Rapid emergency reinforcing device for subsurface tunnel
By designing a concealed tunnel reinforcement device with a rapid emergency reinforcement structure and a pulley anti-slip structure, the reinforcement problem of tunnel deformation and collapse risks is solved, and rapid and safe reinforcement is achieved, ensuring the safety of rescue personnel and pedestrians on the ground without affecting the Tunnel passes.
Patent Information
- Application Number
- CN202420763289.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-12
AI Technical Summary
During the construction of concealed tunnels, due to complex geological conditions and inadequate construction measures, the tunnel is too deformed and has a risk of collapse. Conventional reinforcement methods are time-consuming and pose a threat to the safety of rescue personnel, affecting the safety of pedestrians on the ground and personnel in the tunnel.
A rapid emergency reinforcement device for concealed tunnels consisting of rapid emergency reinforcement structure, pulley fast anti-slip structure and steel frame quick connection structure is designed, including a triangle formed by outer oblique reinforcement steel, inner oblique reinforcement steel and horizontal reinforcement steel. The reinforcement system, equipped with steel pulleys and quick connection bolts, can be quickly assembled and transported, ensuring the safety of rescue personnel and not affecting the passage of the tunnel.
The device reduces the operating time of rescue personnel, shortens the reinforcement time, provides space for rescue personnel, and ensures the safety and stability of reinforcement, does not destroy the existing initial structure, and improves the efficiency and safety of emergency reinforcement. sex.
Smart Images
Figure CN222333819U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of civil engineering, relates to the field of reinforcement of dark-dig tunnels, and specifically relates to a fast emergency reinforcement device for dark-dig tunnels. Background Art
[0002] With the massive construction of municipal bridges, culverts, railways and rail transit, more and more dark excavation tunnels are being built. However, due to the complex and changeable geological conditions and inadequate dark excavation construction measures, dark excavation construction often faces the risk of excessive deformation and collapse, which not only threatens the personal safety of people in the tunnel, but also affects the safety of ground pipelines and pedestrians on the road.
[0003] When the tunnel is monitored to have large deformation and there is a risk of collapse, it is often necessary to reinforce the tunnel, and the time for rescue is very precious. The conventional reinforcement method is to set up steel supports and scaffolding in the tunnel for support reinforcement or to fill the tunnel with back pressure soil for reinforcement. However, the erection of steel supports and scaffolding requires on-site splicing and transportation, and the back pressure soil requires a large amount of earth to be transported to the reinforcement location. The above two methods often delay precious rescue time and pose a great threat to the personal safety of rescue personnel in the tunnel. Utility Model Content
[0004] In view of the problems existing in the above-mentioned prior art, the utility model provides a rapid emergency reinforcement device for a dark-excavated tunnel, so as to achieve the purpose of rapidly reinforcing the tunnel when a large deformation of the tunnel is detected, and to ensure the safety of the rescue personnel in the tunnel and the safety of the ground. At the same time, after the reinforcement device is erected, it will not affect the passage of personnel in the tunnel.
[0005] The purpose of the utility model can be achieved by the following technical solutions:
[0006] A quick emergency reinforcement device for a dark-digging tunnel consists of a quick emergency reinforcement structure, a pulley quick anti-slip structure, and a steel frame quick connection structure.
[0007] The rapid emergency reinforcement structure includes external oblique reinforcement steel, internal oblique reinforcement steel and horizontal reinforcement steel; two external oblique reinforcement steels are connected with the horizontal reinforcement steel to form a triangular frame, and two internal oblique reinforcement steels are arranged in the triangular frame, and their upper ends are respectively connected to the lower flanges of the two external oblique reinforcement steels, and their lower ends are connected to the upper flanges of the horizontal reinforcement steel; the external oblique reinforcement steel, the internal oblique reinforcement steel and the horizontal reinforcement steel form an overall triangular reinforcement system; the upper ends of the two external oblique reinforcement steels are connected with steel splicing plates; the two ends of the horizontal reinforcement steel are respectively connected with horizontal reinforcement steel end plates, and the lower part of the horizontal reinforcement steel is connected to two parallel vertical steel legs through steel frame quick connection bolts and the upper end plate of the vertical steel legs, and the lower part of the vertical steel legs is connected to the steel pulley through the lower end plate of the vertical steel legs.
[0008] The pulley quick anti-skid structure is composed of a pulley quick anti-skid channel steel and anti-skid rubber. The pulley quick anti-skid channel steel is a rectangular structure, and triangular anti-skid rubbers are arranged on the left and right sides of the inner side below the pulley quick anti-skid channel steel.
