Lattice retaining wall for geological disaster engineering

Abstract

The utility model discloses a lattice retaining wall used in geological disaster engineering, which comprises positioning anchor bearings, anchor rods and lattice beams, the positioning anchor bearings are arrayed on the slope surface of a side slope, the anchor rods are buried in the side slope, the tail ends of the anchor rods are inserted in the centers of the positioning anchor bearings, the lattice beams are connected in the circumferential direction of the positioning anchor bearings through bolt elastic limiting structures, and the lattice beams are connected in the circumferential direction of the positioning anchor bearings through bolt elastic limiting structures. Grooves matched with the elastic limiting structures of the plug pins are formed in the two ends of the lattice beam, the anchor rods further comprise long anchor rods and short anchor rods, the long anchor rods are inserted into the centers of the positioning anchor seats on the outer ring of the lattice retaining wall, and the short anchor rods are inserted into the centers of the positioning anchor seats except the outer ring of the lattice retaining wall. According to the lattice retaining wall, the bearing capacity and the anti-seismic property of the joint of the positioning anchor seat and the lattice beam are improved, and the service life of the lattice retaining wall is prolonged.

Description

Technical Field

[0001] The utility model patent belongs to the technical field of slope retaining structures, and particularly relates to a lattice retaining wall used in geological disaster engineering. Background Technique

[0002] In China, the lattice retaining wall is a commonly used geological disaster treatment technology and is widely used in landslide disaster treatment and slope protection projects in China. According to the materials used for the lattice, the lattice can be divided into mortar rubble lattice, cast-in-situ concrete lattice, and precast prestressed concrete lattice (also known as PC lattice).

[0003] At present, the form of on-site reinforcement and on-site casting is generally adopted in the industry. Since the cast-in-situ concrete lattice requires multiple processes such as formwork support, reinforcement, casting, and curing, the construction period is long, the process is complex, and a certain curing period is required to achieve the bearing capacity of anchoring and locking, which cannot meet the need for rapid reinforcement of sudden landslide disasters. In the field of geological disaster prevention and control, relevant research and engineering applications of precast high-strength prestressed concrete lattices have been carried out in China, but the project cost of precast high-strength prestressed concrete lattices is relatively high and generally cannot meet the project cost requirements.

[0004] In view of the above technical problems, the prior art, such as an assembled lattice anchor retaining wall disclosed in Chinese Patent (CN219808402U), includes positioning anchor blocks, anchor rods, and lattice beams. The positioning anchor blocks are arrayed on the slope surface of the slope, the ends of the anchor rods are all fixed to a positioning anchor block, a plurality of card slots are circumferentially distributed on the positioning anchor block, the two ends of the lattice beam are respectively clamped with the card slots of two positioning anchor blocks, an anchor cup is sleeved on the anchor rod, a bearing body is embedded on the positioning anchor block, and the anchor cup is rotatably connected with the bearing body.

[0005] The main body of this device is assembled through various scattered components and emphasizes the assembly form of the positioning anchor block and the anchor rod, but simplifies the connection method between the positioning anchor block and the lattice beam. After research by the inventor, it is found that the clamping method has the following disadvantages:

[0006] After long-term rain erosion, there will always be certain geological changes in the bearing slope under the positioning anchor block and the lattice beam, such as: a little ground subsidence caused by water flow erosion, or ground heaving caused by vibration. Such changes will cause a little displacement of the positioning anchor block and the lattice beam on the ground. At this time, the connection between the two installed by the clamping method will be misaligned. In the long run, the connection between the two will be damaged and disconnected, which will weaken the bearing capacity and seismic performance of the device and also shorten its service life.

[0007] Therefore, this paper proposes a lattice retaining wall used in geological disaster engineering. Content of the Utility Model

[0008] To solve the above technical problems, the utility model provides a lattice retaining wall that improves the bearing capacity and seismic performance at the connection between the positioning anchor seat and the lattice beam, and extends its service life.

