Cage core capsule anchor rod integrated grouting device, cage core capsule anchor rod and construction method

Abstract

The application relates to the technical field of basic rock anchor construction, and provides a cage core bag anchor rod integrated grouting device, a cage core bag anchor rod and a construction method.The integrated grouting device comprises a bag, a grouting pipe and an integrated exhaust and grouting assembly.The integrated exhaust and grouting assembly comprises: a grouting pipe; a cover plate used for closing or opening a grouting opening; an elastic damping piece connected with the grouting pipe and the cover plate and used for providing damping force for the cover plate to open the grouting opening; an exhaust pipe provided with an exhaust opening at the top end and closed at the bottom end; and a buoyancy ball movably arranged in the exhaust pipe and used for closing or opening the exhaust opening.The density of the buoyancy ball is greater than the density of water and smaller than the density of cement slurry injected into the bag through the grouting pipe.Compared with traditional secondary grouting, only one grouting operation is needed, the process is simple, the construction is convenient, the construction difficulty is reduced, especially the self-compaction of the grouting in the bag is realized, and the grouting effect in the bag and the anchor rod construction quality are improved.

Description

Technical Field

[0001] This invention belongs to the field of basic rock anchor construction technology, specifically relating to an integrated grouting device for cage-core anchor bolts, cage-core anchor bolts, and construction methods. Background Technology

[0002] Currently, domestic public building projects, especially those with relatively small superstructure loads and large burial depths, have high requirements for structural anti-buoyancy design. They generally employ concrete cast-in-place piles or anti-buoyancy anchors. However, in areas with favorable geological conditions, especially in rock foundations, concrete cast-in-place piles are costly due to high material consumption and construction costs. Therefore, anchors are increasingly used in foundation anti-buoyancy design. With the continuous improvement of anchor construction technology, pocket anchors have experienced rapid development in recent years. Their excellent corrosion resistance, high reliability, and high pull-out resistance are widely recognized, and manufacturing costs have decreased significantly, gradually showing a trend of completely replacing ordinary anchors. Based on the pocket structure, pocket anchors can be divided into two categories: core-filled pocket anchors and through-hole pocket anchors.

[0003] Existing cage-core anchor bolts consist of a rod body, a reinforcing cage mounted on the rod body, and a cage-like structure that encloses the reinforcing cage within the rod body. During construction, a two-stage grouting process is generally employed. This involves first grouting inside the cage-core anchor bolt into the anchor hole, and then grouting the anchor hole itself. This two-stage grouting process involves numerous steps and is complex to operate. In particular, it cannot guarantee the effectiveness of the grouting inside the cage, thus affecting the overall quality of the anchor bolt construction. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and to propose an integrated grouting device, a cage-core anchor bolt, and a construction method for cage-core anchor bolts, which solves the problems of complex grouting procedures and difficulty in ensuring the grouting effect inside the cage-core anchor bolt.

[0005] In a first aspect, the present invention provides an integrated grouting device for cage-core anchor bolts, comprising a cage, a grouting pipe communicating with the cage, and an integrated venting and grouting assembly disposed at the top of the cage; the integrated venting and grouting assembly comprises:

[0006] The discharge pipe includes a discharge port communicating with the top of the bag and a discharge port away from the bag;

[0007] A cover plate is provided on the slurry outlet pipe to close or open the slurry outlet.

[0008] An elastic damping element connects the slurry outlet pipe and the cover plate, and is used to provide damping force for the cover plate to open the slurry outlet.

[0009] An exhaust pipe is connected to the side end between the slurry inlet and the slurry outlet of the slurry outlet pipe. An exhaust port is provided at the top of the exhaust pipe, and the bottom end of the exhaust pipe is closed.

[0010] A buoyancy ball is movably disposed inside the vent pipe to close or open the vent. The density of the buoyancy ball is greater than that of water and less than that of the cement slurry injected into the bag through the grouting pipe.

[0011] Furthermore, the elastic damping element includes a spring, which connects the slurry outlet pipe and the cover plate. When the cover plate closes the slurry outlet, the spring is in a stretched state, and the tensile force of the spring is greater than the buoyancy of the cement slurry in the bag on the buoyancy ball.

[0012] A spring is used to connect the cover plate and the slurry outlet pipe, providing damping force for opening the cover plate and also enabling the cover plate to automatically reset, so as to automatically close the slurry outlet of the slurry outlet pipe.

