A prefabricated lattice beam slope protection structure and construction method thereof

Abstract

The present invention discloses a prefabricated assembled lattice beam slope protection structure and a construction method thereof, belonging to the technical field of construction engineering. The lattice beam slope protection structure is composed of a plurality of prefabricated reinforced concrete lattice beams and connecting plates, and the prefabricated reinforced concrete lattice beams are divided into prefabricated longitudinal beams and prefabricated transverse beams. The angle between the longitudinal beam and the connecting plate is a right angle, the bottom of the longitudinal beam is an integrated connecting plate, the top of the longitudinal beam has an integrated insert plate, the bottom of the connecting plate is designed with a longitudinal alignment groove that matches the insert plate, and the longitudinal beams are combined and connected with a transverse beam at the connection point; the transverse beam is designed with grooves and protrusions corresponding to the connection point at the left and right ends; the present invention adopts a cross connection structure for connection at the connection node, cooperates with the limit end at the end, prevents the longitudinal beam and the transverse beam from shifting after assembly, and ensures the lateral and longitudinal stability during connection to ensure the slope protection effect.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering, and in particular relates to a prefabricated assembled lattice beam slope protection structure and a construction method thereof. Background Art

[0002] Lattice reinforcement technology is a slope reinforcement technology that uses mortar-laid blocks, cast-in-place reinforced concrete or precast prestressed concrete to protect the slope surface and fix it with anchor rods or cables.

[0003] At present, most of the lattice beam slope protection is an integrated cast structure. The cast structure lattice beam slope protection needs to be constructed on site, which takes a long time and is difficult.

[0004] However, in the existing patents for prefabricated assembled lattice beam slope protection, only the prefabrication and assembly are considered. If the prefabrication and assembly are realized, the stability will inevitably be reduced, especially the single structure of the connection, which greatly reduces the stability of the connection. For this reason, we propose a prefabricated assembled lattice beam slope protection structure and a construction method thereof. Summary of the invention

[0005] The object of the present invention is to provide a prefabricated assembled lattice beam slope protection structure and a construction method thereof to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a prefabricated assembled lattice beam slope protection structure, the lattice beam slope protection structure is composed of a plurality of longitudinal beams and connecting plates, the angle between the longitudinal beams and the connecting plates is a right angle, the bottom of the longitudinal beam is integrally connected with the connecting plate, the top of the longitudinal beam has an integral insertion plate, the bottom of the connecting plate is designed with a longitudinal alignment groove that matches the insertion plate, and the connection between the longitudinal beams is combined and connected with a cross beam.

[0007] Furthermore, both ends of the cross beam have reverse protrusions, both ends of the cross beam are provided with transverse alignment grooves, and the left and right ends of the cross beam are reserved with inter-beam connecting steel bars connected to the other side cross beam.

[0008] Furthermore, concrete is poured through reserved holes at the connection between the longitudinal beam and the transverse beam to form cross connectors on the front and rear sides, and the four ends of the cross connector all have limiting ends, and the cross-section of the limiting end is a predetermined shape.

[0009] Furthermore, the predetermined shape is a horizontal isosceles trapezoid.

[0010] Furthermore, anchor holes are reserved in the middle of the cross connector and the connecting plate, and the anchor holes are used to fix the anchor rods.

[0011] Furthermore, a through hole connecting the two sides is reserved on the inner side of the longitudinal alignment groove.

[0012] Furthermore, a prefabricated assembled lattice beam slope protection structure and a construction method thereof include the following steps:

[0013] A. After the prefabricated parts are transported to the site after being prefabricated in the prefabrication factory, they are measured and positioned according to the construction drawings, and the slopes are leveled and anchor rods or cables are constructed;

[0014] B. First, hoist the longitudinal beams and assemble the adjacent longitudinal beams. Specifically, the insertion plate at the top of the lower longitudinal beam is inserted into the inner side of the longitudinal alignment groove of the bottom connecting plate of the upper longitudinal beam;

[0015] C. The cross beams on both sides are respectively inserted into the left and right sides of the connection plate, and the cross beams on the left and right sides are connected by connecting steel bars between the beams. The connection method of the steel bars can be binding, lap joint, welding or mechanical sleeve;

[0016] D. Tension and lock the anchor rod or anchor cable;

[0017] E. Pour concrete through the reserved holes at the connection between the longitudinal beam and the transverse beam to form a cross connector on the front and rear sides of the connecting plate. The cross connector is formed into a cross connector with a limit end according to the shape of the through hole and the transverse alignment groove;

[0018] F. When the grout of the cross connector at the connection node reaches a certain strength, the anchor can be tensioned by the anchor tensioning machine. After the tensioning is completed, the anchor is sealed;

[0019] G. Repeat the above steps and assemble in order.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This design uses a cross connection structure at the connection node, and cooperates with the limit end at the end to prevent the longitudinal beam and cross beam from shifting after assembly, and ensures the lateral and longitudinal stability during connection to ensure the slope protection effect.

