Optimal aquifer dewatering schemes for excavation of collector line

Date

2002-07-01

Author

TOKGOZ, M
Yılmaz, Koray Kamil
Yazıcıgil, Hasan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

140
views

0
downloads

Groundwater flow modeling and optimization techniques are used jointly to determine the optimal dewatering system design for a trench type excavation (with 3,000 m total length) to be opened below the groundwater table in the Aksaray Organized Industrial District, Aksaray, Turkey. Four dewatering systems are simulated, optimized, and compared to choose the best system design. Two of the models are designed to minimize only the total amount of pumpage (linear programming models), while the other two explicitly account for the completion cost of pumping wells as well as the total pumpage amount (mixed-integer programming models). Steady-state and transient simulation models are linked to linear and mixed-integer optimization models using response functions. Since the aquifer is unconfined, an iterative correction procedure is applied to account for the nonlinearity of the system. Optimal solutions of the models are compared on the basis of completion time of the construction, pumpage amount, number of pumping wells, and efficiency and applicability of the system in practice. Results show that the transient mixed-integer programming model depicts the most favorable solution with respect to the number of wells required, the completion time of construction, and the total volume of water pumped.

Subject Keywords

Optimization, Aquifers, Dewatering, Excavation

URI

https://hdl.handle.net/11511/32090

Journal

JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT-ASCE

DOI

https://doi.org/10.1061/(asce)0733-9496(2002)128:4(248)

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Optimal dewatering of an excavation site Demirbas, Korkut; Altan Sakarya, Ayşe Burcu; Önder, Halil (2012-06-01) Optimal dewatering of an excavation area in an unconfined aquifer is studied using a combined optimisation-simulation approach. In combining a groundwater model with an optimisation model, a response matrix approach, generated on the basis of linear superposition, is used. ModMan, which calls Modflow repeatedly to generate a response matrix, is utilised to transform the groundwater management problem into a linear integer programming problem. A hypothetical dewatering area is considered to examine the effec...
Optimal sizing of storage tanks in domestic rainwater harvesting systems: A linear programming approach Okoye, Chiemeka Onyeka; Solyali, Oguz; Akintug, Bertug (2015-11-01) This paper proposes an optimization model to determine the optimal tank size of a single residential housing unit for rainwater harvesting and storage. Taking into account the site specific data such as the rainfall profile, the roof area of the building, the water consumption per capita and the number of residents, an integrated optimization model based on linear programming is proposed to decide on the size of rainwater storage tank to build such that the net present value of the total tank construction c...
Optimal Ground Water Pollution Plume Containment with Fixed Charges MISIRLI, FEYZAN; Yazıcıgil, Hasan (1997-01-01) Six ground-water management models were developed and compared to identify the best management alternative for the containment of a ground-water pollution plume in a hypothetical aquifer that is used for freshwater supply The proposed models are formulated as quadratic programming, linear programming, and mixed-integer programming models. Management models are grouped into two on the basis of treatment cost consideration. The optimal solutions of the models are compared and evaluated on the basis of total c...
Feasibility analysis and proof of concept for thermoelectric energy harvesting in mobile computers Denker, R.; Muhtaroglu, A. (AIP Publishing, 2013-03-01) Thermoelectric (TE) energy harvesting in compact microelectronic systems necessitates detailed upfront analysis to ensure unacceptable performance degradation is avoided. TE integration into a notebook computer is empirically investigated in this work for energy harvesting. A detailed finite element model was constructed first for thermal simulations. The model outputs were then correlated with the thermal validation results of the selected system. In parallel, a commercial TE micro-module was empirically c...
Optimum Design of Concrete Cantilever Retaining Walls using the Harmony Search Algorithm Akin, A.; Saka, M. P. (2010-09-17) Optimum cost design of reinforced concrete cantilever retaining walls with harmony search algorithm is presented in this paper. The reinforced concrete cantilever retaining wall is the most common type among the retaining wall structures. In the formulation of the optimum design problem the height and thickness of stem, length of toe projection and the thickness of stem at base level, the length and thickness of base, the depth and thickness of key and the distance from toe to the key are treated as design ...

Citation Formats

M. TOKGOZ, K. K. Yılmaz, and H. Yazıcıgil, “Optimal aquifer dewatering schemes for excavation of collector line,” JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT-ASCE, pp. 248–261, 2002, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32090.