[0013] Furthermore, the elastic damping element also includes a limiting element, which is disposed inside the slurry outlet pipe. One end of the spring is connected to the limiting element, and the other end of the spring is connected to the cover plate.

[0014] Connecting the spring to the slurry outlet pipe via a limiting component restricts the position of the spring's bottom end. Additionally, in some technical solutions, the limiting component is movably connected to the slurry outlet pipe to adjust their relative height, thereby adjusting the height of the spring's bottom end and adjusting the spring force applied to the cover plate. The movable connection between the limiting component and the slurry outlet pipe can be achieved using a threaded connection.

[0015] Furthermore, the cover plate is rotatably connected to the slurry outlet pipe. One side of the cover plate is rotatably connected to the slurry outlet side of the slurry outlet pipe via a rotating shaft pin, or a hinge or other hinged device can be used to achieve the rotatable connection between the cover plate and the slurry outlet pipe. This restricts the opening angle and direction of the cover plate.

[0016] Furthermore, the exhaust pipe is disposed on one side of the slurry outlet pipe, and the integrated exhaust and slurry outlet assembly also includes a connecting pipe that connects the exhaust pipe and the slurry outlet pipe.

[0017] Furthermore, the bottom end of the exhaust pipe is lower than the connecting pipe. By setting the bottom end of the exhaust pipe to be lower than the connecting pipe, the buoyancy ball is positioned at the bottom end of the exhaust pipe before it floats upwards. This prevents air, moisture, and cement slurry that does not meet the specific gravity requirements from entering the exhaust pipe through the connecting pipe and being discharged through the exhaust pipe.

[0018] Furthermore, the top end of the exhaust pipe is provided with a tubular constriction portion, the diameter of which is smaller than the diameter of the buoyancy ball.

[0019] By setting a constriction at the top of the exhaust pipe, the travel of the buoyancy ball can be limited, thus better sealing the exhaust port of the exhaust pipe.

[0020] Furthermore, the constricting portion is detachably connected to the exhaust pipe, and the connecting pipe is detachably connected to the exhaust pipe or the slurry outlet pipe; the slurry inlet of the slurry outlet pipe is detachably connected to the bag.

[0021] The aforementioned detachable connection structure facilitates the assembly of the integrated grouting device for the core-filled bladder anchor bolts and its installation on the anchor bolts. In some technical solutions, multiple integrated venting and grout discharge components are installed at the top of the bladder. The even distribution of these components at the top of the bladder significantly improves construction efficiency.

[0022] Secondly, a cage-core anchor bolt is proposed, comprising an integrated grouting device for cage-core anchor bolts as described in any of the above technical solutions, and a rod body, one end of which is inserted into the bladder of the integrated grouting device for cage-core anchor bolts, and a reinforcing cage is provided on the rod body located in the bladder.

[0023] In some technical solutions, there are multiple integrated grouting devices for cage core anchor bolts, and these multiple integrated grouting devices for cage core anchor bolts are arranged sequentially along the length of the bolt.

[0024] Thirdly, a construction method for the aforementioned cage-core anchor bolt is proposed, including:

[0025] The cage core anchor bolt equipped with the integrated grouting device for cage core anchor bolts is hoisted into the anchor hole;

[0026] Cement slurry is continuously injected into the bag through the grouting pipe; the injected cement slurry is used to displace the air, moisture and cement slurry that do not meet the specific gravity requirements in the bag through the exhaust port of the exhaust pipe until the buoyancy ball that rises with the injected cement slurry seals the exhaust port.

[0027] Cement grout continues to be injected into the bag through the grouting pipe until the cement grout in the bag pushes open the cover plate to open the grout outlet;

[0028] Cement grout continues to be injected into the bag through the grouting pipe until the anchor hole is filled with cement grout overflowing from the grout outlet, at which point grouting stops.

[0029] The beneficial effects of this invention include: by setting an integrated venting and grouting component at the top of the grouting bag, cement grout that meets the requirements is continuously injected into the grouting bag through the grouting pipe to displace air, moisture, and cement grout that does not meet the specific gravity requirements. After the grouting bag is initially filled with cement grout, a buoyancy ball rises with the cement grout to seal the vent. Continued injection of cement grout applies pressure to the grouting bag. Since both the vent and grouting outlets are closed at this time, the cement grout injected into the grouting bag self-compacts, effectively improving the grouting effect. As the grouting pressure continues to rise until it exceeds the tension of the spring, the cover plate opens the grouting outlet, allowing the cement grout in the grouting bag to overflow into the anchor hole, thus achieving anchor hole grouting. Compared to traditional two-stage grouting, the entire grouting process only requires one grouting operation, simplifying the process, simplifying construction, and reducing construction difficulty. In particular, the self-compacting grouting within the grouting bag improves the grouting effect and the quality of anchor bolt construction. Attached Figure Description

[0030] Figure 1 This is a front view schematic diagram of the integrated grouting device for cage core and anchor bolts of the present invention.

