CN110108838A - A kind of simulation experiment method of directional drilling grouting serous fluid diffusion - Google Patents
A kind of simulation experiment method of directional drilling grouting serous fluid diffusion Download PDFInfo
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- CN110108838A CN110108838A CN201910331147.1A CN201910331147A CN110108838A CN 110108838 A CN110108838 A CN 110108838A CN 201910331147 A CN201910331147 A CN 201910331147A CN 110108838 A CN110108838 A CN 110108838A
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- branched hole
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The invention discloses a kind of simulation experiment methods of directional drilling grouting serous fluid diffusion, belong to the technical field of mine water disaster grouting treatment.Its used pilot system includes slip casting experimental bench, branched hole crack simulation system, control system, grouting system and real-time monitoring system, pass through the magnetic-adsorption branched hole crack mold on experimental bench ontology, the transformation that can make experimental bench ontology realization multi-angle by rotary shaft rotation, to realize the simulation of branched hole difference crack type.The present invention can in prefabricated directional drilling different branched holes lay and pitch-row under rock cranny, the slurries Diffusion Law in directional drilling under different angle branched hole can be achieved, different cracks type, roughness, fracture opening under analog branched hole, the research of slurries Diffusion Law under grouting pressure, concentration of slurry, the effect of visualization of slurries diffusion path and range in branch hole can be achieved, extend influence factor for intuitive research directional drilling grouting serous fluid and rule provides safeguard.
Description
Technical field
The present invention relates to the technical fields of mine water disaster grouting treatment, and in particular to the mould of directional drilling grouting serous fluid diffusion
Quasi- test method.
Background technique
With the exhaustion of superficial part coal resources and the high tension coal mining of Coal Mechanical, many mines in China are transferred to depth in succession
The exploitation in portion and the following group coal.It is counted according to " BP world energy sources statistical yearbook (2018) ", China 1000m coal resources accounting below
More than 50%, but deep hydrogeologic condition is increasingly complex compared with superficial part, and buried structure is detected obviously to be increased with difficulty of governance, coal
Exploitation is more severe by water threat, and high artesian water bursting disaster problem is increasingly severe.
Grout transformation water-bearing layer is the effective ways for solving the problems, such as gushing water threat on artesian water.The coal seam that China takes at present
Bottom plate routine grout transformation technology, mainly based on down-hole drilling, that there are drilling amounts is big, drilling track is uncontrollable, effective hole section
It is shorter, grouting consolidation effect is poor, in not formed headentry and air return lane, the grouting and reinforcing that can not construct drilling, cannot
The problems such as realizing region advance reinforcement.Directional drilling slip casting controls skill using the progressive elongation technology of coal bed drilling and drilling track
Art improves coal seam Drilling ratio, the accurate drilling of deep hole is realized, to the hidden water flowing subsided column, tomography and crack in water-bearing layer region
Forward probe and grouting treatment are carried out, there is advanced Regional, increase drilling with meeting the effective hole section of water, forward probe texture
It makes, accurately calculate water exit position, improve and bore the advantages that meeting crack rate, the grout transformation work in working face stope later period is greatly shortened
Phase reduces the influence that underground grouting prepares working face, is conducive to digging and normally takes over.
The laying of branched hole and pitch-row size, grouting pressure and slurries Diffusion Law etc. in directional drilling slip casting at present
It is main for the research of directional drilling slurries Diffusion Law and its influence factor often according to the empirically determined of field engineering practice
Have:
Application number 201810576987.X disclose under a kind of excavation stress the prefabricated system of grouting test containing rock mass with cracks and
Application method considers mining stress field caused by excavation in practical stope based on hydraulic fracturing technology, will be by sillar system
It is made under the sample prefabricated stress at excavation of complete large scale rock mass and contains rock mass with cracks, then carry out grouting test.By
Hydrofracturing, at left and right sides of rock and bottom arrangement classification SERVO CONTROL loader are implemented in top end part, realize to rock mass not Tongfang
Change the maximum master that rock sample is born using the relationship between hydraulic pressure and lateral loading stress to the purpose for applying different loads and answer
Power direction, to generate crackle in rock mass internal random.
Application number 201710607066.0 discloses a kind of dynamic water flow Flooding in Borehole consolidation grouting Diffusion Law visual Simulation
Experimental provision and method comprising experimental box body, hydraulic pressure control loading system, vertical, side hydraulic loading mechanism, biliquid chemistry
Grouting system and the test macro being connect with computer.
