CN105525891B - Aerating silication blocks the system and method for floor crack - Google Patents
Aerating silication blocks the system and method for floor crack Download PDFInfo
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- CN105525891B CN105525891B CN201610034198.4A CN201610034198A CN105525891B CN 105525891 B CN105525891 B CN 105525891B CN 201610034198 A CN201610034198 A CN 201610034198A CN 105525891 B CN105525891 B CN 105525891B
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- pipeline
- waterglass
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- feeding mechanism
- grouting
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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)
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- 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)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses the system and methods that a kind of aerating silication blocks floor crack, the system includes sealing device, waterglass feeding mechanism, carbon dioxide feeding mechanism and cleaning device, sealing device includes sealing ring and flange, drill hole is vertically installed on main pipeline, is sealed by sealing ring between main pipeline and the wall of a borehole；Two bypass lines are provided at the top of main pipeline, respectively first branch pipeline and the second branch pipeline, first branch pipeline is connect with waterglass feeding mechanism, and the second branch pipeline is connect with carbon dioxide feeding mechanism, and Na is provided respectively by waterglass feeding mechanism and carbon dioxide feeding mechanism2SiO3、CO2, to realize the closure to crack；Remaining waterglass is rinsed after cleaning device blocks crack after being used to block.The present invention can effectively block bottom plate slight crack, prevent artesian water from entering mine, have good application value.
Description
Technical field
The present invention relates to the filling technique fields of floor crack, and in particular to what a kind of aerating silication blocked floor crack is
System and method.
Background technology
With being continuously increased for coal mining depth, mining conditions, geological conditions become increasingly complex, working face extraction process
In, the problem of often encountering high artesian, this brings very big difficulty to safety in production, it is easy to Water Inrush accident occurs.
Currently, the researchers of this field solve above-mentioned ask typically by the way of drop forced-ventilated and mining under safe waterpressure of aquifer deeply
Topic, mining under safe waterpressure of aquifer therein can generally use the method for blocking floor crack, can prevent bottom plate artesian water from oozing so in the process
Enter working face, however when blocking floor crack, the injecting paste material of general mine selection is difficult to inject width splitting less than 60um
Gap, and when the crack of ground reaches 50um, water can be penetrated obviously, and the presence of slight crack makes high artesian burst into mine
Risk greatly improves, and therefore, is badly in need of a kind of better plugging system of plugging effect of searching and method.
Invention content
Incomplete problem is blocked for above-mentioned slight crack, the present invention proposes a kind of aerating silication closure floor crack
System and method, this method can effectively block bottom plate slight crack, prevent artesian water from entering mine, have good push away
Wide application value.
One of the task of the present invention is to provide a kind of system that aerating silication blocks floor crack.
A kind of system for blocking the destruction of bottom plate water guide and drilling with crack, including sealing device, waterglass feeding mechanism, dioxy
Change carbon feeding mechanism and cleaning device,
The sealing device includes sealing ring and flange, and the drill hole is vertically installed on main pipeline, the main pipeline with
It is sealed by the sealing ring between the wall of a borehole, the flange is reinforced at the main pipeline of plate top surface, and the flange is furnished with spiral shell
Main pipeline is fixed on drill hole by bolt by the way that flange and bolt cooperation are fixed, and by borehole sealing；
Two bypass lines, respectively first branch pipeline and the second branch pipeline are provided at the top of the main pipeline,
The first branch pipeline is connect with waterglass feeding mechanism, and the second branch pipeline is connect with carbon dioxide feeding mechanism,
Na is provided respectively by waterglass feeding mechanism and carbon dioxide feeding mechanism2SiO3、CO2, to realize the closure to crack；
Remaining waterglass is rinsed after the cleaning device blocks crack after being used to block.
In said program, the Na that is provided by waterglass feeding mechanism2SiO3, carbon dioxide feeding mechanism provide CO2,
It reacts after the two mixing and generates silicic acid, silicic acid can penetrate into micropore, make 95% or more floor crack by silicic acid
Filling.
As a preferred solution of the present invention, the waterglass feeding mechanism includes waterglass reservoir and grouting pump,
The bottom of the waterglass reservoir is connected by one end of the first grouting pipeline and grouting pump, and the other end of the grouting pump connects
It is connected to the second grouting pipeline, the first valve and first pressure gauge are provided on the second grouting pipeline, second grouting pipeline
The other end is connected to first branch pipeline.
