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Hydraulic Characteristics of Pore Aquifer in Monterrey: As an Alternative Source of Water

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Hydraulic Characteristics of Pore Aquifer in Monterrey: As an Alternative Source of Water Modern Environmental Science and Engineering (ISSN 2333-2581) September 2018, Volume 4, No. 9, pp. 831-837 Doi: 10.15341/mese(2333-2581)/09.04.2018/007 Academic Star Publishing Company, 2018 www.academicstar.us Hydraulic Characteristics of Pore Aquifer in Monterrey: As An Alternative Source of Water Juan Manuel Rodríguez Martínez, Florentino Ayala Vázquez, and Lilia. E. Arriaga Díaz de León School of Civil Engineering, Autonomous University of Nuevo Leon, Mexico Abstract: In this study, the results of the works carried out in the Line 3 of the Light Train System are presented. The content includes several aspects about the hydraulic behavior of the Monterrey pore aquifer; Code CONAGUA 1906; being possible to determine the elastic parameters of the aquifer. The results obtained in the tests of long-term pumping (72 hours) in the wells: PB 1, PB 2, PB3 and PB4 allowed us to determine the following hydraulic parameters of the aquifer: mean transmissibility, storage coefficient, specific flow, hydraulic conductivity, permeability coefficient, radius of influence. By determining such parameters, it was possible to establish that the aquifer behaves as free. We consider that the aquifer in granular media has the capacity to deliver about (500 l/s). In the 3D block, the interdigitation of different lithology packages is observed. At some intervals, a clay domain is present, which reduces the permeability unlike the gravel packs with sands whose conductivity is very high. The aquifer in granular media is closely related to alluvial deposits of the quaternary and the recharge of this aquifer is regional. The preferred direction of the underground flow in the study area is southwest- northeast. Key words: supply, hydraulic parameters and protection of aquifers 2 Transmissibility (T, m /day), Storage Coefficient (S), 1. Introduction Specific Flow Rate (Q, l/s), Influence radius (R, m), Groundwater plays an important role in the supply of Hydraulic Conductivity or Permeability (km/day) of the city of Monterrey, N.L., where 1667 wells capture the metropolitan pore aquifer of Monterrey with water from the granular aquifer, contributing with 25% long-term pumping tests (72 hrs) at constant flow, in of the total consumed in the capital of the State of the excavation works of Line 3 of the light train system. Nuevo León. The El Cuchillo, Cerro Prieto and La In this sector, the work will be developed with all the Boca dams contribute with 75% of an equivalent sections. consumption of 13 m3/sec. Recently, work is being 1.2 Methodology done to bring water from the Panuco River basin, which will cover the supply needs until 2035. The To determine the hydrogeological parameters of the population of the metropolitan area of the city of metropolitan aquifer, long-term pumping tests were Monterrey and the metropolitan area exceeds 4.5 carried out (72 hours) using submersible pumps of 10 million inhabitants, with a per-capita consumption of HP, with a discharge diameter of 6" and a flow rate of 250 l/person/day. 32 l/s each, the total of pumps installed being 4. For this test, the theoretical conditions necessary to apply the 1.1 Objective equations of hydraulics of wells were taken into Determination of hydraulic parameters account as: a) Well totally penetrated in the aquifer. b) Horizontal aquifer of infinite extension of the Corresponding author: Juan Manuel Rodriguez Martinez, hydraulics of the homogeneous and isotropic medium. Ph.D. in Geological Sciences; research areas/interests: groundwater. E-mail: [email protected]. c) Radial flow [1]. 832 Hydraulic Characteristics of Pore Aquifer in Monterrey: As An Alternative Source of Water 1.3 Site Location The study area is located in the central-western portion of the state of Nuevo León. According to the political division of the State, the study area includes part of the municipalities of Monterrey, Guadalupe, Garza Garcia, Santa Catarina, General Escobedo, Villa Juárez, San Nicolás de los Garza and Apodaca, occupying an area of approximately 2193 km2. The Metropolitan Area aquifer is shown in Fig. 1. Fig. 1 Location of the metropolitan aquifer of Monterrey. 