CN115263391A - Geotechnical engineering supporting method and supporting equipment - Google Patents
Geotechnical engineering supporting method and supporting equipment Download PDFInfo
- Publication number
- CN115263391A CN115263391A CN202211169274.4A CN202211169274A CN115263391A CN 115263391 A CN115263391 A CN 115263391A CN 202211169274 A CN202211169274 A CN 202211169274A CN 115263391 A CN115263391 A CN 115263391A
- Authority
- CN
- China
- Prior art keywords
- grouting
- wall
- fault
- knob switch
- geotechnical engineering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000011440 grout Substances 0.000 claims abstract description 20
- 238000010276 construction Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 17
- 238000005553 drilling Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000007569 slipcasting Methods 0.000 claims description 2
- 239000004568 cement Substances 0.000 abstract description 27
- 239000002002 slurry Substances 0.000 abstract description 22
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 7
- 230000001960 triggered effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/028—Devices or accesories for injecting a grouting liquid in a bore-hole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a geotechnical engineering supporting method and supporting equipment, wherein the geotechnical engineering supporting method comprises the following steps of S1, construction preparation work, S2, determining grouting parameters through a grouting water stop test; s4, grouting, and injecting the grout into a grouting hole through pressure equipment; according to the anchor rod, the fixing sleeve, the screw rod, the adjusting sleeve and the spring are arranged, the anchor rod and the drill hole are filled with the grout, the cement grout is fixedly connected with the inner wall of the outer wall of the anchor rod, and the fixing sleeve, the screw rod, the adjusting sleeve and the spring are also fixedly connected with the cement grout, so that the situation that the existing anchor rod is easy to pull out after the cement grout is fixed can be avoided; by arranging the plugging equipment, most space of a fault crack can be plugged through the air bag, so that the opening of the fault is obviously reduced, the waste of slurry is avoided, and a cavity with leakage injection is avoided; and the cement grout between the outer wall of the anchor rod and the inner wall of the drilled hole is shaped into a whole, so that the shearing resistance cannot be influenced.
Description
Technical Field
The invention relates to the field of geotechnical engineering support, in particular to a geotechnical engineering support method and support equipment.
Background
In the geotechnical engineering construction process, adverse geological conditions such as faults, karsts and the like are frequent, particularly, a water-rich soft fault fracture zone is easy to cause geological disasters such as water inrush and mud inrush in the tunnel construction period, so that the construction safety of geotechnical engineering is seriously influenced, and the main engineering technical method for treating the water inrush and mud inrush disaster in the geotechnical construction period is grouting at present;
grouting is carried out by driving modes such as hydraulic pressure, air pressure or electrochemistry, grouting materials are injected into weak rock-soil media in the grouting process by arranging grouting holes, presetting injection devices and the like, wherein the grouting materials mainly comprise cement grout and chemical grout, and the grout can fill pores in the rock-soil in the modes of filling, permeation, splitting, compaction and the like according to different types of injected media, so that the physical properties such as strength, permeability and the like of the injected media are improved;
however, due to complex geological conditions, a fracture layer gap exists inside the fracture, and if the calibration position is just located at a position corresponding to the fracture layer gap, mortar can be lost into the fracture layer in the grouting process;
when grouting is carried out on a fracture of a fractured zone, the position where cement particles begin to deposit in the fracture is related to grouting pressure, slurry consistency and fracture opening, the larger the grouting pressure is, the thinner the cement slurry is, the larger the fracture opening is, the farther the position where the cement particles begin to deposit is from the grouting starting point, the cement particles gradually deposit and separate out from the cement slurry, a ridge which gradually thickens along with the grouting time is formed in the fracture, the fracture opening is reduced, slurry absorption and filtration of the fracture are reduced under the condition that other conditions are not changed, and a new ridge is formed at the position closer to the starting point until the fracture is filled;
however, when the fault fracture is completely filled, a large amount of mortar needs to be consumed, and if the grouting space is too large, the filling of the quick-setting expansion slurry in the hole is uneven, a leaking cavity occurs, and the reinforcing strength is affected.
Disclosure of Invention
The invention aims to: provides a geotechnical engineering support method, which comprises the following steps,
s1, construction preparation work;
s2, determining grouting parameters through a grouting and water stopping test;
s3, drilling, wherein the plugging device for plugging fault cracks is brought in through the anchor rod in the drilling process, the plugging device automatically extends into the fault cracks after reaching the fault, and the plugging device entering the fault cracks is separated from the anchor rod and expands to plug the fault cracks;
s4, grouting, and injecting the grout into a grouting hole through pressure equipment;
and S5, sealing holes, and sealing holes after grouting is completed.
