dewatering optimization groundwater

Mine Dewatering

Mine Dewatering. Open pits are developed in the mining industry for the extraction of minerals, raw materials, and aggregate. In many circumstances, these pits are excavated below the water table. Depending on the geologic environment and proximity of streams, rivers, ponds, and lakes, significant groundwater inflows may occur.

Well Optimization

Groundwater remediation system design: Pumping well optimization is used to estimate the most cost-effective pump-and-treat groundwater remediation system by minimizing factors such as the number of pumping wells, and total pumping rates, while maintaining capture of the contaminated groundwater plume. Site dewatering system design: …

Numerical simulation of deep foundation pit dewatering and optimization

3.2.. The hydrogeological conditionThe main types of groundwater in the foundation pit are the unconfined water in the shallow clay aquifer, the sub-confined water in the shallow aquifer of silty soil (④ 2 and ⑤ 2) and the confined water in the deep aquifer of fine sand soil ⑦.The water level (reference level is the sea level of Yellow Sea) of the …

Optimal Design and Dynamic Control of Construction …

2.1 Calculation of Water Yield and Dewatering Time in Single-well Dewatering Process First of all, the single-well dewatering system is analyzed. As shown in Fig. 1, a cone of drawdown is formed around the well after dewatering. The groundwater near the dewatering well recharges the dewatering region. In order to …

Optimization of dewatering schemes for a deep foundation pit …

However, a high groundwater level will increase the difficulty and reduce the safety of construction. Subsequently, dewatering is vital in pit excavation, especially for a large and deep foundation pit in confined aquifers with high piezometric head (Forth, 2004, Li and Pei, 2011, Ding et al., 2014, Pujades et al., 2014).

Confined aquifer dewatering optimization with a modified …

Introduction. Groundwater control is of vital importance for maintaining engineering safety in underground construction. For deep excavations in the strata with confined aquifers, if the soil weight between the top of the confined aquifer and the excavation face is surpassed by confined hydraulic pressure, hydraulic uplift are likely to happen, which may result in …

Research on Multi-Objective Optimization Model of …

The multi-objective optimization evaluation system based on AHP is constructed from the three aspects of dewatering cost, the impact of settlement on the environment, and the safety and stability ...

Fig. 1 Sketch map of Shengli no. 1 open-pit coalmine (1.

Groundwater model domain) from publication: Groundwater dewatering optimization in the Shengli no. 1 open-pit coalmine, Inner Mongolia, China | Impacted by groundwater, faults, lithology, and ...

Optimization Strategies for in Situ Groundwater …

As for the field applications of VCW, besides groundwater dewatering (Jin et al., 2016), heat pump system (Wu et al., 2019) and control of saltwater intrusion (Vats et al., 2020) in the past few years, in situ aquifer remediation (Herrling & Stamm, 1994; Herrling et al., 1991) through VCW has been conducted since the last century.

Pit dewatering optimization of a 3D FEFLOW unstructured groundwater …

Join us to Slope Stability 2020 symposiums and discover how DHI deals with geological complexity, optimize dewatering program and explore model uncertainty using data fusion.. 3D unstructured meshing in FEFLOW allows for an increased level of detail in the open pit and a better representation of the geological complexity and …

A linked simulation–optimization model for solving the …

Optimization of confined aquifer dewatering for long-deep excavation using simulation–optimization method. 2024, Underground Space (new) Show abstract. ... Groundwater contamination is a major problem and it can be contaminated by natural or manmade activities. Contaminant sources cannot be identified promptly after a …

Dewatering 101: An Introduction to Construction …

By David BardsleyApril 12, 2022. Construction dewatering is the process of removing groundwater from a construction site to provide a safe and stable subgrade for excavation. Groundwater is removed from the site using …

Combined Simulation-Optimization of an Excavation Site for Dewatering …

Optimal decision of dewatering of an excavation area in an unconfined aquifer is searched by using the combined optimization-simulation approach. In combining groundwater model with the optimization model, response matrix approach, generated on the basis of linear superposition, is used. MODMAN that calls MODFLOW repeatedly to generate …