2. Material and Methods In this work, the geodynamic mechanism that gave rise to the formation of the structures that make up the Metropolitan Area of Monterrey is considered, as well as on the tectonics of shortening during the Late Cretaceous and Lower Tertiary in northeastern Mexico. This deformation manifests as foldings and thrustings in the upper crust with predominant transport direction towards the east-northeast, as well as transient Fig. 2 Regional tectonic framework of northeastern displacements. Locally complex structures such as Mexico. salients and vergences are presented in different directions to the general direction of the tectonic transgressions and regressions, with lateral and vertical transport [2]. The lifting acted on the deformation of changes of facies, related to fluvial systems, product of the structures, generating a geometry of folds, the avenues. These events are clearly observed in the product of a recumbent anticline, which was ridden position of the edges of the conglomerate (imbrication), north against the Alto de la Isla de Coahuila. The complexes corresponding to those deposits, which are geometry associated to folds began its take off at the restricted to the right shoulder of the channel. The saline level. In those places where evaporite deposits deposit is in some places, very well cemented. Fig. 3 are not present, the structure is wedged. The shows the geology of the site, in the marginal strip are mechanism of the wedge model explains that the described in detail each of the attributes that make up contractions of the layers of material that are unfolded the geological plane [4]. from its base tends to produce a wedge that is shown in 2.2 Census of Hydraulic Uses Fig. 2 [3]. The verification of the census and inventory of 2.1 Geology of the Site hydraulic uses consisted of field trips to confirm the The study area is located in the central part of the location of uses registered both in the field and in the Monterrey Valley, comprising the north-west flank of planes. For the location of each use, global positioners the Mirador Anticlinal and the south-western flank of were employed (GPS Magellan 2001 and Garmin 60x). the Loma Larga Anticline. It is important to emphasize The census was carried out in several periods during that the investigated valley is masked by deposits of the dry season and during the rainy season in the years continental environments and platform, reflection of of 2010 and 2014. During the census it was used the Hydraulic Characteristics of Pore Aquifer in Monterrey: As An Alternative Source of Water 833 format shown in Table 1, where the location of the well is recorded, as well as the name and address of the owner, height of the curb, total depth, construction characteristics, static level, dynamic level, type of pump, depth of the pump column, discharge diameter, flow, etc. In the metropolitan area of Monterrey, 31 exploitations were registered; of which 25 are currently operating. The wells (Monterrey, I, II, III, IV, VI, IX and X) are associated with deep aquifers in fractured media (limestone) of the Lower Cretaceous (Table 1) Fig. 3 Geology of the metropolitan area of Monterrey. (Fig. 4). Table 1 Census of hydraulic uses in the aquifer of the metropolitan area of Monterrey. Characteristics Coordinates Cassing Pipe Pumping column Level (m) Flow # Name of the well Depth (m) X Y Ø Diameter (in) Depth (m) Static Dinamic (l/s.) Monterrey I 362112.74181 2840169.32625 968 18" 10" 100 46.2 75 1 Monterrey II 362907.22130 2839892.69320 1321 18" 6" 120 25.8 45 2 Monterrey III 363967.89190 2840986.65275 780 18" 10" 120 26.8 115 3 Monterrey IV 364422.26315 2840627.85052 1208 18" without equipping 18.3 140 4 Monterrey VI 363712.84337 2841300.66878 540 18" 6" 120 27 70 5 Monterrey IX 364384.40530 2839360.75477 1100 20" without equipping 34.5 52 6 Monterrey X 362581.32763 2842036.68967 645 20" without equipping 72 125 7 Rincón del Valle II 362904.42611 2839853.24994 116 12" without equipping 17.4 10 8 San Jerónimo II 363071.15482 2840443.47398 58 18" 8" 51 24.9 25 9 San Jerónimo III 363074.05981 2840414.97732 58 18" 8" 50 24.9 25 10 Auditorio San Pedro 361340.75618 2839467.04103 80 12" 8" 50 21.3 20 11 Humberto Lobo 361565.05823 2839602.27001 70 12" 8" 50 13.4 70 12 Suchiate I 362032.30528 2839586.13375 30 12" 8" 50 10.7 50 13 Miravalle 362727.36755 2839593.71982 30 12" without equipping 6.9 60 14 Mitras Sur I 364730.75547 2841518.06326 70 10" 4" 50 21.6 20 15 Suchiate II 362037.29324 2839585.61952 70 12" 4" 50 9.7 20 16 Mitras Sur II 364548.18909 2841452.29583 60 10" without equipping 21.3 50 17 Mitras Sur III 364527.18728 2841437.17453 60 10" 4" 50 21.3 20 18 Agustin Lara 366407.36614 2839546.96139 54 10" 4" 43 14.3 10 19 Mediterráneo 366916.66100 2840129.56616 90 12" 3" 58 10 3 20 Fundadores 367597.80678 2840074.03009 65 12" 6" 30 16.8 25 21 Plaza Hidalgo 368208.73202 2839554.49126 21 12" 8" 18 14.5 40 22 Rivapalacio II 369117.90374 2839942.50858 60 8" 4" 48 5.7 3 23 Metrorrey Pte. I 368615.66244 2839528.98643 32 10" 6" 21 13.5 35 24 Metrorrey Pte. II 368603.57406 2839532.11646 32 10" 6" 25 12.8 38 25 Metrorrey Pte. III 368585.11769 2839536.86547 32 10" 6" 21 13.2 38 26 Macroplaza II 368654.98788 2839739.74415 80 10" 6" 42 8.5 16 27 Alameda 367587.07505 2840479.74421 95 10" 2" 55 8.9 3 28 Metrorrey Ote.
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