CN114263444A - Simple processing method for preventing air leakage of drill hole - Google Patents
Simple processing method for preventing air leakage of drill hole Download PDFInfo
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- CN114263444A CN114263444A CN202111510747.8A CN202111510747A CN114263444A CN 114263444 A CN114263444 A CN 114263444A CN 202111510747 A CN202111510747 A CN 202111510747A CN 114263444 A CN114263444 A CN 114263444A
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Abstract
The invention discloses a simple processing method for preventing air leakage of a drill hole, which comprises the following steps: (1) arranging a grouting pipe and a slurry returning pipe; (2) installing an inner cotton yarn sleeve; (3) adding Mary powder into Mary powder; (4) installing an outer end cotton yarn sleeve; (5) grouting is carried out after the Mary powder is fully mixed and expanded, and grouting is stopped after a grout return pipe returns grout; (6) and after the slurry is solidified, the air leakage treatment of the drill hole is finished, and the drainage of the drill hole is recovered. The plugging method is simple, and the plugging is effective and reliable.
Description
Technical Field
The invention relates to a simple treatment method for preventing air leakage of a drill hole, and belongs to the technical field of air leakage plugging of the drill hole.
Background
At present, a hole sealing process of 'two-plugging one-injecting' is common, a hole sealing device is adopted for sealing holes, cement mortar, a quick-setting hole sealing agent and the like are used as grouting materials for drilling and sealing and pumping, the phenomena of sealing and pumping or drilling air leakage still exist due to the development of coal or surrounding rock cracks, improper operation of workers in the hole sealing process, process defects and the like, the air leakage drill hole is not effectively treated, the pumping and discharging effect is poor, even scrapped, the re-construction is not needed, the gas control cost is increased, the construction period is prolonged, and adverse effects are caused on the gas control and the safe production.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a simple processing method for preventing air leakage of a drill hole, which aims to solve the technical problems in the prior art.
The technical scheme adopted by the invention is as follows: a simple treatment method for preventing gas leakage from a drilled hole, the method comprising the steps of:
(1) aiming at the air leakage drilling after the hole sealing and the pumping, firstly, a grouting pipe and a slurry return pipe are bound on an orifice PVC pumping pipe, the slurry return pipe orifice of an ascending hole is in front, and the grouting pipe orifice is behind; the downstream hole grouting pipe orifice is in front, and the slurry return pipe orifice is behind;
(2) cotton yarn sleeves with the length of 100mm-200mm are wound on the orifice drawing-releasing pipe, the grouting pipe and the pulp returning pipe, and the cotton yarn sleeves with the length of 100mm-200mm are pushed to the position of 680-720mm in the hole by utilizing a push rod;
(3) feeding the two uniformly mixed Mary powder bags into the hole at a position of 100-200 mm, and ensuring that the Mary powder bags are positioned at two sides of the pumping and releasing pipe;
(4) quickly winding cotton yarn sleeves with the length of 100mm-200mm on the orifice drawing-off pipe, the grouting pipe and the pulp returning pipe, tightly binding and tightly plugging the orifices;
(5) after the mary powder is fully mixed and expanded, grouting is carried out through an orifice grouting pipe, the grouting is carried out by adopting cement mortar and a quick-setting hole sealing agent, and the grouting is stopped after a slurry return pipe returns slurry;
(6) and after the slurry is solidified, the air leakage treatment of the drill hole is finished, and the drainage of the drill hole is recovered.
When drilling and sealing holes, a measure space of 2m is reserved in the hole opening.
The invention has the beneficial effects that: compared with the prior art, the plugging method is simple, and the plugging is effective and reliable; the extraction effect of the treated gas leakage drill hole is obviously improved, the gas concentration is low and generally less than 10 percent before the gas leakage drill hole is treated by the method, the gas concentration is obviously improved after the gas leakage drill hole is blocked by the method, the concentration of the drill hole reaches more than 60 percent, the gas extraction amount is improved, the extraction effect is improved, the cost of secondary construction drilling is saved, the construction period of gas treatment is ensured, and powerful conditions are created for realizing 'pumping, digging and mining balance'.
Drawings
Figure 1 is a schematic view of the plugging structure of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1, a simple processing method for preventing air leakage of a drilled hole comprises a plugging structure, wherein the plugging structure comprises a grouting pipe 1, a slurry returning pipe 2, an internal cotton yarn sleeve 3, a Mary scattered plugging section 4, an external end cotton yarn sleeve 5 and a cement plugging section 6, the grouting pipe 1 extends into an inner hole, the inner end of the grouting pipe is close to an original plugging section 7, the slurry returning pipe 2 extends into the inner hole, the inner end of the internal cotton yarn sleeve 3 penetrates through the inner end of the internal cotton yarn sleeve 3, the Mary scattered plugging section 4 and the external end cotton yarn sleeve 5 are plugged at a drilled hole from inside to outside, and the drilled hole is formed in a roadway wall 8, and the method comprises the following specific steps:
in order to prevent air leakage of the drill hole and meet the requirement of post-measure treatment, 2m measure space is reserved in the hole opening when the drill hole is sealed; because the orifice is installed and is prevented orifice device when the construction is bored, orifice 1000mm scope aperture is great, is greater than 120 mm.
