A rockfall protection support device

Abstract

The utility model discloses a rockfall protection support device, which belongs to the technical field of rockfall protection. The device comprises a steel column, which is installed on a slope for installing a protection net. At least one anchor rope is arranged between the upper end of the steel column and the slope. The device also comprises a buffer plate and a buffer spring. A reinforced concrete foundation is arranged at the lower end of the steel column. The buffer plate is fixedly arranged at the lower part of the steel column. A buffer spring is arranged between the buffer plate and the reinforced concrete foundation. The utility model arranges buffer springs at the lower part of the steel column, specifically at the slope facing side and the back slope side of the lower part of the steel column. After the steel column is subjected to force, a part of the force is borne by two high-strength springs. The high-strength spring at the slope facing side of the steel column bears the tensile force, and the high-strength spring at the back slope side of the steel column bears the pressure, thereby sharing the force of pulling up the steel wire rope and making it not easy to be broken. The design and installation of the external plate make the installation and connection of the protection net more convenient and quick, thereby improving the construction efficiency.

Description

Technical Field

[0001] The utility model relates to a supporting device, in particular to a rockfall protection supporting device, belonging to the technical field of rockfall protection. Background Art

[0002] Slope rockfall prevention grid is widely used in slope protection of railways, highways, mines, hydropower projects, etc. It is classified into active protection and passive protection. The active protection system is a variety of flexible nets mainly composed of wire rope nets, which are covered and wrapped on the required protection slope or rock to limit the weathering, peeling or destruction of the slope rock soil and the collapse of dangerous rocks (reinforcement effect), or control the movement of falling rocks within a certain range (enclosure effect). The passive protection system is composed of four main parts: wire rope net, annular net (an additional layer of wire grid when small pieces of falling rocks need to be intercepted), fixing system (anchor rods, anchor ropes, bases and support ropes), decompression rings and steel columns. The steel column and wire rope net are connected and combined to form a whole, forming surface protection for the protected area, thereby preventing the collapse of rock soil from falling and playing a role in slope protection.

[0003] At present, in order to ensure the safety of broken rock slopes, passive protection grids are often laid under the slopes to protect against falling rocks, rolling stones and shallow collapse caused by weathering, rain or vibration on the rock slopes. The rock mass at the top of the slope has a large potential energy. Once the rocks collapse, the potential energy is converted into kinetic energy. The risk of geological disasters is serious, which is one of the most important internal factors affecting the stability of open-pit mining slopes. To ensure safety, passive protection nets are used to intercept the collapse and rolling of sporadic rock blocks on the slopes.

[0004] The existing passive protection system uses a wire rope net (ring net) fixed on the steel columns on both sides, and anchor ropes are pulled on the steel columns, and a decompression ring is set on the anchor rope. When a rockfall occurs, the kinetic energy of the rockfall is transmitted to the ring net (twisted hexagonal net). Since the net is connected to the steel column, the force is transmitted to the steel column, and the steel column further transmits the force to the upper anchor rope. Since the upper anchor rope is usually made of wire rope, the elongation after being pulled and stressed is small. Although a decompression ring is installed, the potential energy of the rockfall is huge, and the rigid wire rope may break and be damaged. In addition, the existing steel column and the ring net are mostly directly fixedly connected, which is not convenient for disassembly and maintenance of the ring net. Summary of the invention

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a supporting device for protecting against falling rocks.

[0006] The technical solution adopted by the utility model is: to design a rockfall protection support device, including a steel column, which is installed on the slope for installing a protection net, at least one anchor rope is stretched between the upper end of the steel column and the slope, and it also includes a buffer plate and a buffer spring, a reinforced concrete foundation is arranged at the lower end of the steel column, the buffer plate is fixedly arranged at the lower part of the steel column, and a buffer spring is arranged between the buffer plate and the reinforced concrete foundation.

[0007] Furthermore, buffer springs are respectively provided on the slope-facing side and the slope-reverse side of the steel column described in the present design.

[0008] Furthermore, in the present design, the buffer plate and the steel column are connected by bolts, a pad is provided on the reinforced concrete foundation, and both ends of the buffer spring are respectively connected to the buffer plate and the pad.

