Modelo hidrogeol?gico para simular la interacci?n entre el Dren Las Vegas y el R?o Aconcagua
Seventy five percent of the potable water of the city of Valpara?so, Chile, is obtained from the exploitation of aquifer of the Aconcagua River aquifer at the Las Vegas system. The Las Vegas system is located at approximately 70 km from the city and it is comprised by several civil works for collect...
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Santiago / Universidad Cat?ligca de Chile / 2015
2015
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| Acceso en línea: | http://repositorio.educacionsuperior.gob.ec/handle/28000/1716 |
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HIDROGEOLOG?A MODELACI?N NUM?RICA ACU?FERO R?O ACONCAGUA |
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HIDROGEOLOG?A MODELACI?N NUM?RICA ACU?FERO R?O ACONCAGUA Ter?n Parra, Edwin Iv?n Modelo hidrogeol?gico para simular la interacci?n entre el Dren Las Vegas y el R?o Aconcagua |
| description |
Seventy five percent of the potable water of the city of Valpara?so, Chile, is obtained from the exploitation of aquifer of the Aconcagua River aquifer at the Las Vegas system. The Las Vegas system is located at approximately 70 km from the city and it is comprised by several civil works for collection, transport and treatment, being that of major importance the Las Vegas drain.
The Las Vegas drain is approximately 2000 m lengths and it is buried at a depth of 40 m in a zone that has a strong interaction between surface waters and groundwater. Since its construction in 1960, the hydraulic characteristics of the drain have changed; forcing the water utility company to include additional potable water, complicating the managing of the drain in operational aspects because don?t have a clear idea of the contribution of the aquifer to the Las Vegas drain.
Modflow 2000 numerical model was constructed to analyze the functioning of the Las Vegas drain in the time. The numerical model has three layers with 356400 cells of 50 x 50 m2. The analysis per?od is 32 years and takes into account the precipitation, irrigation, and infiltration from the Aconcagua River and the infiltration ponds like inflow water; while the discharges of the model are outcrops in natural riverbeds and pumping from wells.
The model establish a direct relationship between the water flow at the exit of the drain and the streamflow of the Aconcagua River, and to define the conductance of the river as a function of the streamflow. The initial conductance of the drain was modified to reflect its change in time. This model is an excellent tool that supports decisions to optimize water management in per?ods of drought and flood. |
| author2 |
Mu?oz, Jos? Francisco |
| author_facet |
Mu?oz, Jos? Francisco Ter?n Parra, Edwin Iv?n |
| author |
Ter?n Parra, Edwin Iv?n |
| author_sort |
Ter?n Parra, Edwin Iv?n |
| title |
Modelo hidrogeol?gico para simular la interacci?n entre el Dren Las Vegas y el R?o Aconcagua |
| title_short |
Modelo hidrogeol?gico para simular la interacci?n entre el Dren Las Vegas y el R?o Aconcagua |
| title_full |
Modelo hidrogeol?gico para simular la interacci?n entre el Dren Las Vegas y el R?o Aconcagua |
| title_fullStr |
Modelo hidrogeol?gico para simular la interacci?n entre el Dren Las Vegas y el R?o Aconcagua |
| title_full_unstemmed |
Modelo hidrogeol?gico para simular la interacci?n entre el Dren Las Vegas y el R?o Aconcagua |
| title_sort |
modelo hidrogeol?gico para simular la interacci?n entre el dren las vegas y el r?o aconcagua |
| publisher |
Santiago / Universidad Cat?ligca de Chile / 2015 |
| publishDate |
2015 |
| url |
http://repositorio.educacionsuperior.gob.ec/handle/28000/1716 |
| _version_ |
1634995043148234752 |
| spelling |
