Wellhead reinforcing device of inspection well
By installing lower and upper protective cylinders at the manhole opening, combined with support frames and tie rod structures, the problem of road damage around the manhole caused by manhole lifting was solved, achieving efficient, environmentally friendly, and high-quality overall road improvement.
Patent Information
- Application Number
- CN202423225919.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-26
AI Technical Summary
After the road structure layer is laid, the process of raising the manhole can easily cause damage to the road structure layer around the manhole. Furthermore, the existing construction methods will disturb the structure layer around the manhole and generate environmental pollution such as noise and dust.
Design a manhole reinforcement device, including a lower protective cylinder and an upper protective cylinder, combined with a lower support frame and an upper support frame, and enhance the load-bearing capacity and stability of the manhole area through the connection of the lower and upper tie rods, avoiding the cumbersome steps of breaking the road structure layer above the manhole.
It improves the integrity and continuity of the road structure layer around the manhole, reduces construction noise and environmental pollution, shortens the construction cycle, reduces costs, and improves construction efficiency and quality.
Smart Images
Figure CN223753370U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of inspection wells, specifically a kind of inspection well wellhead reinforcing device. BACKGROUND
[0002] The inspection well on the carriageway, when the road structure layer is paved, generally first lifts the inspection well to the top of roadbed, and the wellhead is sealed with cover plate, and after the paving is completed, the road structure layer on the upper part of wellhead is broken, and after breaking, the inspection well is lifted again.But in the breaking process of structure layer, the structure layer around the well is disturbed;If the well is directly lifted, the well shaft is also easy to be deviated. CONTENT OF UTILITY MODEL
[0003] The utility model discloses a kind of inspection well wellhead reinforcing device, to solve the phenomenon that inspection well is broken in the structure layer around well due to well lifting after water-stable paving, greatly improve the integrity of the road structure layer around well.
[0004] The utility model is implemented as follows: a kind of inspection well wellhead reinforcing device, its structure includes the lower protective cylinder being arranged on well shaft and the upper protective cylinder being arranged on the lower protective cylinder;Lower support frame is arranged on the lower part of the inner wall of the lower protective cylinder, lower support ring is arranged on the upper part of the inner wall of the lower protective cylinder, and lower cover plate is arranged on the lower support ring;Upper support frame is arranged on the lower part of the inner wall of the upper protective cylinder, upper support ring is arranged on the upper part of the inner wall of the upper protective cylinder, and upper cover plate is arranged on the upper support ring.
[0005] Further, the center line of the lower protective cylinder, the upper protective cylinder and the well shaft is on the same straight line.
[0006] Further, the radius of the lower protective cylinder is greater than the radius of the well shaft, and the radius of the upper protective cylinder is greater than the radius of the lower protective cylinder.
[0007] Further, the lower protective cylinder is located in road base layer, the height of the lower protective cylinder is same with the thickness of road base layer, the lower end of the lower protective cylinder is in contact with the upper end surface of roadbed, and the upper end is in contact with the lower end surface of road surface layer.
[0008] Further, the upper protective cylinder is located in road surface layer, the height of the upper protective cylinder is same with the thickness of road surface layer;The lower end of the upper protective cylinder is in contact with the upper end surface of road base layer, and the upper end is flush with road surface layer.
[0009] Further, upper tie bar is arranged between the upper end of the upper protective cylinder and road base layer, and the upper tie bar is arranged obliquely.
[0010] Further, upper hook is arranged on the upper end of the upper tie bar, the upper hook is used for hooking on the upper part of the inner wall of the upper protective cylinder, and the lower end of the upper tie bar is inserted into road base layer.
[0011] Further, a lower pull bar is arranged between the upper end of the lower protection cylinder and the roadbed, and the lower pull bar is arranged obliquely.
[0012] Further, the lower support frame comprises a lower horizontal rod and a lower vertical rod connected to the lower horizontal rod, the lower horizontal rod and the lower vertical rod are perpendicular to each other and connected in the middle, and both ends of the lower horizontal rod and both ends of the lower vertical rod are connected to the inner wall of the lower protection cylinder.
[0013] Further, a lower pull ring is arranged on the lower cover plate.
[0014] The utility model discloses a lower protection cylinder and upper protection cylinder are set up, and the bearing capacity and stability of the inspection well mouth area are effectively enhanced, prevent the deformation or damage of well mouth caused by external force effect, such as vehicle load, construction machinery etc.
[0015] The utility model avoids the cumbersome step of breaking the upper road structure layer of well mouth after water stable paving, reduces the noise, dust pollution etc.
[0016] The utility model discloses a lower protection cylinder and upper protection cylinder are set up, and the bearing capacity and stability of the inspection well mouth area are effectively enhanced, prevent the deformation or damage of well mouth caused by external force effect, such as vehicle load, construction machinery etc. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the structural schematic diagram of the utility model.
[0018] Figure 2 It is the structural schematic diagram of the lower protection cylinder placing on the well shaft.
