CN114320409A - Controllable pressure and let slip casting anchor rope of pressure function - Google Patents
Controllable pressure and let slip casting anchor rope of pressure function Download PDFInfo
- Publication number
- CN114320409A CN114320409A CN202111436642.2A CN202111436642A CN114320409A CN 114320409 A CN114320409 A CN 114320409A CN 202111436642 A CN202111436642 A CN 202111436642A CN 114320409 A CN114320409 A CN 114320409A
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- Prior art keywords
- grouting
- anchor cable
- grouting pipe
- connector
- pressure
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- 238000007569 slipcasting Methods 0.000 title abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 239000011440 grout Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 239000011435 rock Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000002002 slurry Substances 0.000 description 6
- 238000005065 mining Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- 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 controllable pressure and let slip casting anchor rope of pressure function belongs to slip casting anchor rope technical field. The grouting anchor cable with the pressure control and yielding functions comprises an anchor cable body. The anchor cable comprises an anchor cable body and is characterized in that 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, the other end of the anchor cable body is in threaded connection with a grouting connector, a plurality of steel strands are wound on the outer side of one end of the grouting pipe in a spiral shape, the steel strands uniformly and tightly surround the grouting pipe in a spiral shape, a pressure control structure is arranged in the grouting pipe and comprises a spring, a piston is fixedly connected to the other end of the spring and movably connected into the grouting pipe, and grading holes are formed in two sides of the grouting pipe.
Description
Technical Field
The application relates to the technical field of grouting anchor cables, in particular to a grouting anchor cable with a pressure control and yielding function.
Background
The problem of soft rock roadway support in the mining field is always a big problem in the field, particularly the roadway support of weak and broken surrounding rocks is very difficult, and the conventional support mode cannot effectively control the surrounding rocks of the roadway.
The existing hollow grouting anchor cable has the advantages of high strength, large prestress, simplicity in processing, convenience in 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 appears in the deep part, the tunnel surrounding rock deforms greatly, so that the coal mine production requirements are difficult to meet, and the need for improving the existing anchor cable is urgently needed.
Disclosure of Invention
In order to make up for the defects, the application provides a grouting anchor cable with the pressure control and yielding functions, and aims to solve the problem of soft rock roadway support in the mining field, particularly the roadway support of weak and broken surrounding rocks is very difficult, and the conventional support mode cannot effectively control the surrounding rocks of the roadway.
The embodiment of the application provides a slip casting anchor rope of controllable pressure and let pressure function, including the anchor rope body.
The anchor rope is characterized in that a grouting pipe is arranged inside the anchor rope body, a stirring grouting head is arranged at one end of the grouting pipe, a tray is arranged at one end of the anchor rope body, an anchorage device is arranged on one side of the tray, a grouting connector is connected to the other end of the anchor rope body in a threaded mode, a plurality of steel strands are wound on the outer side of one end of the grouting pipe in a winding mode and are evenly and tightly wound around the outer side of the grouting pipe in a spiral mode, a pressure control structure is arranged in the grouting pipe and comprises a spring, a piston is fixedly connected to the other end of the spring, the piston is movably connected into the grouting pipe, and grading holes are formed in two sides of the grouting pipe.
In the implementation process, when slurry enters the grouting pipe by pressure provided by the grouting pump, a certain pressure is applied to the piston by utilizing the compression deformation principle of the spring, the pressure compresses the spring to deform and pushes the piston to move towards the tail part of the anchor cable, and the slurry in the grouting pipe flows out through the grading holes in the wall of the grouting pipe at the moment, so that grouting reinforcement on shallow surrounding rock is completed; when the grouting pressure is increased, the grout pushes the piston to move, the piston compression spring further deforms, the grout continuously moves forwards, and grouting reinforcement is carried out on deep surrounding rocks, so that graded grouting of the surrounding rocks can be realized by flexibly controlling the grouting pressure. When the surrounding rock receives great mining stress, the yielding spring in the main rod body can generate corresponding extrusion deformation in time, the anchor cable can still provide supporting force for the surrounding rock, resistance is achieved in yielding, and the grouting connector is convenient to install and good in sealing effect.
In a specific embodiment, a clamping piece is arranged on the inner side of the anchor device, and the clamping piece is fixedly arranged on the anchor cable body.
In the implementation process, the clamping piece is arranged to increase the sealing effect during grouting.
