Flexible anti-rockfall steel shed tunnel
By designing flexible anti-stone steel shed holes, using arc-shaped frames, connecting rods, wire mesh and elastic connectors, combined with buffer bases, the problem of poor deformation resistance of the existing shed holes is solved, and the effect of effectively resisting rockfall impact and improving safety is achieved.
Patent Information
- Application Number
- CN202421101182.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The existing shed caves did not remove the impact hazards of rolling stones and falling rocks during installation, and had poor resistance to deformation and were prone to collapse.
A flexible anti-stone steel shed hole is designed, using several parallel arc frames, connecting rods, wire mesh and elastic connectors. Combined with the buffer base, the impact force is reduced through the deformation of the elastic connector and the buffer base, and the resistance to deformation is improved.
It effectively resists the impact of falling rocks, improves the resistance to deformation of the steel shed hole, prevents collapse, extends the service life, and improves safety.
Smart Images
Figure CN222541325U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of road rockfall protection, in particular to a flexible rockfall protection steel shed tunnel. Background Art
[0002] In recent years, with the vigorous development of infrastructure and transportation construction in my country, the number and mileage of highway tunnels have increased significantly. Especially in the mountainous areas in western my country, highway tunnel groups, a special tunnel combination, are becoming an important part of the western expressway network. There are many tunnels in mountainous areas, and there are dangerous rockfalls at the entrances and exits of tunnels. Setting up tunnel sheds is an effective measure to deal with geological disasters such as dangerous rockfalls on slopes.
[0003] When installing the current shed tunnel, a concrete foundation is first poured on the ground, and then the lower end of the shed tunnel is fixed on the concrete foundation. This type of shed tunnel structure does not eliminate the impact hazards of rolling stones and falling rocks, has poor deformation resistance, and is prone to collapse. Utility Model Content
[0004] In order to solve the above problems of the prior art, the utility model provides a flexible anti-rockfall steel shed tunnel, which can effectively resist the impact of falling rocks and solve the problem that the steel shed tunnel has poor anti-deformation ability and is prone to collapse.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flexible anti-rockfall steel shed tunnel, comprising a plurality of arc-shaped frames arranged in parallel, a plurality of connecting rods connected between two adjacent arc-shaped frames, a wire mesh arranged between two adjacent connecting rods, the wire mesh being connected to the connecting rods through elastic connecting parts, and a buffer base being installed at the lower end of the arc-shaped frames.
[0006] The above-mentioned structural design is adopted, and elastic connecting parts and buffer bases are arranged. When rolling stones and solid objects impact the steel shed hole, the elastic connecting parts and buffer bases are deformed to reduce the impact force on the shed hole, thereby preventing the steel shed hole body from undergoing large deformation, improving the steel shed hole's anti-deformation ability, and protecting the steel shed hole from being damaged.
[0007] Preferably, the elastic connecting member includes a limiting rod and a supporting tube clamped at both ends of the limiting rod, the limiting rod can move up and down in the supporting tube, a tension spring is sleeved on the limiting rod, both ends of the tension spring are fixedly connected to the supporting tube, a pull ring is fixedly connected to one end of the supporting tube, and the elastic connecting member is buckled and connected to the connecting rod and the wire mesh through the pull ring.
[0008] With the above structural design, when a rockfall occurs, if there is no such mechanism, the falling rocks will cause great impact and damage to the steel shed hole. The function of the tension spring is that when the rock hits the wire mesh, the tension spring is pulled and part of the impact kinetic energy is converted into elastic potential energy. The tension spring reduces the impact on the steel shed by increasing the time of momentum change, thus playing a buffering role.
[0009] Preferably, the buffer base includes a movable rod fixedly connected to the lower end of the arc-shaped skeleton, the lower end of the movable rod extends into the fixed tube, and the lower end of the movable rod is fixedly connected to a limit plate to prevent the movable rod from moving out of the fixed tube, and a buffer spring is sleeved on the movable rod, and the upper and lower ends of the buffer spring are respectively abutted against the arc-shaped skeleton and the fixed tube.
[0010] With the above structural design, a buffer base is set at the lower end of the arc frame. When rolling stones or falling rocks fall onto the wire mesh, the buffer spring can buffer the external force exerted on the arc frame, thereby protecting the arc frame and increasing the life of the arc frame.
[0011] Preferably, a flange is fixedly connected to the lower end of the buffer base, and the flange is fixedly connected to the concrete base via fixing bolts.