As a further improvement of the above scheme:
preferably, the grouting parameters in step S2 include grouting material, hole position arrangement, grouting range and grouting pressure.
Preferably, geotechnical engineering struts equipment, based on above-mentioned geotechnical engineering struts method, including platform truck, slip casting machine and stock, be fixed with the shutoff equipment that is used for shutoff fault crack on the stock, the shutoff equipment is including being used for fixing the fixed cover on the stock, be fixed with a plurality of screw rods on the fixed cover lateral wall, there is the adjusting collar through threaded connection on the screw rod, be fixed with spring and gag lever post on the adjusting collar, the spring other end supports on arc piece inner wall, be fixed with the stop collar on the arc piece inner wall, the gag lever post stretches into in the stop collar, the arc piece encircles fixed cover formation ring form circle, be equipped with high-pressure gas chamber and gasbag chamber in the arc piece, the high-pressure gas intracavity is equipped with high-pressure gas, the high-pressure gas chamber is connected with the blast pipe that stretches into the gasbag chamber, first knob switch, the second knob switch of first stay cord control, the intercommunication has on the blast pipe in proper order, and the gasbag air inlet intercommunication in second knob switch and the gasbag intracavity, the gasbag chamber lateral part is offered and is used for the gasbag pops out the export, the protection thin slice covers in the bullet exit.
Preferably, the exhaust pipe tip is fixed with first fan-shaped shrouding, the exhaust pipe tip rotates the first knob switch of sealing connection, first knob switch internal fixation has the fan-shaped shrouding of second, first knob switch is connected with communicating pipe through the stay cord, the other end of communicating pipe rotates sealing connection and is connected with second knob switch, second knob switch internal fixation has the fan-shaped shrouding of third, second knob switch rotates sealing connection with gasbag air inlet intercommunication, gasbag air inlet intercommunication internal fixation has the fan-shaped shrouding of fourth.
Preferably, the first knob switch and the second knob switch are respectively and fixedly connected with the first pull rope and the second pull rope, and the first pull rope and the second pull rope are respectively wound on the first knob switch and the second knob switch.
Preferably, the high-pressure gas cavity is provided with a gas filling port, and the high-pressure gas in the high-pressure gas cavity is CO2.
Preferably, the outside of the arc-shaped block is also sleeved with a limiting ring.
Preferably, the bullet export set up with arc piece lateral wall, arc piece lateral wall has the bullet export to separate for upper wall and lower wall, upper wall, lower wall all are arc.
Preferably, the protective sheet is positioned in a recess formed by the upper wall and the lower wall.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the triggered arc-shaped block has complex geological conditions, gaps may exist between the inflated air bags and the fault, however, the air bags can block most fault cracks, when the anchor rod is grouted, grout fills the anchor rod and the drill hole, the cement grout is fixedly connected with the inner wall of the outer wall of the anchor rod, the cement grout can also fixedly connect the fixed sleeve, the screw rod, the adjusting sleeve and the spring, and the situation that the existing anchor rod is easy to draw out after the cement grout is fixed can be avoided;
when cement slurry flows to a fault, most fault cracks can be blocked by the air bags, gaps can exist between the inflated air bags and the fault, the cement slurry enters the fault through the gaps, the cement slurry amount entering the air bag gaps is small due to constant injection pressure of the cement slurry, the precipitation of the cement slurry at the air bag gaps can be accelerated, the air bag gaps can be rapidly blocked, most space of the fault cracks can be blocked through the air bags by arranging blocking equipment, the openings of the fault are remarkably reduced, the blocking can be rapidly finished at the fault inlet in the grouting process, the condition that a large amount of slurry needs to be injected is avoided, the waste of the slurry is avoided, and meanwhile, the slurry used for blocking the fault is less, and a leakage injection cavity can not occur;
moreover, the plugging device stretches into the fracture layer, the space between the hole wall of the drilled hole and the anchor rod cannot be influenced, the space between the outer wall of the anchor rod and the inner wall of the drilled hole is communicated with the whole, and when cement grout between the outer wall of the anchor rod and the inner wall of the drilled hole is shaped, the whole is formed, so that the anti-shearing capacity cannot be influenced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of the plugging device fixed on a rock bolt.