In a specific embodiment, the other side of the tray is provided with a grout stop plug, and the grout stop plug is fixedly mounted on the anchor cable body.
In the implementation process, the slurry stopping plug is arranged, so that the sealing effect can be increased, and slurry leakage is effectively prevented.
In a specific embodiment, a threaded section is arranged on the outer side of one end of the anchor cable body.
In the implementation process, the thread section is arranged, so that the thread installation and fixation are facilitated.
In a specific embodiment, a plug is installed in the stirring grouting head.
In the implementation process, one end of the grouting pipe can be plugged by arranging the plug.
In a concrete embodiment, 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 threaded connection head, be equipped with threaded connection groove in the threaded connection head, the bolt head other end is equipped with the quick-operation joint, the bolt head with be equipped with first annular groove between the quick-operation joint, the second annular groove has been seted up on the quick-operation joint, be equipped with the sealing washer in the second annular groove, the overall structure that the slip casting connector formed as an organic whole processing.
In the above-mentioned realization process, at first install the slip casting pipe in threaded connection recess of threaded connection head through threaded connection, then with the quick-operation joint and the slip casting high-pressure joint connection of slip casting head, wherein the sealing washer plays sealed effect, and first annular groove is convenient for carry out the block and connects, and then prevents that quick-operation joint from breaking away from, plays high-speed joint, sealed good, connect reliable effect.
In a specific embodiment, the threaded connector is in threaded connection with the threaded section, and the grouting pipe is communicated with the grouting channel.
In the implementation process, the grouting connector is connected with the anchor cable body conveniently, and grouting support is facilitated.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required 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 application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic cross-sectional structural view provided by an embodiment of the present application;
FIG. 2 is a side cross-sectional structural schematic view provided by an embodiment of the present application;
fig. 3 is a schematic structural diagram of a grouting connector according to an embodiment of the present disclosure;
fig. 4 is a schematic cross-sectional structure view of a grouting connector provided in an embodiment of the present application.
In the figure: 100-anchor cable body; 110-grouting pipe; 111-steel strand; 112-plug; 120-stirring grouting head; 130-a tray; 131-an anchorage device; 132-a clip; 133-a grout stop plug; 140-a threaded segment; 200-grouting connectors; 210-a grouting channel; 220-bolt head; 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-pressure control structure; 310-a spring; 311-a piston; 312-graded pores.
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.
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, the present application provides a grouting anchor cable with pressure control and yielding functions, which includes an anchor cable body 100.
Referring to fig. 1, 2, 3 and 4, a grouting pipe 110 is disposed inside 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 anchor 131 is disposed at one side of the tray 130, a grouting connector 200 is connected to the other end of the anchor cable body 100 through a screw thread, a plurality of steel strands 111 are wound outside one end of the grouting pipe 110, the steel strands 111 uniformly and tightly surround the grouting pipe 110 in a spiral shape, a pressure control structure 300 is disposed in the grouting pipe 110, the pressure control structure 300 includes a spring 310, a piston 311 is fixedly connected to the other end of the spring 310, the piston 311 is movably connected to the grouting pipe 110, and grading holes 312 are disposed at two sides of the grouting pipe 110.
In this embodiment, the clamping piece 132 is disposed inside the anchor 131, the clamping piece 132 is fixedly mounted on the anchor cable body 100, the sealing effect can be increased by disposing the clamping piece 132, the grout stop plug 133 is disposed on the other side of the tray 130, and the grout stop plug 133 is fixedly mounted on the anchor cable body 100, so that the sealing effect can be increased, and grout leakage can be effectively prevented.
In this document, a threaded section 140 is disposed on an outer side of one end of the anchor cable body 100, the threaded section 140 facilitates thread installation and fixation, 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.
When the grouting device is specifically arranged, a grouting channel 210 is formed in a grouting connector 200, the grouting connector 200 comprises a bolt head 220, a threaded connector 230 is arranged at one end of the bolt head 220, a threaded connection groove 231 is formed in the threaded connector 230, a quick connector 240 is arranged at the other end of the bolt head 220, a first annular groove 250 is formed between the bolt head 220 and the quick connector 240, a second annular groove 241 is formed in the quick connector 240, a sealing ring 242 is arranged in the second annular groove 241, and the grouting connector 200 is of an integrally processed integral structure The effect of reliable connection, threaded connection 230 and screw thread section 140 threaded connection, slip casting pipe 110 and slip casting passageway 210 intercommunication are convenient for be connected slip casting connector 200 with anchor rope body 100, are convenient for carry out the slip casting and support.