[0009] The steel frame quick connection structure is composed of a steel frame quick connection channel steel, a steel frame quick connection bolt, and a steel frame quick connection steel rib plate. Two bolt holes are respectively arranged at both ends of the steel frame quick connection channel steel, and a steel frame quick connection steel rib plate is arranged beside the bolt hole. The steel frame quick connection bolt can pass through the bolt hole and connect with the upper flange of the horizontal reinforcement steel.
[0010] Furthermore, the outer dimensions of the triangular reinforcement system are slightly smaller than the inner edge dimensions of the primary support structure, so that the elevation of the horizontal reinforcement steel is located above the center line of the tunnel.
[0011] Furthermore, before processing the steel sections, the dimensions of each steel section need to be measured and calculated based on the inner contour dimensions of the primary support, so that the distance between the three corner points of the triangular reinforcement system and the inner edge of the primary support structure is controlled within 50mm to 100mm, ensuring that the reinforcement device can be smoothly pushed to the designated reinforcement position during emergency rescue.
[0012] Furthermore, there is a gap between the steel splicing plate and the primary support structure, and the gap is filled with early-strength and fast-hardening fine stone concrete.
[0013] Furthermore, there is a gap between the horizontal reinforcement steel end plate and the primary support structure, and the gap is filled with wooden wedges.
[0014] Furthermore, there is a space for people to pass between the adjacent vertical steel legs.
[0015] Furthermore, the adjacent rapid emergency reinforcement structures are connected into a whole through the steel frame rapid connection structure.
[0016] Compared with the prior art, the beneficial effects of the present invention are:
[0017] (1) The components of the dark-excavated tunnel rapid emergency reinforcement device provided by the utility model can be assembled in advance, which is convenient for construction and does not require complicated splicing operations, thus reducing the time for rescue personnel to operate in the tunnel;
[0018] (2) The rapid emergency reinforcement structure included in the utility model has a steel pulley disposed underneath, which facilitates rapid transportation and shortens the time for reinforcement and rescue;
[0019] (3) The rapid emergency reinforcement structure included in the utility model can reserve space for personnel between the vertical steel legs to facilitate the passage of emergency personnel;
[0020] (4) The dark-excavated tunnel rapid emergency reinforcement device provided by the utility model has reasonable overall force and does not need to destroy the existing primary support structure, making it safer to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is an elevation view of the utility model for reinforcement in a dark tunnel;
[0022] Figure 2 This is a structural diagram of the pulley quick anti-slip structure of the utility model;
[0023] Figure 3 This is a structural diagram of a steel frame quick connection structure of the utility model;
[0024] Figure 4 It is a node diagram of the top position A of the triangular reinforcement system of the rapid emergency reinforcement structure of the utility model;
[0025] Figure 5 It is a node diagram of the horizontal position B of the triangular reinforcement system of the rapid emergency reinforcement structure of the utility model;
[0026] As shown in the figure: external oblique reinforcement steel 1, internal oblique reinforcement steel 2, horizontal reinforcement steel 3, steel splicing plate 4, vertical steel leg 5, horizontal reinforcement steel end plate 6, pulley quick anti-skid channel steel 7, steel pulley 8, wooden wedge 9, early strength and fast hardening fine stone concrete 10, steel frame quick connection channel steel 11, steel frame quick connection bolts 12, steel frame quick connection steel rib 13, anti-skid rubber 14, primary support structure 15, vertical steel leg upper end plate 16, vertical steel leg lower end plate 17. DETAILED DESCRIPTION
[0027] The following describes the specific implementation of the utility model in detail in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand how to practice the utility model. Although the utility model is described in conjunction with its preferred specific embodiments, these embodiments are only illustrative, rather than limiting the scope of the utility model.
[0028] See also Figure 1 to Figure 5 As shown, a quick emergency reinforcement device for a dark-excavated tunnel is provided, which consists of three parts: a quick emergency reinforcement structure, a pulley quick anti-slip structure, and a steel frame quick connection structure.
