CN209586404U - A kind of grouted anchor bar slurry stop based on hydraulic dilatation - Google Patents
A kind of grouted anchor bar slurry stop based on hydraulic dilatation Download PDFInfo
- Publication number
- CN209586404U CN209586404U CN201920174181.8U CN201920174181U CN209586404U CN 209586404 U CN209586404 U CN 209586404U CN 201920174181 U CN201920174181 U CN 201920174181U CN 209586404 U CN209586404 U CN 209586404U
- Authority
- CN
- China
- Prior art keywords
- grouting plug
- injected back
- hydraulic
- stop grouting
- stop
- 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.)
- Active
Links
Abstract
A kind of grouted anchor bar slurry stop based on hydraulic dilatation, belongs to geotechnical engineering and mining engineering technical field.The grouted anchor bar slurry stop based on hydraulic dilatation, including recyclable hydraulic dilatation stop grouting plug and it is injected back into oil pump systems, recyclable hydraulic dilatation stop grouting plug includes stop grouting plug main body, stop grouting plug main body is equipped with first through hole and the second through-hole, and the oil pipe that is injected back into that the second through-hole is injected back into oil pump systems by being injected back into oil valve connects.The grouted anchor bar slurry stop based on hydraulic dilatation, only slurry plugging effect is good, only slurry ability is controllable, applied widely, structure is simple and convenient to operate, recyclable recycling.
Description
Technical field
The utility model relates to geotechnical engineering and mining engineering technical field, in particular to a kind of note based on hydraulic dilatation
Starch anchor pole slurry stop.
Background technique
In geotechnical engineering and mining engineering field, suspension roof support exists as a kind of effective surrounding rock supporting technique
It is widely applied in underground mine, Tunnel Engineering, open slope reinforcing and other geotechnical engineerings, but to weak, broken and high stress
For rock mass, common Effects of Supporting is bad；The appearance of hollow grouting anchor support process, by anchoring and grouting process one
Body, by hollow bolt into drilling high-pressure injected water slurry liquid, fill fragmented rock body in joint fissure, improve country rock
Loose structure improves the integral strength of country rock, greatly improves the effect of suspension roof support.
For grouted anchor bar support process, currently used grouting pressure is generally 5MPa-10MPa, higher slip casting
Pressure can guarantee that slurries generate biggish range of scatter in fragmented rock body, realize preferable surrounding rock consolidation supporting effect, but infuse
The increase for starching pressure, to only more stringent requirements are proposed for slurry system: good only slurry system can be realized effectively to armature boring hole
The closure of mouth improves grouting pressure in drilling, and otherwise will appear the slurry that overflows, spillage, phenomenon of whitewashing during slip casting, so that drilling
Interior slurry pressure is unable to reach design value, strong influence grouting support effect.
Currently used plain edition stop grouting plug is mostly circular platform type rubber stoping flowing pulp plug either circular platform type rigid plastics stop grouting plug,
Its smaller diameter end size is less than bore diameter, and larger diameter end size is greater than bore diameter, and there is the through-hole passed through for anchor pole at middle part,
The plain edition stop grouting plug is easy to appear following problem in actual use: (1) stop grouting plug deformation range is limited, to anchor pole and
The extrusion capability of the wall of a borehole is limited, cannot achieve effective closure to higher grouting pressure hole；(2) rock crusher where drilling
Degree is higher, when drilling forming is bad, easily forms gap between stop grouting plug outer and the wall of a borehole, can not block and then cause to leak
Slurry, whitewashing phenomenon；(3) labor intensity of workers is big when constructing, especially when only starching closure to armature boring aperture on carrying out, operation
It is extremely inconvenient.In conclusion plain edition stop grouting plug, in grouted anchor bar support process, existing greatest problem is bad adaptability,
Good closure only slurry effect can not be provided for high-pressure slip-casting, slip casting failure is even resulted in, so that the inlet well engineering
It scraps, not only causes economic loss, even more directly influence supporting effect, form security risk.