[0031] Figure 2 for Figure 1 Enlarged cross-sectional view of the integrated slurry discharge and exhaust assembly.

[0032] Figure 3 for Figure 2 A schematic diagram of the exploded structure of the central exhaust pipe.

[0033] Figure 4 for Figure 2 A schematic diagram of the structure of the central connecting pipe.

[0034] Figure 5 for Figure 2 A top-down view.

[0035] In the diagram, 1-bag; 2-grouting pipe; 3-cover plate; 4-spring; 5-limiting component; 6-grout outlet pipe; 7-closing part; 8-vent pipe; 9-buoyancy ball; 10-connecting pipe; A-integrated vent and grout outlet assembly. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1 , 2 The integrated grouting device for cage-core anchor bolts shown in Figure 5 includes a bladder 1, a grouting pipe 2 communicating with the bladder 1, and an integrated venting and grouting assembly A disposed at the top of the bladder 1. In some embodiments, the bladder 1 of the integrated grouting device for cage-core anchor bolts is an existing bladder for cage-core anchor bolts.

[0038] like Figure 2 As shown, the integrated venting and slurry discharge assembly A includes: slurry discharge pipe 6, cover plate 3, elastic damping component, venting pipe 8, buoyancy ball 9, and connecting pipe 10.

[0039] The grout outlet pipe 6 is vertically installed and includes an inlet port connected to the top of the bag 1 and an outlet port away from the bag 1. The bottom end of the grout outlet pipe 6 is the inlet port, and the top end is the outlet port. The inlet port is where the cement grout from the bag 1 enters the grout outlet pipe 6, and the outlet port is where the cement grout from the bag 1 overflows from the grout outlet pipe 6. The inlet port of the grout outlet pipe 6 is detachably connected to the top of the bag 1, for example, by a threaded connection. The top of the bag 1 has a threaded hole, and the bottom end of the grout outlet pipe 6 has a threaded section that can be screwed into the threaded hole at the top of the bag 1, thus enabling the grout outlet pipe 6 to be installed at the top of the bag 1.

[0040] The pipe body of the slurry outlet pipe 6 is preferably a round pipe.

[0041] In some embodiments, the top end of the bag 1 is provided with multiple threaded holes, which are evenly distributed. Each threaded hole is connected to a slurry outlet pipe 6 of an integrated venting and slurry outlet component A, thereby greatly improving the efficiency of venting, draining, and discharging slurry. Of course, too many integrated venting and slurry outlet components A are not conducive to achieving self-compactment of the cement slurry during the grouting process inside the bag 1. Therefore, it is preferable that the top end of the bag 1 is provided with 1-3 integrated venting and slurry outlet components A.

[0042] Cover plate 3 is installed on slurry outlet pipe 6 to close or open the slurry outlet. For example... Figure 2 As shown, the cover plate 3 is disposed at the top of the slurry outlet pipe 6. In some embodiments, the cover plate 3 may also be disposed inside the slurry outlet pipe 6. It is sufficient that the cover plate 3 can achieve both closing and opening of the slurry outlet.

[0043] In some embodiments, the cover plate 3 is rotatably connected to the slurry outlet pipe 6. The rotatable connection can be varied; for example, in this embodiment, the cover plate 3 is horizontally positioned, or the surface of the cover plate 3 is positioned along the radial direction of the slurry outlet pipe 6. One side of the cover plate 3 is rotatably connected to one side of the slurry outlet at the top of the slurry outlet pipe 6 via a rotating shaft pin. The rotating shaft pin can also be replaced by a hinge or other hinged device or structure. This allows the cover plate 3 to rotate around the rotating shaft pin, such as... Figure 2 The cover plate 3 shown is in the open state.

[0044] The elastic damping element connects the slurry outlet pipe 6 and the cover plate 3, and provides damping force for the cover plate 3 to open the slurry outlet. Under the action of the elastic damping element, the cover plate 3 is normally closed. If it is necessary to open the cover plate 3, work needs to be done to overcome the damping force or elastic force of the elastic damping element.