[0009] To achieve the above technical effects, the utility model is realized through the following technical solutions: A lattice retaining wall for geological disaster engineering, including a positioning anchor seat, an anchor rod, and a lattice beam. The positioning anchor seats are arrayed on the slope surface of the slope. The anchor rod is buried in the slope and the end of the anchor rod is inserted into the center of the positioning anchor seat. The positioning anchor seat is circumferentially connected with the lattice beam through a pin elastic limiting structure. Grooves for cooperating with the pin elastic limiting structure are provided at both ends of the lattice beam. The anchor rod also includes a long anchor rod and a short anchor rod. The long anchor rod is inserted into the center of the positioning anchor seat on the outer circle of the lattice retaining wall, and the short anchor rod is inserted into the center of the positioning anchor seat except for the outer circle of the lattice retaining wall.

[0010] Preferably, the pin elastic limiting structure further includes a convex block A in the shape of an isosceles trapezoid, a jack, a pin hole A1, and an elastic pin bolt. The convex block A is evenly distributed around the positioning anchor seat. A jack is horizontally provided in the middle of the end of the convex block A. A pin hole A1 vertically penetrating the upper and lower sides of the convex block A is provided in the jack, and an elastic pin bolt for locking both ends of the lattice beam is installed in the pin hole A1.

[0011] Preferably, the grooves at both ends of the lattice beam are in the shape of an isosceles trapezoid corresponding to the convex block A. A pin corresponding to the jack is horizontally provided in the center of the groove, and a pin hole A2 corresponding to the pin hole A1 on the convex block A is provided in the center of the pin.

[0012] Preferably, the pin elastic limiting structure further includes a convex block B in the shape of a rectangle, a pin hole B1, and a protective cover. The convex block B is evenly distributed around the positioning anchor seat. The pin hole B1 is horizontally penetrated through the middle of both sides of the end of the convex block B, and an elastic pin bolt for locking both ends of the lattice beam is installed in the pin hole B1. The protective cover is installed on the top of the positioning anchor seat.

[0013] Preferably, the grooves at both ends of the lattice beam are in the shape of a rectangle corresponding to the convex block B. Pin holes B2 corresponding to the pin hole B1 on the convex block B are horizontally provided on both sides of the groove.

[0014] Preferably, an elastic ring is provided on the outer circle of the protective cover.

[0015] Preferably, the elastic pin bolt is made of spring steel or stainless steel.

[0016] The beneficial effects of the utility model are:

[0017] In this design, the elastic limit structure of the bolt can connect and position the anchor seat and the lattice beam more stably and firmly, avoid the influence of geological changes and geological disasters on their connection, improve the bearing capacity and seismic performance of the lattice retaining wall, and extend its service life. The device is convenient for disassembly and assembly, and has a simple structure. At the same time, the designed long anchor bolts and short anchor bolts can streamline the construction steps and save the construction material cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Without creative efforts, those skilled in the art can also obtain other drawings based on these drawings.

[0019] Figure 1 Structural diagram of the lattice retaining wall with the positioning anchor seat containing bump A of the present invention;

[0020] Figure 2 Structural diagram of the positioning anchor seat containing bump A in Embodiment 1 of the present invention;

[0021] Figure 3 Structural diagram of the positioning anchor seat, anchor bolt and lattice beam containing bump A in Embodiment 1 of the present invention;

[0022] Figure 4 Structural diagram of the positioning anchor seat containing bump B in Embodiment 2 of the present invention;

[0023] Figure 5 Structural diagram of the positioning anchor seat and lattice beam containing bump B in Embodiment 2 of the present invention;

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Positioning anchor seat; 2. Anchor bolt; 3. Lattice beam; 4. Bump A; 5. Insertion hole; 6. Pin hole A1; 7. Elastic pin; 8. Bolt; 9. Pin hole A2; 10. Bump B; 11. Pin hole B1; 12. Pin hole B2; 13. Protective cover; 14. Elastic ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0027] As Figures 1 to 5As shown, in this embodiment, the prior art has the following problems: The inventor found that the connection method between the positioning anchor block and the lattice beam in the prior art, such as a prefabricated lattice anchor retaining wall disclosed in Chinese Patent (CN219808402U), is improper and there are potential hazards;

