scholarly journals Numerical modeling of foundation pit dewatering based on Visual Modflow

2021 ◽  
Vol 781 (2) ◽  
pp. 022003
Author(s):  
Weiping Lu ◽  
Zhisheng Chen ◽  
Rongpeng Wu ◽  
Zhichao Zhang
2008 ◽  
Vol 47 (1) ◽  
Author(s):  
E. L. Flores-Márquez ◽  
R. G. Martínez-Serrano ◽  
R. E. Chávez ◽  
Y. Crusillo ◽  
G. Jiménez ◽  
...  

Se presenta un modelo geohidrológico evolutivo 3D a corto plazo (para los años 2001, 2005 y 2015) del acuífero somero del Valle de Etla, Oaxaca, sureste de México, basado en los parámetros disponibles de geología, geofísica, geoquímica e hidrología. Las simulaciones numéricas fueron realizadas en Visual MODFLOW. Estas simulaciones indican que, si el actual régimen de extracción es mantenido, el abatimiento de la superficie potenciométrica puede ser mayor en el SE del área de estudio (i. e. cerca de la ciudad de Oaxaca). La contaminación por fertilizantes y por las fugas de drenaje es favorecida por la dirección de flujo imperante en el acuífero (vaciándose en el río Atoyac) De acuerdo a las simulaciones numéricas, existe una posible remediación de este proceso, relocalizando los pozos situados en la ciudad de Oaxaca en las zonas de recarga (i. e. en las faldas de la Sierra de Juárez). Este escenario de remediación permitiría una recuperación en el nivel de la superficie potenciométrica.


2010 ◽  
Vol 108-111 ◽  
pp. 1482-1485 ◽  
Author(s):  
Gong Xin Chen ◽  
Wang Lei

Based on the detailed analysis of site engineering geological and hydro-geological conditions for the proposed project Nanchang International Finance Center high-rise building, the dewatering design of this fundamental pit is proposed, in accordance with the surrounding environment as well as those pit design elements and so on. The three-dimensional numerical simulation model of groundwater for dewatering is also established. Using the three-dimensional groundwater numerical simulation software, Visual-modflow, the site is meshed into grid and the dewatering model is built under different well numbers and space. Al last, an optimal program (10 pumping wells for each pit and well equaling space) for this pit has been determined. It is also to simulate the water level vs. time during the dewatering. This does not only provide a strong basis for the optimum design of the foundation pit dewatering, but also provide a scientific basis for decision making to the underground construction.


2007 ◽  
Author(s):  
T. Campbell ◽  
B. de Sonneville ◽  
L. Benedet ◽  
D. J. W. Walstra ◽  
C. W. Finkl

Author(s):  
D.S. Rakisheva ◽  
◽  
B.G. Mukanova ◽  
I.N. Modin ◽  
◽  
...  

Numerical modeling of the problem of dam monitoring by the Electrical Resistivity Tomography method is carried out. The mathematical model is based on integral equations with a partial Fourier transform with respect to one spatial variable. It is assumed that the measurement line is located across the dam longitude. To approximate the shape of the dam surface, the Radial Basic Functions method is applied. The influence of locations of the water-dam, dam-basement, basement-leakage boundaries with respect to the sounding installation, which is partially placed under the headwater, is studied. Numerical modeling is carried out for the following varied parameters: 1) water level at the headwater; 2) the height of the leak; 3) the depth of the leak; 4) position of the supply electrode; 5) water level and leaks positions are changing simultaneously. Modeling results are presented in the form of apparent resistivity curves, as it is customary in geophysical practice.


2015 ◽  
Vol 35 ◽  
pp. 232-235 ◽  
Author(s):  
Leonardo Piccinini ◽  
Paolo Fabbri ◽  
Marco Pola ◽  
Enrico Marcolongo ◽  
Alessia Rosignoli

2016 ◽  
Vol 41 ◽  
pp. 10-13 ◽  
Author(s):  
Luca Alberti ◽  
Martino Cantone ◽  
Silvia Lombi ◽  
Alessandra Piana

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