Vertical guide pipe backfill grouting device
By designing a vertical catheter backfilling grouting device for small reservoirs, the problem of insufficient adaptability in the reinforcement of culvert casing of small reservoirs is solved, efficient grouting reinforcement is achieved, large-scale excavation is avoided, construction period is shortened, and grouting density is improved.
Patent Information
- Application Number
- CN202420854282.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-24
AI Technical Summary
The existing backfill grouting devices are not adaptable to the reinforcement of culvert casings in small reservoirs, and cannot effectively avoid large-scale excavation construction, resulting in long construction periods and incomplete grouting.
A vertical conduit backfilling grouting device is designed, including a dam body, a vertical grouting conduit, a concrete culvert pipe and an inner conduit casing. The vertical grouting conduit is inserted at the top of the pipe equidistantly opened at the top of the concrete culvert pipe to achieve efficient grouting of the gap between the inner conduit casing and the concrete culvert pipe.
The device is more adaptable and can effectively reinforce in reservoirs with small operating space, avoid large-scale excavation, shorten construction period, and optimize slurry separation and grouting density to ensure the fullness and compactness of the gap between new and old culverts.
Smart Images
Figure CN222685492U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water conservancy dam body reinforcement, in particular to a vertical conduit backfill grouting device. Background Art
[0002] Casing reinforcement pipe backfill grouting, pipe backfill grouting mainly starts from setting a grouting hole section at a certain distance inside the pipe, and arranging a grouting hole along the top and both sides of the casing, and grouting is carried out in two times, the first time using cement mortar, and the second time using pure cement slurry, and the pipe mouth is closed for backfill grouting; Disadvantages and shortcomings: This structure has weak adaptability, and it is only suitable for backfill grouting between large-sized culverts that can be manually entered for construction. Since the culverts of small reservoirs are generally small in size and cannot be manually entered, it is not adaptable to the reinforcement of culverts in small reservoirs; This is mainly because this process is limited by pipeline specifications and requires sufficient working space.
[0003] The existing backfill grouting device cannot better play a role in the reinforcement of small-sized water culvert casings in reservoirs with small operating space, cannot avoid large-scale excavation and construction, cannot optimize the problems of slurry segregation and insufficient grouting, and cannot ensure the fullness and density of grouting in the gap between new and old culverts. Utility Model Content
[0004] In response to the problems in the prior art, the utility model provides a vertical duct backfill grouting device. The vertical grouting duct backfill grouting device has stronger adaptability and can better play a role in the reinforcement of small-sized water culvert casings in reservoirs with small operating space. It can avoid large-scale excavation and construction, greatly shorten the construction period, and can optimize the problems of slurry segregation and insufficient grouting, thereby ensuring the fullness and density of the grouting in the gap between the new and old culverts.
[0005] The utility model solves the technical problem by adopting a technical solution of a vertical conduit backfill grouting device, comprising a dam body, a vertical grouting conduit, a concrete culvert and a culvert inner casing, wherein a concrete culvert is buried at the bottom of the dam body and the inner casing is sleeved at the bottom end of the concrete culvert, and top grouting holes are opened at equal distances on the top of the concrete culvert and the vertical grouting conduit is inserted into the top grouting holes;
[0006] A grouting exhaust pipe is arranged inside the concrete culvert and at the upper end of the inner casing of the culvert. The grouting exhaust pipe consists of an exhaust hole, a reinforced inner casing, an outer filter mesh layer and a PVC main pipe. The inner surface of the PVC main pipe is sleeved with a reinforced inner casing. A supporting pad is arranged on the top of the dam body, a positioning sleeve is arranged on the supporting pad and the top end of the vertical grouting conduit passes through the positioning sleeve.
[0007] By adopting the above technical scheme, the vertical grouting pipe backfill grouting device is more adaptable and can better play a role in the reinforcement of small-sized water culvert casings in reservoirs with small operating space. It can avoid large-scale excavation and construction, greatly shorten the construction period, and optimize the problems of slurry segregation and insufficient grouting, ensuring the fullness and density of the grouting in the gap between the new and old culverts.
[0008] Specifically, the outer surface of the PVC main body is provided with an outer filter mesh layer, and the outer filter mesh layer is specifically made of glass fiber material.
[0009] Specifically, exhaust holes are arranged at equal distances on the PVC main body, and the reinforced inner sleeve is made of stainless steel.
[0010] Specifically, backfill slurry is filled between the culvert casing and the concrete culvert.
[0011] By adopting the above technical solution, the casing inside the culvert is reinforced, and the overall strength, stiffness and stability of the casing inside the culvert and the concrete culvert are improved.
[0012] Specifically, a dam body conduit hole is provided on the dam body and directly opposite to the pipe top grouting hole, and the vertical grouting conduit passes through the dam body conduit hole.
