Operation tunnel drainage ditch silting and blocking disease treatment system and construction method thereof

Abstract

The invention relates to an operation tunnel drainage ditch silting and blocking disease treatment system and a construction method thereof, and the method comprises the following steps: (1) endoscopic plugging detection: drilling holes at intervals of 50m, and accurately detecting silting in a ditch by using a 360-degree rotating endoscope; (2) precise cutting: ensuring that the cutting machine linearly works along a cutting line through a guide device consisting of a fixed block, a guide wheel and a quick-release track; (3) construction of a central drainage ditch inner mold: adopting an adjustable inner mold system (a side template, a telescopic rod and an extension template) to adapt to different sizes, and matching stainless steel drainage hole molds which are distributed in a quincunx shape; (4) cover plate installation: I-shaped steel, suspenders and PVC plates coated with epoxy resin are utilized to form a suspender template system, construction is simplified, and the antifouling performance is improved; and (5) construction of an inner mold of the drainage side ditch: replacing a complex inner mold with a tailorable PVC pipe and a wooden wedge block, and shortening the construction time of the small side ditch. The tunnel drainage system maintenance quality and efficiency can be remarkably improved, and the method has the advantages of being convenient to construct, high in adaptability, low in cost and the like.

Description

Technical Field

[0001] This invention belongs to the field of highway tunnel drainage system maintenance technology, specifically relating to a treatment system and construction method for siltation and blockage of drainage ditches in operating tunnels based on precise positioning and modular repair. Background Technology

[0002] During tunnel operation, drainage ditches are prone to siltation and blockage, affecting drainage efficiency and consequently damaging the road structure. Due to the unique environment inside tunnels, dust and debris from passing vehicles, as well as silt carried by seepage from the tunnel walls, accumulate continuously, making traditional maintenance methods ineffective in addressing complex siltation issues. Traditional drainage system maintenance methods suffer from inaccurate inspections, inconvenient cutting and construction, complex internal formwork installation, and high cover plate installation costs. For example, it is difficult to fully and clearly understand the condition inside the ditch during inspections; deviations are prone to occur during cutting; internal formwork cannot flexibly adapt to different size requirements; and cover plate installation is time-consuming, labor-intensive, and costly. Addressing siltation and blockage often requires prolonged tunnel closures for construction, significantly impacting traffic, and making it difficult to guarantee construction quality, leading to recurring problems.

[0003] Therefore, there is an urgent need for an efficient and precise system for treating siltation and blockage in tunnel drainage ditches, as well as its construction methods. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the prior art by providing a system for treating siltation and blockage in the drainage ditches of operational tunnels and its construction method.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: The construction method for treating siltation and blockage in the drainage ditches of operating tunnels includes the following steps: Step 1, Endoscopic Detection: Mark points at 50m intervals at the locations of the drainage ditches and central drainage ditches. Use a drilling machine to open detection holes at the marked points. Insert the endoscope of the endoscopic detector into the detection hole and display the situation inside the drainage ditch in real time on the monitor through the camera of the endoscope. Step 2, Precise Cutting: Draw a cutting line on the top of the drain at the blockage location. Install a guide device on the protective cover. Place the track 50cm away from the cutting line. Place the cutter with guide wheels at the starting point of the cut. With the guide wheels on the track, start the cutter and cut along the cutting line and guided by the guide wheels. The cutter starts cutting from the lower right corner. Remove the moving track before cutting. After cutting is complete and the cutter is away from the track, reset the moving track. Repeat the removal-reset operation when cutting the other side. Step 3: Installation and construction of the inner formwork of the central drainage ditch: After cutting and cleaning, install the adjustable inner formwork system in the ditch, pass the drainage hole mold through the drainage hole of the side formwork, fix it to the side formwork with the Ω-shaped handle, pour concrete and cure, remove the expansion rod after curing, loosen the second bolt, take out the extension formwork with the handle, and then remove the side formwork. Step 4: Installation of the central drainage ditch cover: Cut four 25cm long I-beams and fix them to both sides of the central drainage ditch. Place the supporting channel steel with hangers on the I-beams. Connect the PVC board below the hangers. After setting up the hanger template system, construct the cover. After curing, loosen the second nut, remove the washer and supporting channel steel, and cut off the hangers that are exposed on the cover. The PVC board and the concrete cover form the drainage ditch cover. Step 5: Installation and construction of the inner formwork of the drainage ditch: After cutting and clearing the drainage ditch, install the steel reinforcement frame, place a PVC pipe in the center of the ditch and set up pads around it, insert the top bottom of the trapezoidal wooden wedge into the groove of the PVC pipe, and pour concrete.