To solve the problems, such as that plain edition stop grouting plug exists in terms of engineer application, people have carried out correlative study: (1) Chinese
107654249 A of patent application CN discloses a kind of novel anchor rod, anchor cable combined type stop grouting plug, is made of elastic material
Center stop grouting plug and end face stop grouting plug join end to end composition, which is changing of carrying out on the basis of plain edition stop grouting plug
Into, it is still limited to the deformation range and shut-off capacity of elastic material, for high-pressure slip-casting technique, the only slurry effect of the stop grouting plug
Fruit cannot still meet the requirements；(2) 102296603 B of Chinese patent CN discloses a kind of anchor pole (anchor cable) stop grouting plug and only starches
System, based on the rubber material air bag that is arranged in upper and lower metal partion (metp), which needs in advance in use
Anchor pole (anchor cable) is fixed as one with slurry stop, then whole to be put into drilling, is limited by drilling device and technique, which exists
Certain grouted anchor bar support engineerings construction site can not implement, and limit the application range of the patent；It should only slurry system use
In need to connect multiple pipelines and observe situation control valve, operating process is complicated；The stop grouting plug using when rubber pneumatic bag in fill
Slurries are expired, entire stop grouting plug firmly blocks in the borehole under the action of collision deformation after grout cures, can not recycle again sharp
With allowing to take out stop grouting plug and drill, the slurries of solidified inside are increased into but also the device can not be reused
This.
Summary of the invention
Only starch that effect is bad, the scope of application is small, structure and complicated for operation, no to solve stop grouting plug of the existing technology
The technical problems such as recoverable, the utility model provide a kind of grouted anchor bar slurry stop based on hydraulic dilatation, have
Only slurry plugging effect is good, only slurry ability is controllable, applied widely, structure is simple and convenient to operate, recyclable recycling etc. is excellent
Point.
To achieve the goals above, the technical solution of the utility model is:
A kind of grouted anchor bar slurry stop based on hydraulic dilatation, including hydraulic dilatation stop grouting plug can be recycled and be injected back into oil pump
System；
The recyclable hydraulic dilatation stop grouting plug includes stop grouting plug main body, and the stop grouting plug main body is in annulus column, in
Hydraulic fluid chamber is equipped between wall and outer wall, the top of the stop grouting plug main body is equipped with polytetrafluoroethylene film, the stop grouting plug master
The bottom end of body is equipped with first through hole and the second through-hole, and the first through hole and the second through-hole be connected to hydraulic fluid chamber, and described the
One through-hole is connect with safety valve, and second through-hole is connect with oil valve is injected back into；
The oil pump systems that are injected back into include pressure gauge, regulating valve, are injected back into oil pipe and are injected back into oil pump, and the oil pump that is injected back into passes through
It is injected back into oil pipe and is connect with oil valve is injected back into, the pressure gauge and regulating valve are arranged on being injected back into oil pipe.
The wall thickness of the bottom end on the top and stop grouting plug main body of the stop grouting plug main body is 10-30mm.
Wall thickness of the hydraulic fluid chamber close to stop grouting plug main body inner wall side is 2-5mm, and the hydraulic fluid chamber is close to only slurry
The wall thickness for filling in body outer wall side is 2-5mm.
The stop grouting plug main body is made of rubber.
The hydraulic fluid chamber is annulus column.
The regulating valve is located at close to the side for being injected back into oil pump, and the pressure gauge is located remotely from the side for being injected back into oil pump.
The oil pump that is injected back into is hand oil pump or electric oil pump.
The outer wall of the bottom end of the stop grouting plug main body is equipped with steel garter spring.
The bottom end of the stop grouting plug main body is symmetrically arranged with steel bracing wire, the described one end of steel bracing wire far from stop grouting plug main body
Equipped with pull ring.
