Subgrade camber deformation excavation backfilling suppression device and suppression method thereof

Abstract

The application provides a roadbed up-arching deformation excavation backfilling inhibition device and method, relates to the technical field of roadbed up-arching inhibition anchor rods, and comprises a grouting reinforcement part, a hole collapse detection part is installed on the grouting reinforcement part; the hole collapse detection part is used for detecting hole collapse defects of the grouting hole wall; a sealing control part is slidably sleeved on the grouting reinforcement part; the sealing control part is used for detecting water accumulation in the grouting hole; a grouting positioning part is installed in the hole collapse detection part; when a staff member lowers the grouting reinforcement part into the grouting hole, the hole collapse detection part is used for automatically detecting the inner wall defects of the grouting hole, and the sealing control part is used for automatically controlling the through hole on the sealing diffusion pipe when defects occur on the grouting hole wall, so that direct grouting operation is not possible; the problems that the current roadbed up-arching deformation excavation backfilling inhibition anchor rod is not convenient for detecting the inner wall defects of the grouting hole, manual grouting operation is not good in standardization, and it is not convenient to remove water accumulation in the grouting hole during grouting reinforcement are solved.

Description

Technical Field

[0001] This invention relates to the field of roadbed arch suppression anchor technology, and more particularly to a roadbed arch deformation excavation and backfill suppression device and suppression method. Background Technology

[0002] In actual roadbed construction, when the roadbed soil has high rheological properties, it is prone to arching deformation, which directly affects the safety and lifespan of the roadbed. When the roadbed soil has high rheological properties, it is usually necessary to excavate and backfill to replace the soil, and then carry out grouting reinforcement work in conjunction with roadbed reinforcement anchors to ensure the stability of the roadbed. However, when the current roadbed arching deformation suppression anchors are actually inserted into the grouting holes, it is not convenient to detect defects in the inner wall of the grouting hole, especially for deeper grouting holes. When the hole wall collapses or falls off, direct grouting can easily cause uneven distribution of grouting pressure, affecting the grouting quality. The standardization of manual grouting operation is not good, and it is also not convenient to restrict the removal of water in the grouting hole during grouting reinforcement. Especially for deep grouting anchoring work in some collapsible soils, direct grouting operation can easily cause the grout to be excessively diluted by water, resulting in an out-of-control water-cement ratio. Summary of the Invention

[0003] This disclosure relates to a device and method for suppressing roadbed arching deformation excavation and backfilling, in order to solve the problems of current roadbed arching deformation excavation and backfilling suppression anchors being inconvenient for detecting defects in the inner wall of grouting holes, poor standardization of manual grouting operations, and inconvenience for restricting the removal of water accumulation in grouting holes during grouting reinforcement.

[0004] In a first aspect, this disclosure provides a device for suppressing arch deformation excavation and backfilling on a roadbed, specifically including a grouting reinforcement component. A hole collapse detection component is installed on the grouting reinforcement component; the hole collapse detection component is used to detect hole collapse defects in the grouting hole wall; a sealing control component is slidably sleeved on the grouting reinforcement component; the sealing control component is used to detect water accumulation in the grouting hole; a grouting positioning component is installed inside the hole collapse detection component; the grouting positioning component is used to position the sealing control component; a sealing component is installed on the grouting reinforcement component; the grouting reinforcement component includes: a grouting anchor rod and a diffuser pipe, the grouting anchor rod being threaded; a diffuser pipe is fixedly installed at the front end of the grouting anchor rod, and the diffuser pipe has four rows of through holes.

[0005] In at least some embodiments, the grouting reinforcement further includes: a push spring and a reset torsion spring, wherein the push spring is sleeved on the diffuser tube and one end of the push spring is fixedly connected to the diffuser tube; the reset torsion spring is sleeved on the diffuser tube and one end of the reset torsion spring is fixedly connected to the diffuser tube; and the push spring is located outside the reset torsion spring.

[0006] In at least some embodiments, the hole collapse detection component includes: a detection mounting post, a positioning protrusion, and a front end tube; the detection mounting post is fixedly mounted on a diffuser tube; the positioning protrusion is fixedly mounted on the detection mounting post; the front end tube is fixedly mounted on the detection mounting post, and the front end tube is threaded; the front end tube is used to install an anchor head.