[0006] Furthermore, in step one, a 50mm diameter diamond drill bit is used to drill a probe hole, and the endoscopic instrument is equipped with a 360° rotating endoscope.

[0007] Furthermore, in step two, the guiding device includes a fixed block, a connecting rod, a guide wheel, and a track; the fixed block is installed on the protective cover, located 30cm directly above the axis of the cutting blade, and is connected to the guide wheel through the connecting rod; the track consists of a fixed track and a movable track, both of which are equipped with quick-release connecting buckles at both ends.

[0008] Furthermore, in step three, the adjustable inner mold system includes side templates, telescopic rods, and extension templates; the side templates and extension templates are made of 8mm thick Q235 steel plates, and the top groove and lower middle part of the side templates are provided with ear seats, and the two ends of the telescopic rods are connected to the ear seats by first bolts; the bottom of the side templates and extension templates are connected by connecting plates and M16 second bolts.

[0009] Furthermore, in step three, the drain hole mold is a 304 stainless steel pipe with a diameter of 50mm and a thickness of 2mm. One end is connected to the Ω-shaped handle, and the other end passes through the drain hole. The Ω-shaped handle is fixed to the side template by the screw and the first nut. The drain holes are arranged in a quincunx pattern on both sides of the central drainage ditch.

[0010] Furthermore, in step four, the hanger template system includes Q235 I-beams, supporting channel steel, M20 galvanized hangers, and PVC panels; the flanges of the I-beams are fixed to the ground, the supporting channel steel is placed on the flanges of the I-beams, and a hole slightly larger than the diameter of the hanger is opened in the middle; the PVC panels are composed of a corrugated panel and a PVC core panel, with a thickness of 15mm, and the bottom is coated with 2±0.2mm thick epoxy resin, and are connected to the hangers through threaded holes.

[0011] Furthermore, in step five, the PVC pipe has a diameter of 20cm and a wall thickness of 6±0.5mm. It is cut to size according to the drainage ditch and a groove with a width of 20±1mm is cut. The wooden wedge has the same length as the PVC pipe and is brushed with oil before being inserted into the groove.

[0012] The system for treating siltation and blockage in tunnel drainage ditches, constructed using the aforementioned methods, includes: An endoscopic detector for probing, equipped with a 360° rotating endoscope; The guide device for cutting includes a fixing block, a connecting rod, a guide wheel, and a track with a quick-release connecting buckle; Adjustable internal mold system, including side templates, telescopic rods and extension templates; The formwork system includes I-beams, supporting channel steel, hangers, and PVC panels; Drainage ditch inner mold assembly, including PVC pipe and wooden wedges.

[0013] Working principle and beneficial effects: 1. This invention uses an endoscopic inspection instrument with a 50m spacing for drilling and a 360° rotating endoscope, which can present the internal condition of the drainage ditch and central drainage ditch from all angles and clearly, providing a precise basis for accurate cutting and dredging, and improving the comprehensiveness and accuracy of the inspection. 2. This invention employs a guiding device for road surface cutting, including an installed fixing block, a connecting rod, a rubber guide wheel, and a track made of 10# channel steel with quick-release connecting buckles, ensuring that the cutting machine operates precisely along the cutting line, effectively reducing cutting deviation and significantly improving the quality of cutting construction.

[0014] 3. The present invention installs an adjustable inner mold system in the central drainage ditch. Through the combination of side templates, telescopic rods and extension templates, and with an adjustable and splicable design, it can be flexibly adjusted according to different tunnel drainage ditch sizes and construction requirements, reducing the difficulty of inner mold installation. The design and installation method of the drainage hole mold is stable and easy to operate, ensuring the accurate position of the drainage hole.

