CN105888605A - Device and method for simulating pressurized grouting to plug drilled coal and rock fractures - Google Patents
Device and method for simulating pressurized grouting to plug drilled coal and rock fractures Download PDFInfo
- Publication number
- CN105888605A CN105888605A CN201610421583.4A CN201610421583A CN105888605A CN 105888605 A CN105888605 A CN 105888605A CN 201610421583 A CN201610421583 A CN 201610421583A CN 105888605 A CN105888605 A CN 105888605A
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- China
- Prior art keywords
- pipe
- grouting
- borehole simulation
- borehole
- crack
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention provides a device and a method for simulating pressurized grouting to plug drilled coal and rock fractures. The device comprises a horizontally arranged casing, wherein an end cover is screwed to each of two ends of the casing; a borehole simulation pipe penetrating through the two end covers is inserted into the casing; fractures are formed in the pipe wall of the borehole simulation pipe; a ring-shaped space between the casing and the borehole simulation pipe is filled with fillers; a sealing plug is arranged at each of two ends of the borehole simulation pipe; a grouting pipe penetrating through the sealing plugs is inserted in one end of the borehole simulation pipe; one end of the grouting pipe stretches into the borehole simulation pipe, and the other end of the grouting pipe is connected with a pump; a lifting support is connected to the lower part of the casing in a fastened manner. According to the device and the method, as the borehole simulation pipe is inserted into the casing, the fractures are formed in the pipe wall of the borehole simulation pipe, the grouting pipe is inserted into the borehole simulation pipe and is connected with the pump, the lifting support is arranged at the lower part of the casing, and influence of different factors such as coal and rock fracture sizes, borehole dip angles, grouting pressure, grouting modes and slurry properties on the hole-sealing coal and rock fracture plugging effect can be simulated.
Description
Technical field
The present invention relates to the device and method in a kind of analog band pressure grouting closure boring coal petrography crack, belong to field, colliery.
Background technology
In the work such as coal mine underground coal bed gas pressure measurement, gas pumping, coal-bed flooding and coal petrography grouting and reinforcing, often
Need to carry out in the borehole the work in band pressure grouting closure boring coal petrography crack around.Coal petrography crack size, dip angle of hole,
The different factor such as grouting pressure, grouting mode and slurries character all can affect the expansion around boring in coal petrography of institute's injection slurry
The scope of dissipating and crack plugging effect.And the above-mentioned different factor impacts on sealing of hole borehole fissure of site inspection, the most time-consuming
Arduously, and be difficult to observe intuitively preferable slip casting dilation angle and closure crack situation.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of simple in construction and experimental result analog band pressure injection intuitively
The device and method in slurry closure boring coal petrography crack.
For achieving the above object, the present invention takes techniques below scheme: a kind of analog band pressure grouting closure boring coal petrography splits
The device of gap, it is characterised in that: it includes the sleeve pipe of a horizontal positioned and open at both ends, divides at the two ends of described sleeve pipe
Do not screw togather an end cap；An open at both ends of planting in described sleeve pipe and run through the borehole simulation pipe of end cap described in two, described
Some cracks it are provided with on the tube wall of borehole simulation pipe；Inner tubal wall and the outer tube of described borehole simulation pipe at described sleeve pipe
Annular space between wall is provided with filler；It is respectively provided with a sealing-plug, described at the two ends of described borehole simulation pipe
In borehole simulation pipe wherein one end, plant one runs through the Grouting Pipe of described sealing-plug, and one end of described Grouting Pipe extend into institute
Stating in borehole simulation pipe, the other end of described Grouting Pipe and a pump housing connect；It is fastenedly connected with in the bottom of described sleeve pipe
Liftable bearing.
Described filler is mixed by cinder and window screening fragment.
Described sleeve pipe uses PVC material to make.
At described end cap, it is fastenedly connected with sealing ring at the two ends of described borehole simulation pipe.
In described Grouting Pipe, one end of the described pump housing is provided with valve.