A kind of construction method of above-mentioned grouted anchor bar slurry stop based on hydraulic dilatation, comprising the following steps:
Step 1: selecting recyclable hydraulic dilatation stop grouting plug, selection is mutually fitted with hollow grouting anchor size and bore size
The recyclable hydraulic dilatation stop grouting plug answered, and the oil valve that is injected back into of its bottom end is connect with oil pipe is injected back into；
Step 2: recyclable hydraulic dilatation stop grouting plug is installed, by hollow note of the top of stop grouting plug main body towards in drilling
Anchor pole direction is starched, the anchor pole through-hole in the middle part of stop grouting plug main body is inserted in along hollow grouting anchor exposure in one end of country rock, and
It is placed on drilling orifice, adjusting is injected back into oil pump in oiling state, the valve switch for being injected back into oil valve is opened, by being injected back into oil pump to liquid
The expansion of hydraulic dilatation stop grouting plug the first side wall can be recycled to hollow slip casting anchor under the effect of hydraulic fluid chamber pressure in pumping cavity oiling
Bar generates extruding, and second sidewall expansion generates extruding to drill hole inner wall, completes the anchoring temporarily to hollow grouting anchor；
Step 3: recyclable hydraulic dilatation stop grouting plug is fixed in the borehole, it is required according to grouting pressure, by being injected back into oil
It pumps to hydraulic fluid chamber and continues oiling, pass through pressure gauge dynamic observation and control the pressure in hydraulic fluid chamber, reach design value
Later, stop oiling, close the valve switch for being injected back into oil valve, oil pump will be injected back into and be adjusted to oil return state, lay down and be injected back into oil pipe
Pressure disconnects the connection for being injected back into oil pipe and being injected back between oil valve, and hydraulic fluid chamber is in high-pressure state at this time, in the expansion of oil pressure
Under effect, the first side wall and second sidewall be deformed respectively with radial compression power, recyclable hydraulic dilatation stop grouting plug is fixed
In the borehole, realize that high-pressure slip-casting only starches function；
Step 4: recycling recyclable hydraulic dilatation stop grouting plug, high-pressure slip-casting operation is carried out to hollow grouting anchor, slip casting is complete
Cheng Hou, interior grout cures hole to be drilled, connection are injected back into oil pipe and are injected back into oil valve, open valve switch, make in hydraulic fluid chamber in height
Pressure condition hydraulic oil is injected back into oil pump along being injected back into oil pipe and flow back into, and hydraulic fluid chamber internal oil pressure is restored to original state at this time, closes
Valve closing door switch, and the connection for being injected back into oil pipe and being injected back between oil valve is disconnected, hydraulic dilatation stop grouting plug bottom can be recycled in subsequent drawing
The pull ring at end makes it pull steel bracing wire and recyclable hydraulic dilatation stop grouting plug is taken out recycling from drilling.
The utility model has the beneficial effects that
(1) it is made of rubber material and the internal recyclable hydraulic dilatation stop grouting plug for being equipped with hydraulic fluid chamber, in it
Under the action of portion's hydraulic fluid chamber high pressure oil, it can produce biggish flexible deformation and radial compression power, anchor pole and drilling be implemented with
Effect, which blocks, only starches；
(2) it is produced in a manner of hydraulic dilatation by the high-pressure radial extruding force between rubber material and anchor pole and the wall of a borehole
Raw biggish axial friction, the grouted anchor bar support process suitable for various different grouting pressures；
(3) the utility model structure is simple, easy to operate, and when construction is not influenced by drilling device and grouted anchor bar technique,
Labor intensity of workers is low when construction；
(4) after the completion of grouting process, by simple piping connection and operation, it can be achieved that stopping to recyclable hydraulic dilatation
Recycling and reusing for slurry plug, reduces the cost in grouted anchor bar support process, improves the recycling rate of waterused for only starching system；
(5) the utility model is according to the grouting pressure of hollow grouting anchor construction process requirement, the pressure of hydraulic fluid chamber into
Row control and adjusting, it is applied widely.
Detailed description of the invention
Fig. 1 is a kind of overall structure signal of grouted anchor bar slurry stop based on hydraulic dilatation provided by the utility model
Figure；
Fig. 2 is the sectional view of recyclable hydraulic dilatation stop grouting plug provided by the utility model；
Fig. 3 is the sectional view along A-A of the utility model Fig. 2；
Fig. 4 is a kind of working condition of grouted anchor bar slurry stop in the borehole based on hydraulic dilatation of the utility model
Schematic diagram.