[0015] 4. This invention adopts a hanging rod template system for the construction of central drainage ditch covers, which simplifies the installation process. The PVC panels can be cut as needed, improving the overall efficiency of cover installation. The epoxy resin coating also improves the anti-fouling and water-repellent properties of the covers.

[0016] 5. In the process of installing and constructing the inner mold of the drainage ditch, the present invention uses PVC pipe as the inner mold, which greatly improves the construction efficiency and reduces the construction difficulty, taking into account the small cross-sectional size of the roadside drainage ditch. Attached Figure Description

[0017] Figure 1 This invention relates to a method for detecting blockages in drainage ditches using an endoscopic detector. Figure 2 This is a schematic diagram of the cutting machine guide device of the present invention; Figure 3 This is a plan view of the cutting machine guide device of the present invention; Figure 4 This is a schematic elevation view of the adjustable inner mold system of the present invention; Figure 5 This is a schematic diagram of the drainage hole installation of the present invention; Figure 6 This is an elevation view of the suspension rod formwork system of the present invention; Figure 7 This is a perspective view of the cover plate hanger template system of the present invention; Figure 8 This is a cross-sectional view of the installation of the inner mold of the PVC pipe for drainage ditches according to the present invention; Figure 9 This is a flowchart of the construction process of the present invention.

[0018] In the diagram, 1. Detection hole; 2. Drainage ditch; 3. Cutting machine; 4. Protective cover; 5. Track; 6. Fixing block; 7. Connecting rod; 8. Guide wheel; 9. Fixed track; 10. Moving track; 11. Cutting line; 12. Quick-release connecting buckle; 13. Adjustable inner mold system; 14. Side template; 15. Ear seat; 16. Telescopic rod; 17. First bolt; 18. Extension template; 19. Handle; 20. Connecting plate; 21. Second bolt. 21. Bolt; 22. First nut; 23. Screw; 24. Ω-shaped handle; 25. Drain hole mold; 26. Drain hole; 27. Hanger rod template system; 28. Support channel steel; 29. ​​I-beam; 30. Hanger rod; 31. PVC board; 32. Corrugated panel; 33. PVC core board; 34. Epoxy resin; 35. Second nut; 36. Washer; 37. PVC pipe; 38. Wooden wedge; 39. Top base; 40. Spacer block. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0020] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0021] Example 1 like Figure 1-9 As shown, the construction method for treating siltation and blockage in the drainage ditches of operating tunnels includes the following steps: Step 1: Endoscopic probing Mark the locations of the drainage ditch and the central drainage ditch 2 at intervals of 50m. Then, use a drilling machine to drill holes at the marked locations. Next, insert the endoscope on the endoscope into the drilled detection hole 1 and use the camera on the endoscope to display the situation inside the drainage ditch 2 in real time on the monitor.

[0022] Preferably, a diamond drill bit with a diameter of 50mm is used to drill detection holes 1 at 50m intervals.

[0023] Preferably, the endoscope is equipped with a 360° rotating endoscope, and the condition inside the drain ditch 2 is displayed on the monitor in real time.

[0024] Step 2: Precise Cutting Draw a cutting line 11 at the top of the drainage ditch 2 at the blockage location, then install a guide device on the protective cover 4, place the track 5 fifty centimeters away from the cutting line 11, place the cutting machine 3 with the guide wheel 8 at the cutting starting point, place the guide wheel 8 on the track 5, start the cutting machine 3, and the cutting machine 3 will cut forward with the guidance of the cutting line 11 and the guide wheel 8.

[0025] Specifically, the guiding device mainly consists of a fixing block 6, a connecting rod 7, a guide wheel 8, and a track 5. The fixing block 6 is installed on the protective cover 4, located 30cm directly above the cutting disc shaft. The fixing block 6 is connected to one end of the connecting rod 7. The other end of the connecting rod 7 is connected to the guide wheel 8, which is made of rubber and is placed on the track 5.