[0028] Therefore, the inventor provides a lattice retaining wall for geological disaster engineering, including a positioning anchor seat 1, an anchor rod 2, and a lattice beam 3. The positioning anchor seats 1 are arranged in an array on the slope surface of the slope. The anchor rods 2 are buried in the slope and the ends of the anchor rods 2 are inserted into the centers of the positioning anchor seats 1. The circumferences of the positioning anchor seats 1 are elastically limitedly connected to the lattice beam 3 through a pin 8 elastic limiting structure. Grooves for cooperating with the pin 8 elastic limiting structure are arranged at both ends of the lattice beam 3. The anchor rod 2 further includes a long anchor rod 2 and a short anchor rod 2 (not shown in the figure). The long anchor rod 2 is inserted into the center of the positioning anchor seat 1 on the outer circle of the lattice retaining wall, and the short anchor rod 2 is inserted into the center of the positioning anchor seat 1 except for the outer circle of the lattice retaining wall.

[0029] The effect is that in this design, the pin 8 elastic limiting structure can connect the positioning anchor seat 1 and the lattice beam 3 more stably and firmly, avoid the influence of geological changes and geological disasters on their connection points, improve the bearing capacity and seismic performance of the lattice retaining wall, and extend its service life.

[0030] This device is convenient for disassembly and assembly, has a simple structure, and at the same time, the designed long anchor rod 2 and short anchor rod 2 can streamline the construction steps and save the construction material cost.

[0031] Such as Figures 2 to 3 As shown, the pin 8 elastic limiting structure provided in Embodiment 1 further includes an isosceles trapezoid-shaped convex block A4, a jack 5, a pin hole A16, and an elastic pin bolt 7. The convex blocks A4 are evenly distributed around the positioning anchor seat 1. A jack 5 is horizontally arranged in the middle of the end of the convex block A4. A pin hole A16 vertically penetrating the upper and lower sides of the convex block A4 is arranged in the jack 5. An elastic pin bolt 7 for locking both ends of the lattice beam 3 is installed in the pin hole A16. This structure can limit the connection point between the positioning anchor seat 1 and the lattice beam 3 in the horizontal and vertical directions, improve the stability of the lattice retaining wall, and at the same time, the elastic pin bolt 7 can extend the service life of the lattice retaining wall and relieve the vibration received at the connection point.

[0032] Furthermore, the grooves at both ends of the lattice beam 3 are in the shape of an isosceles trapezoid corresponding to the convex block A4. A pin 8 corresponding to the jack 5 is horizontally arranged in the center of the groove, and a pin hole A29 corresponding to the pin hole A16 on the convex block A4 is arranged in the center of the pin 8.

[0033] Such as Figures 4 to 5As shown in the figure, the elastic limit structure of the bolt 8 provided in the second embodiment further includes a rectangular bump B10, a pin hole B111, and a protective cover 13. The bumps B10 are evenly distributed around the positioning anchor base 1. There is a pin hole B111 horizontally penetrating through the middle of both sides of the end of the bump B10. An elastic bolt 7 that can lock both ends of the lattice beam 3 is installed in the pin hole B111. The protective cover 13 is installed on the top of the positioning anchor base 1. This structure mainly limits the connection between the positioning anchor base 1 and the lattice beam 3 in the horizontal direction, and adopts a hinge connection installation method in the vertical direction, so as to relieve and adapt to a greater degree of earthquake or ground subsidence, avoid the connection structure from breaking due to excessive vibration, improve the bearing capacity and seismic performance of the lattice retaining wall, and also extend its service life.