(1) Aiming at the air leakage drilling after the hole sealing and the pumping, firstly, a grouting pipe and a slurry return pipe are bound on an orifice PVC pumping pipe, the slurry return pipe orifice of an ascending hole is in front, and the grouting pipe orifice is behind; the downstream hole grouting pipe orifice is in front, and the slurry return pipe orifice is behind;
(2) cotton yarn sleeves with the length of 100mm-200mm are wound on the orifice drawing-releasing pipe, the grouting pipe and the pulp returning pipe, and the cotton yarn sleeves with the length of 100mm-200mm are pushed to the position of 680-720mm in the hole by utilizing a push rod;
(3) feeding the two uniformly mixed Mary powder bags into the hole at a position of 100-200 mm, and ensuring that the Mary powder bags are positioned at two sides of the pumping and releasing pipe;
(4) quickly winding cotton yarn sleeves with the length of 100mm-200mm on the orifice drawing-off pipe, the grouting pipe and the pulp returning pipe, tightly binding and tightly plugging the orifices;
(5) after the mary powder is fully mixed and expanded, grouting is carried out through an orifice grouting pipe, the grouting is carried out by adopting cement mortar and a quick-setting hole sealing agent, and the grouting is stopped after a slurry return pipe returns slurry;
(6) and after the slurry is solidified, the air leakage treatment of the drill hole is finished, and the drainage of the drill hole is recovered.
The optimal length sizes of the inner cotton yarn sleeve 3, the Mary scattered plugging section 4 and the outer end cotton yarn sleeve 5 are 200mm, 500mm and 200mm, after the inner cotton yarn sleeve 3, the Mary scattered plugging section 4 and the outer end cotton yarn sleeve 5 are plugged, grouting is carried out by adopting a grouting pipe, and when grouting slurry returns from a slurry return pipe, plugging of inner cement or a quick-setting hole sealing agent can be realized.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.
Claims (2)
1. A simple processing method for preventing air leakage of a drill hole is characterized by comprising the following steps: the method comprises the following steps:
(1) aiming at the air leakage drilling after the hole sealing and the pumping, firstly, a grouting pipe and a slurry return pipe are bound on an orifice PVC pumping pipe, the slurry return pipe orifice of an ascending hole is in front, and the grouting pipe orifice is behind; the downstream hole grouting pipe orifice is in front, and the slurry return pipe orifice is behind;
(2) cotton yarn sleeves with the length of 100mm-200mm are wound on the orifice drawing-releasing pipe, the grouting pipe and the pulp returning pipe, and the cotton yarn sleeves with the length of 100mm-200mm are pushed to the position of 680-720mm in the hole by utilizing a push rod;
(3) feeding the two uniformly mixed Mary powder bags into the hole at a position of 100-200 mm, and ensuring that the Mary powder bags are positioned at two sides of the pumping and releasing pipe;
(4) quickly winding cotton yarn sleeves with the length of 100mm-200mm on the orifice drawing-off pipe, the grouting pipe and the pulp returning pipe, tightly binding and tightly plugging the orifices;
(5) after the mary powder is fully mixed and expanded, grouting is carried out through an orifice grouting pipe, the grouting is carried out by adopting cement mortar and a quick-setting hole sealing agent, and the grouting is stopped after a slurry return pipe returns slurry;
(6) and after the slurry is solidified, the air leakage treatment of the drill hole is finished, and the drainage of the drill hole is recovered.
2. The simple treatment method for preventing the air leakage of the drill hole as claimed in claim 1, wherein: when drilling and sealing holes, a measure space of 2m is reserved in the hole opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510747.8A CN114263444A (en) | 2021-12-10 | 2021-12-10 | Simple processing method for preventing air leakage of drill hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510747.8A CN114263444A (en) | 2021-12-10 | 2021-12-10 | Simple processing method for preventing air leakage of drill hole |
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| Publication Number | Publication Date |
|---|---|
| CN114263444A true CN114263444A (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111510747.8A Pending CN114263444A (en) | 2021-12-10 | 2021-12-10 | Simple processing method for preventing air leakage of drill hole |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114118A (en) * | 2015-08-21 | 2015-12-02 | 贵州大学 | Flat hole gas extraction structure and implementing method thereof |
| CN106884624A (en) * | 2017-03-29 | 2017-06-23 | 淮南矿业(集团)有限责任公司 | A kind of area of stress concentration crushed zone drilling and sealing device and method for sealing |
| CN107542486A (en) * | 2017-09-30 | 2018-01-05 | 西安科技大学 | Drilling gas extraction laboratory analog system and method |
| CN112814615A (en) * | 2021-01-07 | 2021-05-18 | 淮南矿业(集团)有限责任公司 | Underground geological structure area forward drilling hole grouting sealing method |
-
2021
- 2021-12-10 CN CN202111510747.8A patent/CN114263444A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114118A (en) * | 2015-08-21 | 2015-12-02 | 贵州大学 | Flat hole gas extraction structure and implementing method thereof |
| CN106884624A (en) * | 2017-03-29 | 2017-06-23 | 淮南矿业(集团)有限责任公司 | A kind of area of stress concentration crushed zone drilling and sealing device and method for sealing |
| CN107542486A (en) * | 2017-09-30 | 2018-01-05 | 西安科技大学 | Drilling gas extraction laboratory analog system and method |
| CN112814615A (en) * | 2021-01-07 | 2021-05-18 | 淮南矿业(集团)有限责任公司 | Underground geological structure area forward drilling hole grouting sealing method |
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