An analytical solution to the problem of seepage into counterfort drains
An analytical solution to the problem of seepage into counterfort drains
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DOI：
10.1139/t84-072
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发表时间：
1984-11
影响因子：
3.6
通讯作者：
E. Bromhead
中科院分区：
文献类型：
--
作者：
E. Bromhead
最近，j·n·哈钦森收集了有关堑壕和防壕排水沟的设计和性能的数据。本文提出了其中一种情况的解析解，即渗透到一层土壤的整个厚度，直至它所处的不透水的基础上的反堤坝排水沟的渗漏。假定土壤具有均匀的渗透性。Hutchinson使用有限元方法对此类排水沟的渗流模式进行了一项小型研究，其结果被本文的理论方法所证实。该解决方案还提供了一个方便的基准，可以根据近似数值方法进行评估。最后，给出了基于该理论的设计简图，并举例说明了该理论在护坡排水稳定装置设计中的应用。
Recently, J. N. Hutchinson has collected data on the design and performance of trench and counterfort drains. This article presents an analytical solution to one of these cases, that of seepage into counterfort drains which penetrate the full thickness of a layer of soil, down to the impermeable base on which it rests. The soil is assumed to have uniform permeability.The findings of a small study, by Hutchinson, of seepage patterns to such drains, made with the use of finite element methods, are found to be validated by the theoretical approach in this article. This solution also provides a convenient benchmark against which approximate numerical methods can be assessed.Finally, a design chart based on the theory is presented, with examples of its application to the design of counterfort drain installations for slope stabilization.