[0009] Furthermore, a buffer plate is respectively arranged on the slope side and the back slope side of the steel column of the present design, the buffer plate is an L-shaped plate, the steel column is an I-beam or H-beam, and the buffer plate is connected to the two wing plates on one side of the steel column by bolt assemblies.

[0010] Furthermore, the steel column of the present design is arranged obliquely relative to the reinforced concrete foundation, and the buffer plates on both sides of the steel column are staggered in the vertical direction.

[0011] Furthermore, in the present design, a first connecting ring is provided under the buffer plate, a corresponding second connecting ring is provided on the pad, and buckles are provided at both ends of the buffer spring to connect with the first connecting ring and the second connecting ring.

[0012] Furthermore, the present design also includes an external plate. A plurality of connection holes are longitudinally opened on the web of the steel column, and corresponding mounting holes are opened on the external plate. The two are connected by a bolt assembly. The protective net is installed on the external plate. When the protective net is installed on one side of the steel column, the external plate is installed on one side of the web. When the protective nets are installed on both sides of the steel column, an external plate is installed on both sides of the web.

[0013] Furthermore, the reinforced concrete foundation described in this design has a specification of 1000x1000x1000mm, and the pad has a specification of 800x800x20mm.

[0014] Furthermore, in the present design, two anchor ropes are arranged between the upper end of the steel column and the slope, and pressure relief rings are arranged on the anchor ropes.

[0015] Furthermore, the slope-facing side and the slope-reverse side of the steel column described in the present design are respectively provided with buffer springs inclined to the left and right sides.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model arranges buffer springs at the lower part of the steel column, specifically at the facing slope side and the back slope side of the lower part of the steel column. Since a high-strength buffer spring (normally in a natural state without stress) is installed in the force direction of the steel column (parallel to the direction of rockfall), after the steel column is stressed, part of the force is still borne by the upper pull wire rope (anchor rope), and part of the force is borne by two high-strength springs. The high-strength spring on the facing slope side of the steel column bears the tension, and the high-strength spring on the back slope side of the steel column bears the pressure, which shares the force of the upper pull wire rope and makes it not easy to be broken. And because the spring has the performance of elastic deformation, it does not deform for a long time and can reasonably absorb the received force. Through the cooperation of the buffer plate, the buffer spring and the reinforced concrete foundation, the force received by the steel column can be better shared.

[0018] In addition, the design and installation of external panels make the installation and connection of the protective net more convenient and quick, which improves construction efficiency and makes it easier to disassemble and maintain the protective net. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a cross-sectional schematic diagram of the utility model after installation.

[0021] Figure 2 It is a schematic diagram of the axonometric drawing of the utility model.

[0022] Figure 3 This is a schematic diagram of the exploded view of the utility model (two peripheral boards installed).

[0023] Figure 4 It is a schematic diagram of the front view of the utility model.

[0024] Figure 5 It is a front view schematic diagram of another structural layout of the utility model.

[0025] In the figure: 1. Steel column; 2. Anchor rope; 3. Buffer plate; 4. Buffer spring; 5. Reinforced concrete foundation; 6. Pad; 7. First connecting ring; 8. Second connecting ring; 9. External plate; 10. Pressure relief ring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1

[0029] like Figure 1-Figure 4 As shown: a rockfall protection support device, mainly used for supporting and setting up rockfall protection nets on slopes and the like, comprising a steel column 1, wherein the steel column 1 is installed on the slope for installing a protection net, and at least one anchor rope 2 is stretched between the upper end of the steel column 1 and the slope, wherein one end of the anchor rope 2 is connected to the upper end of the steel column 1, and the other end is anchored to the slope on the facing side of the steel column 1; the rockfall protection support device also includes a buffer plate 3 and a buffer spring 4, wherein a reinforced concrete foundation 5 is provided at the lower end of the steel column 1, wherein the buffer plate 3 is fixedly arranged at the lower part of the steel column 1, and a buffer spring 4 is arranged between the buffer plate 3 and the reinforced concrete foundation 5, and the buffer spring 4 is arranged parallel to the steel column 1.

[0030] Since a high-strength spring (normally in a natural state without stress) is installed in the stress direction of steel column 1 (parallel to the direction of rockfall), after the steel column 1 is stressed, part of the force is still borne by the upper pull wire rope, and part of the force is borne by the high-strength spring, which shares the force of the upper pull wire rope and makes it less likely to be broken. And because the spring has the property of elastic deformation, it does not deform for a long time and can reasonably absorb the received force.