Optimization of dewatering schemes for a deep foundation …

DOI: 10.1016/J.JRMGE.2018.02.002 Corpus ID: 134500615; Optimization of dewatering schemes for a deep foundation pit near the Yangtze River, China @article{You2018OptimizationOD, title={Optimization of dewatering schemes for a deep foundation pit near the Yangtze River, China}, author={Yang You and Changhong Yan …

MGO Dewater Tutorial

Pumping well optimization technology is used to determine the ideal pumping well locations, and ideal pumping rate s at these locations, in order to minimize or maximize ... pumping rates, while maintaining capture of the contaminated groundwater plume. • Site dewatering system design: Pumping well optimization is used to estimate

Dewatering optimization using a groudwater flow model …

Download Citation | Dewatering optimization using a groudwater flow model at the Whitewood open-pit coal mine, Alberta | By 1980, coal production and coal recovery at the Whitewood mine, Alberta ...

Groundwater dewatering optimization in the …

Afterward, a groundwater optimization model is integrated with the calibrated simulation model to realize groundwater dewatering optimization in the studied open-pit …

Numerical simulation of deep foundation pit dewatering and optimization

The design and optimization of the dewatering scheme for deep foundation pits in a highly permeable heterogeneous layer are critical to protect water resources, control subsidence and mitigate ...

Optimization of a deep foundation pit dewatering …

The optimization scheme for dewatering engineering was determined under hydrodynamic, leakage strength, and ground settlement constraints. The filter …

Construction Dewatering and Groundwater …

Topics covered will include the conditions where different dewatering methods are effective; site subsurface investigation appropriate for dewatering projects, including …

Numerical simulation of deep foundation pit dewatering and optimization

Semantic Scholar extracted view of "Numerical simulation of deep foundation pit dewatering and optimization of controlling land subsidence" by N. Zhou et al. ... Aiming at the land-subsidence caused by groundwater dewatering in quaternary loose sediments,based on Biot's consolidation theory,a full coupling three-dimensional …

Environmentally sustainable groundwater control during dewatering …

This optimization process is necessary when considering the appropriate dewatering schemes for a particular dewatering project. Traditionally, analyses of ground settlement caused by foundation pit dewatering have used numerical methods to study the effects of seepage and the deformation of foundation pits ( Wu et al., 2015a, Wu et al., …

Dewatering optimization using a groundwater flow model …

By 1980, coal production and coal recovery at the Whitewood mine, Alberta, were unacceptably low as a result of poor groundwater and surface water control at the mine. A feasibility study conducted to determine the most cost-effective method to reduce groundwater inflows into the mine pit and reduce pore-water pressures in the mine walls …

Optimization schemes for deep foundation pit dewatering …

The optimized dewatering scheme with a curtain depth of 60 m and a hydraulic conductivity of 0.00518 m/d, and four rows of dewatering wells with an equal row spacing of 40 m, well depth of 50 m ...

Groundwater and geotechnical aspects of deep

Groundwater control for deep excavations can be achieved by a number of methods such as grouting, pumping or structural walls or a combination of these. ... Confined aquifer dewatering optimization with a modified simulation–optimization method capable of determining the optimal well screen length and depth. 2024, Journal …

Confined aquifer dewatering optimization with a modified …

1. Introduction. Groundwater control is of vital importance for maintaining engineering safety in underground construction. For deep excavations in the strata with confined aquifers, if the soil weight between the top of the confined aquifer and the excavation face is surpassed by confined hydraulic pressure, hydraulic uplift are likely to happen, which …

A simulation-optimization approach for optimal …

Afterward, a groundwater optimization model is integrated with the calibrated simulation model to realize groundwater dewatering optimization in the studied open-pit coalmine, and an optimization ...

Numerical evaluation of a 70-m deep hydropower station

The foundation pit of Yamansu hydropower station has an average depth of 70 m and has been excavated with five-level slopes. Lowering of groundwater level is important in excavation. In this study, drainage and pumping were conducted in dewatering. Pumping tests were performed to reverse hydraulic parameters and …

Groundwater dewatering optimization in the Shengli …

For the groundwater dewatering optimization problems, one objective is to minimize the total pumping rates of the dewatering wells. Another objective is to …

Numerical simulation of foundation pit dewatering using …

Groundwater level has to be lowered during deep excavation. A vertical curtain is usually adopted to control the drawdown inside and outside a foundation pit in a built-up area. However, the cost ...