Mountain area tunnel concealed side type dredging structure based on calcification crystal dissolving agent and dredging method thereof

Abstract

The invention belongs to the technical field of buried pipelines, and discloses a mountain tunnel buried side type dredging structure based on a calcification crystal dissolving agent and a dredging method thereof.The mountain tunnel buried side type dredging structure comprises a crystal removing agent box, the front side of the bottom end of the crystal removing agent box is fixedly communicated with a high-pressure water pipe, and a water pump is installed in the crystal removing agent box; the crystal removal agent box is filled with a calcification crystal dissolving agent, the end, away from the crystal removal agent box, of the high-pressure water pipe fixedly communicates with a guide box, a guide ball head is movably clamped to the bottom end of the guide box and rotates relative to the guide box, and the guide ball head communicates with the interior of the guide box; the bottom end of the guide ball head fixedly communicates with a pressurizing power assembly, the bottom end of the pressurizing power assembly is movably connected with an injection box in a clamped mode, injection grooves are axially formed in the outer side face of the injection box at equal intervals, the middle of the bottom end of the injection box fixedly communicates with a limiting pipe, and a limiting pipe is fixedly installed on the outer side face of the bottom end of the injection box. Auxiliary dredging assemblies are movably clamped to the outer side face of the limiting pipe at equal intervals in the axial direction.

Description

Technical Field

[0001] The present invention belongs to the technical field of buried pipelines, and specifically relates to a buried side-type dredging structure and a dredging method for mountain tunnels based on a calcification crystal dissolving agent. Background Technique

[0002] The buried side-type drainage structure of a tunnel is a drainage system hidden inside the tunnel sidewall or lining, mainly used for efficiently discharging seepage water from surrounding rocks, reducing water pressure, and ensuring the safety of the tunnel structure. However, due to the influence of factors such as design level, construction quality, quality of materials, geological conditions, and operating environment, a large number of tunnels are facing the problem of crystal blockage in the drainage system, which triggers other diseases in the tunnel and affects vehicle passage and structural safety. There is an urgent need for a rapid dredging method to deal with this problem.

[0003] Currently, the main dredging method is to use mechanical chiseling followed by manual cleaning of crystals. This treatment method not only destroys the integrity of the existing tunnel structure but also has slow treatment efficiency and high cost. Therefore, how to solve the problem of crystal blockage in buried pipes is crucial.

[0004] When dredging buried pipes, even if manual chiseling is used for dredging and cleaning, high-pressure water flushing is still used for cleaning the pipes. However, when dealing with sections with a large blockage area, this cleaning method cannot achieve efficient cleaning and is difficult to dredge hard crystals. There is an urgent need for improvement. Summary of the Invention

[0005] The purpose of the present invention is to provide a buried side-type dredging structure and a dredging method for mountain tunnels based on a calcification crystal dissolving agent to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A buried side-type dredging structure for mountain tunnels based on a calcification crystal dissolving agent, including a crystal remover box. The front side of the bottom end of the crystal remover box is fixedly connected and communicated with a high-pressure water pipe. A water pump is installed inside the crystal remover box. The inside of the crystal remover box is filled with a calcification crystal dissolving agent. The end of the high-pressure water pipe away from the crystal remover box is fixedly connected and communicated with a guiding box. A guiding ball head is movably clamped at the bottom end of the guiding box. The guiding ball head rotates relative to the guiding box, and the guiding ball head is communicated with the inside of the guiding box. The bottom end of the guiding ball head is fixedly connected and communicated with a boosting power assembly. The bottom end of the boosting power assembly is movably clamped with a spraying box. The outer side of the spraying box is axially equally spaced with spraying grooves. The middle of the bottom end of the spraying box is fixedly connected and communicated with a limiting pipe. The outer side of the bottom end of the spraying box is fixedly installed with a limiting pipe. The outer side of the limiting pipe is axially equally spaced with auxiliary dredging components movably clamped.

