Estimating Groundwater Recharge from Spring Records at Minefields

Rani, Fatima; Chen, Z. H.

doi:10.1109/iciecs.2009.5365564

Cited by 2 publications

(7 citation statements)

References 6 publications

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“…The recharge conditions of the flow system were characterized by 3 main external sources of water: (1) lateral inflow from the SW boundary fault; (2) rain recharge; (3) rivers bed infiltration in some sections. A substantial contribution of rain recharge and lateral inflow from the boundary fault along the SW margin of the study area to the overall water budget of the study area was documented by (Rani and Chen, 2009). …”

Section: Conceptual Modelmentioning

confidence: 99%

“…The initial hydraulic conductivity distribution for the limestone aquifer (layer # 3 and 4) were assigned as shown in (Fig. 2) (Rani and Chen, 2009). For the upper unconfined quartz-sandstone aquifer there was a lack of hydraulic head and pumping test data therefore heads and K were assumed on the basis of lithological knowledge and fragmented information from shallow wells.…”

Section: Numerical Modelmentioning

confidence: 99%

“…The recharge rates were assigned as in (Rani and Chen, 2009) for the upper aquifer and the pinched part of the limestone aquifer using the MODFLOW recharge package. The initial hydraulic conductivity distribution for the limestone aquifer (layer # 3 and 4) were assigned as shown in (Fig.…”

Section: Numerical Modelmentioning

confidence: 99%

“…Up to now, geologists have confirmed reserves more than 158 kinds of world's known minerals can be found in china, putting China as the third in the world in total reserves and the second largest mineral producer (Rani and Chen, 2009). Because of the current large-scale development of mining, it becomes necessary to increase the depth of exploration to extract the minerals.…”

Section: Introductionmentioning

confidence: 99%

“…This manuscript is the second study describing the hydrogeological components of Makeng mining project. The first study presents the estimation of aquifer recharge from springs' flow records (Rani and Chen, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Numerical Modeling of Groundwater Flow in Karst Aquifer, Makeng Mining Area

Rani¹,

Chen²

2010

American Journal of Environmental Sciences

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Problem statement: Making iron ore is one of the largest mining projects in south east of china. Due to the development of mining activities in that site, it has become necessary to increase the depth of exploration. Increase the exploration depth makes the mining tunnels subjected to the karst water inrush. Approach: A hydrological and a hydrogeological model for the Makeng area have been developed, which yield information on relevant parameters such as groundwater recharge and margins' lateral inflow, to estimate aquifer yield. USGS flow code, MODFLOW 2000, was used to produce the numerical model. Collected GIS based information was synthesized in a finite difference numerical model. The regional steady and transient-state flow was calibrated under pre-development conditions assuming an equivalent porous medium approach. Results: Water budget calculations show that the total groundwater flow in regional aquifers amounts to 2.98 mm 3 year −1 . Infiltration from precipitation provides 61.7% of the groundwater supply, while 21% comes from lateral inflow and the remaining 17.3% is induced recharge from surface waters. Discharge from regional aquifers occurs through springs outflow 88.5% and flow to streams 11.5%. Conclusion/Recommendations: Although the karstic nature of the limestone aquifer the equivalent porous-medium flow model is appropriate to represent hydraulic heads and recharge/discharge relationships on a regional scale. The results of this study can be used to predict the required amounts of pumping and the possible locations to dewater the groundwater around the mining tunnels.

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Section: Conceptual Modelmentioning

confidence: 99%

Section: Numerical Modelmentioning

confidence: 99%

Section: Numerical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Numerical Modeling of Groundwater Flow in Karst Aquifer, Makeng Mining Area

Rani¹,

Chen²

2010

American Journal of Environmental Sciences

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Assessment of regional discharge and spring type using hydrograph and Maillet analyses in Kumalar Mountain region, Afyonkarahisar, Turkey

2021

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Kumalar Mountain and its surroundings have an important groundwater potential for Sandıklı and Şuhut districts, due to intense spring discharges. The springs discharged from limestones and volcanic units and are used for drinking, using, and irrigation purposes. Therefore, it is of great importance to determine the capacities and potentials of such springs in the rural areas. The aim of this study is to reveal the hydraulic properties, discharge mechanisms, and potential of the natural springs located around the Kumalar Mountain region. Monthly flow measurements were made between September 2017 and September 2018 in 19 springs in the study area. The annual flow rates of the springs in the study area vary between 0.01 and 2.10 l/s. Spring flow rates are increased in the rainy seasons. The annual base flow and average flow rates of springs were calculated by hydrography analysis and are 311.04-57,024 m 3 /year and 0.01-1.81 l/s respectively. The coefficient of discharge (α) 8.77 × 10 −4 -9.82 × 10 −3 day −1 , flow variability (Q d ) 0.10-0.69 l/s, and average base flow (Q b ) 0.01-2.03 l/s values were calculated by Maillet equation. According to the coefficients of discharge and flow variation, springs were determined as "types 2 and 3". Torun spring in Yıprak which feed by limestone has the highest flow.

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Estimating Groundwater Recharge from Spring Records at Minefields

Cited by 2 publications

References 6 publications

Numerical Modeling of Groundwater Flow in Karst Aquifer, Makeng Mining Area

Numerical Modeling of Groundwater Flow in Karst Aquifer, Makeng Mining Area

Assessment of regional discharge and spring type using hydrograph and Maillet analyses in Kumalar Mountain region, Afyonkarahisar, Turkey

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