CN106869967A - The routed sand remote jet disturbance grouting method of driving face gushing water - Google Patents
The routed sand remote jet disturbance grouting method of driving face gushing water Download PDFInfo
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- CN106869967A CN106869967A CN201710217486.8A CN201710217486A CN106869967A CN 106869967 A CN106869967 A CN 106869967A CN 201710217486 A CN201710217486 A CN 201710217486A CN 106869967 A CN106869967 A CN 106869967A
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- target spot
- husky
- sand
- induration
- tunnel
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- 239000004576 sand Substances 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 34
- 238000010276 construction Methods 0.000 claims abstract description 18
- 238000007569 slipcasting Methods 0.000 claims abstract description 11
- 230000009172 bursting Effects 0.000 claims abstract description 8
- 230000001052 transient effect Effects 0.000 claims abstract description 8
- 239000004568 cement Substances 0.000 claims abstract description 6
- 238000002474 experimental method Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims abstract description 5
- 238000011065 in-situ storage Methods 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 238000003325 tomography Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011083 cement mortar Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000012372 quality testing Methods 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- -1 cut Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000013097 stability assessment Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
A kind of routed sand remote jet disturbance grouting method of driving face gushing water, is included in the routed sand of gushing water and transient equilibrium occurs, when husky body no longer flows, drill site is set in trouble free service surface construction；Selection target spot, the target position should be the roadway position of neighbouring sand passage area of bursting, and is constructed from drill site to target spot and pierced；Target spot carries out high-pressure jet disturbance slip casting using drilling tool, the husky cylindric induration of cement is formed in target spot, occlusion induration is constituted by the husky cylindric induration of multiple cement, reliably blocked with forming the tunnel at target spot, the methods such as experiment, hydraulic pressure applied voltage test in situ of being cored using drilling carry out quality testing to the occlusion induration at target spot, ensure the safety of desilting to tunnel target spot；Thus, the present invention can be formed under the conditions of tunnel alluvial sand has certain limit, the occluding body of intensity, and Engineering Reliability is high, for emergency work and resumes production, and prevents secondary disaster to have larger practical value.
Description
Technical field
The present invention relates to the technology neck that Jing Gongkuangshan carries out rescue and relief work, production restoration after driving face gushing water bursts sand
Domain, more particularly to a kind of routed sand remote jet disturbance grouting method of driving face gushing water.
Background technology
The Datong seam group of northern China is normal in Special zones such as structure development region, wash zone, wind oxidized zones when exploiting
Often there is the routed husky disaster of gushing water.The husky source of buried stratum gushing water sand inrush disaster is generally weak cementing or not cementing rock stratum, burst into
Passage is generally the primary geological structure of tomography class or inbreak deformation class secondary interstice band.Substantial amounts of alluvial after the generation of gushing water sand inrush disaster
Thing filling underground work space.Main component is the drift of the materials such as mud, sand, it is impossible to use conventional pumps class mechanical chipping, only
Manual work construction can be carried out.In the past in similar hazard management, the general drainability using by mine, risk cleaning to neighbour
Nearly sand passage area of bursting, builds temporary water dash wall, then the method that the sand passage that burst is administered carries out rescue and relief work and resumes production,
This construction method has following dangerous and difficult：
1st, disaster stratigraphic boundary is unclear, and husky source reserves cannot be expected.Such as it is not seeking to carry out bursting into passage plugging in advance, can makes
Into repeatedly " clear up-burst into-clear up again-burst again into ... " circulation construction, workload is big, high cost, and working face top also easily occurs
Plate empties other disasters that unstability causes；
2nd, the balance for usually being caused after husky stopping of bursting in advance is only temporary transient balance." damming " effect formed after balance
Should be under the water sand alimentation in sand source of bursting, water sand pressure in disaster source is constantly raised, and is burst with bigger repetition husky dangerous, right
Cleaning work personnel cause serious security threat；
3rd, under conditions of front is without reliable occluding body, drift stage Stability Assessment cannot be carried out.And manual cleaning
Interference can cause drift balance sudden unstability.The conceptual design of rescue and production restoration and it is implemented with very big
It is uncertain and adventurous.
4th, laneway plugging body construction is such as carried out using common slurry injection technique, in the alluvial that main component is the materials such as mud, sand
The veiny grouting soil of " fracture grouting " can only be produced in thing, it is impossible to form reliable occluding body.
Therefore, during disaster occurs and after disaster generation, how quickly effectively to lead to neighbouring disaster in safety zone
The tunnel in road carries out reliable closure body construction at a distance, and powerful guarantee, maximum limit are provided to follow-up rescue and relief work and production restoration
The reduction working face personnel of degree, the loss of equipment, are always a larger problem.