As another preferred embodiment of the present invention, the carbon dioxide feeding mechanism includes carbon dioxide storage tank and gas transmission
The exit of pipeline, the air delivering pipeline and carbon dioxide storage tank connects, and the other end is connected on the second branch pipeline, institute
It states and is provided with the second valve and second pressure gauge on air delivering pipeline.
Preferably, it is provided on the main pipeline for controlling Na2SiO3And CO2The third valve of input.
Preferably, the cleaning device includes water filling bucket, and the exit below the water filling bucket connects water injecting pipeline, waits sealing
After stifled, the water injecting pipeline is connect with grouting pump.
Another task of the present invention is to provide a kind of method that aerating silication blocks floor crack.
The above method includes the following steps successively：
A finely detects bottom plate hydrogeologic condition, determines that the slip casting radius of bottom plate, slip casting depth determine silication
Reinforce the volume of rock；
B drills in backplane, and the length of main pipeline is determined according to the depth of the drilling, main pipeline is inserted perpendicularly into institute
Foot of hole is stated, is sealed by sealing ring between main pipeline and drilling, the main pipeline at bottom plate is solid by flange fitted bolt
It is fixed；
First branch pipeline and the second branch pipeline are provided at the top of c main pipelines, by first branch pipeline and waterglass
Feeding mechanism connects, and the second branch pipeline is connect with carbon dioxide feeding mechanism；
D is first turned on carbon dioxide feeding mechanism, when interior carbon dioxide hole to be drilled reaches certain pressure；Then water is opened
Glass feeding mechanism injects Na to drilling2SiO3, waterglass absorbs CO strongly2Vacuum action is formed, and is penetrated into micropore,
95% or more floor crack is set to be filled by silicic acid；
Chemical equation such as formula (1)
Na2SiO3+CO2+H2O=H2SiO3↓+Na2CO3；
After the completion of e slip castings, with cement mortar sealing of hole, water filling bucket is linked into main pipeline, main pipeline is cleaned up, to wait for
Next slip casting uses.
Preferably, every meter of grouting amount can be calculated by formula (2)：
Q=K × V × n × 1000 (2)
In formula：
Total dosage (L) of Q-waterglass；
Volume (the m of V-silicification rock3)；
The porosity (%) of n-ground；
K-empirical coefficient, in cohesive soil, packsand, K=0.3~0.5；In gritstone, K=0.5~0.7.
Compared with prior art, the present invention injects carbon dioxide and waterglass, the two processization into drilling by substep
Learn reaction Na2SiO3+CO2+H2O=H2SiO3↓+Na2CO3Silicic acid precipitation is generated, waterglass is by absorbing CO2, the silicic acid of generation is complete
Enter in floor crack entirely, silicic acid can be blocked by slight crack pack completeness of the width in bottom plate less than 60um up to 95% or more
Effect is good, nontoxic, free from environmental pollution, cheap.
Coordinated by waterglass feeding mechanism and carbon dioxide feeding mechanism, control the flow of waterglass and carbon dioxide,
The pressure gauge that is arranged on pipeline is observed to calculate required carbon dioxide input, realizes slip casting reaction.
The method of the present invention accurately detects seat earth note when seat earth hydrogeologic condition is finely detected
Radius is starched, has thus saved the use of material, slip casting effect more preferably, avoids the occurrence of part bored grouting and is not connected to, lead to crack
It blocks incomplete.
Grouting equipment of the present invention is simple, does not need the equipment such as blender, saves equipment cost, operation is simpler, required
Personnel are few, and general 2~4 people can be completed, and save personnel cost, and whole process can be completed in tunnel, need not open again
Chamber saves construction cost.
The present invention has many advantages, such as that safety and reliability is good, and construction method is simple, efficient, at low cost.
Description of the drawings
The present invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the structural schematic diagram of present system；
In figure, 1- waterglass reservoirs, 2- water filling buckets, 3- grouting pumps, 4- motors, 5- carbon dioxide storage tanks, 6- first
Road pipeline, 7, third valve, 8- flanges, 9- sealing rings, 10,11- valves, the first valves of 12-, 13- first pressure gauges, 14-
Two pressure gauges, the second valves of 15-, 16- bottom plate water guides destroy band, 17- main pipelines, the first grouting pipelines of 18-.