Figure 2 is a schematic view of the occluding device of the present invention in a fully activated configuration.
Fig. 3 is a schematic diagram of an exploded structure of an arc-shaped block of the present invention.
FIG. 4 is a structural diagram of the exhaust pipe, the first knob switch, the communication pipe, the second knob switch and the air inlet of the airbag connected together according to the present invention.
Fig. 5 is an exploded view of the exhaust pipe, the first knob switch, the communication pipe, the second knob switch, and the air inlet of the airbag.
The labels in the figure are: 1. an anchor rod; 2. a limiting ring; 3. an arc-shaped block; 4. a spring; 5. a limiting sleeve; 6. a limiting rod; 7. an adjusting sleeve; 8. a screw; 9. fixing a sleeve; 10. a first pull cord; 11. a second pull cord; 12. an air bag; 13. a balloon lumen; 14. an exhaust pipe; 15. an air inlet of the air bag; 16. a protective sheet; 17. a high pressure gas chamber; 18. a second limit strip; 19. a first limit bar; 20. a communicating pipe; 21. a second rotary switch; 22. a first fan-shaped sealing plate; 23. a second fan-shaped sealing plate; 24. a fourth sector sealing plate; 25. a first rotary switch.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration only, not by way of limitation, i.e., the embodiments described are intended as a selection of the best mode contemplated for carrying out the invention, not as a full mode. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
As shown in fig. 1 to 5, a geotechnical engineering supporting method includes the steps of,
s1, construction preparation work; the method comprises the steps of erecting a frame body, determining hole position arrangement, installing an anchor rod 1, drilling equipment and the like;
s2 determining grouting parameters through a grouting and water stopping test; the method comprises the following steps of grouting materials, hole position arrangement modes, grouting ranges and grouting pressures;
s3, drilling, wherein plugging equipment for plugging fault cracks is brought in through the anchor rod 1 in the drilling process, the plugging equipment automatically extends into the fault cracks after reaching the fault, and the plugging equipment entering the fault cracks is separated from the anchor rod 1 and expands to plug the fault cracks;
s4, grouting, and injecting the grout into a grouting hole through pressure equipment;
and S5, sealing holes, and sealing holes after grouting is completed.
The geotechnical engineering supporting equipment comprises a trolley, a grouting machine and an anchor rod 1, wherein plugging equipment for plugging fault cracks is fixed on the anchor rod 1, the plugging equipment comprises a fixed sleeve 9 for fixing on the anchor rod 1, and the fixing mode is not limited;
a plurality of screw rods 8 are fixed on the outer side wall of the fixed sleeve 9, adjusting sleeves 7 are connected to the screw rods 8 through threads, the extending length of each adjusting sleeve 7 is changed by rotating the adjusting sleeves 7, a spring 4 and a limiting rod 6 are fixed on each adjusting sleeve 7, the other end of each spring 4 abuts against the inner wall of each arc-shaped block 3, a limiting sleeve 5 is fixed on the inner wall of each arc-shaped block 3, each limiting rod 6 extends into each limiting sleeve 5, each arc-shaped block 3 surrounds the fixed sleeve 9 to form a circular ring shape, and a limiting ring 2 is further sleeved outside each arc-shaped block 3 which surrounds the circular ring shape; the position of the adjusting sleeve 7 on the screw rod 8 can be changed by rotating the adjusting sleeve 7, so that the extending length of the adjusting sleeve 7 is changed, the compression amount of the spring 4 can be changed, the limiting ring 2 can limit the arc-shaped block 3, and the arc-shaped block 3 cannot be in a trigger state when being pressed on a hole wall after entering a drill hole;
a high-pressure gas cavity 17 and an air bag cavity 13 are arranged in the arc-shaped block 3, high-pressure gas is arranged in the high-pressure gas cavity 17, the high-pressure gas cavity 17 is provided with an air filling port, the high-pressure gas in the high-pressure gas cavity 17 is CO2 or gas contained in other air, the high-pressure gas cavity 17 is connected with an exhaust pipe 14 extending into the air bag cavity 13, the exhaust pipe 14 is sequentially communicated with a first knob switch 25 and a second knob switch 21 which are controlled by a first pull rope 10 and a second pull rope 11, a first sector sealing plate 22 is fixed at the end of the exhaust pipe 14, the end of the