[0026] The track 5 is mainly composed of a moving track 10 and a fixed track 9. The track 5 is made of 10# channel steel. Both ends of the moving track 10 and the fixed track 9 are equipped with quick-release connecting buckles 12.

[0027] Furthermore, the cutting machine 3 starts cutting from the lower right corner. Before cutting, the moving track 10 is removed to provide a channel for the cutting machine 3. The cutting machine 3 cuts linearly along the cutting line 11 with the assistance of the guide wheel 8. After the cutting machine 3 moves away from the installation range of the moving track 10, the moving track 10 is installed back in its original position. When cutting the next side, the other end of the moving track 10 is removed, and then linear cutting is performed.

[0028] Step 3: Installation and Construction of the Inner Formwork for the Central Drainage Ditch After the central drainage ditch is cut, it is dredged. Then the adjustable inner mold system 13 is installed in the ditch. The drain hole mold 25 is then passed through the drain hole 26 on the side mold 14 and fixed to the side mold 14 with the Ω-shaped handle 24. Then concrete is poured. After curing, the telescopic rod 16 is removed, the second bolt 21 is loosened, the extension mold 18 is taken out with the handle 19, and then the side mold 14 is removed in sequence.

[0029] Specifically, the adjustable inner mold system 13 mainly consists of a side template 14, a telescopic rod 16, and an extension template 18. The top groove of the side template 14 and the lower part of the side template 14 are provided with ear seats 15. The two ends of the telescopic rod 16 are connected to the ear seats 15 respectively and fixed with the first bolt 17. The bottom end of the side template 14 is provided with a connecting plate 20. Both sides of the extension template 18 are provided with connecting plates 20. The side template 14 and the extension template 18 are connected by the connecting plates 20 and fixed with the second bolt 21.

[0030] The side template 14 and the extension template 18 are made of 8mm thick Q235 steel plate and are fastened by M16 second bolts 21 with washers.

[0031] Specifically, the drainage holes are arranged on both sides of the central drainage ditch in a quincunx pattern. The drainage hole mold 25 has a diameter of 50mm and a thickness of 2mm. It is made of 304 stainless steel pipe. One end is connected to the Ω-shaped handle 24, and the other end extends into the drainage hole 26 on the side template 14 and is then fixed to the side template 14 by the Ω-shaped handle 24.

[0032] Furthermore, the Ω-shaped handle 24 is provided with a screw hole, through which the screw 23 on the side template 14 passes and is fastened with the first nut 22.

[0033] Step 4: Installation of Central Drainage Ditch Cover Four 25cm H-beams 29 are pre-cut. Two H-beams 29 are fixed on each side of the central drainage ditch. Then, the supporting channel steel 28 with hangers 30 is placed on the H-beams 29. PVC board 31 is connected below the hangers 30. After the hanger formwork system 27 is erected, the cover plate is constructed. After curing, the second nut 35 is loosened, and the washer 36 and supporting channel steel 28 are detached from the hangers 30 in sequence. The hangers 30 exposed on the cover plate are cut off. The PVC board 31 and the concrete cover plate together form the cover plate of the drainage ditch.

[0034] Specifically, the hanger formwork system 27 mainly consists of I-beams 29, supporting channel steel 28, hangers 30, and PVC panels 31. The 25cm long I-beams 29 are fixed on both sides of the central drainage ditch, with the flanges of the I-beams 29 touching the ground. The supporting channel steel 28 is placed on the upward-facing flange of the I-beams 29, with the concave side of the supporting channel steel 28 facing upward. Two holes with a diameter slightly larger than that of the hangers 30 are made in the middle of the supporting channel steel 28. Both ends of the hangers 30 are threaded. One end is connected to the threaded hole on the PVC panel 31, and the other end is fixed to the supporting channel steel by a washer 36 and a second nut 35.

[0035] Among them, the I-beam 29 is made of Q235 steel, the hanger 30 is made of M20 galvanized bolt, and is equipped with a self-locking second nut 35.