Described liftable bearing is provided with the regulation handle of regulation adjustable height.
The surface smear of described sealing-plug has polyurethane A, B to expect.
A kind of analog band pressure grouting blocks the method in boring coal petrography crack, and it comprises the following steps:
1) angle of inclination by liftable bearing adjusting sleeve pipe is needed according to experiment；
2) in borehole simulation pipe, band pressure grouting is injected by Grouting Pipe；
3) injection slurry is penetrated in filler by the pipe wall crack of borehole simulation pipe under pressure；
4) observe grouting pressure, after grouting pressure reaches setting value, stablize slip casting a period of time, when grouting pressure is steady
When persistently rising suddenly after fixed, stop slip casting；
5) after injection slurry closure pipe wall crack cooled and solidified, sleeve pipe is truncated into many by the axis direction being perpendicular to sleeve pipe
Section, and observe injection slurry around borehole simulation pipe section and spread scope and closure crack situation.
Due to the fact that and take above technical scheme, it has the advantage that 1, due to the fact that and be plugged with in sleeve pipe
Borehole simulation pipe, is provided with crack on the tube wall of borehole simulation pipe, is plugged with Grouting Pipe in borehole simulation pipe, note
The slurry Guan Yuyi pump housing connects, and is provided with liftable bearing in the bottom of sleeve pipe, and therefore apparatus of the present invention can be simulated coal petrography and split
Sealing of hole coal petrography crack is blocked by the different factor such as gap size, dip angle of hole, grouting pressure, grouting mode and slurries character
The impact of effect.2, apparatus of the present invention are multiple functional, easy to operate, simple in construction and experimental result directly perceived.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of apparatus of the present invention.
Detailed description of the invention
With embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, the present invention includes the sleeve pipe 1 of a horizontal positioned and open at both ends, at the two ends of sleeve pipe 1 respectively
Screw togather an end cap 2.An open at both ends of planting in sleeve pipe 1 and run through the borehole simulation pipe 3 of two end cap 2, borehole simulation
Some cracks it are provided with, for simulating boring coal petrography crack around on the tube wall of pipe 3.Sleeve pipe 1 inner tubal wall with
Annular space between the outer tube wall of borehole simulation pipe 3 is provided with filler 4.Set respectively at the two ends of borehole simulation pipe 3
Put a sealing-plug 5.In borehole simulation pipe 3 wherein one end, plant one runs through the Grouting Pipe 6 of sealing-plug 5, Grouting Pipe 6
One end extend in borehole simulation pipe 3, the other end and connects for the pump housing 7 pumping into slurry.At sleeve pipe 1
Bottom is fastenedly connected with liftable bearing 10.
In above-described embodiment, filler 4 is mixed by cinder 41 and window screening fragment 42.
In above-described embodiment, sleeve pipe 1 uses PVC material to make.
In above-described embodiment, at end cap 2, it is fastenedly connected with sealing ring 8 at the two ends of borehole simulation pipe 3.
In above-described embodiment, in Grouting Pipe 6, one end of the pump housing 7 is provided with valve 9.
In above-described embodiment, liftable bearing 10 is provided with the regulation handle 11 of regulation adjustable height.
In above-described embodiment, polyurethane A, B material can be smeared in the surface of sealing-plug 5, makes sealing more firm.
Present invention additionally comprises a kind of analogy method, it comprises the following steps:
1, the angle of inclination by liftable bearing 10 adjusting sleeve pipe 1 is needed according to experiment；
2, in borehole simulation pipe 3, band pressure grouting is injected by Grouting Pipe 6；
3, injection slurry can be penetrated in filler 4 by the pipe wall crack of borehole simulation pipe 3 under pressure；
4, observe grouting pressure, after grouting pressure reaches setting value, stablize slip casting a period of time, when grouting pressure is steady
When persistently rising suddenly after fixed, stop slip casting；
5, after injection slurry closure pipe wall crack cooled and solidified, it is perpendicular to the axis direction of sleeve pipe 1 by sleeve pipe 1 section
For multistage, and observe injection slurry around borehole simulation pipe 3 section and spread scope and closure crack situation.