Specifically, the working principle of the grouting anchor cable with the pressure-controllable and yielding function is as follows: when slurry enters the grouting pipe 110 by providing pressure through a grouting pump, a certain pressure is applied to the piston 311 by utilizing the compression deformation principle of the spring 310, the pressure compresses the spring 310 to deform and pushes the piston 311 to move towards the tail part of the anchor cable, and the slurry in the grouting pipe 110 flows out through the grading holes 312 in the wall of the grouting pipe 110 at the moment, so that grouting reinforcement of shallow surrounding rock is completed; when grouting pressure is increased, grout pushes the piston 311 to move, the piston 311 compresses the spring 310 to further deform, the grout continuously moves forwards, and deep surrounding rock is grouted and reinforced, so that graded grouting of the surrounding rock can be realized by flexibly controlling grouting pressure. When the surrounding rock is subjected to large mining stress, the yielding spring 310 in the main rod body can generate corresponding extrusion deformation in time, the anchor cable can still provide supporting force for the surrounding rock, resistance in yielding is achieved, and the grouting connector 200 is convenient to install and good in sealing effect.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the 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 conceive of the changes or substitutions within the technical scope of the present application, and shall 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 (10)
1. A grouting anchor cable with controllable pressure and yielding functions is characterized by comprising
The anchor cable comprises an anchor cable body (100), wherein a grouting pipe (110) is arranged inside the anchor cable body (100), one end of the grouting pipe (110) is provided with a stirring grouting head (120), one end of the anchor cable body (100) is provided with a tray (130), one side of the tray (130) is provided with an anchorage device (131), the other end of the anchor cable body (100) is in threaded connection with a grouting connector (200), the outer side of one end of the grouting pipe (110) is wound with a plurality of steel strands (111), the plurality of 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), a piston (311) is fixedly connected to the other end of the spring (310), the piston (311) is movably connected into the grouting pipe (110), grading holes (312) are formed in two sides of the grouting pipe (110), and the grading holes (312) are communicated with the grouting pipe (110).
2. The grouting anchor cable with controllable pressure and yielding function as claimed in claim 1, wherein a clamping piece (132) is arranged inside the anchor (131), and the clamping piece (132) is fixedly mounted on the anchor cable body (100).
3. The grouting anchor cable with controllable pressure and yielding function as claimed in claim 1, wherein a grout stop plug (133) is arranged at the other side of the tray (130), and the grout stop plug (133) is fixedly mounted on the anchor cable body (100).
4. The grouting anchor cable with controllable pressure and yielding function as claimed in claim 1, wherein a threaded section (140) is arranged on the outer side of one end of the anchor cable body (100).
5. The grouting anchor cable with controllable pressure and yielding function as claimed in claim 1, wherein a plug (112) is installed in the stirring grouting head (120).
6. The grouting anchor cable with the controllable pressure and yielding functions according to claim 4, wherein a grouting channel (210) is formed in the grouting connector (200), the grouting connector (200) comprises a bolt head (220), one end of the bolt head (220) is provided with a threaded connector (230), a threaded connection groove (231) is formed in the threaded connector (230), and the other end of the bolt head (220) is provided with a quick connector (240).
7. The grouting anchor cable with controllable pressure and yielding function according to claim 6, wherein a first annular groove (250) is formed between the bolt head (220) and the quick coupling (240), and a second annular groove (241) is formed on the quick coupling (240).
8. The grouting anchor cable with controllable pressure and yielding function as claimed in claim 7, wherein a sealing ring (242) is arranged in the second annular groove (241).
9. The grouting anchor cable with the pressure controlling and yielding functions as claimed in claim 1, wherein the grouting connector (200) is an integrally processed integral structure.
10. The grouting anchor cable with controllable pressure and yielding function as claimed in claim 6, wherein the threaded connector (230) is in threaded connection with the threaded section (140), and the grouting pipe (110) is communicated with the grouting channel (210).
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 true CN114320409A (en) | 2022-04-12 |
| CN114320409B 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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| CN (1) | CN114320409B (en) |
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| CN114320409B (en) | 2024-02-06 |
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