Specific implementation mode
It elaborates to the present invention with reference to specific embodiment.
As shown in Figure 1, the present invention, which blocks bottom plate water guide, destroys the system to drill with crack, it is mainly used for drilling to bottom plate
Crack is blocked, including sealing device, waterglass feeding mechanism, carbon dioxide feeding mechanism and cleaning device, drilling be
Bottom plate water guide destroys what punching vertically downward at the bottom plate of band 16 obtained.
Sealing device includes sealing ring 9 and flange 8, and drill hole is vertically installed on main pipeline 17, and main pipeline 17 extend into brill
The bottommost in hole, the effect of main pipeline 17 are to provide the channel of slip casting and carbon dioxide injection, lead between main pipeline 17 and the wall of a borehole
The sealing of sealing ring 9 is crossed, and flange 8 is reinforced at the main pipeline 17 of plate top surface, main pipeline fixed by the bolt coordinated with it
In drill hole, and by borehole sealing；The top of main pipeline 17 is provided with two bypass lines, two bypass lines and main pipeline 17
Y-type structure is formed, two bypass lines are respectively first branch pipeline 6 and the second branch pipeline.
Waterglass feeding mechanism, mainly by the waterglass reservoir 1 of offer waterglass and the slip casting for conveying waterglass
3 composition of pump, other components such as the first grouting pipeline 18 etc. can all carry out conventional replacement, as long as having the function of conveying waterglass
Just, shown in figure, first branch pipeline 6 is connect with the second grouting pipeline, and is provided with first on the second grouting pipeline
The other end of valve 12 and first pressure gauge 13, the second grouting pipeline is connect with one end of grouting pump 3, the other end of grouting pump 3
It is connect, certainly, is operated for the ease of grouting pump, grouting pump 3 is also equipped with motor with waterglass reservoir 1 by the first grouting pipeline
4。
Carbon dioxide feeding mechanism includes mainly carbon dioxide storage tank 5 and air delivering pipeline, and air delivering pipeline is stored up with carbon dioxide
The exit of tank 5 connects, and the other end is connected on the second branch pipeline, and the second valve 15 and the are provided on air delivering pipeline
Two pressure gauges 14.
Cleaning device includes water filling bucket 2, and the exit of 2 lower section of water filling bucket connects water injecting pipeline, waits after blocking, water filling
Pipeline is connect with grouting pump, and remaining waterglass is rinsed after being blocked to crack.
Preferably, being provided on main pipeline for controlling Na2SiO3And CO2The third valve 7 of input, for the ease of
The flow for controlling bath of glass and ejected wash water, is respectively arranged with valve 10 and valve 11 on the first grouting pipeline, water injecting pipeline.
The present invention, the method that aerating silication blocks floor crack, includes the following steps successively：
Step 1 finely detects seat earth hydrogeologic condition, determines the slip casting radius of bottom plate, slip casting depth,
Determine the volume of silicification rock；
Step 2, when it is above-mentioned finely detect up to standard after, slip casting is carried out to seat earth, it is specific as shown in Figure 1, blocking bottom
Plate water guide destroys the crack in band, including following sub-step：
Drilling machine or tripod are first placed in predetermined hole position by a, are mixed up height and angle, are drilled；
B determines that the length of main pipeline and first branch pipeline and the second branch pipeline, drilling are carried out according to slip casting depth
After；Main pipeline is inserted into drilling again, main pipeline keeps vertical and apart from correct, main pipeline and the wall of a borehole sealing ring 9
The destruction band of sealing, silicification should not reinforce rock stratum in its surface reservation 0.3m thickness, this part rock stratum is blocked with cement mortar,
To prevent being emitted on solution, aerating silication enhances its sealing effect and prevents the excessive main pipeline quilt of pressure in Grouting Pipe top addition orchid 8
Squeeze out drilling；
Carbon dioxide storage tank 5 is connected by the second branch pipeline with main pipeline by c, opens the second valve and third valve,
The first valve 12 is closed, first time CO is carried out2It deflates, at this time CO2Air pressure does not control, deflation time at second pressure gauge 14
About 10min；
Waterglass reservoir 1 is connected by d with main pipeline, when slip casting, first starts grouting pump 3, closes the second valve and third
Valve, valve 10 and the first valve 12 is fully open, after 1~2min of self-loopa, third valve 7 is slowly opened, while slowly
The first valve 12 is adjusted, adjustment pressure (generally 0.2~1.0Mpa), solution is injected through first branch pipeline 6 by main pipeline
Destroy band, commonly reach design grouting amount and stop slip casting, still filled when grouting pressure is more than 2~3 times of design pressure not into
It goes, you can terminate slip casting；
Every meter of grouting amount can be calculated as follows：Q=K × V × n × 1000
In formula：
Total dosage (L) of Q-solution；
Volume (the m of V-silicification rock3)；
The porosity (%) of n-ground；
K-empirical coefficient, cohesive soil, packsand；K=0.3~0.5；In, gritstone：K=0.5~0.7；
Second of CO is carried out after e slip castings2It deflates, this time CO at this time2Air pressure P2=0.1~0.2MPa.Deflation time is about
For 30min；
It after the completion of step 3, slip casting, is classified with jack by means of pile frame and extracts pipe, leaving voids cement mortar sealing of hole will
Scuttlebutt 2 is linked into grouting pump 3, and grouting pipe is cleaned up, to wait for that next slip casting uses.