[0029] The rapid emergency reinforcement structure includes an outer oblique reinforcement steel 1, an inner oblique reinforcement steel 2 and a horizontal reinforcement steel 3. The two outer oblique reinforcement steels 1 are welded with the horizontal reinforcement steel 3 to form a triangular frame. The two inner oblique reinforcement steels 2 are arranged in the triangular frame, and their upper ends are respectively welded to the lower flanges of the two outer oblique reinforcement steels 1, and their lower ends are welded to the upper flanges of the horizontal reinforcement steels 3. According to the cross-sectional shape of the tunnel, the lengths of the outer oblique reinforcement steel 1, the inner oblique reinforcement steel 2 and the horizontal reinforcement steel 3 are determined, and a steel splicing plate 4 with a thickness of not less than 20 mm is welded at the upper ends of the two outer oblique reinforcement steels 1 to form an overall triangular reinforcement system. The outer dimensions of the triangular reinforcement system are slightly smaller than the inner edge dimensions of the primary support structure 15, so that the elevation of the horizontal reinforcement steel 3 is located above the center line of the tunnel. The upper flange of the horizontal reinforcement steel 3 is perforated and plug welded, and 4 bolt rods are welded. Horizontal reinforcement steel end plates 6 are welded at both ends of the horizontal reinforcement steel 3, and the thickness of the horizontal reinforcement steel end plates 6 is not less than 20 mm. The bottom of the horizontal reinforcement steel 3 is welded to two parallel vertical steel legs 5 through the steel frame quick connection bolts 12 and the vertical steel leg upper end plate 16 welded above the vertical steel leg 5. The space between adjacent vertical steel legs 5 can be used for people to walk through. The vertical steel leg lower end plate 17 is welded below the vertical steel leg 5, and a steel pulley 8 is welded below the vertical steel leg lower end plate 17 for the rapid transportation of the reinforcement steel frame. Before processing the steel, the size of each steel needs to be measured and calculated according to the inner contour size of the primary support structure 15, so that the distance between the three corner points of the overall triangular reinforcement system and the inner edge of the primary support structure 15 is 50 mm to 100 mm, ensuring that the reinforcement device can be smoothly pushed to the designated reinforcement position during emergency rescue. The model of the oblique reinforcement steel 1, the oblique reinforcement steel 2, the horizontal reinforcement steel 3, and the vertical steel leg 5 is not less than 22b to ensure that the reinforcement device has sufficient rigidity.
[0030] See also Figure 2 As shown, the pulley quick anti-skid structure is composed of a pulley quick anti-skid channel steel 7 and an anti-skid rubber 14. The pulley quick anti-skid channel steel 7 is a rectangular structure, and triangular anti-skid rubbers 14 are arranged on the left and right sides of the inner side below the pulley quick anti-skid channel steel 7. The pulley quick anti-skid channel steel 7 can be placed below the lower end plate 17 of the vertical steel support leg, and the steel pulley 8 is placed in the pulley quick anti-skid channel steel 7. The pulley quick anti-skid channel steel is a channel steel with a wall thickness of not less than 6mm, and the width of the channel steel is approximately equal to the height from the horizontal reinforcement steel end plate 6 to the bottom of the steel pulley 8, so that the force of the vertical system is transmitted from the channel steel to the primary support bottom plate.
[0031] See also Figure 3As shown, the steel frame quick connection structure is composed of a steel frame quick connection channel steel 11, a steel frame quick connection bolt 12 and a steel frame quick connection steel rib plate 13. The steel frame quick connection channel steel 11 adopts a channel steel with a wall thickness of not less than 6mm, and the length of the channel steel can be 0.4-0.8m according to the needs of the steel frame reinforcement spacing. Two bolt holes are set at both ends of the steel frame quick connection channel steel 11, and the hole diameter is slightly larger than the diameter of the steel frame quick connection bolt 12. A total of 8 steel frame quick connection bolts 12 are set for each reinforced steel frame. The diameter of the steel frame quick connection bolt 12 is not less than 22mm, and the perforation plug is welded to the upper flange of the horizontal reinforcement steel 3. A steel frame quick connection steel rib plate 13 is set at each side of the bolt hole for bolt limit.
