CN114320409B - Grouting anchor cable with pressure-controllable and pressure-yielding functions - Google Patents
Grouting anchor cable with pressure-controllable and pressure-yielding functions Download PDFInfo
- Publication number
- CN114320409B CN114320409B CN202111436642.2A CN202111436642A CN114320409B CN 114320409 B CN114320409 B CN 114320409B CN 202111436642 A CN202111436642 A CN 202111436642A CN 114320409 B CN114320409 B CN 114320409B
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- grouting
- pressure
- anchor cable
- slip casting
- grouting pipe
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000007569 slipcasting Methods 0.000 claims description 20
- 239000011440 grout Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 19
- 238000007789 sealing Methods 0.000 description 10
- 239000002002 slurry Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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- Piles And Underground Anchors (AREA)
Abstract
The application provides a grouting anchor cable with controllable pressure and yielding functions, and belongs to the technical field of grouting anchor cables. The grouting anchor cable with the pressure-controllable and pressure-yielding functions comprises an anchor cable body. The anchor cable comprises an anchor cable body, wherein a grouting pipe is arranged in the anchor cable body, a stirring grouting head is arranged at one end of the grouting pipe, a tray is arranged at one end of the anchor cable body, an anchorage device is arranged on one side of the tray, a grouting connector is connected with the other end of the anchor cable body in a threaded manner, a plurality of steel strands are wound on the outer side of one end of the grouting pipe, the steel strands uniformly and tightly surround the outer side of the grouting pipe in a spiral manner, a pressure control structure is arranged in the grouting pipe and comprises a spring, a piston is fixedly connected with the other end of the spring, the piston is movably connected in the grouting pipe, grading holes are formed in two sides of the grouting pipe, and the pressure-yielding spring in the main rod body can timely generate corresponding extrusion deformation.
Description
Technical Field
The application relates to the technical field of grouting anchor cables, in particular to a grouting anchor cable with a controllable pressure and yielding function.
Background
The problem of soft rock roadway support in the mining field is always a great difficulty in the field, particularly, the roadway support of weak surrounding rock and broken surrounding rock is very difficult, and the conventional supporting mode cannot effectively control the surrounding rock of the roadway.
The existing hollow grouting anchor cable has the advantages of high strength, large prestress, simple processing, convenient installation and the like, and is widely applied to supporting and reinforcing of coal mine roadways. However, when surrounding rock is broken and strong rheology occurs in the deep part, the surrounding rock of the roadway is deformed greatly, the requirement of coal mine production is difficult to meet, and the improvement of the existing anchor cable is needed.
Disclosure of Invention
In order to make up the defects, the application provides a grouting anchor cable with a pressure-controllable and pressure-yielding function, which aims at solving the problem of soft rock roadway support in the mining field, and particularly has the defects that the roadway support for surrounding rock is weak and broken is very difficult, and the conventional supporting mode can not effectively control the surrounding rock of the roadway.
The embodiment of the application provides a grouting anchor cable with a pressure-controllable and pressure-yielding function, which comprises an anchor cable body.
The inside slip casting pipe that is equipped with of anchor rope body, slip casting pipe one end is equipped with stirring slip casting head, anchor rope body one end is equipped with the tray, tray one side is equipped with the ground tackle, anchor rope body one end outside is equipped with the screw thread section, anchor rope body other end threaded connection has the slip casting connector, the slip casting passageway has been seted up in the slip casting connector, the slip casting connector includes the bolt head, bolt head one end is equipped with the screwed connection head, be equipped with threaded connection recess in the screwed connection head, the bolt head other end is equipped with the quick-operation joint, be equipped with first annular groove between bolt head and the quick-operation joint, the quick connector is characterized in that a second annular groove is formed in the quick connector, a sealing ring is arranged in the second annular groove, the grouting connector is of an integral structure formed by integrally processing, the threaded connector is in threaded connection with the threaded section, the grouting pipe is communicated with the grouting channel, a plurality of steel strands are wound on the outer side of one end of the grouting pipe, the steel strands uniformly and tightly surround the outer side of the grouting pipe in a spiral shape, a pressure control structure is arranged in the grouting pipe, the pressure control structure comprises a spring, the other end of the spring is fixedly connected with a piston, the piston is movably connected in the grouting pipe, and grading holes are formed in two sides of the grouting pipe.