[0007] Before clearing the pipeline, it is necessary to add an inspection well at the location to be cleared and install the device inside the inspection well. At the same time, the clearing end of the device, that is, the limit tube and the drill bit, must be inserted into the pipeline to be cleared. The calcification crystal dissolving agent is proportioned as needed and dissolved in water and injected into the decrystallizer box. At the same time, the water pump inside the decrystallizer box is turned on to pressurize it. The pressurized solution can be discharged through the high-pressure water pipe and enter the interior of the guide box. The angle of the guide ball head can be adjusted according to the curvature of the pipeline so that the bottom end of the device can adapt to the curvature of the pipeline, completing the preparation before clearing.

[0008] As a further technical solution of the present invention, the boost power assembly includes a boost box, one side of the boost box is fixedly connected to a liquid injection pipe, and one end of the liquid injection pipe away from the boost box is fixedly connected to the bottom end of the guide ball head.

[0009] As a further technical solution of the present invention, a main shaft is movably installed in the middle of the boost box, and a boost turbine located inside the boost box is fixedly sleeved on the outer side surface of the main shaft. The bottom end of the main shaft is connected to the middle of the top of the injection box, and the bottom end of the boost box is movably connected to the injection box, and the injection box rotates relative to the boost box.

[0010] When the high-pressure mixed liquid is discharged through the guide box, it can enter the interior of the guide ball head, and be introduced into the interior of the injection pipe through the guide ball head, and be introduced into the interior of the boost box through the injection pipe, and finally be discharged through the bottom end of the boost box to enter the interior of the injection box. At the same time, the mixed liquid entering the boost box can drive the boost turbine to rotate and drive the main shaft to rotate. At this time, the injection box at the bottom rotates relative to the boost power assembly, and the mixed liquid is further pressurized.

[0011] As a further technical solution of the present invention, the internal movable sleeve of the injection box is provided with a piston plate, the bottom end of the piston plate is fixedly connected to a limiting plate, the bottom end of the limiting plate is fixedly connected to a piston rod, and the bottom end of the piston rod passes through the bottom end of the limiting tube.

[0012] When the high-pressure mixed liquid enters the interior of the injection box, pressure can be applied to the piston plate inside the injection box. At this time, the limit plate at the bottom moves downward, driving the piston rod at the bottom to move downward, and the limit spring can be compressed. When the limit spring is compressed to the limit position, the piston plate drops to the lowest point, that is, it drops to the bottom of the injection slot. At this time, the high-pressure mixed liquid can be discharged through the injection slot and sprayed out through the rotation of the injection box, so that it contacts the crystal and dissolves the crystal, completing the initial dredging process.

[0013] By using a calcified crystal dissolving agent as a crystal removal agent to replace the traditional high-pressure water impact, the crystal is dissolved chemically, and at the same time, the pressure of the mixed liquid is used to realize the automatic rotation of the spraying box, achieving rotary spraying, ensuring that the crystal can be evenly contacted with the mixed liquid, improving the dissolution rate of the crystal, avoiding the use of traditional excavation methods, not only not damaging the tunnel, but also improving the dredging efficiency.

[0014] As a further technical solution of the present invention, a limiting spring located inside the limiting tube is movably sleeved on the outer side of the piston rod. The upper and lower ends of the limiting spring are respectively connected to the bottom end of the limiting plate and the bottom end of the inner cavity of the limiting tube. When the limiting spring is in the extreme compression state, the piston plate is at the lowest point and is located below the spraying groove.

[0015] As a further technical solution of the present invention, the bottom end of the piston rod is fixedly connected to a movable plate located inside the limiting tube. The middle of the bottom end of the movable plate is fixedly connected to an extension rod. The bottom end of the extension rod is fixedly connected to a drill bit located below the limiting tube. The auxiliary dredging components are axially and equally spaced and installed at the bottom end of the movable plate.

[0016] When the piston plate descends to the lowest point, at this time the piston rod also descends to the lowest point, simultaneously driving the movable plate and the extension rod at the bottom end to move downward, and finally driving the drill bit to descend to the lowest point position. At this time, the drill bit can dredge the crystal at the bottom end. At the same time, the rotation of the spraying box can synchronously drive the drill bit at the bottom end to rotate, and the crystal at the bottom end is dredged by the rotation of the drill bit, completing the auxiliary dredging process of the crystal.