[0007] In at least some embodiments, the hole collapse detection component further includes: a detection swing rod, a pressing block, and a spring sheet. A ring of detection swing rods is rotatably mounted on the detection mounting column, and a pressing block is fixedly mounted on each ring of detection swing rods, and the pressing block has an inclined structure. A spring sheet is mounted on each ring of the detection swing rods, and the end of the spring sheet is fixedly mounted on the detection mounting column. The spring sheet has a V-shaped structure. The detection swing rod is used to contact the inner wall of the grouting hole. The elastic force of the spring sheet is greater than the sum of the elastic force of the push spring and the torsion force of the return torsion spring.

[0008] In at least some embodiments, the sealing control component includes: a sealing sleeve and a positioning groove, wherein the sealing sleeve is fitted onto the diffuser tube; the sealing sleeve has four rows of through holes, and the four rows of through holes on the sealing sleeve are aligned with the four rows of through holes on the diffuser tube; the sealing sleeve has a positioning groove; the positioning protrusion is inserted into the positioning groove; the other end of the push spring abuts against the sealing sleeve, and the other end of the reset torsion spring is fixedly connected to the sealing sleeve; the inclined surface of the extrusion block is pressed against the edge of the sealing sleeve.

[0009] In at least some embodiments, the sealing control component further includes: a foam float, wherein the foam float is fixedly sleeved on the outside of the sealing sleeve, and the foam float has four rows of through holes; the four rows of through holes on the foam float are respectively aligned with the four rows of through holes on the sealing sleeve.

[0010] In at least some embodiments, the grouting positioning component includes: a grouting connecting column, a piston column, a positioning column, and a compression spring. The grouting connecting column is a hexagonal column. The grouting connecting column is slidably inserted into the detection mounting column. A piston column is fixedly installed on the grouting connecting column, and the piston column is sleeved inside the diffuser tube. A positioning column is slidably inserted into the piston column, and the top end of the positioning column has a conical structure. The positioning column is aligned with the through hole on the diffuser tube. A compression spring is sleeved inside the piston column, and one end of the compression spring is fixedly connected to the positioning column, and the other end of the compression spring is fixedly connected to the inside of the piston column.

[0011] In at least some embodiments, the grouting positioning component further includes: a grouting spring, which is sleeved on the grouting connecting column; one end of the grouting spring is connected to the piston column, and the other end of the grouting spring is connected to the detection mounting column.

[0012] In at least some embodiments, the sealing element includes: a sealing plate, a nut, and a rubber sleeve, wherein the sealing plate is fitted onto the grouting anchor rod; the sealing plate has four through holes; the nut is threaded onto the grouting anchor rod; the rubber sleeve is fitted onto the grouting anchor rod; the outer side of the rubber sleeve has a beveled structure; and the nut is used to fasten the sealing plate.

[0013] Methods to suppress arching deformation of roadbed through excavation and backfilling:

[0014] 1) After inserting the hand-held grouting reinforcement into the grouting hole, insert the rubber sleeve into the grouting hole, and then tighten the nut to make the sealing plate fit tightly against the ground;

[0015] 2) Connect the grouting anchor to the outlet pipe of the grouting pump, then start the grouting pump to grout. The grout will be discharged from the four rows of through holes on the diffuser pipe and fill the grouting hole for pressurized grouting.

[0016] This invention provides a device and method for suppressing arch deformation excavation and backfilling on roadbeds, which has the following beneficial effects:

[0017] This invention employs a hole collapse detection device. When workers lower the grouting reinforcement to the grouting hole, it automatically detects defects on the inner wall of the grouting hole, such as hole collapse or partial soil loss on the hole wall. In conjunction with a sealing control device, it can automatically seal the grout outlet channel when defects appear on the hole wall, preventing normal grouting. This forces construction personnel to ensure the hole wall is intact before proceeding with construction, maintaining a balanced grout pressure on the hole wall during grouting pressurization. This avoids uneven grouting pressure caused by localized hole collapse, which would affect the uniform diffusion of the grout and increase the standardization of grouting operations by workers.