[0032] When it is detected that the tunnel is deformed greatly and emergency reinforcement is required, the emergency operator will erect the entire rapid emergency reinforcement structure and push the entire structure to the position to be reinforced through the steel pulley 8 below. Figure 4 As shown, the gap between the steel splicing plate 4 and the primary support structure 15 is filled with early-strength and fast-hardening fine stone concrete 10, whose strength is not less than C30. Figure 5 As shown, the gaps between the horizontal reinforcement steel end plates 6 and the primary support 11 at the left and right ends of the reinforcement device are filled and plugged with wooden wedges 9 to ensure that the reinforcement system is in close contact with the primary support structure 15, thereby completing the reinforcement of a steel frame and ensuring that the primary support structure 15 and the reinforcement steel combination can transmit force reliably. At the bottom end of the reinforcement device, the pulley quick anti-slip structure is placed on the front and rear sides of the steel pulley 8 to fix the pulley. After completing two reinforced steel frames, for each two adjacent reinforced steel frames, align the bolt holes of the steel frame quick connection channel steel 11 with the steel frame quick connection bolts 12 to install and fix the connection channel steel, and connect the two adjacent reinforced steel frames longitudinally to form a stable reinforcement system until the reinforcement of the dark excavated tunnel is completed.
[0033] For the fully described utility model, there can also be a variety of transformation and modification implementation schemes, which are not limited to the specific examples of the above-mentioned implementation methods. The above-mentioned examples are only used as an illustration of the utility model, not as a limitation of the utility model. In short, the protection scope of the utility model should include those obvious changes or substitutions and modifications to those of ordinary skill in the art.
Claims
1. A rapid emergency reinforcement device for a dark tunnel, characterized in that: It consists of a rapid emergency reinforcement structure, a pulley rapid anti-slip structure, and a steel frame rapid connection structure; The rapid emergency reinforcement structure comprises an outer oblique reinforcement steel (1), an inner oblique reinforcement steel (2) and a horizontal reinforcement steel (3); two outer oblique reinforcement steels (1) are connected to the horizontal reinforcement steel (3) to form a triangular frame; two inner oblique reinforcement steels (2) are arranged in the triangular frame, and their upper ends are respectively connected to the lower flanges of the two outer oblique reinforcement steels (1), and their lower ends are connected to the upper flanges of the horizontal reinforcement steel (3); the outer oblique reinforcement steel (1), the inner oblique reinforcement steel (2) and the horizontal reinforcement steel (3) are connected to ... The solid steel (3) forms an integral triangular reinforcement system; the upper ends of the two outer oblique reinforcement steels (1) are connected with steel splicing plates (4); the two ends of the horizontal reinforcement steel (3) are respectively connected with horizontal reinforcement steel end plates (6); the horizontal reinforcement steel (3) is connected to two mutually parallel vertical steel legs (5) through steel frame quick connection bolts (12) and the upper end plates (16) of the vertical steel legs; the lower part of the vertical steel legs (5) is connected to the steel pulley (8) through the lower end plates (17) of the vertical steel legs; The pulley quick anti-skid structure is composed of a pulley quick anti-skid channel steel (7) and an anti-skid rubber (14); the pulley quick anti-skid channel steel (7) is a rectangular structure, and triangular anti-skid rubbers (14) are arranged on the left and right sides of the lower inner side of the pulley quick anti-skid channel steel (7); The steel frame quick connection structure is composed of a steel frame quick connection channel steel (11), a steel frame quick connection bolt (12) and a steel frame quick connection steel rib plate (13). Two bolt holes are respectively arranged at both ends of the steel frame quick connection channel steel (11), and a steel frame quick connection steel rib plate (13) is arranged beside the bolt holes.
2. The rapid emergency reinforcement device for a dark tunnel according to claim 1 is characterized in that: The outer dimensions of the triangular reinforcement system are smaller than the inner edge dimensions of the primary support structure (15), so that the elevation of the horizontal reinforcement steel (3) is located slightly above the tunnel centerline.
3. The rapid emergency reinforcement device for a dark tunnel according to claim 1 is characterized in that: The distance between the three corner points of the triangular reinforcement system and the inner edge of the primary support structure (15) is 50 mm to 100 mm.
4. The rapid emergency reinforcement device for a dark tunnel according to claim 1 is characterized in that: There is a gap between the steel splicing plate (4) and the primary support structure (15), and the gap is filled with early-strength and fast-hardening fine stone concrete (10).
5. The rapid emergency reinforcement device for a dark tunnel according to claim 1 is characterized in that: There is a gap between the horizontal reinforcement steel end plate (6) and the primary support structure (15), and the gap is filled with wooden wedges (9).
6. The dark tunnel rapid emergency reinforcement device according to claim 1 is characterized in that: There is a space for people to pass between adjacent vertical steel legs (5).
7. The rapid emergency reinforcement device for a dark tunnel according to claim 1 is characterized in that: The adjacent rapid emergency reinforcement structures are connected into a whole through the steel frame rapid connection structure.