[0017] By utilizing the pressure when the crystal removal agent is output and at the same time using the power of its flow, the drill bit automatically descends and the automatic rotation of the drill bit is realized. Through the mechanical drilling method in cooperation with the chemical solvent, the crystal is further pulverized and dredged. The whole process can be completed simultaneously with chemical dissolution. By using the mechanical plus chemical method to improve the pulverization efficiency of the crystal, thereby shortening the dredging time and improving the overall dredging efficiency of the pipeline.

[0018] As a further technical solution of the present invention, the auxiliary dredging components include first fixed seats. The first fixed seats are axially and equally spaced and installed at positions close to the outer side of the bottom end of the movable plate. One end of each first fixed seat away from the movable plate is movably connected to a connecting rod through a rotating shaft. One end of each second fixed seat away from the first fixed seat is movably connected to a second fixed seat through a rotating shaft.

[0019] As a further technical solution of the present invention, linkage frames are fixedly installed at the ends of the second fixed seats away from the connecting rods, and the linkage frames are located inside the limiting tubes. One end of the linkage frame away from the second fixed seat penetrates through one side of the limiting tube and is fixedly connected with a dredging blade. When the movable plate is at the lowest point, the distance between the dredging blade and the limiting tube is at the maximum value.

[0020] When the movable plate descends to the lowest point, the connecting rod deflects obliquely downward at this time and exerts a thrust on the second fixed seat. At this time, the second fixed seat displaces in the direction away from the movable plate, and at the same time exerts a thrust on the linkage frame. At this time, the dredging blade displaces in the direction away from the limiting tube until the distance between the dredging blade and the limiting tube is the maximum value. At this time, the dredging blade can be fully unfolded, and the rotation of the injection box drives the circumferential rotation of the dredging blade, thereby dredging the inner side surface of the pipeline.

[0021] By further utilizing the pressure of the crystal remover, through the input of the crystal remover, when the drill bit descends, the simultaneous outward expansion of multiple dredging blades can be realized. When the device drills and crushes crystals, the crystals on the inner wall of the pipeline can be synchronously crushed. Through all-round mechanical crushing and chemical solvents, the rapid dredging of the crystals inside the pipeline is realized, and the dredging efficiency is significantly improved.

[0022] A dredging method for a buried side dredging structure of a mountain tunnel based on a calcified crystal dissolving agent includes the following steps:

[0023] S1: Before dredging, inspection wells are added at the drain pipes, the limiting tubes and the drill bits are inserted into the drain pipes. At the same time, the calcified crystal dissolving agent is injected into the crystal remover tank and mixed with clean water. At the same time, the internal water pump is turned on, and the mixed liquid is injected into the guiding box through the high-pressure water pipe and injected into the pressurizing power assembly through the guiding ball head;

[0024] S2: At this time, the mixed liquid is discharged from the bottom end of the pressurizing tank to the injection box at the bottom end, and the mixed liquid will push the pressurizing turbine to rotate and complete pressurization. At this time, the injection box at the bottom end rotates accordingly, driving the circumferential rotation of the injection grooves, and the mixed liquid rotates and sprays out through the injection grooves, dissolving the crystals with chemical reagents to complete the preliminary dredging;

[0025] S3: At the same time, when the mixed liquid enters the injection box, it pushes the piston plate to displace downward, and the limiting plate and the piston rod move downward synchronously, driving the movable plate to move downward, and finally driving the extension rod and the drill bit to move downward, and further dredging the crystals inside the pipeline through the rotation of the drill bit;

[0026] S4: When the movable plate moves downward, the connecting rod deflects toward the outer side and drives the linkage frame to move toward the outer side. At this time, the dredging blade moves away from the limit pipe to complete the expansion. With the rotation of the injection box, the dredging blade rotates circumferentially to assist in dredging the side wall of the pipeline, completing the final dredging process.