[0018] In addition, the use of foam floats can further improve the grouting reinforcement quality of this structure. They can be used to check the water accumulation inside the grouting hole, avoiding direct grouting operation when there is a lot of water accumulation, which would cause abnormal water-cement ratio of the cement slurry in the grouting hole. At the same time, the foam floats, together with the sealing sleeve, can also automatically seal the through holes on the diffuser pipe, perform sealing and restriction work, and ensure that the staff can clean up the water accumulation in a timely manner.

[0019] In addition, sealing components can be used to seal the top of the grouting hole to ensure grouting pressure. Grouting positioning components can be used to automatically position the sealing sleeve during grouting, ensuring that the sealing sleeve does not shift during grouting. This prevents the foam float from floating due to the buoyancy of the cement slurry during grouting, which could cause the sealing sleeve to abnormally seal the diffuser. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0021] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0022] In the attached diagram:

[0023] Figure 1 A schematic diagram of the overall structure of the roadbed arch deformation excavation and backfill suppression device of this application is shown;

[0024] Figure 2 A schematic diagram of the rear structure of the roadbed arch deformation excavation and backfill suppression device of this application is shown;

[0025] Figure 3 A cross-sectional view of the internal structure of the grouting anchor bolt of this application is shown;

[0026] Figure 4 This application shows Figure 2 Enlarged view of the structure of region A in the middle;

[0027] Figure 5 A schematic diagram of the overall structure of the grouting reinforcement component of this application is shown;

[0028] Figure 6 A schematic diagram of the overall structure of the hole collapse detection component of this application is shown;

[0029] Figure 7 This application shows Figure 3 Enlarged view of the structure of the middle F region;

[0030] Figure 8 A schematic diagram of the overall structure of the enclosure control component of this application is shown;

[0031] Figure 9 This application shows Figure 3 Enlarged view of the structure of the G region;

[0032] Figure 10 A schematic diagram of the overall structure of the grouting positioning component of this application is shown.

[0033] List of reference numerals

[0034] 1. Grouting reinforcement components; 101. Grouting anchor; 102. Diffuser; 103. Push spring; 104. Reset torsion spring; 2. Hole collapse detection components; 201. Detection mounting column; 2011. Positioning protrusion; 202. Front end tube; 203. Detection swing rod; 2031. Extrusion block; 204. Spring; 3. Sealing control components; 301. Sealing sleeve; 3011. Positioning groove; 302. Foam float; 4. Grouting positioning components; 401. Grouting connecting column; 4011. Piston column; 402. Positioning column; 403. Compression spring; 404. Grouting spring; 5. Sealing components; 501. Sealing plate; 502. Nut; 503. Rubber sleeve. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figures 1 to 10 :

[0037] This invention proposes a roadbed arch deformation excavation and backfill suppression device, including a grouting reinforcement component 1, on which a hole collapse detection component 2 is installed; the hole collapse detection component 2 is used to detect hole collapse defects in the grouting hole wall; a sealing control component 3 is slidably sleeved on the grouting reinforcement component 1; the sealing control component 3 is used to detect water accumulation in the grouting hole; a grouting positioning component 4 is installed inside the hole collapse detection component 2; the grouting positioning component 4 is used to position the sealing control component 3; a sealing component 5 is installed on the grouting reinforcement component 1; the grouting reinforcement component 1 includes: a grouting anchor rod 101 and a diffuser pipe 102, the grouting anchor rod 101 is provided with threads; the diffuser pipe 102 is fixedly installed at the front end of the grouting anchor rod 101, and the diffuser pipe 102 is provided with four rows of through holes.