In the implementation process, when the slurry passes through the grouting pump to provide pressure to enter the grouting pipe, the spring compression deformation principle is utilized to exert a certain pressure on the piston, the pressure compresses the spring to deform so as to push the piston to move towards the tail part of the anchor cable, and at the moment, the slurry in the grouting pipe flows out through the grading holes on the wall of the grouting pipe, so that grouting reinforcement of shallow surrounding rock is completed; when the grouting pressure is increased, the slurry pushes the piston to move, the piston compression spring is further deformed, the slurry moves forwards continuously, grouting reinforcement is carried out on deep surrounding rock, and therefore distribution and grading grouting on the surrounding rock can be achieved through flexible control of grouting pressure. When the surrounding rock receives great mining stress, the pressure spring that lets in the mobile jib body can in time take place corresponding extrusion deformation, and the anchor rope still can provide supporting force to the surrounding rock, and it is well resistant to realize letting, slip casting connector simple to operate and sealed effectual.
In a specific embodiment, a clamping piece is arranged on the inner side of the anchorage device, and the clamping piece is fixedly arranged on the anchor cable body.
In the implementation process, the sealing effect during grouting can be improved by the clamping piece.
In a specific embodiment, a grout stop plug is arranged on the other side of the tray, and the grout stop plug is fixedly arranged on the anchor cable body.
In the implementation process, by arranging the slurry stop plug, the sealing effect can be improved, and slurry leakage can be effectively prevented.
In a specific embodiment, a plug is arranged in the stirring grouting head.
In the implementation process, one end of the grouting pipe can be plugged by the aid of the plug.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a structure provided by an embodiment of the present application;
FIG. 2 is a schematic side cross-sectional view of a structure provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a grouting connector according to an embodiment of the present application;
fig. 4 is a schematic cross-sectional structural view of a grouting connector according to an embodiment of the present application.
In the figure: 100-anchor cable body; 110-grouting pipe; 111-steel stranded wires; 112-plug; 120-stirring grouting heads; 130-a tray; 131-an anchor; 132—clip; 133-a stopper; 140 thread segments; 200-grouting connectors; 210-grouting channel; 220-bolt heads; 230-a threaded connector; 231-threaded connection grooves; 240-quick connector; 241-a second annular groove; 242-sealing ring; 250-a first annular groove; 300-a pressure control structure; 310-spring; 311-piston; 312-hierarchical wells.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some of the embodiments of the present application, but not all of the embodiments. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without undue burden are within the scope of the present application.
Accordingly, the following detailed description of the embodiments of the present application, provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without undue burden are within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Referring to fig. 1, the present application provides a grouting anchor cable with pressure-controllable and pressure-yielding functions, which includes an anchor cable body 100.
Referring to fig. 1, 2, 3 and 4, a grouting pipe 110 is disposed in an anchor cable body 100, a stirring grouting head 120 is disposed at one end of the grouting pipe 110, a tray 130 is disposed at one end of the anchor cable body 100, an anchorage 131 is disposed at one side of the tray 130, a threaded section 140 is disposed at an outer side of one end of the anchor cable body 100, the threaded section 140 facilitates threaded installation and fixation, a grouting connector 200 is connected to the other end of the anchor cable body 100 in a threaded manner, a grouting channel 210 is disposed in the grouting connector 200, the grouting connector 200 comprises a bolt head 220, a threaded connector 230 is disposed at one end of the bolt head 220, a threaded connection groove 231 is disposed in the threaded connector 230, a quick connector 240 is disposed at the other end of the bolt head 220, a first annular groove 250 is disposed between the bolt head 220 and the quick connector 240, a second annular groove 241 is disposed on the quick connector 240, a sealing ring 242 is disposed in the second annular groove 241, the grouting connector 200 is an integral structure formed by integral processing, firstly, the grouting pipe 110 is installed in a threaded connection groove 231 of a threaded connector 230 through threaded connection, then a quick connector 240 of the grouting head is connected with a grouting high-pressure connector, wherein a sealing ring 242 plays a sealing role, a first annular groove 250 is convenient for clamping connection, further the quick connector 240 is prevented from being separated, the effects of quick connection, good sealing and reliable connection are achieved, the threaded connector 230 is in threaded connection with a threaded section 140, the grouting pipe 110 is communicated with a grouting channel 210, the grouting connector 200 is convenient to connect with an anchor rope body 100, grouting support is convenient to carry out, a plurality of steel strands 111 are wound on the outer side of one end of the grouting pipe 110, a plurality of steel strands 111 uniformly and tightly surround the outer side of the grouting pipe 110 in a spiral shape, a pressure control structure 300 is arranged in the grouting pipe 110, the pressure control structure 300 comprises a spring 310, the other end of the spring 310 is fixedly connected with a piston 311, the piston 311 is movably connected in the grouting pipe 110, and classification holes 312 are formed on two sides of the grouting pipe 110.