In figure, 1- stop grouting plug main body, 2- steel garter spring, 3- safety valve, 4- is injected back into oil valve, and 5- nipple, 6- steel is drawn
Line, 7- pull ring, 8- are injected back into oil pipe, 9- pressure gauge, 10- regulating valve, and 11- is injected back into oil pump, 12- polytetrafluoroethylene film, and 13- is only starched
Fill in the top of main body, 14- second sidewall, 15- the first side wall, 16- hydraulic fluid chamber, the bottom end of 17- stop grouting plug main body, 18- second
Through-hole, 19- internal screw thread, 20- anchor pole through-hole, 21- first through hole, 22- are injected back into oil valve nipple, 23- hollow grouting anchor,
24- drill hole inner wall, 25- hydraulic oil, 26- valve switch.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " front end ", " after
The orientation or positional relationship of the instructions such as end ", " both ends ", " one end ", " other end " is that orientation based on the figure or position are closed
System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition,
Term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.Unless otherwise clear
Regulation and restriction, term " installation ", " being provided with ", " connection " etc. shall be understood in a broad sense, such as " connection ", can be fixation
Connection, may be a detachable connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly
It is connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Of the existing technology in order to solve the problems, such as, as shown in Figures 1 to 4, the utility model provides a kind of based on liquid
The grouted anchor bar slurry stop of companding, including hydraulic dilatation stop grouting plug can be recycled and be injected back into oil pump systems；Hydraulic expansion can be recycled
Opening stop grouting plug includes stop grouting plug main body 1, and stop grouting plug main body 1 is made of rubber, and stop grouting plug main body 1 is in annulus column, inner wall
Hydraulic fluid chamber 16 is equipped between outer wall, hydraulic fluid chamber 16 is annulus column, and the top 13 of stop grouting plug main body is equipped with polytetrafluoroethyl-ne
The bottom end 17 of alkene film 12, stop grouting plug main body is equipped with first through hole 21 and the second through-hole 18, first through hole 21 and the second through-hole 18
It is connected to hydraulic fluid chamber 16, first through hole 21 is connect with safety valve 3, and the second through-hole 18 is connect with oil valve 4 is injected back into；It is injected back into oil pump
System includes pressure gauge 9, regulating valve 10, is injected back into oil pipe 8 and is injected back into oil pump 11, is injected back into oil pump 11 by being injected back into oil pipe 8 and being injected back into
Oil valve 4 connects, and pressure gauge 9 and regulating valve 10 are arranged on being injected back into oil pipe 8, and regulating valve 10 is injected back into the one of oil pump 11 positioned at close
Side, pressure gauge 9 are located remotely from the side for being injected back into oil pump 11, the wall of the bottom end 17 on the top 13 and stop grouting plug main body of stop grouting plug main body
Thickness is 10-30mm, and wall thickness of the hydraulic fluid chamber 16 close to 1 inner wall side of stop grouting plug main body is 2-5mm, and hydraulic fluid chamber 16 is close to only
The wall thickness of slurry plug 1 outer wall side of main body is 2-5mm.
In the present embodiment, as shown in Figure 1, I is recyclable hydraulic dilatation stop grouting plug, II is to be injected back into oil pump systems.Such as Fig. 2 and
Shown in 3, the through-hole in 1 center of stop grouting plug main body is anchor pole through-hole 20, passes through when only slurry is blocked for hollow grouting anchor 23, only starches
The both ends for filling in main body 1 are respectively its top and bottom end, and the wall thickness of its top and bottom end is 20mm, the top of stop grouting plug main body
13 and bottom end wall thickness it is larger, make its by hydraulic fluid chamber 16 oil pressure act on when be unlikely to deform, hydraulic fluid chamber 16 is close
The wall thickness of 1 inner wall side of stop grouting plug main body is 3mm, i.e. the first side wall 15 in Fig. 2, hydraulic fluid chamber 16 is close to stop grouting plug main body 1
The wall thickness of outer wall side is 3mm, i.e. second sidewall 14 in Fig. 2, and the wall thickness of the first side wall 15 and second sidewall 14 is relatively thin, is made
It is easier to deform when being acted on by the oil pressure in hydraulic fluid chamber 16, wherein 15 deformable squeeze anchor pole of the first side wall, second sidewall
14 deformable squeeze drill hole inner walls 24, to realize preferable only slurry plugging effect, in construction, 13, the top of stop grouting plug main body
In in drilling hole, anchor pole direction towards in drilling, the top 13 of stop grouting plug main body is covered with polytetrafluoroethylene film 12, with brill
Slurries and its solidifying body contact that high pressure is injected in hole reduce glutinous between recyclable hydraulic dilatation stop grouting plug and grout cures body
Power is tied, takes out recyclable hydraulic dilatation stop grouting plug from drilling after the completion of slip casting, is reused.Hydraulic fluid chamber 16 is annulus column
Shape cavity, for accommodating hydraulic oil 25, when construction, the original state of 16 internal oil pressure of hydraulic fluid chamber is full of 25 shape of hydraulic oil
State, i.e. 16 internal pressure of hydraulic fluid chamber is identical as atmospheric pressure, and stop grouting plug main body 1 is undeformed, the hydraulic oil 25 in hydraulic fluid chamber 16
To recyclable hydraulic dilatation stop grouting plug no pressure, it is not necessary that operation is exhausted when oiling is pressurizeed.First through hole 21 and the second through-hole
18 inner wall is equipped with internal screw thread 19, and first through hole 21 is threadedly coupled with safety valve 3, i.e., is screwed into safety valve spiral shell to first through hole 21
Line connector is with connection safety valve 3, and safety valve 3 is to prevent hypertonia in hydraulic fluid chamber 16 from damaging recyclable hydraulic dilatation only slurry
Plug realizes unloading pressure protection function by safety valve 3 before 16 internal pressure of hydraulic fluid chamber reaches capacity destruction value；Second through-hole
18 are threadedly coupled with oil valve 4 is injected back into, i.e., be screwed into the second through-hole 18 be injected back into oil valve nipple 22 with connect be injected back into oil valve 4, infuse
State of the oil return valve 4 to control and keep hydraulic oil 25 in hydraulic fluid chamber 16 is injected back into oil valve 4 equipped with valve switch 26, valve
Hydraulic fluid chamber 16 is communicated with oil pump 11 is injected back into when switch 26 is opened, and is in oiling pressurization or oil return depressurization phase, valve switch 26
When closure, keep being in stable state in hydraulic fluid chamber 16, therefore valve switch 26 is generally in closed state.