[0027] The beneficial effects of the present invention are as follows:

[0028] (1) The present invention utilizes a calcification crystal dissolving agent as a crystal removal agent to replace the traditional high-pressure water shock, dissolves the crystals by chemical methods, and utilizes the pressure of the mixed liquid to realize automatic rotation of the spray box, thereby realizing rotary spraying, ensuring that the crystals can be evenly contacted with the mixed liquid, thereby increasing the dissolution rate of the crystals and avoiding the use of traditional excavation methods. This not only does not cause damage to the tunnel, but also improves the dredging efficiency.

[0029] (2) The present invention utilizes the pressure of the decrystallizing agent during its output and the power of its flow to make the drill bit automatically descend and rotate. The crystals are further crushed and cleared by mechanical drilling in combination with chemical solvents. The entire process can be completed simultaneously with chemical dissolution. The mechanical and chemical methods are used to improve the crystal crushing efficiency, thereby shortening the clearing time and improving the overall clearing efficiency of the pipeline.

[0030] (3) The present invention further utilizes the pressure of the decrystallizing agent. Through the input of the decrystallizing agent, the drill bit can be lowered and multiple dredging blades can be expanded simultaneously. This allows the device to drill and crush crystals while simultaneously crushing the crystals on the inner wall of the pipe. Through all-round mechanical crushing and chemical solvents, the crystals inside the pipe can be quickly dredged, significantly improving the dredging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a cross-sectional schematic diagram of the structure of the decrystallizer box and the guide box of the present invention;

[0033] Figure 3 It is a schematic diagram of the state of the present invention under which the decrystallizing agent box and the guide box structure are hidden;

[0034] Figure 4 It is a cross-sectional schematic diagram of the internal structure of the supercharged power assembly of the present invention;

[0035] Figure 5 It is a cross-sectional schematic diagram of the internal structure of the injection box of the present invention;

[0036] Figure 6 It is a cross-sectional schematic diagram of the internal structure of the injection box and the limiting tube of the present invention;

[0037] Figure 7 This is a schematic diagram of the cooperation between the movable plate and the auxiliary dredging component structure of the present invention;

[0038] Figure 8 This is a separate schematic diagram of the structure of the auxiliary dredging component of the present invention;

[0039] Figure 9 This is a schematic diagram of the technical indicators of the calcification crystal dissolving agent of the present invention.

[0040] In the figure: 1. Crystal removal agent tank; 2. High-pressure water pipe; 3. Guide box; 4. Guide ball head; 5. Boosting power component; 501. Boosting tank; 502. Boosting turbine; 503. Main shaft; 504. Liquid injection pipe; 6. Injection box; 7. Injection groove; 8. Limit pipe; 9. Piston plate; 10. Limit plate; 11. Piston rod; 12. Limit spring; 13. Movable plate; 14. Extension rod; 15. Drill bit; 16. Auxiliary dredging component; 161. First fixing seat; 162. Second fixing seat; 163. Link; 164. Linkage frame; 165. Dredging blade; 17. Limit pipe. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] As Figures 1 to 9 shown, in the embodiment of the present invention, a mountain tunnel buried side-type dredging structure based on a calcification crystal dissolving agent includes a crystal removal agent tank 1. The front side of the bottom end of the crystal removal agent tank 1 is fixedly connected and communicated with a high-pressure water pipe 2. A water pump is installed inside the crystal removal agent tank 1. The inside of the crystal removal agent tank 1 is filled with a calcification crystal dissolving agent. One end of the high-pressure water pipe 2 far from the crystal removal agent tank 1 is fixedly connected and communicated with a guide box 3. The bottom end of the guide box 3 is movably clamped with a guide ball head 4. The guide ball head 4 rotates relative to the guide box 3. The guide ball head 4 is communicated with the inside of the guide box 3. The bottom end of the guide ball head 4 is fixedly connected and communicated with a boosting power component 5. The bottom end of the boosting power component 5 is movably clamped with an injection box 6. The outer side of the injection box 6 is axially equidistantly provided with injection grooves 7. The middle part of the bottom end of the injection box 6 is fixedly connected and communicated with a limit pipe 8. The outer side of the bottom end of the injection box 6 is fixedly installed with a limit pipe 17. The outer side of the limit pipe 17 is axially equidistantly movably clamped with an auxiliary dredging component 16.

