CN101701505B - Sleeve pore-fixing device and method - Google Patents
Sleeve pore-fixing device and method Download PDFInfo
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- CN101701505B CN101701505B CN200910035644A CN200910035644A CN101701505B CN 101701505 B CN101701505 B CN 101701505B CN 200910035644 A CN200910035644 A CN 200910035644A CN 200910035644 A CN200910035644 A CN 200910035644A CN 101701505 B CN101701505 B CN 101701505B
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Abstract
The invention relates to a sleeve pore-fixing device and method. The sleeve pore-fixing device adopts an inner pipe and a triangle flange, an inner pipe binding head, an inner pipe with holes as core parts, wherein the inner pipe with holes blocks large piece of rocks to enter the inner pipe and block a jet flow channel, the triangle flange of the inner pipe is connected with the outside and a diagonal draw anchor rod so as to increase the resistance and the reliability; simultaneously, an outer pipe and a triangle flange, the diagonal draw anchor rod, a pipe for grouting, a metal pipe internal thread connecting piece with a guide post are used as main parts, wherein the triangle flange of the outer pipe is connected with the diagonal draw anchor rod, the pipe for grouting is used to inject consolidated mortar between the inner pipe and the outer pipe so as to realize stable consolidation, the guide post is used to limit the sleeve to sink, reduce the frictional resistance when sending the sleeve and ensure that the mortar can be evenly consolidated on the sleeve. By using the sleeve pore-fixing device and method of the invention, the purpose of strengthening the rock formation and protecting the hole can be reached, and the safety of the hole, human body and other devices are ensured when the coal and gas rush repeatedly out the coal bed in the hole which is exited by human so as to realize to extract tens of thousands of coal from a single hole, and drain and relieve millions of cubic meters of gas.
Description
Technical field
The present invention relates to excite and keyhole coal and the outstanding solid hole of the layer-through drilling technology of gas the sleeve pore-fixing device and the method for the major diameter layer-through drilling that especially a kind of coal that is applicable to low-permeability, low-intensity, high gas and gas are projecting coal bed.
Background technology
Coal and gas are outstanding to be a big disaster of well worker Coal Production.Outstanding strong coal body destruction, coal and the gas of being accompanied by sprays; And form outburst hole and certain release scope, underground operators life and roadway and electromechanical equipment are damaged, even generation gas explosion; Enlarge the disaster scope, cause great casualties and property loss.Employing large diameter borehole walkthrough gas elimination coal and gas are given prominence at present, but difficult for outstanding serious coal seam large diameter borehole, and easy generation boring is outstanding, the present technical solution that also is difficult to; And it is outstanding to adopt hydraulic flushing in hole can cause coal-bed gas in advance, but outstanding can not effectively control, even bring out the coal and the gas burst accident of tunneling process.
Summary of the invention
Technical problem: the object of the invention provides a kind of reinforcement rockhole protection, strengthens the ability that the outstanding power destruction of opposing coal and gas, coal and gas jet flow are destroyed, and guarantees hole-drilling repeatedly gas injection, pressurize, safe and reliable sleeve pore-fixing device and the method for jet flow.
Technical scheme: sleeve pore-fixing device of the present invention: it comprises the segmentation of going deep in the petrosal foramen interior steel pipe that is threaded; The outer steel pipe that segmentation is threaded on the steel pipe in being sleeved on; Interior steel pipe is equipped with the triangle flange with the outer end of outer steel pipe; The folded inboard that leans against interior steel pipe triangle flange of the end face of outer steel pipe triangle flange; Be separately fixed at three of stretching in the rock stratum on three angles of folded two flanges that are close together and tiltedly draw on the anchor pole, the outer tube wall of outer steel pipe is provided with Grouting Pipe and polyurethane foam layer, through to boring and outside between steel pipe, outer steel pipe and the interior steel pipe injection mortar fixed; The inner of interior steel pipe is provided with interior pipe connector, is connected with the interior pipe that passes target coal seam on the interior pipe connector, and interior pipe external end head sealing also has a plurality of gas ports on tube wall; Be equipped with the metal internal thread tube connector of tape guide post between the pipeline section that steel pipe and outer steel pipe segmentation are threaded in said.