Though the above-mentioned prior art is all grouting test board design, constrained by its external condition, in rock interior slip casting
It is not high with visualization under the conditions of the analog simulation of stratum.Though playing filling effect to crack, slurries alternative is without body of laws
It is existing, it not can determine that influence that crack geometric attribute spreads slurries and most suitably grout coordinate ratio, can not achieve directional drilling
The test simulation of the hidden conduit pipe of slip casting reaches water hazard prediction and is administered from process to source prevention, locally administers to region and control
The requirement of reason.
Therefore, it is highly desirable to develop a kind of slurries diffusion simulations pilot system of directional drilling slip casting, analyses in depth and divide
The rule for the influence factor that Zhi Kongzhong slurries are spread along rock cranny, the high quality for live directional drilling precisely provide science
Guidance.
Summary of the invention
The purpose of the present invention is to provide a kind of simulation experiment method of directional drilling grouting serous fluid diffusion, analogs point
Different cracks types, roughness, fracture opening under branch hole, the research of the slurries Diffusion Law under grouting pressure, concentration of slurry, can
It realizes the effect of visualization of slurries diffusion path and range in branch hole, spreads shadow for intuitive research directional drilling grouting serous fluid
The factor of sound and rule provide safeguard.
Its technical solution includes:
A kind of simulation experiment method of directional drilling grouting serous fluid diffusion, used simulation experiment system includes slip casting
Experimental bench, branched hole crack simulation system, control system, grouting system and real-time monitoring system；
The slip casting experimental bench includes experimental bench ontology, main aperture and branched hole, the experimental bench ontology generally one
Frame structure, the main aperture are provided with three groups, are located at the upper, middle and lower of the experimental bench ontology framework, institute
The main aperture stated is connected with the grouting system, and conveys slurries to it by the grouting system；The branched hole is set
Several are equipped with, is distributed in distance and is distributed on the main aperture, the slurries of the grouting system conveying successively pass through described
Enter the branched hole crack simulation system after main aperture, branched hole；
The branched hole crack simulation system includes branched hole crack mold, and the branched hole crack mold passes through magnetic
Power is adsorbed in the framework of the experimental bench ontology, and the framework is provided with matched plexiglas lid；
The real-time monitoring system includes sensor, and the sensor is embedded in the preformed hole of the framework；
It is connected with rotary shaft below the experimental bench ontology, experimental bench ontology can be made by the rotary shaft rotation
Realize the transformation of multi-angle；
The control system is for controlling the simulation experiment system；
When the rotary shaft in it is horizontal when, grid that the branched hole crack mold is integrally made of muti-piece block
Shape structure, when the experimental bench ontology is rotated, the branched hole crack mold on the experimental bench ontology can be presented
The branched hole crack of differing tilt angles；
The simulation experiment method successively the following steps are included:
A, it using portland cement slurries as main injecting paste material, is loaded into the grouting pump of grouting system, wait infuse
Slurry uses；
B, check whether sensor is intact, and prefabricated mould constructs branched hole crack, then plexiglas lid is fixed on
On experimental bench ontology；
C, grouting pressure is adjusted, compression relief cock is opened, the slurries in grouting pump successively enter branched hole through main aperture, branched hole
The diffusion process of crack, i.e. analog slurries under the form of different branched hole cracks obtains relevant parameter and combines professional knowledge
It can Expansion Theory analysis；
D, after slip casting, the cleaning work of slurries is carried out.
As a preferred solution of the present invention, branched hole crack of different shapes is branch's porous dehiscence of variable-geometry attribute
Gap, cross branched hole crack, the type cross branch hole crack ※ and Y shape branched hole crack.
As another preferred embodiment of the invention, above-mentioned main aperture material is steel pipe, is also set up on above-mentioned main aperture
There are pressure gauge and compression relief cock, above-mentioned pressure gauge, compression relief cock and branched hole are connected through a screw thread with above-mentioned main aperture.
Further, above-mentioned plexiglas lid is fitted tightly over one by lock screw and above-mentioned experimental bench ontology
It rises.
Further, above-mentioned rotary shaft is connect with the lower section of above-mentioned experimental bench ontology by gear.
Compared with prior art, present invention offers following advantageous effects:
Pilot system used by test method of the present invention drives the rotation of experimental bench ontology by rotary shaft, is located at experiment
Prefabricated mould on playscript with stage directions body can realize the transformation of multiple angles, wherein every kind of transformation corresponds to, a different branched hole is prefabricated to be split
Gap；
Pilot system used by test method of the present invention is, it can be achieved that slurries Diffusion Law under branched hole Different Plane
It studies (such as horizontal fissure and vertical crack)；Slurries Diffusion Law in analog branched hole under prefabricated different type crack is ground
Study carefully；Analog difference grouting pressure, branched hole are laid and the slurries Diffusion Law research of pitch-row, crack geometric attribute etc.；It can be real
The visual research of slurries propagation law in existing directional drilling；The real-time monitoring that slurries propagation law in directional drilling can be achieved is ground
Study carefully；The comparative study of slurries Diffusion Law under different affecting factors in branched hole can be achieved.