exhaust pipe 14 is rotatably and hermetically connected with the first knob switch 25, a second sector sealing plate 23 is fixed in the first knob switch 25, the first knob switch 25 is connected with a pull rope communicating pipe 20 through a connection pipe, the other end of the communicating pipe 20 is rotatably and hermetically connected with a second knob switch 21, a third sector sealing plate is fixed in the second knob switch 21, the second knob switch 21 is communicated with the air bag air inlet 15 and rotatably and hermetically connected with a fourth sector sealing plate 24; when the arc-shaped block 3 moves to a fault crack, under the elastic force of the spring 4, the arc-shaped block 3 is bounced into the fault crack, and in the process that the arc-shaped block 3 enters the fault crack, because the first pull rope 10 and the second pull rope 11 are pulled, the first pull rope 10 and the second pull rope 11 can pull the first knob switch 25 and the second knob switch 21, and the first knob switch 25 and the second knob switch 21 rotate for a certain angle after being pulled, because the first knob switch 25 and the second knob switch 21 are fixed with the first limit strip 19, the exhaust pipe 14 and the air bag air inlet 15 are provided with the second limit strip 18, and when the first limit strip 19 contacts the second limit strip 18, the first fan-shaped sealing plate 22 and the second fan-shaped sealing plate 23 are overlapped with each other; the third sector sealing plate and the fourth sector sealing plate 24 are overlapped with each other, at the moment, the exhaust pipe 14, the air bag air inlet 15, the first knob switch 25 and the second knob switch 21 are in a communicated state, high-pressure air in a high-pressure air cavity is discharged into the air bag 12, so that the air bag 12 is rapidly inflated, in the inflating process, the air bag 12 ejects out the protection sheet 16 at the ejection opening, the protection sheet 16 can be fixed with the arc-shaped block 3 through spot welding or other fixing methods, and the air bag 12 filled with air finally completes the blocking of a fault; when the fault is large, the fracture is sent into the plurality of arc-shaped blocks 3, so that the fault fracture is blocked;
The working principle of this application does:
when drilling is needed, a plurality of plugging devices are fixed at one end, close to a drill bit, of the anchor rod 1, and the specific number and the fixed intervals of the plugging devices are estimated according to the number of faults;
firstly, assembling plugging equipment, adjusting an adjusting sleeve 7 on a fixing sleeve 9, changing the extension length of the adjusting sleeve 7 by rotating the adjusting sleeve 7, firstly adjusting the extension length of the adjusting sleeve 7 to the shortest state, meanwhile, facing a limiting sleeve 5 of an arc-shaped block 3 to a limiting rod 6, sleeving a spring 4 of the adjusting sleeve 7 on the limiting sleeve 5, binding pull ropes of adjacent arc-shaped blocks 3 together, simultaneously splicing the arc-shaped blocks 3 into a circular ring shape, placing a limiting ring 2 outside the arc-shaped blocks 3, adapting the size of the limiting ring 2 to the size of a drilled hole, extending the extension length of the adjusting sleeve 7, compressing the spring 4, and extending the limiting rod 6 into the limiting sleeve 5 in the extension process;
then, fixing the assembled plugging equipment at one end of the anchor rod 1 close to the drill bit at intervals;
in the drilling process, the forms of the faults surrounding the anchor rod 1 are various, and the complete faults surrounding the anchor rod 1 and the incomplete faults only on one or more sides of the anchor rod 1 are also provided;
when the plugging device enters a drill hole, the limiting ring 2 is pushed out by the hole wall, the arc-shaped block 3 continues to be limited by the hole wall, the outer wall of the arc-shaped block 3 is provided with an upper wall and a lower wall which are in a circular arc shape, the fixing sleeve 9 is fixed with the anchor rod 1, the screw rod 8 fixes the adjusting sleeve 7 through threads, the adjusting sleeve 7 limits the arc-shaped block 3 through the limiting rod 6 and the limiting sleeve 5, wherein the limiting rod 6 is rectangular, and the limiting hole of the limiting sleeve 5 is matched with the limiting rod 6, so that the limiting block is driven to rotate and move together in the rotation process of the anchor rod 1;