Sleeve pore-fixing method of the present invention:
A, press geological information data setting perforate center position, require lithology hard and steady, no crack zone of fracture;
B, confirm three armature boring positions, make a call to three armature borings that become 30 degree angles with the drill center line around drill center point with a standard triangle flange centering identical with inside and outside steel tube end part triangle flange size;
C, insert three threaded anchor poles that tiltedly draw in outer end in the armature boring successively respectively; Tiltedly draw anchor pole outer end thread segment to be fixed on the standard triangle flange with three respectively; Adjust three and tiltedly draw the anchor pole position, make the end face of standard triangle flange vertical with the drill center line;
D, tiltedly draw to three and to annotate mortar in the armature boring, the fixed anchor pole that tiltedly draws;
E, with the pore location perforate eye of sleeve pipe coring bit from standard triangle flange, creep into of the boring of a diameter through rig to the target coal seam direction greater than 200mm, disclosing target coal seam until drilling depth is that stopping bores;
F, unload the triangle flange, in boring, send into the outer steel pipe that the metal internal thread tube connector segmentation with lead is threaded, until with outer steel pipe near target coal seam till;
G, the screw of outer steel pipe outer end triangle flange is through tiltedly draws on the termination point of anchor rod threaded rod, fastening with nut,, the petrosal foramen aperture seals the aperture after inserting a wireway with the polyurethane expanded material; By conventional slug method, at the bottom of the outer tube pipe, make a call to a slug, through the anti-mortar of annotating of slug pipe, fixed outer tube;
H, outside under the water pipe precaution, continue to bore and pass through target coal seam;
I, outside under the water pipe precaution, the interior pipe of band gas port and the interior steel pipe that is threaded with the metal internal thread tube connector segmentation of tape guide post are sent in segmentation in boring, till the interior steel pipe of being with gas port passes target coal seam;
J, unload the nut on the triangle flange of outer steel pipe outer end, the screw of interior steel pipe outer end triangle flange is through tiltedly draws on the termination point of anchor rod threaded rod, fastening with nut, inject mortar in the slit through the inside steel pipe of Grouting Pipe and outer steel pipe, make interior steel pipe fixed.
Beneficial effect: adopt sleeve pore-fixing device and solid hole method; Penetrate the coal seam, as protection, strengthen the ability of outstanding power destruction of boring opposing coal and gas and coal-gas stream impact failure with the rock stratum; Utilization is worn layer large diameter borehole and is excited and control coal and outstanding coal mining and the mash gas extraction method of gas; It is outstanding to excite target coal seam in the boring that coal and gas take place repeatedly artificially, outstanding coal and gas two-phase flow is sprayed hole extraction coal; And in the coal seam, form outburst hole and big release scope, so that the extraction of gas pressure relief.Its design philosophy is novel, and apparatus structure is simple, and method is easy, is prone to construction, can realize ten thousand tons of single hole coal minings, the millions of cubic meters of pumping and mining pressure relief mash gas.
Description of drawings
Fig. 1 is the structure chart of sleeve pore-fixing device of the present invention.
Fig. 2 is the structure chart of the metal internal thread tube connector of tape guide post of the present invention.
Fig. 3 is the standard triangle flange structure chart that the inventive method is used.
Among the figure: steel pipe in the 1-; The outer steel pipe of 2-; The 3-Grouting Pipe; 4-polyurethane foam layer; 5-tiltedly draws anchor pole; Pipe connector in the 6-; The interior pipe of 7-band gas port; The metal internal thread tube connector of 8-tape guide post; 9-boring; The 10-target coal seam; 11-standard triangle flange.
The specific embodiment
Following structure accompanying drawing is done further to describe to one embodiment of the present of invention:
Shown in Figure 1; Sleeve pore-fixing device is mainly by interior steel pipe 1, outer steel pipe 2, tiltedly draw anchor pole 5, interior pipe connector 6 and interior pipe 7 to constitute; Interior steel pipe 1 segmentation is threaded and is embedded in the petrosal foramen 9; In being threaded and being sleeved on, outer steel pipe 2 segmentations outside the steel pipe 1, are equipped with the metal internal thread tube connector 8 of tape guide post between the pipeline section that interior steel pipe 1 and 2 segmentations of outer steel pipe are threaded; Interior steel pipe 1 is equipped with the triangle flange with the outer end of outer steel pipe 2; The folded inboard that leans against interior steel pipe 1 triangle flange of the end face of outer steel pipe 2 triangle flanges; Be separately fixed at three of stretching in the rock stratum on three angles of folded two flanges that are close together and tiltedly draw on the anchor pole 5, the outer tube wall of outer steel pipe 2 bore portions is provided with Grouting Pipe 3 and polyurethane foam layer 4; The inner of interior steel pipe 1 is provided with interior pipe connector 6, is connected with the interior pipe 7 that passes target coal seam 10 on the interior pipe connector 6, interior pipe 7 external end heads sealing, and on tube wall, have a plurality of gas ports.