[0043] Before dredging the pipeline, it is necessary to add an inspection well at the position to be dredged, install the device inside the inspection well, and at the same time, insert the dredging end of the device, that is, the limit pipe 17 and the drill bit 15, into the pipeline to be dredged. According to the need, prepare the calcification crystal dissolving agent, dissolve it in water, inject it into the inside of the crystal removal agent tank 1, and at the same time, turn on the water pump inside the crystal removal agent tank 1 to pressurize it. The pressurized solution can be discharged through the high-pressure water pipe 2 and enter the inside of the guide box 3. The angle of the guide ball head 4 can be adjusted according to the bending of the pipeline, so that the bottom end of the device adapts to the bending degree of the pipeline, and the preparation before dredging is completed.

[0044] As Figure 1 and Figure 3 and Figure 4 and Figure 5 As shown in the figure, the pressurization power assembly 5 includes a pressurization tank 501. One side of the pressurization tank 501 is fixedly communicated with a liquid injection pipe 504. The end of the liquid injection pipe 504 away from the pressurization tank 501 is fixedly communicated with the bottom end of the guide ball head 4. A main shaft 503 is movably installed in the middle of the pressurization tank 501. A pressurization turbine 502 located inside the pressurization tank 501 is fixedly sleeved on the outer side of the main shaft 503. The bottom end of the main shaft 503 is connected to the middle of the top end of the injection tank 6. There is a movable clamping connection between the bottom end of the pressurization tank 501 and the injection tank 6, and the injection tank 6 rotates relative to the pressurization tank 501.

[0045] When the high-pressure mixed liquid is exported through the guide box 3, it can enter the inside of the guide ball head 4, be introduced into the inside of the liquid injection pipe 504 through the guide ball head 4, be introduced into the inside of the pressurization tank 501 through the liquid injection pipe 504, and finally be exported from the bottom end of the pressurization tank 501 to enter the inside of the injection tank 6. At the same time, the mixed liquid entering the inside of the pressurization tank 501 can push the pressurization turbine 502 to rotate and drive the main shaft 503 to rotate. At this time, the bottom injection tank 6 rotates relative to the pressurization power assembly 5, and at the same time, the mixed liquid is further pressurized.

[0046] As Figure 1 and Figure 5 and Figure 6 As shown in the figure, a piston plate 9 is movably sleeved inside the injection tank 6. The bottom end of the piston plate 9 is fixedly connected with a limit plate 10. The bottom end of the limit plate 10 is fixedly connected with a piston rod 11. The bottom end of the piston rod 11 penetrates through the bottom end of the limit pipe 8.

[0047] Embodiment: When the high-pressure mixed liquid enters the interior of the spraying tank 6, pressure can be applied to the piston plate 9 inside the spraying tank 6. At this time, the limiting plate 10 at the bottom moves downward accordingly, driving the piston rod 11 at the bottom to move downward at the same time. Meanwhile, the limiting spring 12 can be compressed. When the limiting spring 12 is compressed to the limit position, the piston plate 9 then descends to the lowest point position, that is, when it descends below the spraying groove 7. At this time, the high-pressure mixed liquid can be discharged through the spraying groove 7 and is sprayed out rotationally through the rotation of the spraying tank 6, making it contact the crystal and dissolve the crystal to complete the preliminary dredging process.

[0048] By using a calcification crystal dissolving agent as a crystal remover to replace the traditional high-pressure water impact, the crystal is dissolved chemically. At the same time, the pressure of the mixed liquid is used to realize the automatic rotation of the spraying tank 6, achieving rotational spraying, ensuring that the crystal can uniformly contact the mixed liquid, improving the dissolution rate of the crystal, avoiding the use of traditional excavation methods, not only not damaging the tunnel, but also improving the dredging efficiency.