Therefore, designer of the invention is in view of drawbacks described above, it is comprehensive to be engaged in for many years for a long time by concentrating on studies and designing
The experience and achievement of related industry, research and design go out a kind of routed sand remote jet disturbance grouting method of driving face gushing water, with
Overcome drawbacks described above.
The content of the invention
It is an object of the invention to provide a kind of routed sand remote jet disturbance grouting method of driving face gushing water, can be in well
Work coal mine evacuation working face gushing water is burst after sand, carries out the underground remote jet disturbance slip casting that purpose tunnel section occluding body is reliably built
Technology, for quick effectively development speedily carries out rescue work improvement and work of resuming production provides safety guarantee.
To solve the above problems, the invention discloses a kind of routed sand remote jet disturbance slip casting side of driving face gushing water
Method, it is characterised in that comprise the following steps：
Step 1, gushing water burst sand there is transient equilibrium, when husky body no longer flows, trouble free service surface construction set drill site；
Step 2, selection target spot, the target position should be the roadway position of neighbouring sand passage area of bursting, from drill site to target spot
Construction is pierced；
Step 3, target spot carry out high-pressure jet disturbance slip casting using drilling tool, and forming diameter in a direction of target spot is about
Cement-husky cylindric the induration of 0.6m, unconfined compressive strength not less than 5MPa；
Step 4, by repeatedly step 3, carry out multiple Directional Drillings away from no more than 0.6m in the heart by bore hole axis in target spot
Hole is constructed, so as to constitute occlusion induration by multiple cement-husky cylindric induration, is reliably sealed with forming the tunnel at target spot
It is stifled；
The methods such as step 5, experiment of being cored using drilling, hydraulic pressure applied voltage test in situ are carried out to the occlusion induration at target spot
Quality testing, ensures the safety of desilting to tunnel target spot.
Wherein：In step 1, after digging laneway work surface construction discloses tomography passage, the weak cementing routed husky source ground in top
The water sand mixture of layer is burst into digging laneway working face and neighbouring tunnel by tomography passage from routed husky point, forms substantial amounts of water husky
Husky body no longer flows behind alluvial region, forms temporary transient balance.
Wherein：The technological parameter of the high-pressure jet disturbance slip casting is from as follows：Grouting pressure is 20Mpa, injecting paste material
For weight compares 1:1 single liquid cement mortar, cement uses PO.42.5R Portland cements.
Wherein：To ensure that purpose section slurries will not be lost in, pressure control in hole is carried out using outburst prevention device and protects slurry.
By said structure, driving face gushing water of the invention bursts sand remote jet disturbance grouting method with such as
Lower effect：
1st, can be formed with certain limit, the occluding body of intensity under the conditions of tunnel alluvial sand, Engineering Reliability is high, for
Emergency work and resume production, prevent secondary disaster that there is larger practical value；
2nd, occluding body is built scope and can obtain certain control, can effectively protect the husky prominent passage adjacent domain work lane of water
Road personnel and equipment, reduce substantial amounts of later stage cleaning work amount；
3rd, quantities is small, short time limit, meets rescue and relief work requirement and can save substantial amounts of engineering cost.
Detailed content of the invention can be obtained by explanation described later and institute's accompanying drawing.
Brief description of the drawings
Fig. 1 shows that the routed sand remote jet of driving face gushing water of the invention disturbs the reference planes figure of grouting method.
Fig. 2 shows that the routed sand remote jet of driving face gushing water of the invention disturbs the sectional view of grouting method.
Fig. 3 shows that nearly horizontal jet grouting of the invention bores the structural representation of spray integrated construction drilling tool.
Specific embodiment
Referring to Fig. 1 and 2, it is shown that the routed sand remote jet disturbance grouting method of driving face gushing water of the invention.
The routed sand remote jet disturbance grouting method of the driving face gushing water comprises the following steps：
Step 1, gushing water burst sand there is transient equilibrium, when husky body no longer flows (both when digging laneway working face 1 construction take off
After dew tomography passage 2, the water sand mixture on the weak cementing routed Sha Yuan stratum 3 in top is burst into driving by tomography passage from routed husky point 4
Tunnel working face and neighbouring tunnel, husky body no longer flows after forming the husky alluvial region 5 of substantial amounts of water, forms temporary transient balance),
Trouble free service surface construction sets drill site 6；
Step 2, selection target spot 7, the target position should be the roadway position of neighbouring sand passage area of bursting, from drill site 6 to target
The construction of point 7 is pierced；
Step 3, target spot 7 carry out high-pressure jet disturbance slip casting using drilling tool, and forming diameter in a direction of target spot 7 is about
Cement-husky cylindric the induration 8 of 0.6m, unconfined compressive strength not less than 5MPa, it is preferred that the drilling tool is nearly level
Spray integrated construction drilling tool is bored in churning, and preferably the technological parameter of high-pressure jet disturbance slip casting is from as follows：Grouting pressure is 20MPa.