when the arc-shaped block 3 encounters a complete fault, all the arc-shaped blocks 3 can be popped into the complete fault by the spring 4 due to no hole wall constraint, after the arc-shaped blocks 3 are popped, the spring 4 is separated from the arc-shaped blocks 3, the limiting rod 6 is separated from the limiting sleeve 5, the first pull rope 10 and the second pull rope 11 of the arc-shaped blocks 3 are pulled in the popping process, the first pull rope 10 and the second pull rope 11 drive the first knob switch 25 and the second knob switch 21 to rotate, and finally the exhaust pipe 14, the first knob switch 25, the communicating pipe 20, the second knob switch 21 and the air bag air inlet 15 are communicated;
after the connection, CO2 in the high-pressure gas cavity is quickly discharged, CO2 gas is completely filled into the gas bag 12, the gas bag 12 is arc-shaped, the complete fault can be quickly blocked due to the fact that all the arc-shaped blocks 3 are popped out, and all the gas bags 12 are filled with gas, and the gas bags 12 can be self-adaptive to fault structures for filling;
when the arc-shaped blocks 3 meet the incomplete fault, one or more arc-shaped blocks 3 in rotation are ejected into the incomplete fault crack, the arc-shaped blocks 3 which are ejected completely are triggered due to the fact that the first pull rope 10 and the second pull rope 11 are triggered, the arc-shaped blocks 3 which are ejected into the incomplete fault crack are triggered, the air bag 12 is ejected, the inflated air bag 12 blocks the incomplete fault crack, and the rest other arc-shaped blocks 3 are located between the fixed sleeve 9 and the hole wall until the next complete fault or incomplete fault is met;
the triggered arc-shaped block 3 has the advantages that due to the complex geological conditions, gaps may exist between the inflated air bags 12 and faults, however, the air bags 12 can block most fault cracks, when the anchor rod 1 is grouted, grout is filled in the anchor rod 1 and a drill hole, the cement grout is fixedly connected with the inner wall of the outer wall of the anchor rod 1, the fixed sleeve 9, the screw 8, the adjusting sleeve 7 and the spring 4, and the situation that the existing anchor rod 1 is easy to pull out after the cement grout is fixed can be avoided;
when cement slurry flows to a fault, most fault cracks can be blocked by the air bags 12, gaps may exist between the inflated air bags 12 and the fault, the cement slurry enters the fault through the gaps, and the cement slurry amount entering the gaps of the air bags 12 is small due to the constant injection pressure of the cement slurry, so that the precipitation of the cement slurry at the gaps of the air bags 12 can be accelerated, the gaps of the air bags 12 can be rapidly blocked, and by arranging the blocking equipment, most spaces of the fault cracks can be blocked by the air bags 12, so that openings of the fault can be remarkably reduced, the blocking can be rapidly completed at the inlet of the fault in the grouting process, the condition that a large amount of slurry needs to be injected is avoided, the waste of the slurry is avoided, and meanwhile, the missing injection cavity cannot occur due to the fact that less slurry needs to be used for blocking the fault;
moreover, plugging device stretches into the fault zone, can not lead to the fact the influence to the space between drilling pore wall and the stock 1, and the space between stock 1 outer wall and the drilling inner wall is the whole of intercommunication wantonly, is a whole after the cement thick liquid between stock 1 outer wall and the drilling inner wall is stereotyped, therefore anti-shear capacity can not receive the influence.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A geotechnical engineering supporting method is characterized in that: comprises the following steps of (a) carrying out,
s1, construction preparation work;
s2, determining grouting parameters through a grouting and water stopping test;
s3, drilling, wherein the plugging device for plugging fault cracks is brought into the plugging device for plugging the fault cracks through the anchor rod (1) in the drilling process, the plugging device automatically extends into the fault cracks after reaching the faults, and the plugging device entering the fault cracks is separated from the anchor rod (1) and expands to plug the fault cracks;
s4, grouting, and injecting the grout into a grouting hole through pressure equipment;
and S5, sealing holes, and sealing holes after grouting is completed.
2. The geotechnical engineering support method according to claim 1, wherein: and S2, grouting parameters comprise grouting materials, hole position arrangement modes, grouting ranges and grouting pressures.