Sleeve pore-fixing method of the present invention: press the geological information data, select the lane group of lithology hard and steady, no crack zone of fracture, set the perforate center position; Confirm three diagonal positions with standard triangle flange 11 centerings identical around drill center point with outer and inner tube end triangle flange size, make a call to three become with the drill center line 30 spend tiltedly draw armature boring 5; Three threaded anchor poles 5 that tiltedly draw in outer end are inserted in the boring successively, and the threaded rod of its outer end is connected on the standard triangle flange 11, adjusts three anchor pole positions, makes standard triangle flange surface vertical drilling center line; In three armature borings, annotate mortar successively, the fixed anchor pole 5 that tiltedly draws by routine with annotating the sand device; Pass through the perforate eye on the triangle flange by routine with the sleeve pipe coring bit, creep into the boring 9 of a diameter greater than 200mm through rig to the target coal seam direction, brill is deep to and discloses till the target coal seam 10; Unload the triangle flange, steel pipe 2 outside boring 9 segmentations are sent into 8 connections of metal internal thread tube connector and the sealing of tape guide post, prevents that outer tube is eccentric because of gravity, and reduces the frictional force when sending pipe between its pipeline section; The screw of outer steel pipe 2 outer end triangle flanges is to last anchor pole 5 screw threads that tiltedly draw, fastening with nut, and the aperture is sealed with polyurethane expanded material 4 after inserting a wireway in the petrosal foramen aperture.By the slug method of routine usefulness, at the bottom of the outer tube pipe, make a call to a slug, through the anti-mortar of annotating of slug pipe, fixed outer steel pipe 2; Under the protection of steel pipe 2, continue to bore target coal seam 10 thoroughly outside; Steel pipe 1 in the boring segmentation is sent into, with 8 connections of metal internal thread tube connector and the sealing of tape guide post, pipe is eccentric because of gravity in preventing between its pipeline section, and reduces the frictional force when sending pipe; The with holes interior pipe 7 that will be connected with interior pipe connector 6 through interior steel pipe 1 passes target coal seam 10, is with gas port on the external end head sealing of interior steel pipe 7, the tube wall, prevents that outstanding rock from stopping up interior pipe 1 jet flow passage; Unload the nut on the triangle flange of lower outer pipe outer end, the screw of interior pipe outer end triangle flange is to the last screw thread that tiltedly draws anchor pole 5, fastening with nut; Connect interior pipe with holes with interior pipe connector 6, and at the bottom of the hole, play the effect of the stifled mortar of resistance; Notes sandpipe 3 through outer tube injects mortar, and fixed interior steel pipe 1 is accomplished boring and solid hole process.
Claims (3)
1. sleeve pore-fixing device; It is characterized in that: it comprises the segmentation of going deep in the petrosal foramen (9) the interior steel pipe (1) that is threaded; Be sleeved on interior steel pipe (1) and go up the outer steel pipe (2) that segmentation is threaded; The outer end of interior steel pipe (1) and outer steel pipe (2) is equipped with the triangle flange, and the folded inboard that leans against interior steel pipe (1) triangle flange of the end face of outer steel pipe (2) triangle flange is folded and is separately fixed at three of stretching in the rock stratum on three angles of two flanges that are close together and tiltedly draws on the anchor pole (5); The outer tube wall of outer steel pipe (2) is provided with Grouting Pipe (3) and polyurethane foam layer (4), through to boring (9) with outside between steel pipe (2), outer steel pipe (2) and the interior steel pipe (1) the injection mortar fixed; The inner of interior steel pipe (1) is provided with interior pipe connector (6), is connected with the interior pipe (7) that passes target coal seam (10) on the interior pipe connector (6), and the sealing of interior pipe (7) external end head also has a plurality of gas ports on tube wall.