Injecting paste material compares 1 for weight:1 single liquid cement mortar, cement uses the nozzle of PO.42.5R Portland cements, drilling tool to select
One YG8 alloy exponential convergence type nozzle of diameter 2.5mm, when the high-pressure jet for retreating disturbs slip casting, drilling tool astern speed
It is 0.2m/min, rotary speed is 20r/min.Each drilling carries out the rotating jet disturbance slip casting when retreating, and is repeated 2 times.
Wherein, will not be lost in ensure purpose section slurries, pressure control in hole need to be carried out using outburst prevention device and protect slurry；
Step 4, by repeatedly step 3, carry out multiple Directional Drillings away from no more than 0.6m in the heart by bore hole axis in target spot 7
Hole is constructed, so as to constitute occlusion induration by multiple cement-husky cylindric induration 8, is reliably sealed with the tunnel for forming target spot 7
It is stifled；
The methods such as step 5, experiment of being cored using drilling, hydraulic pressure applied voltage test in situ are entered to the occlusion induration at target spot 7
Row quality testing, confirms that monomer cement-husky cylindric induration diameter is not less than 0.6m, and unconfined compressive strength is not less than
5MPa, induration internal bore original position hydraulic pressure applied voltage test is engaged at target spot 7 can be pressure-resistant not less than 0.5MPa, that is, ensure desilting extremely
The safety of tunnel target spot.
Thus, by above-mentioned steps, can be formed with certain limit, the occluding body of intensity under the conditions of tunnel alluvial sand,
Engineering Reliability is high.For emergency work and resume production, prevent secondary disaster that there is larger practical value.
Wherein, referring to Fig. 3, way-type drilling unit of the invention is made up of 8 kinds of parts.Wherein with hard alloy three wings into
Using threaded connection two-bit triplet formula valve core of the spool valve 12, guiding valve valve body 14 uses spline connection guiding valve to drill 11 in direction of rotation
Valve element 12, axially carries out Stroke Control using the shaft shoulder.What is fixed outside at drill bit 11 and the composition surface of valve body 14 is protective case 13, is prevented
Mud nitre enters spool stroke region.Y shape polyurethane high-pressure seal ring 15 is fixed on the periphery of valve core of the spool valve 12, positioned at valve core of the spool valve
Between 12 circumferential side openings.The nozzle boss 16 of churning hard alloy shower nozzle is with using being threaded on guiding valve valve body 14, and churning is hard
Matter alloy shower nozzle 17 is using on tight fit press-in nozzle boss 16.Adapter 18 is threadedly coupled guiding valve valve body 14, adapter with use
Stacks after 18.
In drilling and forming hole, because by drilling resistance, way-type drilling unit is axially compressed into Fig. 1 states, and at this moment churning is hard
The base closed of matter alloy shower nozzle 17, drill-in fluid by drilling rod centrally through combination bore behind the side on valve element 12, into valve body 14
Connection chamber, then the centre bore of drill bit 11 is entered by combination bore before the side on valve element 12, reach row's nitre, cooling, the lubrication of drilling
Purpose.When churning is needed in lifting drilling tool after creeping into stopping, because drilling resistance is released, by high pressure damping effect, combination
Drilling tool is axially expanded to the right, and at this moment by the poppet body 14 of adapter 18, sealing ring 15 blocks the original flushing liquor of closing to drilling rod
Lower aquaporin, flushing liquor under the effect of the pressure, open by churning hard alloy shower nozzle 17, and churning slurries are by the high pressure of churning shower nozzle 17
Spray, realize the purpose of churning pile.
Preferably, the outburst prevention device is made up of protrusion-dispelling overcoat and elastic packing component, fixed gear in its protrusion-dispelling overcoat
Ring, is successively from the bottom to top wear-resistant seal support ring, elastic caoutchouc seal assembly and wear-resisting in the elastic packing component on baffle ring
Seal joint, protrusion-dispelling outer set upper side threaded connection spiral propeller, the spiral propeller lower end bottom surface that can be controlled up and down and bullet
Property seal assembly upper surface contact.
There are the shunt valve of excretion, the shunt valve outer end connecting valve below elastic packing component in protrusion-dispelling overcoat outside.
Propeller handle is fixed in spiral propeller upper end.