3. A geotechnical engineering support device, which comprises a support frame, the method is characterized in that: including platform truck, slip casting machine and stock (1), be fixed with the shutoff equipment that is used for shutoff fault crack on stock (1), the shutoff equipment is including being used for fixing fixed cover (9) on stock (1), be fixed with a plurality of screw rods (8) on fixed cover (9) lateral wall, there are adjusting collar (7) through threaded connection on screw rod (8), be fixed with spring (4) and gag lever post (6) on adjusting collar (7), spring (4) other end supports on arc piece (3) inner wall, be fixed with spacing collar (5) on arc piece (3) inner wall, gag lever post (6) stretch into in spacing collar (5), arc piece (3) encircle fixed cover (9) and form the ring form, be equipped with high-pressure gas chamber (17) and gasbag chamber (13) in arc piece (3), be equipped with high-pressure gas in high-pressure gas chamber (17), high-pressure gas chamber (17) is connected with air inlet (14) that stretch into gasbag chamber (13), there are second gas switch (21) through first stay cord (10), second gasbag switch (11) in proper order on air inlet (14), gasbag switch (13), second knob (21) intercommunication knob (21), an ejection opening for ejecting the air bag (12) is formed in the side part of the air bag cavity (13), and a protective sheet (16) covers the ejection opening.
4. Geotechnical engineering support equipment according to claim 3, characterized in that: blast pipe (14) end fixing has first fan-shaped shrouding (22), blast pipe (14) end rotation sealing connection first knob switch (25), first knob switch (25) internal fixation has the fan-shaped shrouding of second (23), first knob switch (25) are connected with communicating pipe (20) through the stay cord, communicating pipe (20) other end rotation sealing connection has second knob switch (21), second knob switch (21) internal fixation has the fan-shaped shrouding of third, second knob switch (21) rotate sealing connection with gasbag air inlet (15) intercommunication, gasbag air inlet (15) intercommunication internal fixation has the fan-shaped shrouding of fourth (24).
5. Geotechnical engineering support equipment according to claim 4, characterized in that: the first knob switch (25) and the second knob switch (21) are fixedly connected with the first pull rope (10) and the second pull rope (11) respectively, and the first pull rope (10) and the second pull rope (11) are wound on the first knob switch (25) and the second knob switch (21) respectively.
6. Geotechnical engineering support equipment according to claim 3, characterized in that: the high-pressure gas cavity (17) is provided with a gas filling port, and the high-pressure gas in the high-pressure gas cavity (17) is CO2.
7. Geotechnical engineering support equipment according to claim 3, characterized in that: the limiting ring (2) is further sleeved outside the arc-shaped block (3).
8. Geotechnical engineering support equipment according to claim 3, characterized in that: the bullet export is seted up with arc piece (3) lateral wall, arc piece (3) lateral wall has the bullet export to separate for upper wall and lower wall, upper wall, lower wall all are arc.
9. Geotechnical engineering support equipment according to claim 8, characterized in that: the protective sheet (16) is positioned in a recess formed by the upper wall and the lower wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211169274.4A CN115263391A (en) | 2022-09-26 | 2022-09-26 | Geotechnical engineering supporting method and supporting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211169274.4A CN115263391A (en) | 2022-09-26 | 2022-09-26 | Geotechnical engineering supporting method and supporting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115263391A true CN115263391A (en) | 2022-11-01 |
Family
ID=83757424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211169274.4A Pending CN115263391A (en) | 2022-09-26 | 2022-09-26 | Geotechnical engineering supporting method and supporting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115263391A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118327058A (en) * | 2024-06-12 | 2024-07-12 | 成都建工第六建筑工程有限公司 | Anti-floating anchor rod and supporting structure thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204722430U (en) * | 2015-06-10 | 2015-10-28 | 浙江海洋学院 | A kind of box lifeboat |
| CN105696599A (en) * | 2016-02-06 | 2016-06-22 | 北京市勘察设计研究院有限公司 | Pressurizing grouting method utilizing air bag blockage device |
| CN108756971A (en) * | 2018-07-12 | 2018-11-06 | 安徽理工大学 | A kind of hollow grouting cable anchor and its staged isolation grouting method |