[0045] The elastic damping element in this embodiment includes a spring 4. The spring 4 connects the grout outlet pipe 6 and the cover plate 3. When the cover plate 3 closes the grout outlet, the spring 4 is in a stretched state, and the tensile force of the spring 4 is greater than the buoyancy of the cement grout inside the bladder 1 on the buoyancy ball 9. To facilitate the installation of the spring 4, a lifting ring is provided on the inner surface of the cover plate 3, facing the surface of the bladder 1 when it is in a closed state, and a hook that cooperates with the lifting ring is provided at the top of the spring 4. Under the downward tensile force of the spring 4, the cover plate 3 is in a closed state, that is, the grout outlet is in a closed state. If it is necessary to open the grout outlet, or to open the cover plate 3, an upward force needs to be applied to the cover plate 3, and this force is greater than the downward tensile force of the spring 4. The purpose of the spring 4's tensile force being greater than the buoyancy of the cement grout inside the bladder 1 on the buoyancy ball 9 is that during the initial grouting of the bladder 1, the buoyancy ball 9 floats with the rising cement grout. During this process, the cover plate 3 should be in a closed state, therefore the tensile force of the spring 4 must be at least greater than the buoyancy of the buoyancy ball 9.

[0046] To facilitate the installation of spring 4, the elastic damping component also includes a limiting component 5. The limiting component 5 is disposed inside the slurry outlet pipe 6. One end of spring 4 is connected to the limiting component 5, and the other end of spring 4 is connected to the cover plate 3. The limiting component 5 is preferably an annular steel sheet, welded to the inner wall of the slurry outlet pipe 6 to maintain horizontality. The limiting component 5 is also welded and fixed to the bottom end of spring 4. Before welding and fixing the limiting component 5, spring 4 is first fixed to the limiting component 5, and spring 4 is connected to the cover plate 3. The limiting component 5 is then placed inside the slurry outlet pipe 6. Adjusting the position of the limiting component 5 inside the slurry outlet pipe 6 also adjusts the tensile force applied by spring 4 to cover plate 3. After adjusting the tensile force to a suitable value, the limiting component 5 is welded and fixed to the inner wall of the slurry outlet pipe 6. To facilitate the adjustment of the tension of the spring 4, in some embodiments, the limiting member 5 includes an externally threaded tube, and the inner wall of the slurry outlet pipe 6 is provided with an internally threaded section. The externally threaded tube is threadedly connected to the slurry outlet pipe 6 through the internally threaded section. By rotating the externally threaded tube, its depth in the slurry outlet pipe 6 can be adjusted. The limiting member 5 also includes a rotatable ring that is rotatably fitted at the top end of the externally threaded tube. For example, the rotatable ring is a slewing bearing. One rotating surface of the slewing bearing is fixedly connected to the top end of the externally threaded tube, and the other rotating surface of the slewing bearing is fixedly connected to the spring 4. The rotation axis of the slewing bearing coincides with the axis of the externally threaded tube and the slurry outlet pipe 6, so that the spring 4 will not twist when the externally threaded tube rotates.

[0047] The exhaust pipe 8 is connected to the side end of the slurry inlet and outlet of the slurry outlet pipe 6. The top end of the exhaust pipe 8 is provided with an exhaust port, and the bottom end of the exhaust pipe 8 is closed.

[0048] In this embodiment, in conjunction with the appendix Figure 1 , 4As shown, the exhaust pipe 8 is located on one side of the slurry outlet pipe 6, and the connecting pipe 10 connects the exhaust pipe 8 and the slurry outlet pipe 6. Specifically, the exhaust pipe 8 is located parallel to the slurry outlet pipe 6 on one side of the slurry outlet pipe 6, and the two maintain a lateral distance. The middle part of the exhaust pipe 8 and the middle part of the slurry outlet pipe 6 are each provided with a through hole. The two ends of the connecting pipe 10 are connected to the through holes provided in the middle parts of the exhaust pipe 8 and the slurry outlet pipe 6, respectively, and the connection method adopts a detachable structure, such as a threaded connection, to facilitate assembly.