Embodiment 1：
By taking certain one stope of coal mine as an example, in control face during bottom plate artesian water, to the coal mine work area
Bottom plate carries out aerating silication closure floor crack and illustrates：
The method that aerating silication blocks floor crack includes the following steps：
【Step 1】1201 floor undulation hydrogeologic conditions are finely detected, determine that the floor undulation is thick
Sandstone determines that slip casting radius is 1.5m, and slip casting total height is 5.8m；
【Step 2】When it is above-mentioned finely detect up to standard after, slip casting is carried out to seat earth, it is specific as shown in Figure 1, blocking
Bottom plate water guide destroys the crack in band, including following sub-step：
(1) drilling machine or tripod are first placed in predetermined hole position, mix up height and angle, drills；
(2) after being drilled according to the length of slip casting depth and every pipe；Grouting Pipe is inserted into drilling again, slip casting
Pipe keeps vertical and apart from correct, and Grouting Pipe is sealed with the wall of a borehole with sealing ring, and the destruction band of silicification is in the reservation of its surface
0.3m thickness does not reinforce rock stratum, this part rock stratum is blocked with cement mortar, and it is close to enhance its in Grouting Pipe top addition orchid for aerating silication
It seals effect and the excessive Grouting Pipe of pressure is prevented to be extruded drilling；
(3) carbon dioxide storage tank is connected with main pipeline, carries out first time CO2It deflates, deflation time 12min；
(4) waterglass reservoir is connected with main pipeline, when slip casting, first starts grouting pump, slowly Open valve, while is slow
Slow adjustment valve, adjusts pressure 1Mpa, and solution is injected by Grouting Pipe through Y type ball valve mixers and destroys band, reach design slip casting
Amount stops slip casting when being 2600L,
Every meter of grouting amount can be calculated as follows：Q=K × V × n × 1000
In formula：
Total dosage (L) of Q-solution；
Volume (the m of V-silicification soil3)；7.065m is taken herein3；
The porosity (%) of n-ground；9.02 are taken herein；
K-empirical coefficient, cohesive soil, packsand；K=0.3~0.5；In, gritstone：K=0.5~0.7；K takes in this formula
0.7；
(5) second of CO is carried out after noting2It deflates, this time CO at this time2Air pressure P2=0.2MPa, deflation time are
30min；
【Step 3】After the completion of slip casting, it is classified with jack by means of pile frame and extracts pipe, leaving voids cement mortar sealing of hole,
Scuttlebutt is linked into grouting pump, grouting pipe is cleaned up, to wait for that next slip casting uses.
Slip casting result：After this slip casting, through examining bottom plate water guide destruction band crack plugging effect good, crack sealing ratiod
Up to 97%, to have the function that block floor crack.
It should be noted that any equivalent way that those skilled in the art are made under the introduction of this specification, or
Obvious variant should all be within the scope of the present invention.