[0036] Specifically, the PVC board 31 is composed of a corrugated panel 32 and a PVC core board 33, with a thickness of 15mm. Four threaded holes are drilled in the corrugated panel 32 to facilitate the connection of the hanger 30. The bottom of the PVC board 31 is coated with epoxy resin 34, with an epoxy coating thickness of 2±0.2mm.

[0037] It is worth noting that the PVC sheet 31 can be cut to the required size of the cover plate to be repaired, and its construction time and cost are less than those required for prefabricated cover plates of varying sizes. The epoxy resin coating on the bottom of the PVC sheet 31 ensures that dirt, crystals and other substances adhere to the PVC sheet 31 and increases its hydrophobicity.

[0038] Step 5: Installation and Construction of Drainage Ditch Inner Formwork First, the drainage ditch is cut and cleared, then the steel reinforcement frame is installed. At the same time, PVC pipe 37 is placed in the center of the ditch, and pads 40 are set around it. Trapezoidal wooden wedges 38 are inserted into the grooves of PVC pipe 37, and then concrete is poured.

[0039] Specifically, the PVC pipe 37 has a diameter of 20cm, a wall thickness of 6±0.5mm, and its length is cut according to the size of the drainage ditch. At the same time, a long groove is manually cut with a groove width of 20±1mm. The length of the wooden wedge 38 is the same as that of the PVC pipe 37. The wooden wedge 38 is trapezoidal, and its upper bottom 39 is inserted into the groove. Before inserting the wooden wedge 38 into the groove, its surface is brushed with oil.

[0040] It is worth noting that, due to the small cross-sectional size of the curb drainage ditch, the use of the hanging rod formwork system 27 is time-consuming and labor-intensive. Using PVC pipe 37 as the inner formwork effectively shortens the time and is convenient and simple to construct.

[0041] The system for treating siltation and blockage in the drainage ditch of an operating tunnel is manufactured using the construction method described above.

[0042] Example 2 The present invention also discloses a treatment system for siltation and blockage of drainage ditches in operating tunnels, which is obtained by construction method of the treatment system for siltation and blockage of drainage ditches in operating tunnels.

[0043] The parts not described in detail in this application are prior art, and therefore are not described in detail in this application.

[0044] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0045] Although this document uses a significant amount of technical terminology, the possibility of using other terms is not excluded. These terms are used merely to facilitate the description and explanation of the nature of this application; interpreting them as any additional limitation would be contrary to the spirit of this application.

[0046] This application is not limited to the above-described preferred embodiments. Anyone can derive other products in various forms under the guidance of this application. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to that of this application falls within the protection scope of this application.

Claims

1. A method for treating a disease of clogging of a tunnel drain, characterized by, It comprises the following steps: Step one, endoscopic detection: mark points at intervals of 50 m at the positions of the drainage side ditch and the central drainage ditch (2), use a drilling machine to open a detection hole (1) at the marked points, insert an endoscope of an endoscopic detector into the detection hole (1), and display the situation in the drainage ditch (2) on a monitor in real time through the camera of the endoscope; Step two, accurate cutting: draw a cutting line (11) on the top of the drainage ditch (2) at the blocked position, install a guide device on the protective cover (4), place a track (5) at a distance of 50 cm from the cutting line (11), place a cutting machine (3) with a guide wheel (8) at the cutting starting point, the guide wheel (8) falls on the track (5), and start the cutting machine (3) to cut along the cutting line (11) and the guide wheel (8); the cutting machine (3) starts cutting from the lower right corner, removes the moving track (10) before cutting, resets the moving track (10) after cutting is completed and the cutting machine (3) moves away, and repeats the removal and resetting operation on the opposite side during cutting; Step three, installation and construction of the central drainage ditch inner mold: dredge after cutting, install an adjustable inner mold system (13) in the ditch, pass a water outlet hole mold (25) through a water outlet hole (26) of a side mold plate (14), fix the water outlet hole mold (25) to the side mold plate (14) through an omega-shaped handle (24), pour concrete and maintain, remove the extension rod (16) after maintenance, loosen the second bolt (21), take out the extension mold plate (18) through the handle (19), and then remove the side mold plate (14); Step four, installation of the central drainage ditch cover plate: cut four 25 cm long I-beams (29) and fix them on both sides of the central drainage ditch, place a support channel steel (28) with a lifting rod (30) on the I-beams (29), connect a PVC plate (31) below the lifting rod (30), construct the cover plate after erecting the lifting rod mold plate system (27), loosen the second nut (35) after maintenance, remove the gasket (36) and the support channel steel (28), cut off the lifting rod (30) exposed to the cover plate, and the PVC plate (31) and the concrete cover plate form the drainage ditch cover plate; Step five, installation and construction of the drainage side ditch inner mold: install a steel reinforcement framework after cutting and dredging the drainage side ditch, place a PVC pipe (37) in the center of the ditch and set gaskets (40) around it, insert the upper base (39) of a trapezoidal long wooden wedge block (38) into the slot of the PVC pipe (37), and pour concrete.