[0034] Furthermore, the grooves at both ends of the lattice beam 3 are rectangular corresponding to the bumps B10, and there are pin holes B212 horizontally arranged on both sides of the grooves corresponding to the pin holes B111 on the bumps B10.

[0035] Furthermore, an elastic ring 14 is arranged on the outer ring of the protective cover 13. This structure can use a durable rubber ring to protect the connection between the positioning anchor base 1 and the lattice beam 3 from entering sand and gravel, and at the same time does not affect the movement of the lattice beam 3 in the vertical upward direction when the ground vibrates.

[0036] Preferably, the material of the elastic bolt 7 is spring steel or stainless steel. Using such metals with good elasticity can extend the service life of the device.

[0037] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0038] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lattice retaining wall for use in geological disaster engineering, comprising a positioning anchor seat (1), an anchor rod (2) and a lattice beam (3), wherein the positioning anchor seat (1) is arrayed on a slope surface, the anchor rod (2) is buried in the slope and the end of the anchor rod (2) is plugged into the center of the positioning anchor seat (1), characterized in that: The positioning anchor seat (1) is connected to the lattice beam (3) in the circumferential direction via an elastic limiting structure of a latch pin (8), and grooves matching the elastic limiting structure of the latch pin (8) are provided at both ends of the lattice beam (3). The anchor rod (2) further comprises a long anchor rod (2) and a short anchor rod (2), the long anchor rod (2) being plugged into the center of the positioning anchor seat (1) of the outer ring of the lattice retaining wall, and the short anchor rod (2) being plugged into the center of the positioning anchor seat (1) outside the outer ring of the lattice retaining wall.

2. The lattice retaining wall used in geological disaster engineering according to claim 1, characterized in that: The elastic limiting structure of the latch pin (8) further comprises a protrusion A (4) in the shape of an isosceles trapezoid, a plug hole (5), a pin hole A1 (6), and an elastic pin bolt (7), wherein the protrusion A (4) is evenly distributed around the positioning anchor seat (1), a plug hole (5) is horizontally arranged in the middle of the end of the protrusion A (4), and a pin hole A1 (6) is arranged in the plug hole (5) and vertically penetrates the protrusion A (4) on the upper and lower sides, and an elastic pin bolt (7) capable of locking the two ends of the lattice beam (3) is installed in the pin hole A1 (6).

3. The lattice retaining wall used in geological disaster engineering according to claim 2, characterized in that: The grooves at both ends of the lattice beam (3) are in the shape of an isosceles trapezoid corresponding to the protrusion A (4); a latch pin (8) corresponding to the insertion hole (5) is horizontally arranged at the center of the groove; and a pin hole A2 (9) corresponding to the pin hole A1 (6) on the protrusion A (4) is arranged at the center of the latch pin (8).

4. The lattice retaining wall used in geological disaster engineering according to claim 1, characterized in that: The elastic limiting structure of the latch pin (8) further comprises a rectangular protrusion B (10), a pin hole B1 (11), and a protective cover (13). The protrusions B (10) are evenly distributed around the positioning anchor seat (1). Pin holes B1 (11) are horizontally penetrated in the middle of both sides of the end of the protrusion B (10). Elastic pins (7) that can lock the two ends of the lattice beam (3) are installed in the pin holes B1 (11). The protective cover (13) is installed on the top of the positioning anchor seat (1).

5. The lattice retaining wall used in geological disaster engineering according to claim 4, characterized in that: The grooves at both ends of the lattice beam (3) are rectangular in shape corresponding to the protrusions B (10), and pin holes B2 (12) corresponding to the pin holes B1 (11) on the protrusions B (10) are horizontally arranged on both sides of the groove.

6. The lattice retaining wall used in geological disaster engineering according to claim 4, characterized in that: An elastic ring (14) is provided on the outer ring of the protective cover (13).

7. A lattice retaining wall for use in geological disaster engineering according to any one of claims 2 to 5, characterized in that: The elastic pin (7) is made of spring steel or stainless steel.

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