[0049] As Figure 1 and Figure 3 and Figure 5 and Figure 7 As shown, a limiting spring 12 is movably sleeved on the outer side of the piston rod 11 and is located inside the limiting tube 8. The upper and lower ends of the limiting spring 12 are respectively connected to the bottom end of the limiting plate 10 and the bottom end of the inner cavity of the limiting tube 8. When the limiting spring 12 is in the extreme compression state, the piston plate 9 is at the lowest point and is located below the spraying groove 7. The bottom end of the piston rod 11 is fixedly connected to a movable plate 13 located inside the limiting tube 17. The middle of the bottom end of the movable plate 13 is fixedly connected to an extension rod 14. The bottom end of the extension rod 14 is fixedly connected to a drill bit 15 located below the limiting tube 17. The auxiliary dredging assembly 16 is axially and equidistantly installed at the bottom end of the movable plate 13.

[0050] Embodiment: When the piston plate 9 descends to the lowest point, the piston rod 11 also descends to the lowest point at the same time, driving the movable plate 13 and the extension rod 14 at the bottom to move downward, and finally driving the drill bit 15 to descend to the lowest point position. At this time, the drill bit 15 can dredge the crystal at the bottom. At the same time, the rotation of the spraying tank 6 can synchronously drive the drill bit 15 at the bottom to rotate, and the crystal at the bottom is dredged through the rotation of the drill bit 15 to complete the auxiliary dredging process of the crystal.

[0051] By utilizing the pressure when the crystal remover is output and the power of its flow, the drill bit 15 automatically descends and the automatic rotation of the drill bit 15 is realized. Through the mechanical drilling method in cooperation with the chemical solvent, the crystal is further pulverized and dredged. The whole process can be completed simultaneously with chemical dissolution. By using the mechanical plus chemical method to improve the pulverization efficiency of the crystal, thereby shortening the dredging time and improving the overall dredging efficiency of the pipeline.

[0052] As Figure 3 and Figure 5 as well as Figure 7 and Figure 8 As shown, the auxiliary dredging assembly 16 includes a first fixed seat 161, and the first fixed seats 161 are axially and equidistantly installed at positions near the outer side of the bottom end of the movable plate 13. One ends of the first fixed seats 161 away from the movable plate 13 are all movably connected with connecting rods 163 through rotating shafts. One ends of the second fixed seats 162 away from the first fixed seats 161 are all movably connected with the second fixed seats 162 through rotating shafts. One ends of the second fixed seats 162 away from the connecting rods 163 are all fixedly installed with linkage frames 164 inside the limiting pipe 17. One ends of the linkage frames 164 away from the second fixed seats 162 penetrate through one side of the limiting pipe 17 and are fixedly connected with dredging blades 165. When the movable plate 13 is at the lowest point, the distance between the dredging blades 165 and the limiting pipe 17 is at the maximum value.

[0053] Embodiment: And when the movable plate 13 descends to the lowest point, at this time the connecting rod 163 deflects obliquely downward accordingly and applies a thrust to the second fixed seat 162. At this time, the second fixed seat 162 displaces in a direction away from the movable plate 13 accordingly, and at the same time applies a thrust to the linkage frame 164. At this time, the dredging blade 165 displaces in a direction away from the limiting pipe 17 accordingly until the distance between the dredging blade 165 and the limiting pipe 17 is at the maximum value. At this time, the dredging blade 165 can be fully unfolded, and the rotation of the injection box 6 drives the circumferential rotation of the dredging blade 165, thereby dredging the inner side surface of the pipeline.

[0054] Through further utilization of the pressure of the crystal remover, through the input of the crystal remover, when the drill bit 15 descends, the simultaneous outward expansion of multiple dredging blades 165 can be realized. When the device can realize crystal drilling and crushing, the crystals on the inner wall of the pipeline can be synchronously crushed. Through all-round mechanical crushing and chemical solvents, the rapid dredging of the crystals inside the pipeline is realized, and the dredging efficiency is significantly improved.