[0038] In this embodiment, the grouting reinforcement component 1 further includes: a push spring 103 and a reset torsion spring 104. The push spring 103 is sleeved on the diffuser tube 102, and one end of the push spring 103 is fixedly connected to the diffuser tube 102. The reset torsion spring 104 is sleeved on the diffuser tube 102, and one end of the reset torsion spring 104 is fixedly connected to the diffuser tube 102. The push spring 103 is located outside the reset torsion spring 104. The hole collapse detection component 2 includes: a detection mounting post 201, a positioning protrusion 2011, and a front end tube 202. The detection mounting post 201 is fixedly mounted on the diffuser tube 102. The positioning protrusion 2011 is fixedly mounted on the detection mounting post 201. The front end tube is fixedly mounted on the detection mounting post 201. 202, and the front end tube 202 is threaded; the front end tube 202 is used to install the anchor head; the hole collapse detection component 2 also includes: a detection swing rod 203, a pressing block 2031 and a spring 204, a detection swing rod 203 is rotatably mounted on the detection mounting column 201, and a pressing block 2031 is fixedly mounted on the detection swing rod 203, and the pressing block 2031 has a bevel structure; a spring 204 is mounted on the detection swing rod 203, and the end of the spring 204 is fixedly mounted on the detection mounting column 201; the spring 204 has a V-shaped structure; the detection swing rod 203 is used to contact the inner wall of the grouting hole; the elastic force of the spring 204 is greater than the elastic force of the push spring 103 and the reset torque. The sum of the torques of spring 104; the sealing control component 3 includes: a sealing sleeve 301 and a positioning groove 3011, the sealing sleeve 301 is sleeved on the diffuser tube 102; the sealing sleeve 301 is provided with four rows of through holes, and the four rows of through holes on the sealing sleeve 301 are aligned with the four rows of through holes on the diffuser tube 102; the sealing sleeve 301 is provided with a positioning groove 3011; the positioning protrusion 2011 is inserted into the positioning groove 3011; the other end of the push spring 103 abuts against the sealing sleeve 301, and the other end of the reset torsion spring 104 is fixedly connected to the sealing sleeve 301; the inclined surface of the extrusion block 2031 is pressed against the edge of the sealing sleeve 301; the grouting reinforcement component 1 can realize the grouting reinforcement of the roadbed. This design effectively suppresses arching deformation on the roadbed and is more suitable for excavation and backfill suppression work. Simultaneously, the collapse detection component 2 automatically detects defects in the inner wall of the grouting hole when workers lower the grouting reinforcement component 1 to the grouting hole, such as collapse or partial soil loss in the hole wall. Combined with the sealing control component 3, it can automatically control the sealing of the through-hole on the diffuser pipe 102 when defects appear in the grouting hole wall, preventing direct grouting operations. It requires timely backfilling and compaction of filler materials such as sand before re-drilling. This limits the actual grouting operation by ensuring the integrity of the grouting hole wall and maintaining balanced grout pressure during grouting pressurization. It also prevents uneven grouting pressure caused by localized collapse, which affects the uniform diffusion of the grout. The structure is simple to control.As the grouting reinforcement 1 is lowered, if there is a serious collapse of the grouting hole in some areas, causing an abnormal increase in the hole diameter, the detection swing rod 203 will no longer be blocked. At this time, the detection swing rod 203 or the local detection swing rod 203 will expand. Under the elastic compression of the spring sheet 204, the detection swing rod 203 will rotate. At this time, the extrusion block 2031 will rotate and extrude the sealing sleeve 301. At this time, the inclined extrusion block 2031 will extrude the sealing sleeve 301 and move it upward, compressing the push spring 103. At this time, the positioning groove 3011 will move upward and separate from the positioning protrusion 2011. Under the drive of the reset torsion spring 104, the sealing sleeve 301 will rotate. At this time, the through hole on the sealing sleeve 301 and the through hole on the diffuser tube 102 will be misaligned and closed.

[0039] In this embodiment, the sealing control component 3 further includes a foam float 302. The foam float 302 is fixedly sleeved on the outside of the sealing sleeve 301, and four rows of through holes are provided on the foam float 302. The four rows of through holes on the foam float 302 are respectively aligned with the four rows of through holes provided on the sealing sleeve 301. The use of the foam float 302 can further improve the grouting reinforcement quality of this structure. It can be used to check the water accumulation inside the grouting hole, avoiding direct grouting operation when there is a lot of water accumulation, which may cause abnormal water-cement ratio of the cement slurry in the grouting hole. At the same time, the foam float 302, in conjunction with the sealing sleeve 301, can also automatically seal the through holes on the diffuser 102 to perform sealing and restriction work, ensuring that the staff needs to clean up the accumulated water in time. The structure control is simple and efficient, especially for grouting work in deeper grouting holes, ensuring the strength of the grouting filler. The mechanical structure is simple and reliable.

