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Regional subsidence at the former Texcoco Lake: numerical modelling and settlements prediction

机译:前Texcoco湖区的区域押金:数值建模和定居点预测

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摘要

This paper describes the application of an EVP one-dimensional constitutive soil model to analyse regional subsidence. The model was modified assuming that the boundary conditions vary over time, as well as considering the stratification of the subsoil. It adequately simulates the consolidation process caused by the exploitation of the aquifers that underlie the Mexico basin, and is validated at a site in the former Texcoco Lake, some 14 km north of Mexico City, where geotechnical and piezometric information is available together with records of past subsidence. Settlement predictions were carried out for different periods of time, assuming that pore pressure depletion rates at the permeable borders of the compressible strata remain constant over time.
机译:本文介绍了EVP一维本构模型的应用分析区域沉降。假设边界条件随着时间的变化,以及考虑底土的分层,因此修改了该模型。它充分模拟了由墨西哥盆地利用的含水层开采造成的整合过程,并在前Texcoco Lake的网站上验证,墨西哥城北大约14公里,岩土电压和压力信息可与记录一起使用过去的沉降。假设可压缩地层的可渗透边界处的孔压耗尽率随着时间的推移保持恒定的情况下,对不同的时间段进行了沉降预测。

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