[0055] A dredging method for a dredging structure of a buried side type in a mountain tunnel based on a calcification crystal dissolving agent includes the following steps:

[0056] S1: Before dredging, inspection wells are added at the drainage pipes, and the limiting pipe 17 and the drill bit 15 are inserted into the interior of the drainage pipes. At the same time, the calcification crystal dissolving agent is injected into the interior of the crystal remover tank 1 and mixed with clear water. At the same time, the internal water pump is turned on, and the mixed liquid is injected into the interior of the guiding box 3 through the high-pressure water pipe 2, and is injected into the interior of the boosting power assembly 5 through the guiding ball head 4;

[0057] S2: At this time, the mixed liquid is discharged into the injection tank 6 at the bottom end of the pressurization tank 501, and the mixed liquid will drive the pressurization turbine 502 to rotate and complete pressurization. At this time, the injection tank 6 at the bottom end rotates accordingly, driving the injection groove 7 to rotate circumferentially, and the mixed liquid is sprayed out by rotating through the injection groove 7. The crystal is dissolved by the chemical reagent to complete the preliminary dredging;

[0058] S3: At the same time, when the mixture enters the injection tank 6, it pushes the piston plate 9 to move downward, and the limiting plate 10 and the piston rod 11 move downward synchronously, driving the movable plate 13 to move downward, and finally driving the extension rod 14 and the drill bit 15 to move downward. The crystal inside the pipeline is further dredged by the rotation of the drill bit 15;

[0059] S4: When the movable plate 13 moves downward, the connecting rod 163 deflects outward, driving the linkage frame 164 to move outward. At this time, the dredging blade 165 moves away from the limiting pipe 17 to complete the expansion. Cooperating with the rotation of the injection tank 6, the dredging blade 165 rotates circumferentially to assist in dredging the side wall of the pipeline, completing the final dredging process.

[0060] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A buried side-type dredging structure for mountain tunnels based on a calcification crystal dissolving agent, comprising a de-crystallizing agent box (1), characterized in that: The front side of the bottom end of the decrystallizer box (1) is fixedly connected to a high-pressure water pipe (2), a water pump is installed inside the decrystallizer box (1), the interior of the decrystallizer box (1) is filled with a calcification crystal dissolving agent, the end of the high-pressure water pipe (2) away from the decrystallizer box (1) is fixedly connected to a guide box (3), the bottom end of the guide box (3) is movably connected to a guide ball head (4), the guide ball head (4) rotates relative to the guide box (3), and the guide ball head (4) is connected to the interior of the guide box (3), The bottom end of the guide ball head (4) is fixedly connected to a boost power assembly (5), the bottom end of the boost power assembly (5) is movably connected to a jet box (6), the outer side surface of the jet box (6) is provided with jet grooves (7) at axially equal intervals, the middle part of the bottom end of the jet box (6) is fixedly connected to a limit tube (8), the outer side surface of the bottom end of the jet box (6) is fixedly installed with a limit tube (17), and the outer side surface of the limit tube (17) is movably connected to an auxiliary dredging assembly (16) at axially equal intervals.

2. According to claim 1, a buried side-type dredging structure for mountain tunnels based on a calcification crystal dissolving agent is characterized by: The boost power assembly (5) comprises a boost box (501), one side of the boost box (501) is fixedly connected to a liquid injection pipe (504), and one end of the liquid injection pipe (504) away from the boost box (501) is fixedly connected to the bottom end of the guide ball head (4).

3. The buried side dredging structure for mountain tunnels based on a calcification crystal dissolving agent according to claim 2 is characterized by: A main shaft (503) is movably mounted in the middle of the boost box (501); a boost turbine (502) located inside the boost box (501) is fixedly sleeved on the outer side of the main shaft (503); the bottom end of the main shaft (503) is connected to the middle of the top end of the injection box (6); the bottom end of the boost box (501) and the injection box (6) are movably engaged; and the injection box (6) rotates relative to the boost box (501).

