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首页> 外文会议>GeoShanghai International Conference; 20060606-08; Shanghai(CN) >The Hydraulic and Geo-Environmental Behavior of the Sub-Pavement Environment
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The Hydraulic and Geo-Environmental Behavior of the Sub-Pavement Environment

机译：子路面环境的水力和地质环境行为

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摘要

The paper considers the environmental properties and possible impacts of a wide range of candidate non-geologic, i.e. "alternative", materials for pavement construction. Previous studies had shown that, depending on the material, they were likely to perform adequately from a mechanical point-of-view when used as-is, lightly stabilized and self-cemented. Thus the materials were subjected, in these conditions, to leaching testing (using two laboratory-based methods) and to outdoor lysimeter tests over a 1 year period at a test site. Outline results of observed performance are reported and the results compared and interpreted. The data was then used in a geo-environmental groundwater flow study, together with information on pavement run-off and percolation, in order to predict the mobility of both the run-off and the leached species in the sub-pavement environment. For the studies made, it is shown: that concerns about large scale pollution from leachate are unfounded; that, where there is excessive leaching from a contaminated base or sub-base layer 'source', the immediate pavement environment rapidly attenuates contaminant levels to acceptable values, and that, for most species, run-off should be of much greater concern than leaching from the pavement construction materials.
机译：本文考虑了环境属性以及各种候选非地质材料（即“替代”）用于路面施工的材料的可能影响。以前的研究表明，根据材料的不同，从机械角度看，它们按原样使用，轻度稳定和自粘水泥可能会发挥足够的性能。因此，在这些条件下，对材料进行了浸出测试（使用两种基于实验室的方法），并在测试地点进行了为期一年的室外溶渗仪测试。报告观察到的性能概述结果，并对结果进行比较和解释。然后，将这些数据与路面径流和渗滤信息一起用于地球环境地下水流量研究中，以便预测径流和沥滤物种在子路面环境中的迁移率。对于所进行的研究表明：对沥滤液产生的大规模污染的担忧是没有根据的；在受污染的基础层或次基层“源”有过多的淋洗的情况下，直接铺装环境会迅速将污染物水平降低至可接受的水平，并且对于大多数物种而言，径流应比淋洗更受关注从路面施工材料。

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