In the present embodiment, being injected back into oil pump 11 is hand oil pump or electric oil pump, is mainly used for injecting into hydraulic fluid chamber 16
Hydraulic oil 25 reaches required pressure, or 25 oil return of hydraulic oil for being in high pressure conditions in hydraulic fluid chamber 16 is unloaded and is depressed into atmosphere
Pressure.Regulating valve 10 is located at close to the side for being injected back into oil pump 11, and pressure gauge 9 is located remotely from the side for being injected back into oil pump 11, and pressure gauge 9 is used
The pressure state of hydraulic oil 25 in dynamic observation hydraulic fluid chamber 16, by the reading in pressure gauge 9, control is injected back on oil valve 4
Valve switch 26, and then realize adjustment to pressure in hydraulic fluid chamber 16, regulating valve 10, which is located at, is injected back into oil pump 11 and pressure gauge 9
Between, for adjusting the working condition for being injected back into oil pump 11 and being in oiling pressurization or oil return release.The bottom end 17 of stop grouting plug main body
Outer wall be equipped with steel garter spring 2,17 radial outer wall of bottom end of stop grouting plug main body is equipped with steel garter spring 2, and steel garter spring 2 can limit
Recyclable hydraulic dilatation stop grouting plug deforms when 16 oiling of hydraulic fluid chamber is pressurized, and first through hole 21 and safety valve 3 is avoided to connect
With 4 junction of oil valve is injected back into oil leakage phenomenon occurs for the place of connecing and the second through-hole 18.The bottom end 17 of stop grouting plug main body is symmetrically arranged with steel
Matter bracing wire 6, steel bracing wire 6 are equipped with pull ring 7 far from one end of stop grouting plug main body 1, and steel bracing wire 6 is close to the bottom end of stop grouting plug main body
17 center, high-pressure slip-casting operation terminate and grout cures after, can will be can be recycled by steel bracing wire 6 and pull ring 7
Hydraulic dilatation stop grouting plug is pulled out from drilling and is recycled and reused, and it is thin that the top 13 of stop grouting plug main body is equipped with polytetrafluoroethylene (PTFE)
The steel bracing wire 6 and pull ring 7 that film 12 and its bottom end are equipped with cooperate, and realize the recycling of recyclable hydraulic dilatation stop grouting plug.