4. The buried side dredging structure for mountain tunnels based on a calcification crystal dissolving agent according to claim 3 is characterized by: The injection box (6) has a piston plate (9) movably sleeved inside, the bottom end of the piston plate (9) is fixedly connected to a limit plate (10), the bottom end of the limit plate (10) is fixedly connected to a piston rod (11), and the bottom end of the piston rod (11) passes through the bottom end of the limit tube (8).

5. The buried side-type dredging structure for mountain tunnels based on a calcification crystal dissolving agent according to claim 4 is characterized by: The outer side surface of the piston rod (11) is movably sleeved with a limit spring (12) located inside the limit tube (8); the upper and lower ends of the limit spring (12) are respectively connected to the bottom end of the limit plate (10) and the bottom end of the inner cavity of the limit tube (8); when the limit spring (12) is in an extreme compression state, the piston plate (9) is located at the lowest point and below the injection slot (7).

6. The buried side dredging structure for mountain tunnels based on a calcification crystal dissolving agent according to claim 1 is characterized by: The bottom end of the piston rod (11) is fixedly connected to a movable plate (13) located inside the limiting tube (17); the middle part of the bottom end of the movable plate (13) is fixedly connected to an extension rod (14); the bottom end of the extension rod (14) is fixedly connected to a drill bit (15) located below the limiting tube (17); and the auxiliary dredging assembly (16) is axially equidistantly mounted on the bottom end of the movable plate (13).

7. The buried side-type dredging structure for mountain tunnels based on a calcification crystal dissolving agent according to claim 6 is characterized by: The auxiliary dredging component (16) comprises a first fixed seat (161), which is axially equidistantly mounted at a position close to the outer side surface of the bottom end of the movable plate (13), and one end of the first fixed seat (161) away from the movable plate (13) is movably connected to a connecting rod (163) via a rotating shaft, and one end of the second fixed seat (162) away from the first fixed seat (161) is movably connected to a second fixed seat (162) via a rotating shaft.

8. The buried side dredging structure for mountain tunnels based on a calcification crystal dissolving agent according to claim 7 is characterized by: A linkage frame (164) located inside the position-limiting tube (17) is fixedly mounted on one end of the second fixed seat (162) away from the connecting rod (163); one end of the linkage frame (164) away from the second fixed seat (162) penetrates one side of the position-limiting tube (17) and is fixedly connected to a dredging blade (165); when the movable plate (13) is at the lowest point, the distance between the dredging blade (165) and the position-limiting tube (17) is at a maximum value.

9. The method for dredging a buried side dredging structure of a mountain tunnel based on a calcification crystal dissolving agent according to claim 8, characterized in that: The following steps are involved: S1: Before dredging, add an inspection well at the drainage pipe, insert the limit pipe (17) and the drill bit (15) into the drainage pipe, inject the calcification crystal dissolving agent into the de-crystallizing agent box (1) and mix it with clean water, turn on the internal water pump, and inject the mixed liquid into the guide box (3) through the high-pressure water pipe (2), and then inject it into the booster power assembly (5) through the guide ball head (4); S2: At this time, the mixed liquid is discharged into the injection box (6) at the bottom through the bottom of the booster box (501), and the mixed liquid drives the booster turbine (502) to rotate and complete the pressurization. At this time, the injection box (6) at the bottom rotates accordingly, and drives the injection slot (7) to rotate circumferentially. The mixed liquid is then rotated and ejected through the injection slot (7), and the crystals are dissolved by chemical reagents to complete the initial dredging. S3: When the mixture enters the injection box (6), the piston plate (9) is pushed to move downward, the limit plate (10) and the piston rod (11) move downward synchronously, and the movable plate (13) is driven to move downward, and finally the extension rod (14) and the drill bit (15) are driven to move downward, and the crystals inside the pipeline are further cleared by the rotation of the drill bit (15); S4: When the movable plate (13) moves downward, the connecting rod (163) deflects toward the outer side surface and drives the linkage frame (164) to move toward the outer side surface. At this time, the dredging blade (165) moves away from the limiting tube (17) to complete the expansion. In conjunction with the rotation of the injection box (6), the dredging blade (165) rotates circumferentially to assist in dredging the side wall of the pipeline, completing the final dredging process.

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