[0019] Figure 3 It is the structural schematic diagram of the cement slurry pouring around the well shaft.
[0020] Figure 4 It is the plan view of the upper protection cylinder.
[0021] In the figure: 1, well shaft, 2, lower protective cylinder, 3, lower support frame, 3-1, lower horizontal rod, 3-2, lower vertical rod, 4, lower support ring, 5, lower cover plate, 5-1, lower pull ring, 6, upper protective cylinder, 7, upper support frame, 8, upper support ring, 9, upper cover plate, 9-1, upper pull ring, 10, roadbed, 11, road base layer, 12, road surface layer, 13, lower pull bar, 14, upper pull bar, 14-1, upper hook, 15, cement paste. DETAILED DESCRIPTION
[0022] As shown in Figure 1 and Figure 4 the utility model discloses lower protective cylinder 2 set up on well shaft 1, lower support frame 3 set up in the lower part of the inner wall of lower protective cylinder 2, lower support ring 4 set up in the upper part of the inner wall of lower protective cylinder 2, lower cover plate 5 set up on lower support ring 4, upper protective cylinder 6 set up on lower protective cylinder 2, upper support frame 7 set up in the lower part of the inner wall of upper protective cylinder 6, upper support ring 8 set up in the upper part of the inner wall of upper well cylinder 2 and upper cover plate 9 set up on upper support ring 8. Well shaft 1, lower protective cylinder 2 and upper protective cylinder 6 are coaxial.
[0023] The radius of lower protective cylinder 2 is 15cm larger than the radius of well shaft 1, and the radius of upper protective cylinder 6 is 15cm larger than the radius of lower protective cylinder 2. The upper of roadbed 10 is road base layer 11, and the upper of road base layer 11 is road surface layer 12. The lower end of lower protective cylinder 2 contacts with the upper of roadbed 10, and the upper end is flush with road base layer 11, that is, the height of lower protective cylinder 2 is same with the thickness of road base layer 11. The size of lower cover plate 5 matches with the inner diameter of lower protective cylinder 2, and the size of upper cover plate 9 matches with the inner diameter of upper protective cylinder 6.
[0024] Lower support frame 3 is cross-shaped, including horizontally arranged lower horizontal rod 3-1 and horizontally arranged lower vertical rod 3-2 connected to lower horizontal rod 3-1, and lower horizontal rod 3-1 and lower vertical rod 3-2 are perpendicular to each other and connected in the middle, and both ends of lower horizontal rod 3-1 and both ends of lower vertical rod 3-2 are connected with the inner wall of lower protective cylinder 2. Lower support frame 3 enhances the carrying capacity of the lower part of lower protective cylinder 2, and also improves the rigidity and stability of the whole well shaft structure, preventing deformation or damage due to external force. Upper support frame 7 is similar in structure and function to lower support frame 3. In this embodiment, lower support frame 3 and upper support frame 7 are both made of wooden frame.
[0025] The lower support ring 4 is located 6 cm below the upper end of the lower protective cylinder 2. As an internal annular support structure of the lower protective cylinder 2, the lower support ring 4 enhances the load-bearing capacity of the upper part of the lower protective cylinder 2, effectively strengthening its overall structural strength and preventing deformation or damage under external forces. Simultaneously, the lower support ring 4 provides stable support for the lower cover plate 5. A pull-down ring 5-1 is located in the middle of the upper side of the lower cover plate 5, and an upper pull-down ring 9-1 is located in the middle of the upper side of the upper cover plate 9. The pull-down ring 5-1 facilitates the placement of the lower cover plate 5 on the lower protective cylinder 2 or its removal. When the lower cover plate 5 is placed on the lower support ring 4 of the lower protective cylinder 2, the upper end of the pull-down ring 5-1 is lower than the upper end of the lower protective cylinder 2 to avoid interference with the upper protective cylinder 6. The structure and function of the upper pull-down ring 9-1 are similar to those of the pull-down ring 5-1. The lower support ring 4 and the upper support ring 8 are made of wood.
[0026] In this embodiment, the well casing 1 is made of reinforced concrete, and the lower protective casing 2 and the upper protective casing 6 are made of wooden formwork. The lower protective casing 2 and the upper protective casing 6 can also be made of metal, such as steel.
[0027] A lower tie bar 13 is installed between the upper end of the lower protective cylinder 2 and the subgrade 10, and an upper tie bar 14 is installed between the upper end of the upper protective cylinder 6 and the road base layer 11. The upper tie bar 14 is inclined, and an upper hook 14-1 is provided at the upper end of the upper tie bar 14. The upper hook 14-1 is used to hook onto the upper part of the inner wall of the upper protective cylinder 6, and the lower end of the upper tie bar 14 is inserted into the road base layer 11. There are eight upper tie bars 14, evenly distributed along the circumference of the upper protective cylinder 6. The structure and function of the lower tie bar 13 are similar to those of the upper tie bar 14. Both the lower tie bar 13 and the upper tie bar 14 are made of φ6 steel bars with a length of 80cm.
