Deep imbedded underground water-permeable passage plugging method
A channel and downstream technology, which is applied in the field of underground water permeable channel plugging and treatment, can solve the problems of underground engineering or mine facilities scrapping life and property, damage and loss of engineering facilities, etc., to reduce the workload of plugging, reduce the cost of plugging, targeted effects
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[0021] Through measurement, the flow velocity at the dew point of the main permeable channel is 0.5m / s, and the flow rate is 2.5m 3 / s;
[0022] Drill three plugging holes in the permeable channel, i.e., upstream hole 1, midstream hole 2 and downstream hole 3, with a diameter of 100 mm and a hole depth of 80 m. Add wall protection steel sleeve 4 in the interior.
[0023] Choose stones with a particle size of 15-25 mm,
[0024] In the upstream hole 1, use high-pressure wind to blow and throw the blocking stone into the hole;
[0025] In the midstream hole 2, the high-pressure wind direction is used to block the mold bag concrete, and the mold bag concrete 5 is ordinary concrete with ordinary grades packed in woven bags;
[0026] In the downstream hole 3, the betting stone is blocked with high-pressure air to form the betting stone area 6;
[0027] After the water seepage at the leakage point is significantly reduced, grout the upstream hole 1 and the middle hole 2 until the...
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