某高速公路被动地下水控制系统

IF 0.3 Q4 ENGINEERING, GEOLOGICAL Geotechnical Engineering Pub Date : 2004-10-01 DOI:10.1680/GENG.2004.157.4.209
E. Farrell, J. Coppinger
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引用次数: 1

摘要

在爱尔兰农村高速公路的规划阶段,关于道路排水系统对生态重要的沼泽可能产生的影响,引起了相当多的公众讨论,该沼泽距离约5公里。为了克服这个潜在的问题,设计了一个被动的地下水位控制系统,通过保持路面以上1.75 m的水位来限制下降。这一地下水位与高速公路建设之前蓄水层记录的季节性低水位大致相符。这是通过在一个密封的横截面内建造高速公路来实现的,该截面下方有一层透水层,称为地下排水系统,该系统与上层流出的排水管相连。该排水系统控制密封段下方的水压和水流。本文提出了非均质冰川含水层被动地下水控制系统的概念,并分析了该控制系统的效果。
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PASSIVE GROUNDWATER CONTROL SYSTEM FOR A MOTORWAY
Considerable public discussion was generated during the planning stages of a rural motorway in Ireland regarding the possible effects of the road drainage system on an ecologically important fen, which was about 5 km distant. To overcome this potential problem, a passive groundwater level control system was devised to limit the drawdown by maintaining the water levels 1·75 m above the road surface. This groundwater level corresponded approximately to the seasonal low water levels recorded in the aquifer prior to the construction of the motorway. This is achieved by constructing the motorway within a sealed cross-section with a permeable layer beneath this section, called the underdrainage system, which is connected to drains that outflow at the higher level. This underdrainage system controls the water pressures and flows beneath the sealed section. This paper presents the concept of the passive groundwater control system in a non-homogeneous glacial aquifer, and analyses the effects of this control syste...
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来源期刊
Geotechnical Engineering
Geotechnical Engineering ENGINEERING, GEOLOGICAL-
CiteScore
0.50
自引率
0.00%
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0
期刊介绍: The objectives of the Association shall be the promotion of co-operation among geotechnical societies in SE Asia; and the assistance to member societies who have limited number of members. Now there is only one combined web titled: AGSSEA-SEAGS. SEAGS & AGSSEA encourage the submission of scholarly and practice-oriented articles to its journal. The journal is published quarterly. Both sponsors of the journal, the Southeast Asian Geotechnical Society and the Association of Geotechnical Societies in Southeast Asia, promote the ideals and goals of the International Society of Soil Mechanics and Geotechhnical Engineering in fostering communications, developing insights and enabling the advancement of the geotechnical engineering discipline.
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