[0049] like Figure 2 As shown, the connecting pipe 10, the vent pipe 8, and the grout outlet pipe 6 form an H-shaped component, with a U-shaped space above and below the corresponding connecting pipe 10 of the H-shaped component. In some embodiments, a plurality of integrated venting and grout outlet components A are provided at the top of the bag 1, and the plurality of integrated venting and grout outlet components A are evenly spaced along the circumference of the bag 1. Correspondingly, the integrated grouting device for the cage core bag anchor also includes ring reinforcement, which is clamped in the U-shaped space above and / or below the plurality of integrated venting and grout outlet components A, connecting the plurality of integrated venting and grout outlet components A into an overall annular structure. After grouting in the anchor hole, the overall annular structure including the ring reinforcement and the plurality of integrated venting and grout outlet components A is fixed in the solidified cement grout, improving the anchoring quality of the cage core bag anchor.

[0050] like Figure 3 As shown, the top end of the exhaust pipe 8 is provided with a tubular constriction portion 7, the diameter of which is smaller than the diameter of the buoyancy ball 9. In some embodiments, the bottom end of the exhaust pipe 8 is closed, and the top end of the exhaust pipe 8 is open and threadedly connected to the tubular constriction portion 7, which may be referred to as a constriction tube, funnel tube, or frustum tube. The bottom diameter of the constriction portion 7 is larger than its top diameter, achieving a gradual narrowing of the diameter from bottom to top. The top diameter of the exhaust pipe 8 is greater than or equal to the diameter of the buoyancy ball 9, while the top diameter of the constriction portion 7 is smaller than the diameter of the buoyancy ball 9. The constriction portion 7 and the exhaust pipe 8 are detachably connected by a threaded connection. By separating the constriction portion 7 and the exhaust pipe 8, the buoyancy ball 9 can be placed inside the exhaust pipe 8, and then the constriction portion 7 can be tightened onto the top end of the exhaust pipe 8, preventing the buoyancy ball 9 from escaping the space enclosed by the constriction portion 7 and the exhaust pipe 8. Of course, the length of the exhaust pipe 8 must be greater than the diameter of the buoyancy ball 9, so that it can float at least within the exhaust pipe 8. Preferably, the bottom end of the exhaust pipe 8 is lower than the connecting pipe 10. When the buoyancy ball 9 is not under buoyancy, it sinks to the bottom of the exhaust pipe 8. At this time, the top end of the buoyancy ball 9 is lower than the connecting pipe 10, so that the air in the bag 1 can quickly enter the exhaust pipe 8 through the connecting pipe 10 and be discharged from the exhaust port at the top end of the exhaust pipe 8, or the top end of the constriction 7. The air is not blocked by the buoyancy ball 9, and the exhaust efficiency is high.

[0051] The buoyancy ball 9 is movably installed inside the vent pipe 8 to close or open the vent. The density of the buoyancy ball 9 is greater than that of water but less than that of the cement slurry injected into the bladder 1 through the grouting pipe 2. The buoyancy ball 9 is made of rubber or other materials.

[0052] Based on the same concept, the present invention also proposes a cage core anchor bolt, including the integrated grouting device for cage core anchor bolts of any of the above embodiments, and also includes a rod body, one end of which is inserted into the bladder 1 of the integrated grouting device for cage core anchor bolts, and a reinforcing cage is provided on the rod body located in the bladder 1.

[0053] In some embodiments, there are multiple integrated grouting devices for cage core anchor bolts, and the multiple integrated grouting devices for cage core anchor bolts are arranged sequentially along the length direction of the bolt.

[0054] Based on the same concept, the present invention also proposes a construction method for the above-mentioned cage-core anchor bolt, comprising:

[0055] The cage core anchor rod, equipped with an integrated grouting device for cage core anchor rods, is hoisted into the anchor hole; the anchor hole is pre-drilled.

[0056] Cement grout is continuously injected into the bladder 1 through the grouting pipe 2. The injected cement grout replaces the air, moisture, and cement grout that does not meet the specific gravity requirements in the bladder 1 through the exhaust port of the exhaust pipe 8. When the cement grout injected into the bladder 1 meets the specific gravity requirements and fills the exhaust pipe 8, the buoyancy ball 9 floats up with the cement grout until the buoyancy ball 9, which rises with the injected cement grout, seals the exhaust port. This process completes the initial grouting of the bladder 1.

[0057] Cement grout continues to be injected into the bladder 1 through the grouting pipe 2. Because the vent is sealed by the buoyancy ball 9, the pressure inside the bladder 1 continues to increase. The cement grout inside squeezes against each other, achieving self-compactment, and continues to squeeze outwards, filling the bladder 1 with self-compacted cement grout. Until the pressure exerted by the cement grout inside the bladder 1 exceeds the sum of the tension force of the spring 4 and the external pressure of the bladder 1, the cement grout pushes open the cover plate 3, opening the grout outlet. This process completes the filling of the bladder 1 and the self-compactment of the cement grout inside.