[0013] Specifically, locking bolts are installed on both sides of the positioning sleeve through screw holes, and positioning ground-inserting rods are inserted at both ends of the support pad through guide sleeves.
[0014] By adopting the above technical solution, the positioning sleeve is used to position the vertical grouting conduit, which makes it easy to adjust the height of the vertical grouting conduit. The support pad and the positioning ground rod are used to improve the stability of the positioning sleeve and prevent movement.
[0015] Beneficial effects of the utility model:
[0016] (1) The vertical conduit backfill grouting device described in the utility model has stronger adaptability and can be better used in the reinforcement of small-sized water culvert casings in reservoirs with small operating spaces, thereby avoiding large-scale excavation and construction and greatly shortening the construction period.
[0017] (2) The vertical conduit backfill grouting device described in the utility model can optimize the problems of slurry segregation and insufficient and inadequate grouting, and ensure that the grouting between the new and old culverts is full and dense. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the grouting exhaust pipe structure of the utility model;
[0021] Figure 3 This is a schematic diagram of the support pad and positioning sleeve structure of the utility model.
[0022] In the figure: 1. dam body; 2. concrete culvert; 3. casing inside the culvert; 4. backfill slurry; 5. vertical grouting conduit; 6. grouting exhaust pipe; 7. grouting hole on the top of the pipe; 8. conduit hole in the dam body; 9. exhaust hole; 10. reinforced inner casing; 11. outer filter layer; 12. support pad; 13. guide sleeve; 14. positioning ground rod; 15. positioning sleeve; 16. locking bolt; 17. PVC main body. DETAILED DESCRIPTION
[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0024] In order to make the vertical grouting pipe 5 backfill grouting device more adaptable, it can better act on the reinforcement of small-sized water culvert casings in reservoirs with small operating space, avoid large-scale excavation and construction, greatly shorten the construction period, and optimize the problems of slurry segregation and insufficient grouting, and ensure the fullness and density of the grouting between the new and old culverts. Figure 1-3 As shown, a vertical conduit backfill grouting device described in the utility model comprises a dam body 1, a vertical grouting conduit 5, a concrete culvert 2 and a culvert inner casing 3, wherein a concrete culvert 2 is buried at the bottom of the dam body 1 and a culvert inner casing 3 is sleeved at the bottom end of the concrete culvert 2, and top grouting holes 7 are opened at equal distances at the top of the concrete culvert 2 and the vertical grouting conduit 5 is inserted into the top grouting holes 7;
[0025] A grouting exhaust pipe 6 is arranged inside the concrete culvert 2 and at the upper end of the inner casing 3 of the culvert. The grouting exhaust pipe 6 consists of an exhaust hole 9, a reinforced inner casing 10, an outer filter mesh layer 11 and a PVC main pipe body 17. The inner surface of the PVC main pipe body 17 is sleeved with a reinforced inner casing 10. A supporting pad 12 is arranged on the top of the dam body 1. A positioning sleeve 15 is arranged on the supporting pad 12 and the top end of the vertical grouting conduit 5 passes through the positioning sleeve 15.
[0026] When in use, the backfill grouting device of the vertical grouting pipe 5 is more adaptable and can better play a role in the reinforcement of small-sized water culvert casings in reservoirs with small operating space. It can avoid large-scale excavation and construction, greatly shorten the construction period, and optimize the problems of slurry segregation and insufficient grouting, ensuring the fullness and density of the grouting in the gap between the new and old culverts.
[0027] For example, Figure 2 As shown, the utility model also includes that the outer surface layer of the PVC main pipe 17 is provided with an outer filter mesh layer 11, and the outer filter mesh layer 11 is specifically made of glass fiber material.
[0028] When in use, prevent the slurry from entering the grouting exhaust pipe 6 from the exhaust hole 9 during the grouting process.
[0029] For example, Figure 2 As shown, the utility model also includes that the PVC main pipe 17 is provided with exhaust holes 9 at equal distances, and the reinforced inner sleeve 10 is specifically made of stainless steel material.
[0030] When in use, stainless steel material has high strength, is not easy to deform, is durable, and is resistant to acid and alkali corrosion and not easy to rust.
[0031] For example, Figure 1 As shown, the utility model further includes that backfill slurry 4 is filled between the culvert inner casing 3 and the concrete culvert 2 .
[0032] When in use, it plays a role in reinforcing the inner casing 3 of the culvert, and improves the overall strength, rigidity and stability of the inner casing 3 of the culvert and the concrete culvert 2.
[0033] For example, Figure 1 As shown, the utility model also includes that a dam body conduit hole 8 is provided on the dam body 1 and directly opposite to the pipe top grouting hole 7, and the vertical grouting conduit 5 passes through the dam body conduit hole 8.
[0034] When in use, the dam body conduit hole 8 is utilized to facilitate burying the vertical grouting conduit 5 for use.