[0028] The construction method for reinforcing the area around the manhole of a manhole using this invention includes the following steps:
[0029] 1. Raise the manhole shaft 1 to the top of the roadbed 10, and backfill the roadbed around the manhole shaft 1 layer by layer to the top of the roadbed 10 according to the design requirements;
[0030] 2. For example Figure 2 As shown, the lower protective cylinder 2 is placed in the center at the upper end of the well cylinder 1, and the lower protective cylinder 2 sits on the upper end of the roadbed 10. The lower cover plate 5 is placed on the lower support ring 4 of the lower protective cylinder 2.
[0031] 3. Hook the upper end of the lower tie rod 13 onto the upper end of the inner wall of the lower protective cylinder 2, and insert the lower end of the lower tie rod 13 obliquely into the roadbed 10;
[0032] 4. Pave the road base layer 11. After the road base layer 11 is paved, cut off the lower tie rod 13 above the top of the lower protective cylinder 2.
[0033] 5. Place the upper protective cylinder 6 in the center on the lower protective cylinder 2. The upper protective cylinder 6 sits on the upper end of the road base layer 11. Place the upper cover plate 9 on the upper support ring 8 of the upper protective cylinder 6.
[0034] 6. Hook the upper end of the upper tie rod 14 onto the upper end of the inner wall of the upper protective cylinder 6, and insert the lower end of the upper tie rod 14 obliquely into the road base layer 11;
[0035] 7. Pave the road surface layer 12. After the road surface layer 12 is paved, cut off the upper tie rod 14 above the top of the upper protective cylinder 6.
[0036] 8. Remove the upper protective cylinder 6 and the lower protective cylinder 2 in sequence. After removing the lower protective cylinder 2, as follows: Figure 3 As shown, according to the design requirements, continue to install well 1 on well 1 for lifting. After lifting, pour 1:1 high-concentration cement slurry 15 at the gap between well 1 and the outside of the original upper protective cylinder 6 and lower protective cylinder 2, that is, at the gap between well 1 and the road base layer 11 and the road surface layer 12. The upper end of cement slurry 15 is flush with the upper end of road surface layer 12.
Claims
1. A manhole opening reinforcement device, characterized by, The lower protective cylinder is arranged on the wellbore, and the upper protective cylinder is arranged on the lower protective cylinder; a lower support frame is arranged on the lower part of the inner wall of the lower protective cylinder, a lower support ring is arranged on the upper part of the inner wall of the lower protective cylinder, and a lower cover plate is arranged on the lower support ring; an upper support frame is arranged on the lower part of the inner wall of the upper protective cylinder, an upper support ring is arranged on the upper part of the inner wall of the upper protective cylinder, and an upper cover plate is arranged on the upper support ring.
2. The inspection well access reinforcement device of claim 1, wherein, The center line of the lower protective cylinder, the upper protective cylinder and the wellbore are on the same line.
3. Inspection well head reinforcement device according to claim 1 or 2, characterized in that The radius of the lower protective cylinder is greater than the radius of the wellbore, and the radius of the upper protective cylinder is greater than the radius of the lower protective cylinder.
4. The inspection well access reinforcement device of claim 3, wherein, The lower protective cylinder is arranged in the road base layer, the height of the lower protective cylinder is the same as the thickness of the road base layer, the lower end of the lower protective cylinder is in contact with the upper end surface of the roadbed, and the upper end is in contact with the lower end surface of the road surface layer.
5. The inspection well access reinforcement device of claim 3, wherein, The upper protective cylinder is arranged in the road surface layer, the height of the upper protective cylinder is the same as the thickness of the road surface layer, the lower end of the upper protective cylinder is in contact with the upper end surface of the road base layer, and the upper end is flush with the road surface layer.
6. The inspection well access reinforcement device of claim 5, wherein, An upper reinforcing bar is arranged between the upper end of the upper protective cylinder and the road base layer, and the upper reinforcing bar is arranged obliquely.
7. The inspection well access reinforcement device of claim 6, wherein, An upper hook is arranged at the upper end of the upper reinforcing bar, the upper hook is used for hooking the upper part of the inner wall of the upper protective cylinder, and the lower end of the upper reinforcing bar is inserted into the road base layer.
8. The access hole reinforcement apparatus of claim 4, wherein, A lower reinforcing bar is arranged between the upper end of the lower protective cylinder and the roadbed, and the lower reinforcing bar is arranged obliquely.
9. The access hole reinforcement apparatus of claim 1, wherein The lower support frame comprises a lower horizontal rod and a lower vertical rod connected to the lower horizontal rod, the lower horizontal rod and the lower vertical rod are perpendicular to each other and connected in the middle, and both ends of the lower horizontal rod and both ends of the lower vertical rod are connected to the inner wall of the lower protective cylinder.
10. The access hole reinforcement apparatus of claim 1, wherein A lower pull ring is arranged on the lower cover plate.