| CN111472810A (en) * | 2020-04-15 | 2020-07-31 | 高军 | High-pressure grouting device and method based on weak broken surrounding rock |
| CN112031812A (en) * | 2020-08-28 | 2020-12-04 | 浙大城市学院 | Drainage positioning grouting pipe piece and construction method thereof |
| CN213980831U (en) * | 2020-12-08 | 2021-08-17 | 淮南东华欧科矿山支护设备有限责任公司 | Anchor rod convenient for grouting and plugging |
| CN113737788A (en) * | 2021-10-10 | 2021-12-03 | 中国十七冶集团有限公司 | Assembly type multi-purpose hollow grouting anchor rod with densely-distributed holes and bifurcations and construction method thereof |
| CN113982653A (en) * | 2021-12-02 | 2022-01-28 | 河北交通职业技术学院 | Tunnel fractured rock mass grouting water plugging device and method |
| CN114575905A (en) * | 2022-03-16 | 2022-06-03 | 西安科技大学 | Anchor rod for roof broken by protective layer and anchoring method thereof |
-
2022
- 2022-09-26 CN CN202211169274.4A patent/CN115263391A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204722430U (en) * | 2015-06-10 | 2015-10-28 | 浙江海洋学院 | A kind of box lifeboat |
| CN105696599A (en) * | 2016-02-06 | 2016-06-22 | 北京市勘察设计研究院有限公司 | Pressurizing grouting method utilizing air bag blockage device |
| CN108756971A (en) * | 2018-07-12 | 2018-11-06 | 安徽理工大学 | A kind of hollow grouting cable anchor and its staged isolation grouting method |
| CN111472810A (en) * | 2020-04-15 | 2020-07-31 | 高军 | High-pressure grouting device and method based on weak broken surrounding rock |
| CN112031812A (en) * | 2020-08-28 | 2020-12-04 | 浙大城市学院 | Drainage positioning grouting pipe piece and construction method thereof |
| CN213980831U (en) * | 2020-12-08 | 2021-08-17 | 淮南东华欧科矿山支护设备有限责任公司 | Anchor rod convenient for grouting and plugging |
| CN113737788A (en) * | 2021-10-10 | 2021-12-03 | 中国十七冶集团有限公司 | Assembly type multi-purpose hollow grouting anchor rod with densely-distributed holes and bifurcations and construction method thereof |
| CN113982653A (en) * | 2021-12-02 | 2022-01-28 | 河北交通职业技术学院 | Tunnel fractured rock mass grouting water plugging device and method |
| CN114575905A (en) * | 2022-03-16 | 2022-06-03 | 西安科技大学 | Anchor rod for roof broken by protective layer and anchoring method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118327058A (en) * | 2024-06-12 | 2024-07-12 | 成都建工第六建筑工程有限公司 | Anti-floating anchor rod and supporting structure thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110259383B (en) | Advancing drilling and grouting integrated device and using method | |
| CN110099859B (en) | System for storing compressed gas and method of construction thereof | |
| WO2006065144A1 (en) | A method and a device for sealing a void incompletely filled with a cast material | |
| CN115263391A (en) | Geotechnical engineering supporting method and supporting equipment | |
| CN110984900A (en) | Device and method for stopping water in drilling | |
| KR102158606B1 (en) | Early-hardening grout for delaying hardening and grouting method using the same | |
| CN113982653B (en) | Tunnel fractured rock mass grouting water plugging device and method | |
| JP2000257057A (en) | Ground injection device for ground and injection method | |
| CN109915068B (en) | Automatic water-absorbing plugging and hole-sealing device and method for near-horizontal coal seam gas extraction drill hole | |
| KR100927038B1 (en) | Pipe grouting method using ufunctional injection pipes | |
| CN113481975B (en) | Air-entraining stirring pore-forming construction method for cement stirring pile | |
| CN113236181B (en) | Water stopping device for water pumping test of exploration well | |
| CN110080763A (en) | A kind of coal seam country rock pressure relief method based on internal-injection type static crushing pressure relief means thereon | |
| CN111188350A (en) | Confined water dewatering well structure and dewatering method | |
| CN110219616A (en) | A kind of coal-bed gas pressure measuring device and its measurement method | |
| CN113737786A (en) | Pile end bottom grouting device, cast-in-place pile and construction method thereof | |
| CN106869967A (en) | The routed sand remote jet disturbance grouting method of driving face gushing water | |
| CN110656643A (en) | Grouting type rotating steel pipe pile and construction method | |
| CN216110832U (en) | Gas drainage hole packer | |
| JP3386425B2 (en) | Injection pipe device and ground injection method | |
| KR100943939B1 (en) | Soil nailing apparatus using pipe | |
| KR20190136221A (en) | Grouting apparatus the grouting method thereof | |
| CN211773807U (en) | Confined water precipitation well structure | |
| US20120285696A1 (en) | Cement Wiper Plug with Size Changing Feature | |
| CN108442901A (en) | A kind of tunnel boring water burst blocking device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221101 |
|
| RJ01 | Rejection of invention patent application after publication |