[0040] In Example 2, based on Example 1, the grouting positioning component 4 includes: a grouting connecting column 401, a piston column 4011, a positioning column 402, and a compression spring 403. The grouting connecting column 401 is a hexagonal column; the grouting connecting column 401 is slidably inserted into the detection mounting column 201; the piston column 4011 is fixedly installed on the grouting connecting column 401, and the piston column 4011 is sleeved inside the diffuser tube 102; the positioning column 402 is slidably inserted into the piston column 4011, and the top end of the positioning column 402 has a conical structure; the positioning column 402 is aligned with the through hole on the diffuser tube 102; the piston column... A compression spring 403 is fitted inside the piston column 4011, with one end of the compression spring 403 fixedly connected to the positioning column 402 and the other end of the compression spring 403 fixedly connected to the inside of the piston column 4011; the grouting positioning component 4 also includes: a grouting spring 404, which is fitted on the grouting connecting column 401; one end of the grouting spring 404 is connected to the piston column 4011 and the other end of the grouting spring 404 is connected to the detection mounting column 201; the sealing component 5 includes: a sealing plate 501, a nut 502 and a rubber sleeve 503, with the sealing plate 501 fitted on the grouting anchor rod 101; The sealing plate 501 has four through holes; the nut 502 is threaded onto the grouting anchor rod 101; the rubber sleeve 503 is fitted onto the grouting anchor rod 101; the outer side of the rubber sleeve 503 has a beveled structure; the nut 502 is used to fasten the sealing plate 501; the sealing component 5 can be used to seal the top of the grouting hole to ensure grouting pressure; the grouting positioning component 4 can be used to automatically position the sealing sleeve 301 during grouting, ensuring that the sealing sleeve 301 does not shift during grouting, and preventing the buoyancy of the cement slurry from causing the foam float 302 to float and the sealing sleeve 301 to float. 01 Abnormally closed diffuser 102. This structure ensures structural rationality, while the grouting positioning component 4 does not affect the normal detection of water accumulation in the grouting hole by the closed sleeve 301 before grouting. Under the high-pressure impact of cement grout, the piston column 4011 will be impacted and moved backward. At this time, the positioning column 402 moves backward synchronously. Under the elastic push of the compression spring 403, the positioning column 402 will directly insert into the through hole on the closed sleeve 301 and diffuser 102. Even if the grout level rises and submerges the foam float 302, the closed sleeve 301 will not be displaced, ensuring smooth grouting.

[0041] Methods to suppress arching deformation of roadbed through excavation and backfilling:

[0042] 1) After inserting the hand-held grouting reinforcement 1 into the grouting hole, insert the rubber sleeve 503 into the grouting hole, and then tighten the nut 502 to make the sealing plate 501 fit tightly against the ground;

[0043] 2) Connect the grouting anchor 101 to the outlet pipe of the grouting pump, and then start the grouting pump to grout. The grout is discharged from the four rows of through holes on the diffuser pipe 102 and fills the grouting hole for pressurized grouting.