oai:localhost:28000-17162017-02-21T21:03:56Z Modelo hidrogeol?gico para simular la interacci?n entre el Dren Las Vegas y el R?o Aconcagua Ter?n Parra, Edwin Iv?n Mu?oz, Jos? Francisco Su?rez, Francisco Starck, Nicol?s Escobar, Rodrigo HIDROGEOLOG?A MODELACI?N NUM?RICA ACU?FERO R?O ACONCAGUA Seventy five percent of the potable water of the city of Valpara?so, Chile, is obtained from the exploitation of aquifer of the Aconcagua River aquifer at the Las Vegas system. The Las Vegas system is located at approximately 70 km from the city and it is comprised by several civil works for collection, transport and treatment, being that of major importance the Las Vegas drain. The Las Vegas drain is approximately 2000 m lengths and it is buried at a depth of 40 m in a zone that has a strong interaction between surface waters and groundwater. Since its construction in 1960, the hydraulic characteristics of the drain have changed; forcing the water utility company to include additional potable water, complicating the managing of the drain in operational aspects because don?t have a clear idea of the contribution of the aquifer to the Las Vegas drain. Modflow 2000 numerical model was constructed to analyze the functioning of the Las Vegas drain in the time. The numerical model has three layers with 356400 cells of 50 x 50 m2. The analysis per?od is 32 years and takes into account the precipitation, irrigation, and infiltration from the Aconcagua River and the infiltration ponds like inflow water; while the discharges of the model are outcrops in natural riverbeds and pumping from wells. The model establish a direct relationship between the water flow at the exit of the drain and the streamflow of the Aconcagua River, and to define the conductance of the river as a function of the streamflow. The initial conductance of the drain was modified to reflect its change in time. This model is an excellent tool that supports decisions to optimize water management in per?ods of drought and flood. El 75% del agua potable para la ciudad de Valpara?so depende de la explotaci?n del acu?fero del r?o Aconcagua en el sistema Las Vegas. El sistema Las Vegas se ubica a 70 km de la ciudad de Valpara?so y est? compuesto de varias obras civiles de captaci?n, conducci?n y tratamiento, siendo la de mayor importancia la captaci?n subterr?nea denominada dren Las Vegas. El dren Las Vegas posee una extensi?n aproximada de 2000 m de longitud, enterrado a una profundidad de 40 m en una zona con alta interacci?n entre las aguas superficiales y el acu?fero. Desde su construcci?n en la d?cada de los a?os 60, el dren ha visto afectado sus propiedades hidr?ulicas forzando a la empresa encargada de su manejo a implementar fuentes adicionales de agua potable, complicando el manejo del dren en varios aspectos operacionales ya que no existe una idea clara del real aporte del acu?fero al dren Las Vegas. En este estudio, se construy? un modelo num?rico en la plataforma MODFLOW 2000 para analizar el funcionamiento temporal del dren Las Vegas. El modelo num?rico est? compuesto por tres capas de 356400 celdas con un mallado de 50 x 50 m2. El per?odo de an?lisis es de 32 a?os y toma en cuenta la precipitaci?n, el riego e infiltraci?n desde el r?o Aconcagua y piscinas de infiltraci?n como ingreso de agua modelo; mientras que las descargas son los afloramientos en cauces naturales y pozos de bombeo. El modelo logra precisar la relaci?n existente entre el caudal en el r?o Aconcagua y el caudal de salida del dren Las Vegas y define la conductancia del r?o Aconcagua como una funci?n de su caudal. Adem?s refleja los cambios en la conductancia del dren Las Vegas en el tiempo. Resultando as? ser una excelente herramienta en la toma de decisiones al momento de optimizar el manejo del recurso h?drico en per?odos de estiaje o crecida. 2015-11-25T21:10:54Z 2015-11-25T21:10:54Z 2015-04 masterThesis Ter?n Parra,Edwin Iv?n (2015). Modelo hidrogeol?gico para simular la interacci?n entre el Dren Las Vegas y el R?o Aconcagua. (Trabajo de Titulaci?n de M?ster en Ingenier?a). Universidad Cat?lica de Chile. Santiago. 88 p. http://repositorio.educacionsuperior.gob.ec/handle/28000/1716 spa 88 p. Santiago / Universidad Cat?ligca de Chile / 2015 |
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11,871979 |