Thus, in instantaneous exposure containing high pressure, big flow, high concentration water, gas evil region, drilling rod non-return valve can be prevented
Water, gas are protruded by drilling rod center, it is ensured that the safety of dismounting drilling tool.Block outburst prevention device and bore by screwing propeller handle
The gap of rod member is simultaneously held drilling rod tightly and closes valve, can be rapidly reached closure drilling, be prevented from protruding the purpose of accident.
The high-pressure jet disturbance slurry injection technique that the present invention is used is to enter scall, by gel paste materials (
As be cement mortar) be forced into more than 20MPa, by the 2-3mm diameter high strength cemented carbide nozzles of exponential convergence shape with height
Fast pattern is disturbed to discrete material, cut, mix, consolidation, to form the induration with certain limit and intensity.
This technology remote construction occluding body after technology of the invention can be efficiently applied to the routed sand of mining face under mine gushing water, so as to solve
Certainly underground special equipment is supporting, directional drilling, parameters of construction technology experiment and selection, nearly horizontal jet grouting high-pressure vibro-grouting, level
Drilling pressure control protects the technical barriers such as slurry.
It is readily apparent that the description of the above and record are only to illustrate rather than in order to limit in disclosure of the invention
Hold, using or use.Although embodiment was described and be described in the drawings in embodiment, the present invention is not limited
By accompanying drawing example and described in embodiment as it is now recognized that optimal mode implementing the particular case of the teachings of the present invention
Son, the scope of the present invention will include falling into any embodiment of description and appended claims above.
Claims (4)
1. a kind of routed sand remote jet of driving face gushing water disturbs grouting method, it is characterised in that comprise the following steps：
Step 1, gushing water burst sand there is transient equilibrium, when husky body no longer flows, trouble free service surface construction set drill site；
Step 2, selection target spot, the target position should be the roadway position of neighbouring sand passage area of bursting, and be constructed from drill site to target spot
Pierce；
Step 3, target spot using drilling tool carry out high-pressure jet disturbance slip casting, target spot a direction formed diameter be about 0.6m,
Cement-husky cylindric induration of the unconfined compressive strength not less than 5MPa；
Step 4, by repeatedly step 3, carry out multiple directional drillings away from no more than 0.6m in the heart by bore hole axis in target spot and apply
Work, so as to constitute occlusion induration by multiple cement-husky cylindric induration, is reliably blocked with forming the tunnel at target spot；
The methods such as step 5, experiment of being cored using drilling, hydraulic pressure applied voltage test in situ carry out quality to the occlusion induration at target spot
Detection, ensures the safety of desilting to tunnel target spot.
2. grouting method as claimed in claim 1, it is characterised in that：In step 1, when digging laneway work surface construction is disclosed
After tomography passage, the water sand mixture on the weak cementing routed Sha Yuan stratum in top is burst into digging laneway work by tomography passage from routed husky point
Make face and neighbouring tunnel, husky body no longer flows after forming the husky alluvial region of substantial amounts of water, forms temporary transient balance.
3. grouting method as claimed in claim 1, it is characterised in that：The technological parameter of the high-pressure jet disturbance slip casting is selected
It is as follows：Grouting pressure is 20Mpa, and injecting paste material compares 1 for weight:1 single liquid cement mortar, cement uses the common silicic acid of PO.42.5R
Salt cement.
4. grouting method as claimed in claim 1, it is characterised in that：To ensure that purpose section slurries will not be lost in, using protrusion-dispelling
Device carries out pressure control in hole and protects slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710217486.8A CN106869967B (en) | 2017-04-05 | 2017-04-05 | The routed husky remote jet of driving face gushing water disturbs grouting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710217486.8A CN106869967B (en) | 2017-04-05 | 2017-04-05 | The routed husky remote jet of driving face gushing water disturbs grouting method |
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| Publication Number | Publication Date |
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| CN106869967A true CN106869967A (en) | 2017-06-20 |
| CN106869967B CN106869967B (en) | 2018-10-19 |
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Cited By (3)
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| CN111550288A (en) * | 2020-05-22 | 2020-08-18 | 陕西煤业化工技术研究院有限责任公司 | Method for monitoring water burst and sand burst disasters |
| CN116291201A (en) * | 2023-02-08 | 2023-06-23 | 中交第二公路勘察设计研究院有限公司 | Underground engineering emergency rescue method based on horizontal directional drill |
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| CN116291201A (en) * | 2023-02-08 | 2023-06-23 | 中交第二公路勘察设计研究院有限公司 | Underground engineering emergency rescue method based on horizontal directional drill |
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| Publication number | Publication date |
|---|---|
| CN106869967B (en) | 2018-10-19 |
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