The various embodiments described above are merely to illustrate the present invention, and the structure of the most each parts, connected mode etc. are all can be
Change, every equivalents carried out on the basis of technical solution of the present invention and improvement, the most should not get rid of at this
Outside bright protection domain.
Claims (8)
1. the device in an analog band pressure grouting closure boring coal petrography crack, it is characterised in that: it includes that a level is put
Put and the sleeve pipe of open at both ends, screw togather an end cap respectively at the two ends of described sleeve pipe；Described sleeve pipe is planted two ends
Uncovered and run through the borehole simulation pipe of end cap described in two, the tube wall of described borehole simulation pipe is provided with some cracks；?
Annular space between inner tubal wall and the outer tube wall of described borehole simulation pipe of described sleeve pipe is provided with filler；At described brill
Casement is intended the two ends of pipe and is respectively provided with a sealing-plug, and in described borehole simulation pipe wherein one end, plant one runs through described close
The Grouting Pipe of blocking, one end of described Grouting Pipe extend in described borehole simulation pipe, the other end of described Grouting Pipe with
One pump housing connects；It is fastenedly connected with liftable bearing in the bottom of described sleeve pipe.
The device in a kind of analog band pressure grouting the most as claimed in claim 1 closure boring coal petrography crack, its feature exists
In: described filler is mixed by cinder and window screening fragment.
The device in a kind of analog band pressure grouting the most as claimed in claim 1 closure boring coal petrography crack, its feature exists
In: described sleeve pipe uses PVC material to make.
The device in a kind of analog band pressure grouting the most as claimed in claim 1 closure boring coal petrography crack, its feature exists
In: at described end cap, it is fastenedly connected with sealing ring at the two ends of described borehole simulation pipe.
The device in a kind of analog band pressure grouting the most as claimed in claim 1 closure boring coal petrography crack, its feature exists
In: in described Grouting Pipe, one end of the described pump housing is provided with valve.
The device in a kind of analog band pressure grouting the most as claimed in claim 1 closure boring coal petrography crack, its feature exists
In: on described liftable bearing, it is provided with the regulation handle of regulation adjustable height.
The device in a kind of analog band pressure grouting the most as claimed in claim 1 closure boring coal petrography crack, its feature exists
In: the surface smear of described sealing-plug has polyurethane A, B to expect.
8. analog band pressure grouting based on device described in any one of a claims 1～7 closure boring coal petrography splits
The method of gap, it comprises the following steps:
1) angle of inclination by liftable bearing adjusting sleeve pipe is needed according to experiment；
2) in borehole simulation pipe, band pressure grouting is injected by Grouting Pipe；
3) injection slurry is penetrated in filler by the pipe wall crack of borehole simulation pipe under pressure；
4) observe grouting pressure, after grouting pressure reaches setting value, stablize slip casting a period of time, when grouting pressure is steady
When persistently rising suddenly after fixed, stop slip casting；
5) after injection slurry closure pipe wall crack cooled and solidified, sleeve pipe is truncated into many by the axis direction being perpendicular to sleeve pipe
Section, and observe injection slurry around borehole simulation pipe section and spread scope and closure crack situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610421583.4A CN105888605A (en) | 2016-06-15 | 2016-06-15 | Device and method for simulating pressurized grouting to plug drilled coal and rock fractures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610421583.4A CN105888605A (en) | 2016-06-15 | 2016-06-15 | Device and method for simulating pressurized grouting to plug drilled coal and rock fractures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105888605A true CN105888605A (en) | 2016-08-24 |