[0031] Example 2

[0032] This embodiment further optimizes the design of the rockfall protection support device based on the embodiment 1, specifically:

[0033] The rockfall protection support device described in this embodiment has buffer springs 4 disposed on the slope facing side and the slope back side of the steel column 1. Two high-strength springs are respectively installed on the front and rear sides of the steel column 1 in the force direction (parallel to the direction of rockfall). The two ends of the springs are respectively welded and fixed to the buffer plate 3 and the structure on the reinforced concrete foundation 5, or are detachably connected.

[0034] After the steel column 1 is subjected to force, part of the force is still borne by the upper pull wire rope, and part of the force is borne by two high-strength springs. The high-strength spring on the slope side of the steel column 1 bears the tension, and the high-strength spring on the back slope side of the steel column 1 bears the pressure, which shares the force of the upper pull wire rope and makes it not easy to be broken.

[0035] Example 3

[0036] This embodiment further optimizes the design of the rockfall protection support device based on the embodiment 2, specifically:

[0037] The buffer plate 3 is connected to the steel column 1 by bolts, which is convenient for disassembly, assembly and maintenance. A pad 6 is arranged on the reinforced concrete foundation 5, and the two ends of the buffer spring 4 are respectively connected to the buffer plate 3 and the pad 6, which is convenient for the connection and setting of the buffer spring 4.

[0038] Example 4

[0039] This embodiment further optimizes the design of the rockfall protection support device based on the embodiment 3, specifically:

[0040] A buffer plate 3 is respectively arranged on the slope side and the back slope side of the steel column 1. The buffer plate 3 is an L-shaped plate, which is convenient for installation and connection. The steel column 1 is an I-beam or H-shaped steel, which is convenient for material acquisition and has good strength. The buffer plate 3 is connected to the two wing plates on one side of the steel column 1 by a group of bolt assemblies, and the structure is simple and practical.

[0041] Example 5

[0042] This embodiment further optimizes the design of the rockfall protection support device based on the embodiment 4, specifically:

[0043] The steel column 1 is tilted relative to the reinforced concrete foundation 5, and the buffer plates 3 on both sides of the steel column 1 are staggered in the vertical direction to avoid stress concentration and ensure the anti-deformation structural strength of each section of the steel column 1. The buffer plates 3 on both sides of the steel column 1 are staggered in the vertical direction to facilitate the installation and use of buffer springs 4 of the same specification, which is convenient for construction and use.

[0044] Example 6

[0045] This embodiment further optimizes the design of the rockfall protection support device based on the embodiment 5, specifically:

[0046] A first connecting ring 7 is arranged under the buffer plate 3, and a corresponding second connecting ring 8 is arranged on the pad 6. Specifically, second connecting rings 8 are respectively arranged at the front and rear ends of the pad 6 to correspond one to one with the first connecting ring 7. Buckles are respectively arranged at both ends of the buffer spring 4 to connect with the first connecting ring 7 and the second connecting ring 8, and the connection is flexibly connected. A notch can be arranged on the buckle ring or the connecting ring to facilitate detachable connection. However, it should be noted that after the buffer spring 4 is installed, the buffer spring 4 should not be easy to fall off from the notch.

[0047] Example 7

[0048] This embodiment further optimizes the design of the rockfall protection support device based on the embodiment 6, specifically:

[0049] The rockfall protection support device described in this embodiment also includes an external plate 9 for connecting other device structures, which is a rectangular plate or a C-shaped plate. A plurality of connection holes are longitudinally opened on the web of the steel column 1, and corresponding mounting holes are opened on the external plate 9. The two are connected by a bolt assembly. The protection net is installed on the external plate 9. When the protection net is installed on one side of the steel column 1, the external plate 9 is installed on one side of the web. When the protection net is installed on both sides of the steel column 1, an external plate 9 is installed on both sides of the web. The external plate 9 can increase the anti-deformation strength of the steel column 1, and the protection net can be connected to the external plate 9 and then installed on the steel column 1, which is more convenient for disassembly and later maintenance.

[0050] Example 8

[0051] This embodiment further optimizes the design of the rockfall protection support device based on the embodiment 7, specifically:

[0052] The reinforced concrete foundation 5 has a size of 1000x1000x1000mm, and the pad 6 has a size of 800x800x20mm, which is sufficient for setting the buffer spring 4 and providing a sufficiently stable base support.