Claims (2)
1. a kind of bottom plate water guide that blocks destroys the method to drill with crack, which is characterized in that include the following steps successively：
A finely detects bottom plate hydrogeologic condition, determines that the slip casting radius of bottom plate, slip casting depth determine silicification
The volume of rock；
B drills in backplane, and the length of main pipeline is determined according to the depth of the drilling, main pipeline is inserted perpendicularly into the brill
Hole bottom is sealed between main pipeline and drilling by sealing ring, retains being not added with for 0.3m thickness in the destruction belt surface of silicification
Gu rock stratum, this part rock stratum is blocked with cement mortar, and the main pipeline at bottom plate is fixed by flange fitted bolt；
It is provided with first branch pipeline and the second branch pipeline at the top of c main pipelines, first branch pipeline and waterglass are supplied
Device connects, and the second branch pipeline is connect with carbon dioxide feeding mechanism；The waterglass feeding mechanism includes waterglass storage
The bottom of storage and grouting pump, the waterglass reservoir is connected by one end of the first grouting pipeline and grouting pump, the note
The other end of stock pump is connected with the second grouting pipeline, and the first valve and first pressure gauge are provided on the second grouting pipeline, described
The other end of second grouting pipeline is connected to first branch pipeline；The carbon dioxide feeding mechanism include carbon dioxide storage tank and
The exit of air delivering pipeline, the air delivering pipeline and carbon dioxide storage tank connects, and the other end is connected to the second branch pipeline
On, the second valve and second pressure gauge are provided on the air delivering pipeline；It is provided on the main pipeline for controlling waterglass
And CO2The third valve of input, is provided with the 4th valve on the first grouting pipeline；
D is first turned on carbon dioxide feeding mechanism, when interior carbon dioxide hole to be drilled reaches certain pressure；Then waterglass is opened
Feeding mechanism injects waterglass to drilling, and waterglass absorbs CO strongly2Vacuum action is formed, and is penetrated into micropore, is made
95% or more floor crack is filled by silicic acid；When slip casting, grouting pump is first started, the second valve and third valve is closed, beats
It opens the first valve and the 4th valve, after 1~2min of self-loopa, opens third valve, while adjusting the first valve, adjustment pressure is
0.2~1.0Mpa, solution are injected by main pipeline through first branch pipeline and destroy band, are reached design grouting amount or are worked as slip casting pressure
Power still fills to enter when being more than 2 times of design pressure value, you can stops slip casting；
Chemical equation such as formula (1)：
Na2SiO3+CO2+H2O=H2SiO3↓+Na2CO3；
After the completion of e slip castings, with cement mortar sealing of hole, water filling bucket is linked into main pipeline, main pipeline is cleaned up, to wait for next time
Slip casting uses.
2. the bottom plate water guide according to claim 1 that blocks destroys the method to drill with crack, which is characterized in that every meter of slip casting
Amount can be calculated by formula (2)：
Q=K × V × n × 1000 (2)；
In formula：
Total dosage of Q-waterglass, unit L；
The volume of V-silicification rock, unit m3；
The porosity of n-ground；
K-empirical coefficient, in cohesive soil, packsand, K=0.3~0.5；In gritstone, K=0.5~0.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610034198.4A CN105525891B (en) | 2016-01-19 | 2016-01-19 | Aerating silication blocks the system and method for floor crack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610034198.4A CN105525891B (en) | 2016-01-19 | 2016-01-19 | Aerating silication blocks the system and method for floor crack |
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| Publication Number | Publication Date |
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| CN105525891A CN105525891A (en) | 2016-04-27 |
| CN105525891B true CN105525891B (en) | 2018-08-10 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6381191A (en) * | 1986-09-25 | 1988-04-12 | Kyokado Eng Co Ltd | Production device for impregnating material for ground |
| CN103628846B (en) * | 2012-08-20 | 2016-10-19 | 中国石油化工股份有限公司 | A kind of raising low-permeability oil deposit CO2the method driving efficiency |
| US9909052B2 (en) * | 2012-12-20 | 2018-03-06 | Lawrence Livermore National Security, Llc | Using colloidal silica as isolator, diverter and blocking agent for subsurface geological applications |
| CN104653220A (en) * | 2013-11-20 | 2015-05-27 | 西安大昱光电科技有限公司 | Gas extraction sealing mechanism |
| CN104481580B (en) * | 2014-12-23 | 2016-08-17 | 河南理工大学 | A kind of down-hole coal bed mash gas pumping drilling restorative procedure and the device of use thereof |
| CN205349294U (en) * | 2016-01-19 | 2016-06-29 | 山东科技大学 | System for air entrainment silication shutoff floor crack |
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