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ID=56729392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610421583.4A Pending CN105888605A (en) | 2016-06-15 | 2016-06-15 | Device and method for simulating pressurized grouting to plug drilled coal and rock fractures |
Country Status (1)
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| CN (1) | CN105888605A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938602A (en) * | 2017-11-20 | 2018-04-20 | 长江勘测规划设计研究有限责任公司 | A kind of method and enclosed construction for handling the roomy crack of rock mass |
| CN110108838A (en) * | 2019-04-24 | 2019-08-09 | 山东科技大学 | A kind of simulation experiment method of directional drilling grouting serous fluid diffusion |
| CN110927018A (en) * | 2019-12-12 | 2020-03-27 | 山东科技大学 | Simulation model for water-borne microparticle migration process in coal fracture structure and use method |
| CN113533693A (en) * | 2021-07-19 | 2021-10-22 | 核工业井巷建设集团有限公司 | Thixotropic slurry rock-carrying capacity simulation test platform |
| CN114814094A (en) * | 2022-04-13 | 2022-07-29 | 西安科技大学 | Experimental device and experimental method for visually simulating gas drilling and sealing |
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| RU2272909C2 (en) * | 2004-05-18 | 2006-03-27 | Институт проблем комплексного освоения недр Российской академии наук (ИПКОН РАН) | Method to apply action to coal bed |
| CN202628025U (en) * | 2012-02-16 | 2012-12-26 | 山西潞安环保能源开发股份有限公司 | Experiment device capable of simulating sealing of hole |
| CN204571918U (en) * | 2015-04-20 | 2015-08-19 | 河南理工大学 | A kind of yolk coal rock mass gradation hole-sealing grouting simulation test apparatus |
| CN204882547U (en) * | 2015-08-12 | 2015-12-16 | 河海大学 | Side slope model test device is consolidated to grouting |
| CN205714091U (en) * | 2016-06-15 | 2016-11-23 | 华北科技学院 | The device in analog band pressure grouting closure boring coal petrography crack |
-
2016
- 2016-06-15 CN CN201610421583.4A patent/CN105888605A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2272909C2 (en) * | 2004-05-18 | 2006-03-27 | Институт проблем комплексного освоения недр Российской академии наук (ИПКОН РАН) | Method to apply action to coal bed |
| CN202628025U (en) * | 2012-02-16 | 2012-12-26 | 山西潞安环保能源开发股份有限公司 | Experiment device capable of simulating sealing of hole |
| CN204571918U (en) * | 2015-04-20 | 2015-08-19 | 河南理工大学 | A kind of yolk coal rock mass gradation hole-sealing grouting simulation test apparatus |
| CN204882547U (en) * | 2015-08-12 | 2015-12-16 | 河海大学 | Side slope model test device is consolidated to grouting |
| CN205714091U (en) * | 2016-06-15 | 2016-11-23 | 华北科技学院 | The device in analog band pressure grouting closure boring coal petrography crack |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938602A (en) * | 2017-11-20 | 2018-04-20 | 长江勘测规划设计研究有限责任公司 | A kind of method and enclosed construction for handling the roomy crack of rock mass |
| CN110108838A (en) * | 2019-04-24 | 2019-08-09 | 山东科技大学 | A kind of simulation experiment method of directional drilling grouting serous fluid diffusion |
| CN110108838B (en) * | 2019-04-24 | 2020-09-29 | 山东科技大学 | Simulation test method for directional drilling grouting slurry diffusion |
| CN110927018A (en) * | 2019-12-12 | 2020-03-27 | 山东科技大学 | Simulation model for water-borne microparticle migration process in coal fracture structure and use method |
| CN110927018B (en) * | 2019-12-12 | 2022-08-23 | 山东科技大学 | Simulation model for water-borne microparticle migration process in coal fracture structure and use method |
| CN113533693A (en) * | 2021-07-19 | 2021-10-22 | 核工业井巷建设集团有限公司 | Thixotropic slurry rock-carrying capacity simulation test platform |
| CN114814094A (en) * | 2022-04-13 | 2022-07-29 | 西安科技大学 | Experimental device and experimental method for visually simulating gas drilling and sealing |
| CN114814094B (en) * | 2022-04-13 | 2024-03-01 | 西安科技大学 | Visual experiment device and experiment method for simulating gas drilling and hole sealing |
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Application publication date: 20160824 |
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