[0012] By adopting the above structural design, the steel shed hole is fixedly connected to the concrete base through flange connection, which has a simple structure and convenient connection.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] Elastic connectors and buffer bases are provided. When rolling stones and solid objects impact the steel shed hole, the elastic connectors and buffer bases are deformed to mitigate the impact force on the shed hole, thereby preventing the steel shed hole body from undergoing a large deformation. This improves the steel shed hole's anti-deformation capacity, protects the steel shed hole from damage, and improves the safety and service life of the steel shed hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the buffer base of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the elastic connector of the utility model;
[0018] Figure 4 It is a schematic diagram of the internal structure of the elastic connecting piece of the utility model. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-4 The utility model provides a technical solution: a flexible anti-rockfall steel shed hole, comprising a plurality of arc-shaped frames 1 arranged in parallel, a plurality of connecting rods 2 connected between two adjacent arc-shaped frames 1, the connecting rods 2 arranged in parallel, a steel mesh 3 arranged between two adjacent connecting rods 2, the steel mesh 3 connected to the connecting rods 2 through an elastic connector 5, and a buffer base 4 installed at the lower end of the arc-shaped frame 1. The elastic connector 5 and the buffer base 4 are provided, and when the rolling stone and the ground impact the steel shed hole, the elastic connector 5 and the buffer base 4 are deformed to reduce the impact force on the shed hole, prevent the steel shed hole body from being greatly deformed, improve the anti-deformation ability of the steel shed hole, and protect the steel shed hole from being damaged.
[0021] The elastic connector 5 includes a limit rod 504 and a bearing tube 501 clamped at both ends of the limit rod 504. The limit rod 504 can move up and down in the bearing tube 501. A tension spring 502 is sleeved on the limit rod 504. Both ends of the tension spring 502 are fixedly connected to the bearing tube 501. One end of the bearing tube 501 is fixedly connected to a pull ring 503. The elastic connector 5 is snap-connected with the connecting rod 2 and the wire mesh 3 through the pull ring 503. When a rockfall occurs, if there is no such mechanism, the falling rocks will cause great impact and damage to the steel shed hole. The function of the tension spring 502 is that at the moment when the rock hits the wire mesh 3, the tension spring 502 is stretched and part of the impact kinetic energy is converted into elastic potential energy. The tension spring 502 reduces the impact on the steel shed by increasing the time of momentum change, thus playing a buffering role.
[0022] The buffer base 4 includes a movable rod 402 fixedly connected to the lower end of the arc-shaped frame 1, the lower end of the movable rod 402 extends into the fixed cylinder 401, and the lower end of the movable rod 402 is fixedly connected to a limit plate 404 for preventing the movable rod 402 from moving out of the fixed cylinder 401, and a buffer spring 403 is sleeved on the movable rod 402, and the upper and lower ends of the buffer spring 403 are respectively in contact with the arc-shaped frame 1 and the fixed cylinder 401. The buffer base 4 is set at the lower end of the arc-shaped frame 1. When rolling stones or falling stones fall onto the wire mesh 3, the buffer spring 403 can buffer the external force on the arc-shaped frame 1, thereby protecting the arc-shaped frame 1 and improving the life of the arc-shaped frame 1.
[0023] The lower end of the buffer base 4 is fixedly connected with a flange 6, and the flange 6 is fixedly connected to the concrete base through fixing bolts 7. The steel shed hole is fixedly connected to the concrete base through the flange connection, which has a simple structure and convenient connection.
[0024] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. Although the present utility model is described in detail with reference to the above embodiments, it is still possible for the technical solutions recorded in the above embodiments to be modified, or some of the technical features therein to be replaced by equivalents, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A flexible anti-rockfall steel shed tunnel, characterized by: The invention comprises a plurality of arc-shaped frames (1) arranged in parallel, a plurality of connecting rods (2) being connected between two adjacent arc-shaped frames (1), a steel wire mesh (3) being arranged between two adjacent connecting rods (2), the steel wire mesh (3) being connected to the connecting rods (2) via elastic connecting members (5), and a buffer base (4) being installed at the lower end of the arc-shaped frames (1).
2. The flexible rockfall-proof steel shed tunnel according to claim 1, characterized in that: The elastic connecting member (5) comprises a limiting rod (504) and a bearing tube (501) clamped on both ends of the limiting rod (504); the limiting rod (504) can move up and down in the bearing tube (501); a tension spring (502) is sleeved on the limiting rod (504); both ends of the tension spring (502) are fixedly connected to the bearing tube (501); one end of the bearing tube (501) is fixedly connected to a pull ring (503); the elastic connecting member (5) is clamped and connected to the connecting rod (2) and the wire mesh (3) via the pull ring (503).
3. The flexible rockfall-proof steel shed tunnel according to claim 1 is characterized by: The buffer base (4) comprises a movable rod (402) fixedly connected to the lower end of the arc-shaped frame (1); the lower end of the movable rod (402) extends into the fixed tube (401); and the lower end of the movable rod (402) is fixedly connected to a limit plate (404) for preventing the movable rod (402) from moving out of the fixed tube (401); a buffer spring (403) is sleeved on the movable rod (402); and the upper and lower ends of the buffer spring (403) are respectively in contact with the arc-shaped frame (1) and the fixed tube (401).
4. The flexible rockfall-proof steel shed tunnel according to claim 1, characterized in that: A flange (6) is fixedly connected to the lower end of the buffer base (4), and the flange (6) is fixedly connected to the concrete base via fixing bolts (7).