[0022] 2. The cross connectors at the connection nodes are formed by pouring concrete. On the one hand, it reduces the difficulty of assembly, reduces the accuracy of prefabrication, and improves the fault tolerance rate. At the same time, the connection is fixed by pouring. Compared with fully prefabricated assembly, it can increase the fit between components and increase stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0024] Figure 1 A schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the enlarged structure of the A part of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the anchor rod of the present invention;

[0028] In the figure: 11, longitudinal beam; 12, connecting plate; 13, insert plate; 14, longitudinal alignment groove; 15, through hole; 21, cross beam; 22, transverse alignment groove; 23, protrusion; 24, connecting steel bars between beams; 31, cross connector; 32, limit end; 41, anchor hole; 42, anchor rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 invention.

[0031] Reference Figure 1-Figure 4 The present invention proposes a technical solution: a prefabricated assembled lattice beam slope protection structure, the lattice beam slope protection structure is composed of a plurality of longitudinal beams 11 and connecting plates 12, the angle between the longitudinal beam 11 and the connecting plate 12 is a right angle, the bottom of the longitudinal beam 11 is integrally connected with the connecting plate 12, the top of the longitudinal beam 11 is provided with an integral insertion plate 13, the bottom of the connecting plate 12 is provided with a longitudinal alignment groove 14 that matches the insertion plate 13, the connection between the longitudinal beams 11 and the longitudinal beams 11 is combined and connected with a cross beam 21, wherein the two ends of the cross beam 21 have reverse protrusions 23, and the two ends of the cross beam 21 are provided with transverse alignment grooves 22, and the inner side of the cross beam 21 on one side is provided with a beam connecting steel bar 24 connected to the cross beam 21 on the other side.

[0032] Specifically, the connection between the longitudinal beam 11 and the cross beam 21 is formed by pouring concrete on the front and rear sides. The four ends of the cross connector 31 have a limit end 32. The cross section of the limit end 32 is in a predetermined shape, which is a horizontal isosceles trapezoid. The hypotenuse can prevent displacement. The cross connector 31 structure is used for connection at the connection, and the limit end 32 at the end is used to prevent the longitudinal beam 11 and the cross beam 21 from shifting after assembly. The lateral and longitudinal stability is guaranteed during the connection. At the same time, the steel bars 24 are connected between the beams to increase the tensile strength and ensure the slope protection effect.

[0033] Specifically, anchor holes 41 are reserved in the middle of the cross connector 31 and the connecting plate 12. The anchor holes 41 are used to fix the anchor rods 42. The cross connector 31 at the connection is formed by pouring concrete through the reserved holes. On the one hand, it reduces the difficulty of assembly, reduces the accuracy of prefabrication, and improves the fault tolerance rate. At the same time, the connection is fixed by pouring. Compared with the completely prefabricated assembly, it can increase the fit between the prefabricated components, that is, increase the stability.

[0034] Specifically, a through hole 15 communicating with both sides is reserved inside the longitudinal alignment groove 14 .

[0035] This embodiment also provides a prefabricated assembled lattice beam slope protection structure and a construction method thereof, comprising the following steps:

[0036] S1. After the prefabricated parts are transported to the site after being prefabricated in the prefabrication factory, they are measured and positioned according to the construction drawing requirements, and the slope is leveled to construct anchor rods 42 or anchor cables;

[0037] S2, first hoist the longitudinal beams 11, and assemble the adjacent longitudinal beams 11, specifically, insert the insertion plate 13 on the top of the lower longitudinal beam 11 into the inner side of the longitudinal alignment groove 14 of the bottom connecting plate 12 of the upper longitudinal beam 11;