Test method of the present invention, it is easy to operate, it can clearly obtain slurry flow rate under different affecting factors, temperature, note
Starch the relationship between pressure, slip casting concentration, slip casting time etc..
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawing:
Fig. 1 is the primary structure signal of the simulation experiment system of directional drilling grouting serous fluid of the present invention diffusion
Figure；
Fig. 2 is the side view of the simulation experiment system of directional drilling grouting serous fluid of the present invention diffusion, is mainly shown
Rotary shaft and experimental bench ontology are gone out；
Fig. 3 is the structure of grouting system in the simulation experiment system of directional drilling grouting serous fluid of the present invention diffusion
Schematic diagram；
Fig. 4 is the branched hole crack figure of variable-geometry attribute of the present invention；
Fig. 5 is cross branched hole of the present invention crack figure；
Fig. 6 is ※ shape cross branch hole crack of the present invention figure；
Fig. 7 is Y shape branched hole of the present invention crack figure；
In figure, 1, slip casting experimental bench, 2, branched hole, 3, plexiglas lid, 4, lock screw, 5, main aperture, 6, branched hole
Switch, 7, rotary shaft, 8, monitoring element, 9, compression relief cock, 10, grouting pressure table, 11, branch's porous dehiscence of variable-geometry attribute
Gap, 12, cross branched hole crack, 13, the type cross branch hole ※ crack, 14, y-branch hole crack.
Specific embodiment
The invention proposes a kind of simulation experiment methods of directional drilling grouting serous fluid diffusion, of the invention excellent in order to make
Point, technical solution are clearer, clear, elaborate combined with specific embodiments below to the present invention.
In conjunction with shown in Fig. 1 to Fig. 3, pilot system selected by the present invention, a kind of mould of directional drilling grouting serous fluid diffusion
Quasi- pilot system comprising slip casting experimental bench, branched hole crack simulation system, control system, grouting system and real-time monitoring system
System, wherein control system, the structure of grouting system and real-time monitoring system and application method are used for reference the prior art and be can be realized,
If control system can be realized by sending instructions to the band of position, accurate angle control and variation of magnetic force control are realized to experimental bench
System.The test data that recordable testing stand is obtained in different conditions simultaneously provides safeguard for later data processing.
Grouting system includes grouting pump, and by the slip casting into main aperture 5 of grouting pump connecting line, real-time monitoring system such as passes through
Computer is monitored, and the parameter sensors such as pre-plugged grouting pressure, temperature, flow velocity, pass through on slip casting experimental bench ontology
Sensor transmissions, which input a signal into computer, can be completed real-time monitoring process.Herein similarly to the prior art or this field skill
Art personnel, which use for reference the prior art, can be realized place, herein no longer detailed redundant.
As a main improvement of the invention, experimental bench different branched holes can be laid and pitch-row in prefabricated directional drilling
Under rock cranny, it can be achieved that slurries Diffusion Law (such as horizontal fissure and vertical in directional drilling under different angle branched hole
Crack), different cracks type, roughness, fracture opening under analog branched hole, the slurries under grouting pressure, concentration of slurry expand
Dissipate the research of rule, it can be achieved that in branch hole slurries diffusion path and range effect of visualization, for intuitive research Directional Drilling
Hole grouting serous fluid extends influence factor and rule provides safeguard.Its technical solution mainly used are as follows:
Slip casting experimental bench 1 include experimental bench ontology, main aperture 5 and branched hole 2, an experimental bench ontology generally frame structure,
Main aperture material be steel pipe, can be fixed on testing stand, main aperture 5 is provided with three groups, be located at experimental bench ontology framework top,
Middle part and lower part, the purpose being arranged in this way are: usual three groups of experiments of mechanical test common demands in contrast, thus can be with
The comparison of a parameter is completed in primary experiment, can be saved the time, be improved efficiency.Main aperture 5 is connected with grouting system, and passes through slip casting
System conveys slurries to it；Branched hole is provided with several, is distributed in distance and is distributed on main aperture, the slurry of grouting system conveying
Liquid successively enters branched hole crack simulation system after main aperture, branched hole；
Branched hole crack simulation system includes branched hole crack mold, and branched hole crack mold is being tested by magnetic-adsorption
In the framework of playscript with stage directions body, framework is provided with matched plexiglas lid 3, plexiglas lid 3 and experimental bench ontology
Head is connected by lock screw 4, and the two simultaneously fits closely together, prevents slurries diffusion outflow.Plexiglas lid can be with
It realizes visual inspection, can pass through plexiglas lid and observe crack situation.Real-time monitoring system includes sensor, sensor
It is embedded in the preformed hole of framework, sensor is connect with computer, and the real-time monitoring of fracture may be implemented.