[0044] The working principle of this embodiment: The worker holds the grouting reinforcement 1 and manually gathers the detection swing rod 203. Then, the positioning groove 3011 on the closed sleeve 301 is inserted into the positioning protrusion 2011 for positioning. At this time, the reset torsion spring 104 is in the tensioned state. The anchor head is manually threaded onto the front end tube 202 and inserted into the grouting hole. At this time, the detection swing rod 203 is also inserted into the grouting hole. Under the standard diameter of the grouting hole, the detection swing rod 203 will be squeezed, keeping the detection swing rod 203 in a position. In the retracted state, as the grouting reinforcement 1 is lowered, if there is a severe collapse of the grouting hole causing an abnormal increase in hole diameter, the detection swing rod 203 will no longer be blocked. At this time, a full rotation of the detection swing rod 203 or a localized portion of the detection swing rod 203 will expand. Under the elastic compression of the spring sheet 204, the detection swing rod 203 will rotate. At this time, the compression block 2031 will rotate and compress the sealing sleeve 301. The inclined compression block 2031 will then compress the sealing sleeve 301 upwards, compressing the push spring 10. 3. At this point, the positioning groove 3011 will move upward and separate from the positioning protrusion 2011. Driven by the reset torsion spring 104, the sealing sleeve 301 will rotate. At this time, the through hole on the sealing sleeve 301 and the through hole on the diffuser 102 will be misaligned. Even if the workers connect the grouting anchor 101 to the grouting pump, the grouting work cannot be completed. It is necessary to remove the grouting anchor 101, clean up the residual grout, backfill the grouting hole with sand, compact it, and then re-drill the hole. If the inner wall of the grouting hole remains within the accuracy range, then the extrusion block 2031... It will not compress the closed sleeve 301; when the grouting reinforcement 1 is lowered, if there is water in the grouting hole, the foam float 302 will float on the water surface under the buoyancy of the water. At this time, as the detection installation column 201 is lowered, the positioning protrusion 2011 will be dislodged from the positioning groove 3011. At this time, the push spring 103 is compressed, and under the elastic torque of the reset torsion spring 104, the closed sleeve 301 is driven to rotate, so that the through hole on the closed sleeve 301 and the through hole on the diffuser 102 are misaligned to perform the sealing work.

[0045] When no water accumulates in the grouting hole, the through holes on the sealing sleeve 301 and the diffuser pipe 102 are aligned. The grouting anchor rod 101 can be manually rotated and lifted, causing the anchor head on the front end pipe 202 to expand and tightly adhere to the grouting hole, similar to the existing technology. Then, the rubber sleeve 503 is inserted into the grouting hole, and the nut 502 is tightened. The sealing plate 501 is then pressed down to adhere tightly to the ground. Anchor rods can be installed in the four through holes on the sealing plate 501 for further reinforcement. At this point, the grouting anchor rod 101 can be connected to the grouting hole normally. After the grout pump is used, grouting is performed. The grout is discharged from the through hole on the closed sleeve 301. At this time, under the high pressure impact of the cement grout, the piston column 4011 will be impacted and moved backward, compressing the grouting spring 404. At this time, the positioning column 402 moves backward synchronously, aligning with the through hole on the closed sleeve 301 and the diffuser 102. At this time, under the elastic push of the compression spring 403, the positioning column 402 will directly insert into the through hole on the closed sleeve 301 and the diffuser 102 for positioning. At this time, the closed sleeve 301 will no longer be displaced.

[0046] The following points should be noted in this article:

[0047] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0048] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0049] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A device for suppressing arch deformation excavation and backfilling on roadbed, comprising a grouting reinforcement component (1), wherein a hole collapse detection component (2) is installed on the grouting reinforcement component (1); characterized in that: The hole collapse detection component (2) is used to detect hole collapse defects in the grouting hole wall; a sealing control component (3) is slidably sleeved on the grouting reinforcement component (1); the sealing control component (3) is used to detect water accumulation in the grouting hole; The hole collapse detection component (2) is equipped with a grouting positioning component (4); the grouting positioning component (4) is used to position the sealing control component (3); the grouting reinforcement component (1) is equipped with a sealing component (5). The grouting reinforcement component (1) includes: a grouting anchor rod (101) and a diffuser pipe (102). The grouting anchor rod (101) is threaded. The diffuser pipe (102) is fixedly installed at the front end of the grouting anchor rod (101), and the diffuser pipe (102) is provided with four rows of through holes.

2. The roadbed arch deformation excavation and backfill suppression device according to claim 1, characterized in that, The grouting reinforcement component (1) further includes: a push spring (103) and a reset torsion spring (104). The push spring (103) is sleeved on the diffuser tube (102), and one end of the push spring (103) is fixedly connected to the diffuser tube (102). The reset torsion spring (104) is sleeved on the diffuser tube (102), and one end of the reset torsion spring (104) is fixedly connected to the diffuser tube (102).