A kind of construction method of above-mentioned grouted anchor bar slurry stop based on hydraulic dilatation, comprising the following steps:
Step 1: selecting recyclable hydraulic dilatation stop grouting plug, select and 23 size of hollow grouting anchor and bore size phase
The recyclable hydraulic dilatation stop grouting plug adapted to, and the oil valve 4 that is injected back into of its bottom end is connect with oil pipe 8 is injected back into；
Step 2: install recyclable hydraulic dilatation stop grouting plug, by the top 13 of stop grouting plug main body towards hollow in drilling
23 direction of grouted anchor bar, by the anchor pole through-hole 20 at 1 middle part of stop grouting plug main body along 23 exposure of hollow grouting anchor in the one of country rock
End cap enters, and is placed on drilling orifice, and adjusting is injected back into oil pump 11 in oiling state, opens the valve switch 26 for being injected back into oil valve 4, leads to
It crosses and is injected back into oil pump 11 to 16 oiling of hydraulic fluid chamber, under the effect of 16 pressure of hydraulic fluid chamber, recyclable hydraulic dilatation stop grouting plug first
The expansion of side wall 15 generates extruding to hollow grouting anchor 23, and the expansion of second sidewall 14 generates extruding to drill hole inner wall 24, completes
To the anchoring temporarily of hollow grouting anchor 23；
Step 3: recyclable hydraulic dilatation stop grouting plug is fixed in the borehole, it is required according to grouting pressure, by being injected back into oil
Pump 11 continues oiling to hydraulic fluid chamber 16, passes through 9 dynamic observation of pressure gauge and controls the pressure in hydraulic fluid chamber 16, reaches
After design value, stop oiling, closes the valve switch 26 for being injected back into oil valve 4, oil pump 11 will be injected back into and be adjusted to oil return state, laid down
It is injected back into the pressure of oil pipe 8, disconnects the connection for being injected back into oil pipe 8 and being injected back between oil valve 4, hydraulic fluid chamber 16 is in high pressure shape at this time
State, under the dilating effect of oil pressure, the first side wall 15 and second sidewall 14 be deformed respectively with radial compression power, will can be recycled
Hydraulic dilatation stop grouting plug is fixed in the borehole, realizes that high-pressure slip-casting only starches function；
Step 4: recycling recyclable hydraulic dilatation stop grouting plug, high-pressure slip-casting operation, slip casting are carried out to hollow grouting anchor 23
After the completion, interior grout cures hole to be drilled, connection are injected back into oil pipe 8 and are injected back into oil valve 4, open valve switch 26, make hydraulic fluid chamber 16
In be injected back into oil pump 11 in high pressure conditions hydraulic oil 25 along being injected back into oil pipe 8 and flow back into, 16 internal oil pressure of hydraulic fluid chamber is extensive at this time
It is multiple to close valve switch 26 to original state, and the connection for being injected back into oil pipe 8 and being injected back between oil valve 4 is disconnected, subsequent drawing can return
The pull ring 7 for receiving hydraulic dilatation stop grouting plug bottom end makes it pull steel bracing wire 6 and takes out recyclable hydraulic dilatation stop grouting plug from drilling
Recycling.
In the present embodiment, a kind of grouted anchor bar slurry stop based on hydraulic dilatation of the utility model is in work progress
In, as shown in figure 4, P is the pressure acted in hydraulic fluid chamber 16, firstly, drilling, needs to carry out grouted anchor bar supporting in design
Position, the grouted anchor bar hole of Drilling respective aperture and depth inserts in the hole hollow grouting anchor 23 until bottom hole, hollow note
Slurry anchor pole 23 is located at bore inner one end, and the modes such as resin explosive roll or simple anchor head can be used and carry out end anchorage, can also be temporary
Shi Wuxu anchoring；Secondly, selecting recyclable hydraulic dilatation stop grouting plug, internal 20 diameter of anchor pole through-hole is selected to be slightly larger than hollow slip casting
23 diameter of anchor pole, outer diameter are slightly less than drilling internal diameter and match with 23 size of hollow grouting anchor and bore size recyclable
Hydraulic stop grouting plug is connect oil valve 4 is injected back into the oil pipe 8 that is injected back into for being injected back into oil pump 11 by nipple 5, and connection type is screw thread
Locking connection；Then, recyclable hydraulic dilatation stop grouting plug is installed, the top 13 for the stop grouting plug main body for being injected back into oil pump 11 will be connected with
Anchor pole direction towards in drilling, along anchor pole exposure in one end of country rock by the anchor pole through-hole 20 at the middle part of stop grouting plug main body 1 in
Empty grouted anchor bar 23 is inserted in, and is placed on drilling orifice, and adjusting is injected back into oil pump 11 in oiling state, opens the note of stop grouting plug bottom end
Oil return valve 4, by being injected back into oil pump 11 to 16 oiling of hydraulic fluid chamber inside recyclable hydraulic dilatation stop grouting plug, in hydraulic fluid chamber 16
Under pressure effect, the expansion of hydraulic dilatation stop grouting plug the first side wall 15 can be recycled, extruding, the expansion pair of second sidewall 14 are generated to anchor pole