[0053] In this embodiment, two anchor ropes 2 are stretched between the upper end of the steel column 1 and the slope, and a decompression ring 10 is provided on the anchor rope 2 to ensure a better reinforcement effect of the steel column 1 and prevent the steel column 1 from being reinforced by no anchor rope 2 after one wire rope anchor rope 2 breaks.

[0054] Example 9

[0055] This embodiment further optimizes the design of the rockfall protection support device based on the embodiment 8, specifically:

[0056] like Figure 5As shown: The rockfall protection support device described in this embodiment is further provided with buffer springs 4 inclined to the left and right sides on the uphill side and the downhill side of the steel column 1. When the protection net connected to the steel column 1 is impacted by rockfall, it will be subjected to impact force not only in the direction of the rockfall, but also in the left and right lateral directions. The buffer springs 4 inclined to the left and right sides are respectively provided on the uphill side and the downhill side of the steel column 1, so that the steel column 1 has a buffer structure in the four directions of front, back, left and right, and the protection effect on the anchor rope 2 is better.

[0057] The buffer spring 4 of the present application is directly mounted on the steel column 1 with the buffer plate 3 by bolts, and a connecting ring is provided on the buffer plate 3 and the backing plate 6 to facilitate replacement and maintenance of the buffer spring 4.

[0058] In addition, in the description of the present utility model, unless otherwise specified, if the terms "multiple", "multiple roots", "multiple groups" are used, they mean two or more than two, and "several", "several roots", "several groups" mean one or more than one. In the description of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like are used to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, it is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, if the terms "first", "second", "third" are used, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0059] The specific implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A rockfall protection support device, comprising a steel column, the steel column is installed on a slope for installing a protection net, at least one anchor rope is stretched between the upper end of the steel column and the slope, characterized in that: It also includes a buffer plate and a buffer spring. The lower end of the steel column is provided with a reinforced concrete foundation. The buffer plate is fixedly arranged at the lower part of the steel column. A buffer spring is arranged between the buffer plate and the reinforced concrete foundation.

2. The rockfall protection support device according to claim 1, characterized in that: The facing slope side and the back slope side of the steel column are respectively provided with buffer springs.

3. The rockfall protection support device according to claim 1 or 2, characterized in that: The buffer plate is connected to the steel column by bolts, a pad is arranged on the reinforced concrete foundation, and two ends of the buffer spring are respectively connected to the buffer plate and the pad.

4. The rockfall protection support device according to claim 3, characterized in that: A buffer plate is respectively arranged on the slope side and the back slope side of the steel column, the buffer plate is an L-shaped plate, the steel column is an I-beam or H-beam, and the buffer plate is connected to two wing plates on one side of the steel column through bolt assemblies.

5. The rockfall protection support device according to claim 4, characterized in that: The steel column is inclined relative to the reinforced concrete foundation, and the buffer plates on both sides of the steel column are staggered in the vertical direction.

6. The rockfall protection support device according to claim 5, characterized in that: A first connecting ring is arranged under the buffer plate, a corresponding second connecting ring is arranged on the pad plate, and buckles are arranged at both ends of the buffer spring to connect with the first connecting ring and the second connecting ring.

7. The rockfall protection support device according to claim 6, characterized in that: It also includes an external plate. A plurality of connection holes are longitudinally opened on the web of the steel column, and corresponding mounting holes are opened on the external plate. The two are connected by a bolt assembly. The protective net is installed on the external plate. When the protective net is installed on one side of the steel column, the external plate is installed on one side of the web. When the protective nets are installed on both sides of the steel column, an external plate is installed on both sides of the web.

8. The rockfall protection support device according to claim 7, characterized in that: The reinforced concrete foundation has a specification of 1000x1000x1000mm, and the pad has a specification of 800x800x20mm.

9. The rockfall protection support device according to claim 8, characterized in that: Two anchor ropes are arranged between the upper end of the steel column and the slope, and pressure relief rings are arranged on the anchor ropes.

10. The rockfall protection support device according to claim 9, characterized in that: The facing slope side and the back slope side of the steel column are also provided with buffer springs inclined and pulled toward the left and right sides respectively.

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