It is connected with rotary shaft 7 below experimental bench ontology, experimental bench ontology can be made to realize multi-angle by the rotation of rotary shaft 7
Transformation；Control system is for controlling simulation experiment system；Branched hole 2, grouting pressure table 10 and compression relief cock 9 and master
Hole screw thread (screw thread) connection, on experimental bench ontology, sensor is embedded in test table top preformed hole prefabricated mould magnetic-adsorption,
It is sealed by solid gum levelling.Rotary shaft under test table top can realize testing stand angular adjustment, and shaft and table top are tooth
Wheel connection, accurately controls angular adjustment.Monitoring element 8 is located on experimental bench ontology, can be dense to temperature, slurry flow rate, slurries
Degree is monitored.
When rotary shaft is in level, the grid-shaped structure that branched hole crack mold is integrally made of muti-piece block works as reality
When testing playscript with stage directions body and being rotated, branch's porous dehiscence of different shapes can be presented in the branched hole crack mold on experimental bench ontology
Gap, is specifically shown in shown in Fig. 4 to Fig. 7, there is branched hole crack 11, the cross branched hole crack 12, ※ of variable-geometry attribute respectively
Type cross branch hole crack 13 and Y shape branched hole crack 14.
By solenoid valve control branched hole switch 6, in the case where reaching predetermined pressure, two main aperture valves are opened simultaneously, analog
The image comparison of slurries Diffusion Law under different affecting factors is realized in slip casting while main aperture under bilateral difference factor, and observation is not
With the slurries spread condition under the form of branched hole crack.Slurries diffusion path during slip casting by real-time monitoring system video recording
System complete monitoring, after the test by video recording research different moments slurries diffusion characteristic, by laying relevant monitoring member
Part can be obtained clearly between slurry flow rate under different affecting factors, temperature, grouting pressure, slip casting concentration, slip casting time etc.
Relationship.
Test method of the invention is illustrated below with reference to above-mentioned pilot system:
A kind of simulation experiment method of directional drilling grouting serous fluid diffusion, specifically includes the following steps:
Step 1 is loaded into grouting pump using portland cement slurries as injecting paste material, to be used to slip casting,
Grouting pressure range is 0-8MPa；
Step 2 checks whether sensor is intact according to test requirements document, and prefabricated mould constructs branched hole crack, then will
Plexiglas cover board is fastened with lock screw；
Grouting pressure is adjusted to appropriate location, opens compression relief cock, slurries is made to inject branch's porous dehiscence through main aperture by step 3
Gap simulates diffusion process of the slurries under the form of different branched hole cracks, carries out the parameters such as grout mixing and grouting pressure
Real-time monitoring, after slip casting, carry out the cleaning work of slurries.
Grouting serous fluid diffusion mechanism research in directional drilling room, analog directional drilling branched hole slurry may be implemented in the present invention
The research of liquid Diffusion Law spreads comparative analysis, it can be achieved that filling two kinds of slurries simultaneously, can construct branch's porous dehiscence by prefabricated mould
Slurries Diffusion Law is presented in gap, large area visualization.
It uses for reference the prior art and can be realized in the part that the present invention does not address.