Drill hole inner wall 24 generates extruding, if not carrying out end anchorage when drilling, so that it may by the way that hydraulic dilatation stop grouting plug can be recycled
The anchoring temporarily to anchor pole in drilling is realized, to prevent hollow grouting anchor 23 from falling off from drilling, by hollow grouting anchor
23 fix in the borehole, next require to be secured firmly to drill by recyclable hydraulic dilatation stop grouting plug further according to grouting pressure
In；Further, recyclable hydraulic dilatation stop grouting plug is fixed in the borehole, it is wanted according to the grouting pressure of grouted anchor bar support process
It asks, continues oiling to recyclable hydraulic dilatation stop grouting plug internal hydraulic pressure oil pocket 16 by being injected back into oil pump 11, pass through 9 dynamic of pressure gauge
It observes and controls the pressure in hydraulic fluid chamber 16, after reaching design value, oiling can be stopped, closing stop grouting plug main body
Bottom end 17 is injected back into oil valve 4, will be injected back into oil pump 11 and is adjusted to oil return state, lays down the pressure for being injected back into oil pipe 8, and disconnection is injected back into oil pipe
8 and the connection that is injected back between oil valve 4, hydraulic dilatation stop grouting plug internal hydraulic pressure oil pocket 16 can be recycled at this time and be in high-pressure state,
Under the dilating effect of oil pressure, the first side wall 15 and second sidewall 14 be deformed respectively with radial compression power, will can be recycled
Hydraulic dilatation stop grouting plug securely fixes in the borehole, realizes that high-pressure slip-casting only starches function；Further, recyclable hydraulic dilatation is recycled
Stop grouting plug carries out high-pressure slip-casting operation to hollow grouting anchor 23 according to the requirement of grouted anchor bar design of its support, after the completion of slip casting,
After interior grout cures hole to be drilled, reconnects the bottom end 17 for being injected back into oil pipe 8 and stop grouting plug main body being injected back on oil pump 11 and be injected back into oil
Valve 4 opens valve switch 26, allows in hydraulic fluid chamber 16 and is injected back into oil along being injected back into oil pipe 8 and flow back into high pressure conditions hydraulic oil 25
In pump 11,16 internal oil pressure of hydraulic fluid chamber is restored to original state at this time, and closing, which is injected back into oil valve 4 and disconnects, is injected back into oil pipe 8 and note
The pull ring 7 of hydraulic dilatation stop grouting plug can be recycled in connection between oil return valve 4, subsequent drawing, and so that it is pulled steel bracing wire 6 can return
It receives hydraulic dilatation stop grouting plug and takes out recycling from drilling；Finally, construction is completed, pallet is installed in anchor pole exposure country rock one end, is tightened
Pre-load nut completes grouted anchor bar work progress.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of grouted anchor bar slurry stop based on hydraulic dilatation, which is characterized in that including hydraulic dilatation stop grouting plug can be recycled
Be injected back into oil pump systems；
The recyclable hydraulic dilatation stop grouting plug includes stop grouting plug main body, the stop grouting plug main body be in annulus column, inner wall and
Hydraulic fluid chamber is equipped between outer wall, the top of the stop grouting plug main body is equipped with polytetrafluoroethylene film, the stop grouting plug main body
Bottom end is equipped with first through hole and the second through-hole, and the first through hole and the second through-hole are connected to hydraulic fluid chamber, and described first is logical
Hole is connect with safety valve, and second through-hole is connect with oil valve is injected back into；
The oil pump systems that are injected back into include pressure gauge, regulating valve, are injected back into oil pipe and are injected back into oil pump, and the oil pump that is injected back into is by being injected back into
Oil pipe is connect with oil valve is injected back into, and the pressure gauge and regulating valve are arranged on being injected back into oil pipe.
2. the grouted anchor bar slurry stop according to claim 1 based on hydraulic dilatation, which is characterized in that the stop grouting plug
The wall thickness of the bottom end on the top and stop grouting plug main body of main body is 10-30mm.
3. the grouted anchor bar slurry stop according to claim 1 based on hydraulic dilatation, which is characterized in that the hydraulic oil
Wall thickness of the chamber close to stop grouting plug main body inner wall side is 2-5mm, wall of the hydraulic fluid chamber close to stop grouting plug body outer wall side
Thickness is 2-5mm.
4. the grouted anchor bar slurry stop according to claim 1 based on hydraulic dilatation, which is characterized in that the stop grouting plug
Main body is made of rubber.
5. the grouted anchor bar slurry stop according to claim 1 based on hydraulic dilatation, which is characterized in that the hydraulic oil
Chamber is annulus column.
6. the grouted anchor bar slurry stop according to claim 1 based on hydraulic dilatation, which is characterized in that the regulating valve
Positioned at close to the side for being injected back into oil pump, the pressure gauge is located remotely from the side for being injected back into oil pump.
