METHOD FOR DETERMINING THE PARAMETERS OF RELATIONSHIP hydrogeodynamic groundwater and surface water

摘要

A method for determining hydrogeodynamic parameters relationship groundwater and surface water, comprising drilling a central (experimental) and multiple observation wells, pumping out a constant flow rate until the steady state filtering measurement stationary depressions level in all wells and calculations desired hydrogeodynamic parameters, characterized in that except the central (experimental) drilled least 3-4 observation wells, wherein a central hole is placed at a distance L from the edge of the river, 2.5-3 equal capacity of the aquifer, a first observation wells placed between the central bore and the river's edge at a distance (0,15-0,2) L from the center, the second - near the edge of the river, the third - on a beam parallel to the shore line of the river, distance (0,6-0,7) L from the center, a fourth hole placed on the observation edge opposite river bank and the calculation of the parameters the relationship of ground and surface waters ΔL - equivalent length and χ - flow rate in the river bed to produce the following sequence: ! without lowering the level of the fourth observation well (or obviously large width of the river)! calculate the conductivity of the aquifer! T = Q · ln (r3 / r1) / 2π (S1-S3), wherein r - radial coordinate relative to the central axis of the borehole, indexes correspond to the number of observation wells; ! calculated for lowering dimensionless wellbore №2: S2 * = 2πTS2 / Q; ! calculated distance to the reflected wells r0 = r2 · exp (S2 *); ! calculating the desired parameter equivalent length ΔL = 0,5 (r0-L-x2), where x2 - the distance from the edge of the river to №2 observation well, and in the presence of reducing