣。对这些环境中水文地质条件的研究可以增进我们对这些环境的理解。位于弗雷泽河泛滥平原上的合资工业和航道垃圾填埋场的案例研究突显了这种环境中复杂的地下水流动态。特别是，该研究检查了在春季新生期间或之后，由于渗透性，广泛性和水力联系良好的洪泛区沉积物，地下水流量和地下水质量可能发生实质性变化的可能性。在春季和夏季初，整个填埋场的地下水流量主要由弗雷泽河的新生河段控制，整个地点的流向在空间上会发生变化。在冬季，地下水流量主要受区域地形控制，并被引向西南部，向最近的地形凹陷（剩余的Coco-oppelo泥沼）进发。在随后的几个月中，流量方向在冬季和春季-初夏的流量模式之间转换。推断地下水流型的变化会暂时影响垃圾填埋场的地下水水质下降。

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