[0058] Continue injecting cement grout into the bag 1 through the grouting pipe 2 until the cement grout overflowing from the outlet of the bag 1 fills the anchor hole, then stop grouting.

[0059] Although the term "initial grouting" appears in the above description, it does not mean that the grouting process of the construction method in this embodiment involves secondary or multiple grouting. The initial grouting of the bag 1, the filling of the bag 1 and the self-compacting of the cement grout inside, and the grouting of the anchor holes are carried out continuously and can be regarded as a grouting process completed in one step. Compared with the existing method of grouting inside and outside the bag in two separate steps, the construction efficiency is improved. In particular, by using elastic damping components and cover plate 3 to close the grout outlet and buoyancy ball 9 to close the vent, the self-compacting of the grout inside the bag 1 is achieved, ensuring the grouting quality. Moreover, there is no need for grouting quality monitoring, which simplifies the construction process and shortens the construction period.

[0060] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A cage core capsule anchor rod integrated grouting device, characterized in that, It includes a sluice bag, a grouting pipe communicating with the sluice bag, and an integrated venting and grouting assembly disposed at the top of the sluice bag; The integrated exhaust and slurry discharge assembly includes: The discharge pipe includes a discharge port communicating with the top of the bag and a discharge port away from the bag; A cover plate is provided on the slurry outlet pipe to close or open the slurry outlet. An elastic damping element connects the slurry outlet pipe and the cover plate, and is used to provide damping force for the cover plate to open the slurry outlet. An exhaust pipe is connected to the side end between the slurry inlet and the slurry outlet of the slurry outlet pipe. An exhaust port is provided at the top of the exhaust pipe, and the bottom end of the exhaust pipe is closed. A buoyancy ball is movably disposed inside the exhaust pipe to close or open the exhaust port; the density of the buoyancy ball is greater than the density of water and less than the density of the cement slurry injected into the bag through the grouting pipe. The elastic damping element includes a spring, which connects the slurry outlet pipe and the cover plate. When the cover plate closes the slurry outlet, the spring is in a stretched state, and the tensile force of the spring is greater than the buoyancy of the cement slurry in the bag on the buoyancy ball. The elastic damping element also includes a limiting element, which is disposed inside the slurry outlet pipe. One end of the spring is connected to the limiting element, and the other end of the spring is connected to the cover plate. The exhaust pipe is disposed on one side of the slurry outlet pipe, and the integrated exhaust and slurry outlet assembly further includes a connecting pipe that connects the exhaust pipe and the slurry outlet pipe; The exhaust pipe has a tubular constriction at its top end, and the diameter of the constriction is smaller than the diameter of the buoyancy ball.

2. The integrated grouting device of the cage core and anchor rod according to claim 1, characterized in that, The cover plate is rotatably connected to the slurry outlet pipe.

3. The integrated grouting device of the cage core and anchor rod according to claim 1, characterized in that, The bottom of the exhaust pipe is lower than the connecting pipe.

4. The integrated grouting device of the cage core and anchor rod according to claim 1, characterized in that, The constricting part is detachably connected to the exhaust pipe, and the connecting pipe is detachably connected to the exhaust pipe or the slurry outlet pipe; the slurry inlet of the slurry outlet pipe is detachably connected to the bag.

5. A caged core capsule anchor rod characterized by, The integrated grouting device for cage core and anchor bolts as described in any one of claims 1-4 further includes a rod body, one end of which is inserted into the bladder of the integrated grouting device for cage core and anchor bolts, and a reinforcing cage is provided on the rod body located inside the bladder.

6. A construction method for a cage-core anchor bolt as described in claim 5, characterized in that, include: The cage core anchor bolt equipped with the integrated grouting device for cage core anchor bolts is hoisted into the anchor hole; Cement slurry is continuously injected into the bag through the grouting pipe; the injected cement slurry is used to displace the air, moisture and cement slurry that do not meet the specific gravity requirements in the bag through the exhaust port of the exhaust pipe until the buoyancy ball that rises with the injected cement slurry seals the exhaust port. Cement grout continues to be injected into the bag through the grouting pipe until the cement grout in the bag pushes open the cover plate to open the grout outlet; Cement grout continues to be injected into the bag through the grouting pipe until the anchor hole is filled with cement grout overflowing from the grout outlet, at which point grouting stops.

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