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首页> 外文期刊>Environmental earth sciences >Simulation of groundwater flow system in alluvium and fractured weathered bedrock zone: Sand Lick watershed, Boone County, West Virginia, USA
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Simulation of groundwater flow system in alluvium and fractured weathered bedrock zone: Sand Lick watershed, Boone County, West Virginia, USA

机译：冲积层和断裂的风化基岩带地下水流动系统的模拟：美国西弗吉尼亚州布恩县的沙利克流域

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摘要

The Appalachian Plateau is characterized by relatively flat-laying but intensely eroded bedrock, comprising cyclical sequences of Pennsylvanian age sedimentary bedrock dominated by sandstone, siltstone, shale, coal, claystone and occasionally limestone. Fractured/weathered sandstone is potentially the main groundwater transmitting zone. Conventional field or laboratory methods of estimating the hydraulic properties in selected points within such fractured and weathered bedrock groundwater transmitting zones are seldom representative or feasible because of their heterogeneity, anisotropy and irregular aquifer geometry. Therefore, the objectives of our study is to determine the "bulk" hydraulic properties of a weathered/fractured zone in a valley located within the Appalachian Plateau Geomorphic Province as well as recharge and evapotranspiration rates by inverse numerical simulation of groundwater flow.
机译：阿巴拉契亚高原的特点是地势相对平坦，但侵蚀严重，包括周期性的宾夕法尼亚州时代沉积基岩层序，主要是砂岩，粉砂岩，页岩，煤，粘土岩，偶尔还有石灰岩。破裂/风化的砂岩可能是主要的地下水传输区。估算此类破裂和风化的基岩地下水传输区域内选定点的水力特性的常规现场或实验室方法，由于其非均质性，各向异性和不规则的含水层几何形状，因此很少具有代表性或不可行。因此，我们研究的目的是通过反演地下水流的数值来确定阿巴拉契亚高原地貌省内一个山谷中风化/断裂带的“大体积”水力特性以及补给和蒸散速率。

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