It should be understood 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 (5)
1. a kind of simulation experiment method of directional drilling grouting serous fluid diffusion, which is characterized in that its used simulation test system
System includes slip casting experimental bench, branched hole crack simulation system, control system, grouting system and real-time monitoring system；
The slip casting experimental bench includes experimental bench ontology, main aperture and branched hole, a experimental bench ontology generally framework
Structure, the main aperture are provided with three groups, are located at the upper, middle and lower of the experimental bench ontology framework, described
Main aperture is connected with the grouting system, and conveys slurries to it by the grouting system；The branched hole is provided with
Several, are distributed in distance and are distributed on the main aperture, the slurries of the grouting system conveying successively through the main aperture,
Enter the branched hole crack simulation system after branched hole；
The branched hole crack simulation system includes branched hole crack mold, and the branched hole crack mold is inhaled by magnetic force
It is attached in the framework of the experimental bench ontology, the framework is provided with matched plexiglas lid；
The real-time monitoring system includes sensor, and the sensor is embedded in the preformed hole of the framework；
It is connected with rotary shaft below the experimental bench ontology, experimental bench ontology can be made to realize by the rotary shaft rotation
The transformation of multi-angle；
The control system is for controlling the simulation experiment system；
When the rotary shaft in it is horizontal when, grid-shaped knot that the branched hole crack mold is integrally made of muti-piece block
Structure, when the experimental bench ontology is rotated, difference can be presented in the branched hole crack mold on the experimental bench ontology
The branched hole crack of tilt angle；
The simulation experiment method successively the following steps are included:
A, it using portland cement slurries as main injecting paste material, is loaded into the grouting pump of grouting system, to make to slip casting
With；
B, check whether sensor is intact, and prefabricated mould constructs branched hole crack, then plexiglas lid is fixed on experiment
On playscript with stage directions body；
C, grouting pressure is adjusted, compression relief cock is opened, the slurries in grouting pump successively enter branch's porous dehiscence through main aperture, branched hole
The diffusion process of gap, i.e. analog slurries under the form of different branched hole cracks obtains relevant parameter and is in conjunction with professional knowledge
Deployable theory analysis；
D, after slip casting, the cleaning work of slurries is carried out.
2. a kind of simulation experiment method of directional drilling grouting serous fluid diffusion according to claim 1, it is characterised in that: no
The branched hole crack of similar shape is branched hole crack, cross branched hole crack, the ※ type cross branch hole of variable-geometry attribute
Crack and Y shape branched hole crack.
3. a kind of simulation experiment method of directional drilling grouting serous fluid diffusion according to claim 2, it is characterised in that: institute
The main aperture material stated is steel pipe, pressure gauge and compression relief cock is additionally provided on the main aperture, the pressure gauge, pressure release are opened
It closes and branched hole is connected through a screw thread with the main aperture.
4. a kind of simulation experiment method of directional drilling grouting serous fluid diffusion according to claim 3, it is characterised in that: institute
The plexiglas lid stated is fitted closely together by lock screw and the experimental bench ontology.
5. a kind of simulation experiment method of directional drilling grouting serous fluid diffusion according to claim 4, it is characterised in that: institute
The rotary shaft stated is connect with the lower section of the experimental bench ontology by gear.
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| CN201910331147.1A CN110108838B (en) | 2019-04-24 | 2019-04-24 | Simulation test method for directional drilling grouting slurry diffusion |
| PCT/CN2019/091802 WO2020215469A1 (en) | 2019-04-24 | 2019-06-19 | Simulation test method for directional drilling grouting slurry diffusion |
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| CN201910331147.1A CN110108838B (en) | 2019-04-24 | 2019-04-24 | Simulation test method for directional drilling grouting slurry diffusion |
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Cited By (3)
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| CN114397233A (en) * | 2021-12-30 | 2022-04-26 | 山东科技大学 | Three-dimensional simulation test method for directional drilling grouting |
| CN115163041A (en) * | 2022-06-08 | 2022-10-11 | 中国地质大学（武汉） | Coal seam floor horizontal branch well grouting water plugging visual experiment simulation method |
| CN117252033A (en) * | 2023-11-13 | 2023-12-19 | 山东科技大学 | Coarse crack slurry diffusion process description method considering heat flow solid coupling |
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| CN112798474A (en) * | 2020-12-18 | 2021-05-14 | 西安科技大学 | Method and device for monitoring rock mass grouting diffusion range |
| CN112798475A (en) * | 2020-12-22 | 2021-05-14 | 西安科技大学 | Method, system and device for monitoring diffusion area of grouting slurry in rock-soil mass |
| CN112985757B (en) * | 2021-02-02 | 2022-07-29 | 山东大学 | Coastal karst area water-moving grouting test device and test method |
| CN114414438B (en) * | 2022-01-24 | 2024-01-26 | 中国矿业大学 | Identification method for detecting grouting diffusion range based on proton magnetometer |
| CN115343416B (en) * | 2022-06-21 | 2023-07-07 | 中国矿业大学(北京) | Device and method for simulating grouting of water after coal seam mining |
| CN115266476A (en) * | 2022-07-13 | 2022-11-01 | 河南理工大学 | Coal rock fracture visual grouting device and test method |
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| Publication number | Publication date |
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| WO2020215469A1 (en) | 2020-10-29 |
| CN110108838B (en) | 2020-09-29 |
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