2. sleeve pore-fixing device according to claim 1 is characterized in that: the metal internal thread tube connector (8) that is equipped with the tape guide post between the pipeline section that steel pipe (1) and outer steel pipe (2) segmentation are threaded in said.
3. sleeve pore-fixing method according to the said device of claim 1 is characterized in that:
A, press geological information data setting perforate center position, require lithology hard and steady, no crack zone of fracture;
B, confirm three armature boring positions, make a call to three armature borings that become 30 degree angles with the drill center line around drill center point with standard triangle flange (a 11) centering identical with inside and outside steel tube end part triangle flange size;
C, insert three threaded anchor poles (5) that tiltedly draw in outer end in the armature boring successively respectively; Tiltedly draw anchor pole (5) outer end thread segment to be fixed on the standard triangle flange (11) with three respectively; Adjust three and tiltedly draw anchor pole (5) position, make the end face of standard triangle flange (11) vertical with the drill center line;
D, tiltedly draw to three and to annotate mortar in the armature boring, the fixed anchor pole (5) that tiltedly draws;
E, with the pore location perforate eye of sleeve pipe coring bit from standard triangle flange (11), creep into the boring (9) of diameter through rig to target coal seam (10) direction greater than 200mm, disclose target coal seam (10) until boring (9) degree of depth and be the stopping brill;
F, unload triangle flange (11), in boring (9), send into the outer steel pipe (2) that metal internal thread tube connector (8) segmentation with lead is threaded, until with outer steel pipe (2) near target coal seam (10) till;
G, the screw of outer steel pipe (2) outer end triangle flange is through tiltedly draws on the threaded rod of anchor pole (5) termination, fastening with nut,, the petrosal foramen aperture seals the aperture after inserting a wireway with polyurethane expanded material (4); By conventional slug method, at the bottom of the outer tube pipe, make a call to a slug, through the anti-mortar of annotating of slug pipe, fixed outer tube;
H, steel pipe (2) protection outside continue to bore target coal seam (10) thoroughly down;
I, steel pipe (2) protection outside down, the interior pipe (7) of band gas port and the interior steel pipe (1) that is threaded with metal internal thread tube connector (8) segmentation of tape guide post are sent in segmentation in boring, till the interior steel pipe (7) of being with gas port passes target coal seam (10);
J, unload the nut on the triangle flange of outer steel pipe (2) outer end; The screw of interior steel pipe (1) outer end triangle flange is through tiltedly draws on the threaded rod of anchor pole (5) termination; Fastening with nut, inject mortar in the slit through inside steel pipe (1) of Grouting Pipe (3) and outer steel pipe (2), make interior steel pipe (1) fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035644A CN101701505B (en) | 2009-09-30 | 2009-09-30 | Sleeve pore-fixing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035644A CN101701505B (en) | 2009-09-30 | 2009-09-30 | Sleeve pore-fixing device and method |
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| Publication Number | Publication Date |
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| CN101701505A CN101701505A (en) | 2010-05-05 |
| CN101701505B true CN101701505B (en) | 2012-10-24 |
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| CN200910035644A Expired - Fee Related CN101701505B (en) | 2009-09-30 | 2009-09-30 | Sleeve pore-fixing device and method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536115B (en) * | 2010-12-10 | 2014-06-25 | 淮南矿业(集团)有限责任公司 | Gas drainage borehole and construction method thereof |
| CN102587828B (en) * | 2012-03-06 | 2013-12-04 | 中国矿业大学 | Gas extraction and drilling cooperative drilling and protecting integrated system for soft coal seams and process |
| CN106761392A (en) * | 2016-12-20 | 2017-05-31 | 淮北矿业（集团）勘探工程有限责任公司 | It is a kind of for the hole structure with grouting filling in hyperbaric environment |
| CN107558983B (en) * | 2017-10-23 | 2023-10-13 | 河南理工大学 | Underground coal gasification coaxial pipeline device and gasification method thereof |
| CN113383696A (en) * | 2021-07-05 | 2021-09-14 | 薄海洋 | Automatic irrigation and monitoring system of green house based on wireless network deployment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029576A (en) * | 2007-04-02 | 2007-09-05 | 中国矿业大学 | Method and apparatus for protruding hazadous coal-bed safety guide-jet drilling |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029576A (en) * | 2007-04-02 | 2007-09-05 | 中国矿业大学 | Method and apparatus for protruding hazadous coal-bed safety guide-jet drilling |
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