2. The construction method according to claim 1, characterized in that, In step one, a 50 mm diameter diamond drill bit drilling machine is used to open the detection hole (1), and the endoscopic detector is configured with a 360° rotating endoscope.

3. The construction method according to claim 1, characterized in that, In step two, the guide device comprises a fixed block (6), a connecting rod (7), a guide wheel (8), and a track (5); the fixed block (6) is installed on the protective cover (4) and located 30 cm above the center of the cutting blade, connected with the guide wheel (8) through the connecting rod (7); the track (5) is composed of a fixed track (9) and a moving track (10), and both ends of the two are provided with quick-release connection buckles (12).

4. The construction method according to claim 1, characterized in that, In step three, the adjustable inner mold system (13) includes a side template (14), a telescopic rod (16), and an extension template (18); the side template (14) and the extension template (18) are 8mm thick Q235 steel plates, the top groove of the side template (14) and the lower middle part are provided with ear seats (15), and the two ends of the telescopic rod (16) are connected to the ear seats (15) by the first bolt (17); the bottom of the side template (14) and the extension template (18) are connected by a connecting plate (20) and an M16 second bolt (21).

5. The construction method according to claim 1 or 4, characterized in that, In step three, the drain hole mold (25) is a 304 stainless steel pipe with a diameter of 50mm and a thickness of 2mm. One end is connected to the Ω-shaped handle (24), and the other end passes through the drain hole (26). The Ω-shaped handle (24) is fixed to the side template (14) by the screw (23) and the first nut (22). The drain holes are arranged in a plum blossom shape on both sides of the central drainage ditch.

6. The construction method according to claim 1, characterized in that, In step four, the suspension rod template system (27) includes Q235 I-beam (29), support channel steel (28), M20 galvanized suspension rod (30) and PVC board (31); the flange surface of the I-beam (29) is fixed to the ground, the support channel steel (28) is placed on the flange surface of the I-beam (29), and a hole slightly larger than the diameter of the suspension rod (30) is opened in the middle; the PVC board (31) is composed of a corrugated panel (32) and a PVC core board (33), with a thickness of 15mm, and the bottom is coated with 2±0.2mm thick epoxy resin (34), and is connected to the suspension rod (30) through threaded holes.

7. The construction method according to claim 1, characterized in that, In step five, the PVC pipe (37) has a diameter of 20cm and a wall thickness of 6±0.5mm. It is cut to size according to the drainage ditch and has a groove with a width of 20±1mm. The wooden wedge (38) has the same length as the PVC pipe (37) and is brushed with oil before being inserted into the groove.

8. A system for treating the disease of clogging of tunnel drainage ditches, characterized by, Prepared by the construction method according to any one of claims 1-7, comprising: An endoscopic detector for probing, equipped with a 360° rotating endoscope; The guide device for cutting includes a fixing block (6), a connecting rod (7), a guide wheel (8), and a track (5) with a quick-release connecting buckle (12). The adjustable inner mold system (13) includes side templates (14), telescopic rods (16) and extension templates (18). The formwork system (27) includes I-beams (29), supporting channel steel (28), hangers (30) and PVC panels (31); The drainage ditch inner mold assembly includes a PVC pipe (37) and a wooden wedge (38).

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