[0038] S3, the two side beams 21 are respectively inserted into the left and right sides of the connecting plate 12, and the left and right side beams are connected by connecting steel bars 24 between the beams. The connection method of the steel bars 24 can be binding overlap or welding or mechanical sleeve and other methods;

[0039] S4, tensioning and locking the anchor rod or anchor cable;

[0040] S5. Concrete is poured through the reserved holes at the connection between the longitudinal beam 11 and the cross beam 21 to form a cross connector 31 on the front and rear sides of the connecting plate 12. The cross connector 31 is formed into a cross connector 31 with a limit end 32 through the shape of the through hole 15 and the transverse alignment groove 22;

[0041] S6. When the grout at the cross connection of the node to be connected reaches a certain strength, the anchor can be tensioned by an anchor tensioning machine. After the tensioning is completed, the anchor is sealed;

[0042] S7, repeat the above steps, assemble in order, and finally complete the assembly of the entire slope protection structure. Figure 1 shown.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A prefabricated lattice beam slope protection structure, characterized in that: The lattice beam slope protection structure is composed of a plurality of longitudinal beams (11) and a connecting plate (12), wherein the connecting plate (12) is located on the extension line of the longitudinal beam (11), the bottom of the longitudinal beam (11) is integrally connected with the connecting plate (12), the top of the longitudinal beam (11) is provided with an integral insertion plate (13), the side of the longitudinal beam (11) is provided with a longitudinal alignment groove (14), and the connection between the longitudinal beams (11) and the longitudinal beams (11) is combined and connected with a cross beam (21); the connection between the longitudinal beams (11) and the cross beams (21) is formed by pouring concrete to form cross connectors (31) on the front and rear sides, and the four ends of the cross connector (31) are provided with limit ends (32), and the cross section of the limit end (32) is in a predetermined shape; concrete is poured through a reserved hole at the connection between the longitudinal beam (11) and the cross beam (21), and the concrete forms the cross connector (31) on the front and rear sides of the connecting plate (12).

2. The prefabricated assembled lattice beam slope protection structure according to claim 1, characterized in that: The two ends of the cross beam (21) have opposite protrusions (23), and the two ends of the cross beam (21) are both provided with transverse alignment grooves (22). The inner side of one side cross beam (21) is provided with an inter-beam connecting steel bar (24) connected to the other side cross beam (21).

3. The prefabricated assembled lattice beam slope protection structure according to claim 1, characterized in that: The predetermined shape is a horizontal isosceles trapezoid.

4. The prefabricated assembled lattice beam slope protection structure according to claim 1, characterized in that: Anchor holes (41) are reserved in the middle of the cross connector (31) and the connecting plate (12), and the reserved anchor holes (41) are used for fixing anchor rods (42).

5. The prefabricated assembled lattice beam slope protection structure according to claim 1, characterized in that: A through hole (15) communicating with both sides is reserved inside the longitudinal alignment groove (14).

6. A construction method of a prefabricated lattice beam slope protection structure, characterized in that: The steps include: A. After the prefabricated parts are transported to the site after being prefabricated in the prefabrication factory, they are measured and positioned according to the construction drawing requirements, and the slope is leveled and anchor rods (42) or anchor cables are constructed; B. First, the longitudinal beams (11) are hoisted and the adjacent longitudinal beams (11) are assembled, specifically, the insertion plate (13) at the top of the lower longitudinal beam (11) is inserted into the inner side of the longitudinal alignment groove (14) of the bottom connecting plate (12) of the upper longitudinal beam (11); C. The two side cross beams (21) are respectively inserted into the left and right sides of the connection plate (12), and the cross beams on the left and right sides are connected by connecting steel bars (24) between the beams. The connection method of the steel bars (24) can be binding overlap, welding, or mechanical sleeves; D. tensioning and locking the anchor rod (42) or the anchor cable; E. Concrete is poured through the reserved holes at the connection between the longitudinal beam (11) and the cross beam (21), and a cross connector (31) is formed on the front and rear sides of the connection plate (12), wherein the cross connector (31) is formed into a cross connector (31) having a limit end (32) according to the shape of the through hole (15) and the transverse alignment groove (22); F. When the grout of the cross connection parts at the connection node reaches a certain strength, the anchor can be tensioned by the anchor tensioning machine. After the tensioning is completed, the anchor is sealed; G. Repeat the above steps and assemble in order.

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