[0035] For example, Figure 3 As shown, the utility model further includes that locking bolts 16 are installed on both sides of the positioning sleeve 15 through screw holes, and positioning ground-inserting rods 14 are inserted at both ends of the support pad 12 through guide sleeves 13.
[0036] When in use, the positioning sleeve 15 is used to position the vertical grouting conduit 5, so as to facilitate adjustment of the height of the vertical grouting conduit 5. The support pad 12 and the positioning ground rod 14 are used to improve the stability of the positioning sleeve 15 and prevent movement.
[0037] When the utility model is in use, the vertical grouting conduit 5 is located inside the dam body 1, and needs to pass through the grouting hole 7 structure on the top of the concrete culvert 2, and penetrate into the gap between the concrete culvert 2 and the inner casing 3 of the culvert, and the function is to fill the gap between the concrete culvert 2 and the inner casing 3 with the backfill slurry 4 between the pipes;
[0038] The vertical grouting pipes 5 are arranged along the axis of the concrete culvert 2 at intervals of 5m. During the grouting operation, grouting is performed sequentially from downstream to upstream, and each hole is re-grouted three times. The first time is cement mortar, and the second and third times are pure cement grouting. After the backfill grouting between the pipes is completed, the grouting liquid and the grouting pressure are adjusted;
[0039] During the lifting process of the vertical grouting conduit 5, the dam body 1 above the concrete culvert 2 is gradually filled with clay cement slurry until the top of the dam body 1. The starting concrete plugging and the ending concrete plugging are located at the beginning and the end of the concrete culvert 2 respectively, with a length of 2.0m, filling the gap between the concrete culvert 2 and the inner casing 3 of the culvert, so as to form a closed grouting space between the pipes;
[0040] The grouting exhaust pipe 6 is located at the top of the inner side of the head end of the concrete culvert 2, passes through the concrete plugging between the starting pipes, and connects the gap between the concrete culvert 2 and the inner casing 3 of the culvert with the external air. The function is to observe the completion of the backfill grouting between the pipes. When the cement slurry is discharged from the grouting exhaust pipe 6 for 5 minutes, it shows that the backfill grouting is completed, and the grouting exhaust pipe 6 is plugged;
[0041] The backfill grouting device of the vertical grouting pipe 5 is more adaptable and can better play a role in the reinforcement of small-sized water culvert casings in reservoirs with small operating space. It can avoid large-scale excavation and construction, greatly shorten the construction period, and optimize the problems of slurry segregation and insufficient grouting, ensuring the fullness and density of the grouting in the gap between the new and old culverts.
[0042] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.
Claims
1. A vertical conduit backfill grouting device, characterized in that: The invention comprises a dam body (1), a vertical grouting conduit (5), a concrete culvert (2) and a culvert casing (3); the concrete culvert (2) is buried at the bottom of the dam body (1), and the culvert casing (3) is sleeved at the bottom end of the concrete culvert (2); top grouting holes (7) are opened at equal distances at the top of the concrete culvert (2), and the vertical grouting conduit (5) is inserted into the top grouting hole (7); A grouting exhaust pipe (6) is arranged inside the concrete culvert (2) and at the upper end of the inner casing (3) of the culvert. The grouting exhaust pipe (6) is composed of an exhaust hole (9), a reinforced inner casing (10), an outer filter layer (11) and a PVC main pipe (17). The inner surface of the PVC main pipe (17) is sleeved with a reinforced inner casing (10). A supporting pad (12) is arranged on the top of the dam body (1). A positioning sleeve (15) is arranged on the supporting pad (12), and the top end of the vertical grouting conduit (5) passes through the positioning sleeve (15).
2. A vertical conduit backfill grouting device according to claim 1, characterized in that: The outer surface of the PVC main body (17) is provided with an outer filter mesh layer (11), and the outer filter mesh layer (11) is specifically made of glass fiber material.
3. A vertical conduit backfill grouting device according to claim 1, characterized in that: The PVC main body (17) is provided with exhaust holes (9) at equal intervals, and the reinforced inner sleeve (10) is specifically made of stainless steel.
4. A vertical conduit backfill grouting device according to claim 1, characterized in that: Backfill slurry (4) is filled between the culvert casing (3) and the concrete culvert (2).
5. A vertical conduit backfill grouting device according to claim 1, characterized in that: A dam body conduit hole (8) is provided on the dam body (1) and directly opposite the pipe top grouting hole (7), and the vertical grouting conduit (5) passes through the dam body conduit hole (8).
6. A vertical conduit backfill grouting device according to claim 1, characterized in that: Locking bolts (16) are installed on both sides of the positioning sleeve (15) through screw holes, and positioning ground-inserting rods (14) are inserted at both ends of the support pad (12) through guide sleeves (13).