scholarly journals Some properties of Kirkham’s method for drain spacing determination in marshy - gley soil

2003 ◽  
Vol 48 (1) ◽  
pp. 59-67
Author(s):  
Nevenka Djurovic ◽  
Ruzica Stricevic
Keyword(s):  
Steady State ◽  
Ground Water ◽  
Water Flow ◽  
Water Table ◽  
Soil Type ◽  
Water Discharge ◽  
Water Table Depth ◽  
Drain Spacing ◽  
State Water ◽  
Drainage Field

The aim of this work is to present some peculiarity of Kirkham?s method applied in drain spacing determination in steady state water flow in eugley soil type. The analysis was based on data obtained by measuring water discharge from drains and water table depth. Measurements was carried out on drainage field with drain spacing of 10 m, 20 m and 30 m, representing drainage treatments I, II and III, respectively. The estimation of drain spacing is moved to lower value in all treatments. The results of analysis show meaningful limitation of method, especially in the treatments with wider drain spacing as well as in the cases of deeper ground water.

scholarly journals Some properties of Dagan’s method for drain spacing determination in marshy - gley soil

2003 ◽  
Vol 48 (1) ◽  
pp. 69-75 ◽  
Author(s):  
Nevenka Djurovic ◽  
Ruzica Stricevic
Keyword(s):  
Steady State ◽  
Linear Function ◽  
Water Flow ◽  
Water Table ◽  
Drainage System ◽  
Water Table Depth ◽  
Flow Conditions ◽  
Drain Spacing ◽  
State Water ◽  
Dry Out

Dagan?s method as well as Kirkham?s one belong to the group of methods for drain spacing determination in steady state water flow conditions. Both methods are based on the assumption that drainage spacing (L) is linear function of water table depth and drainage discharge (h/q). The only difference can be distinguished in the values of coefficients. To dry out eugley type of soil, drain spacing is better determined by Dagan?s method in all treatments, as compared with Kirkham?s one. Advantage of this method is especially marked on the drainage system with narrower drain spacing.

scholarly journals Revisiting steady state water flow in a saturated, inclined soil slab

1999 ◽  
Vol 35 (5) ◽  
pp. 1435-1442
Author(s):  
Lyle Prunty ◽  
G. Padmanabhan
Keyword(s):  
Steady State ◽  
Water Flow ◽  
State Water

Ground Water Contamination of the Coal Gangue Leachate of Sandy Base Field in Erdos - On the Case of the Coal Waste Field of Daliu Tower Mine Area

2013 ◽  
Vol 405-408 ◽  
pp. 2172-2176
Author(s):  
Jia Yin Lu ◽  
Shao Gang Dong ◽  
Wei Zhang ◽  
Ding Ding Wu
Keyword(s):  
Ground Water ◽  
Water Flow ◽  
Water Discharge ◽  
Coal Gangue ◽  
Hazardous Substances ◽  
Coal Waste ◽  
Water Runoff ◽  
Ground Water Flow ◽  
Background Value ◽  
Flow Systems

Based on the hydro-geological survey, sampling analysis and combined with ground water flow systems theory, the work studied coal gangue leachate of a typical sandy base coal waste field in Erdos on ground water environmental impact. The results showed that pile of coal waste change the original characteristics of ground water flow systems, coal waste field from ground water discharge areas change into the runoff area, the bottom of Gangue heap immersion in ground water long term, the toxic and hazardous substances released and spread to the downstream by ground water runoff. Chromium, arsenic, fluoride, sulfateradical, copper, zinc, nickel, manganese and other pollution factors in the downstream ground water of gangue field and surface outlet is much higher than background value, where concentration of arsenic and NO3–N is 1.013mg / l and 31.2 mg / l, respectively higher than the background value which is 148 and 3 times.

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