The ISSMGE Kerry Rowe Lecture: The role of diffusion in environmental geotechnics1
The ISSMGE Kerry Rowe Lecture: The role of diffusion in environmental geotechnics1
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DOI：
10.1139/cgj-2013-0277
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发表时间：
2014-03
影响因子：
3.6
通讯作者：
Charles D. Shackelford
中科院分区：
文献类型：
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作者：
Charles D. Shackelford
污染物的扩散可以在环境岩土工程领域中遇到的许多应用中发挥重要的作用，如果不是主导作用的话。本文的目的是概述扩散在此类应用中所起的重要作用。介绍从历史的角度出发，首先在1970年代末至1980年代初认识到，扩散可能是评估污染物通过废物遏制应用中低渗透性屏障的迁移的一个重要过程。使用文献中的数据和简化的模型模拟来说明在什么条件下扩散是重要的，并针对不同的屏障组件和在废物遏制应用中使用的屏障类型来说明扩散的重要性。考虑的屏障包括天然粘土、压实粘土衬里、土工膜、土工合成粘土衬里、复合衬里、垂直防渗墙、污染沉积物的水下盖板以及高度...
Diffusion of contaminants can play a significant if not dominant role in many applications encountered within the field of environmental geotechnics. The objective of this paper is to provide an overview of the important role diffusion plays in such applications. The presentation proceeds from a historical perspective, beginning with the recognition in the late 1970s to early 1980s that diffusion may be an important process in assessing contaminant migration through low-permeability barriers in waste containment applications. Data from the literature and simplified model simulations are used to illustrate under what conditions diffusion is important, and the significance of diffusion is illustrated with respect to different barrier components and types of barriers used in waste containment applications. The barriers considered include natural clays, compacted clay liners, geomembranes, geosynthetic clay liners, composite liners, vertical cutoff walls, subaqueous caps for contaminated sediments, and highly...