7. the grouted anchor bar slurry stop according to claim 1 based on hydraulic dilatation, which is characterized in that described to be injected back into oil
Pump is hand oil pump or electric oil pump.
8. the grouted anchor bar slurry stop according to claim 1 based on hydraulic dilatation, which is characterized in that the stop grouting plug
The outer wall of the bottom end of main body is equipped with steel garter spring.
9. the grouted anchor bar slurry stop according to claim 1 based on hydraulic dilatation, which is characterized in that the stop grouting plug
The bottom end of main body is symmetrically arranged with steel bracing wire, and the steel bracing wire is equipped with pull ring far from one end of stop grouting plug main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920174181.8U CN209586404U (en) | 2019-01-31 | 2019-01-31 | A kind of grouted anchor bar slurry stop based on hydraulic dilatation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920174181.8U CN209586404U (en) | 2019-01-31 | 2019-01-31 | A kind of grouted anchor bar slurry stop based on hydraulic dilatation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209586404U true CN209586404U (en) | 2019-11-05 |
Family
ID=68354291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920174181.8U Active CN209586404U (en) | 2019-01-31 | 2019-01-31 | A kind of grouted anchor bar slurry stop based on hydraulic dilatation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209586404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653782A (en) * | 2019-01-31 | 2019-04-19 | 丹东丹银矿冶有限责任公司 | A kind of grouted anchor bar slurry stop and its construction method based on hydraulic dilatation |
-
2019
- 2019-01-31 CN CN201920174181.8U patent/CN209586404U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653782A (en) * | 2019-01-31 | 2019-04-19 | 丹东丹银矿冶有限责任公司 | A kind of grouted anchor bar slurry stop and its construction method based on hydraulic dilatation |
| CN109653782B (en) * | 2019-01-31 | 2024-02-27 | 丹东丹银矿冶有限责任公司 | Grouting anchor rod grouting stopping device based on hydraulic expansion and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213952192U (en) | High-efficient slip casting pipe is used to foundation engineering | |
| CN207131371U (en) | Coal mine gas drainage holes controllable capsule bag type hole-sealing device with pressure | |
| CN104533452B (en) | A kind of underground coal mine crushes coal body stagewise grouting strengthening method | |
| CN102644471B (en) | Hole sealing machine and hole sealing method using hole sealing machine to perform small aperture grouting for anchoring anchor rope | |
| CN101871353B (en) | Method for soft rock roadway grouting and full-length prestress baseboard anchor cable comprehensive support | |
| CN204267064U (en) | Embedded classification constant-resistance shearing resistance large deformation anchor device | |
| CN104763436A (en) | Method and device for receiving pipe jacking machine under condition of high water pressure complicated geological conditions | |
| CN103993902B (en) | A kind of mash gas pumping drilling two step slip-casting hole-sealing method | |
| CN202023532U (en) | Hole packer for reinforcing for grouting in coal mine | |
| CN110344784A (en) | A kind of gushing water controlling device of the nearly horizontal orientation drilling of mine | |
| CN209586404U (en) | A kind of grouted anchor bar slurry stop based on hydraulic dilatation | |
| CN107313472A (en) | Pile for prestressed pipe bearing capacity of pile tip test device and method | |
| CN213450441U (en) | Tunnel stock reinforced structure | |
| CN114320206A (en) | Mining gas drainage hole sealing system | |
| CN109944236A (en) | Root pile actively follows track delamination pour slurry system and construction method | |
| CN206887949U (en) | A kind of assembled pressure-adjustable enlarging anchor rod structure | |
| CN108756971A (en) | A kind of hollow grouting cable anchor and its staged isolation grouting method | |
| CN210977395U (en) | Slip casting hole sealing device | |
| CN210370586U (en) | Water outlet elevation drilling and grouting water stopping device | |
| CN205370587U (en) | Broken country rock deep hole slip casting reinforcing apparatus in colliery | |
| CN109653782A (en) | A kind of grouted anchor bar slurry stop and its construction method based on hydraulic dilatation | |
| KR890004622B1 (en) | Method and device for filling cracks | |
| CN217629927U (en) | Steel pipe grout stopping device with steel and flexible combination | |
| CN214301869U (en) | A slip casting rifle for emergent leaking stoppage | |
| CN106593528B (en) | The air pressure fracturing high stress blocking-up method of tunnel large deformation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |