Muluadwa Posted November 10, 2010 Report Share Posted November 10, 2010 Hi all', I would like to simulate the outflow rate out of a saturated compacted fill material 120 m by 60 m pit area (1.8 m depth) with 4 layers units (clay/gravel). Leakage is detected at the leachate extraction and detection sumps. The fill material- could be saturated during time of placement (since there was 160 mm of rainfall during this time). Therefore, there has been no recharge/rainfall since capped. It is well capsulated with clay liners (sidewall/ bottom of the pit)in place. The water table in the area is deep 12 m below surface. The task is to figure out if the outflow/leakage is coming out of the saturated fill material or it is leakage from surface (which is unacceptable).I am planning to simulate the outflow rate and match with the observed flow rate at the leachate extraction sump (coming out after 3 months since placement, this could be due to delayance effect?. Do we expect a constant outflow rate through out or varies exponentially with time? How long do we need to pump out if the leakage is coming out of the filled mataerial. How can I simulate this problem this using MODFLOW? regardsMuluadwa Quote Link to comment Share on other sites More sharing options...
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