3. The roadbed arch deformation excavation and backfill suppression device according to claim 2, characterized in that, The hole collapse detection component (2) includes: a detection mounting post (201), a positioning protrusion (2011), and a front end tube (202). The detection mounting post (201) is fixedly mounted on the diffuser tube (102). The positioning protrusion (2011) is fixedly mounted on the detection mounting post (201). The front end tube (202) is fixedly mounted on the detection mounting post (201).

4. The roadbed arch deformation excavation and backfill suppression device according to claim 3, characterized in that, The hole collapse detection component (2) further includes: a detection swing rod (203), an extrusion block (2031), and a spring (204). A ring of detection swing rods (203) is rotatably mounted on the detection mounting column (201), and an extrusion block (2031) is fixedly mounted on the ring of detection swing rods (203), and the extrusion block (2031) has a sloping structure. A spring (204) is mounted on the ring of detection swing rods (203), and the end of the spring (204) is fixedly mounted on the detection mounting column (201). The spring (204) has a V-shaped structure. The detection swing rod (203) is used to contact the inner wall of the grouting hole.

5. The roadbed arch deformation excavation and backfill suppression device according to claim 4, characterized in that, The sealing control component (3) includes: a sealing sleeve (301) and a positioning groove (3011). The sealing sleeve (301) is sleeved on the diffuser tube (102). The sealing sleeve (301) has four rows of through holes. The sealing sleeve (301) has a positioning groove (3011). The positioning protrusion (2011) is inserted into the positioning groove (3011). The other end of the push spring (103) abuts against the sealing sleeve (301), and the other end of the reset torsion spring (104) is fixedly connected to the sealing sleeve (301). The inclined surface of the extrusion block (2031) is pressed against the edge of the sealing sleeve (301).

6. The roadbed arch deformation excavation and backfill suppression device according to claim 5, characterized in that, The closed control component (3) further includes a foam float (302), on which the foam float (302) is fixedly sleeved on the outside of the closed sleeve (301), and four rows of through holes are provided on the foam float (302).

7. The roadbed arch deformation excavation and backfill suppression device according to claim 3, characterized in that, The grouting positioning component (4) includes: a grouting connecting column (401), a piston column (4011), a positioning column (402), and a compression spring (403); the grouting connecting column (401) is slidably inserted into the detection mounting column (201); the piston column (4011) is fixedly installed on the grouting connecting column (401), and the piston column (4011) is sleeved inside the diffuser tube (102); the positioning column (402) is slidably inserted into the piston column (4011); the positioning column (402) is aligned with the through hole on the diffuser tube (102); the compression spring (403) is sleeved inside the piston column (4011), and one end of the compression spring (403) is fixedly connected to the positioning column (402), and the other end of the compression spring (403) is fixedly connected to the inside of the piston column (4011).

8. The roadbed arch deformation excavation and backfill suppression device according to claim 7, characterized in that, The grouting positioning component (4) further includes: a grouting spring (404), which is sleeved on the grouting connecting column (401); one end of the grouting spring (404) is connected to the piston column (4011), and the other end of the grouting spring (404) is connected to the detection mounting column (201).

9. The roadbed arch deformation excavation and backfill suppression device according to claim 1, characterized in that, The sealing component (5) includes: a sealing plate (501), a nut (502) and a rubber sleeve (503). The sealing plate (501) is fitted onto the grouting anchor rod (101). The sealing plate (501) has four through holes. The nut (502) is threaded onto the grouting anchor rod (101). The rubber sleeve (503) is fitted onto the grouting anchor rod (101).

10. A method for suppressing excavation and backfilling deformation of roadbed arching, using the excavation and backfilling suppression device for roadbed arching deformation as described in any one of claims 1-9, characterized in that, Includes the following steps: 1) After inserting the hand-held grouting reinforcement (1) into the grouting hole, insert the rubber sleeve (503) into the grouting hole, and then tighten the nut (502) so that the sealing plate (501) is in close contact with the ground; 2) Connect the grouting anchor (101) to the outlet pipe of the grouting pump, and then start the grouting pump to grout. The grout is discharged from the four rows of through holes on the diffuser pipe (102) and fills the grouting hole for pressurized grouting.

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