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Deep imbedded underground water-permeable passage plugging method

A channel and downstream technology, which is applied in the field of underground permeable channel plugging and treatment, can solve problems such as damage to engineering facilities, scrapped life and property, and loss of underground engineering or mine facilities, so as to reduce the cost of plugging, reduce the workload of plugging, highly targeted effects

Active Publication Date: 2009-07-08
CHINA GEZHOUBA GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows an underground passageway that has been previously filled with rocks or other materials to be temporarily closed off during construction without affecting its functioning properly. By combining these techniques together it can improve plugging efficacy while reducing labor costs compared to traditional methods like filling them manually.

Problems solved by technology

The technical problem addressed by this patented technology relates to prevent damage caused during demolition work for underwater structures such as caves, mines, etc., while also ensuring safety measures can be taken against these threats without causing significant economic losses due to their potential impact on human health and environmental concerns over time.

Method used

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  • Deep imbedded underground water-permeable passage plugging method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[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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Abstract

The invention relates to a method for calking a deep underground nonwatertight channel, which adopts the technical proposal that the method comprises: measuring the flow velocity and the flow rate of leaked points of a main nonwatertight channel first; drilling three calking holes on the upstream, the midstream and the downstream of the nonwatertight channel, and selecting the particle diameter of calking materials to not more than one third of the aperture; using high-pressure blast to blow calking stone materials into an upstream hole; using the high-pressure blast to perform mold-bagged concrete calking on a midstream hole; using the high-pressure blast to throw the stone materials into a downstream hole for calking; and performing plaster slurry grouting on the upstream hole and the midstream hole after water seepage of the leaked points is obviously reduced until seeped water is completely calked. The method for calking the underground nonwatertight channel adopts a method for arranging the upstream hole, the midstream hole and the downstream hole and uses the stone materials, mold-bagged concrete and plaster slurry grouting to be combined with each other for calking the underground nonwatertight channel, has strong pertinence of drilling and calking, greatly improves the calking efficiency, and simultaneously reduces the calking workload and the calking cost.

Description

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Claims

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Application Information

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Owner CHINA GEZHOUBA GROUP CO LTD
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