In this embodiment, the inner side of the anchor device 131 is provided with a clamping piece 132, the clamping piece 132 is fixedly installed on the anchor cable body 100, the sealing effect during grouting can be increased by the aid of the clamping piece 132, the other side of the tray 130 is provided with a grouting stop 133, the grouting stop 133 is fixedly installed on the anchor cable body 100, the sealing effect can be increased, and leakage can be effectively prevented.
In the present application, a plug 112 is installed in the stirring grouting head 120, and one end of the grouting pipe 110 can be plugged by the plug 112.
Specifically, the working principle of the grouting anchor cable with the pressure-controllable and pressure-yielding functions is as follows: when the slurry passes through the grouting pump to provide pressure and enters the grouting pipe 110, the spring 310 is utilized to exert a certain pressure on the piston 311 by virtue of the compression deformation principle of the spring 310, the pressure compresses the spring 310 to deform so as to push the piston 311 to move towards the tail part of the anchor cable, and at the moment, the slurry in the grouting pipe 110 flows out through the grading holes 312 on the wall of the grouting pipe 110, so that grouting reinforcement of shallow surrounding rock is completed; when the grouting pressure is increased, the grouting liquid pushes the piston 311 to move, the piston 311 compresses the spring 310 to further deform, the grouting liquid continues to move forward, and the deep surrounding rock is grouting reinforced, so that the grouting pressure can be flexibly controlled to realize the distributed and graded grouting of the surrounding rock. When surrounding rock receives great mining stress, the internal pressure spring 310 that lets of mobile jib can in time take place corresponding extrusion deformation, and the anchor rope still can provide supporting force to the surrounding rock, realizes letting in to have the resistance, slip casting connector 200 simple to operate and sealed effectual.
The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (4)
1. The utility model provides a controllable pressure concurrently lets slip casting anchor rope of pressure function, its characterized in that includes
Anchor rope body (100), inside slip casting pipe (110) that is equipped with of anchor rope body (100), slip casting pipe (110) one end is equipped with stirring slip casting head (120), anchor rope body (100) one end is equipped with tray (130), tray (130) one side is equipped with ground tackle (131), anchor rope body (100) one end outside is equipped with screw thread section (140), anchor rope body (100) other end threaded connection has slip casting connector (200), slip casting passageway (210) have been seted up in slip casting connector (200), slip casting connector (200) include bolt head (220), bolt head (220) one end is equipped with screw thread connector (230), be equipped with threaded connection recess (231) in screw thread connector (230), the bolt head (220) other end is equipped with quick-operation joint (240), be equipped with first annular groove (250) between bolt head (220) and the quick-operation joint (240), set up second annular groove (241) on the quick-operation joint (240), be equipped with in second annular groove (241) slip casting connector (242), slip casting (200) are for forming slip casting passageway (230) screw thread connection (140) and screw thread connection (210), a plurality of steel strands (111) are wound on the outer side of one end of the grouting pipe (110), the steel strands (111) uniformly and tightly surround the outer side of the grouting pipe (110) in a spiral shape, and a pressure control structure (300) is arranged in the grouting pipe (110);
the pressure control structure (300) comprises a spring (310), the other end of the spring (310) is fixedly connected with a piston (311), the piston (311) is movably connected in the grouting pipe (110), classification holes (312) are formed in two sides of the grouting pipe (110), and the classification holes (312) are communicated with the grouting pipe (110).
2. The grouting anchor cable with the pressure-controllable and pressure-yielding function according to claim 1, wherein a clamping piece (132) is arranged on the inner side of the anchor device (131), and the clamping piece (132) is fixedly installed on the anchor cable body (100).
3. The grouting anchor cable with the pressure-controllable and pressure-yielding function according to claim 1, wherein a grout stop plug (133) is arranged on the other side of the tray (130), and the grout stop plug (133) is fixedly installed on the anchor cable body (100).
4. The grouting anchor cable with the pressure-controllable and pressure-yielding function according to claim 1, wherein a plug (112) is arranged in the stirring grouting head (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111436642.2A CN114320409B (en) | 2021-11-25 | 2021-11-25 | Grouting anchor cable with pressure-controllable and pressure-yielding functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111436642.2A CN114320409B (en) | 2021-11-25 | 2021-11-25 | Grouting anchor cable with pressure-controllable and pressure-yielding functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114320409A CN114320409A (en) | 2022-04-12 |
| CN114320409B true CN114320409B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111436642.2A Active CN114320409B (en) | 2021-11-25 | 2021-11-25 | Grouting anchor cable with pressure-controllable and pressure-yielding functions |
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| CN114320409A (en) | 2022-04-12 |
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