Numerical finite element modeling for prediction of groundwater inflow and height of the seepage face in a deep pit

Category Hydrogeology
Group GSI.IR
Location The 25 Symposium of Geosciences
Author A.Arya far- F.Dolati
Holding Date 02 July 2007
 

Numerical finite element modeling for prediction of groundwater inflow and height of the seepage face in a deep pit

 

Abstract

    The depletion of shallower deposits and improvements in mining techniques has led to a considerable increase in economic working depth in open pit mines. Whenever a mine is operated below the water table, water inflow occurs from the surrounding layers towards the mining excavation. In order to design an effective drainage scheme for a surface mine, prediction of water inflow into the pit is essential. By many researchers, several analytical solution bases on assumptions and specific boundary conditions have developed. But, numerical methods, particular, finite element, are useful tools for predicting inflow to open pit. In this paper, a finite element model by use of SEEP/W software, presented. This model is capable to consider the saturated/unsaturated flow, confined/unconfined aquifer, and can determine the height of seepage face on long wall of pit.

 Key words: numerical modeling, finite element, SEEP/W, deep pit, groundwater inflow, height of the seepage face

 

tags: QAZVIN