Rock anchor structure for cable hoisting system

Abstract

The utility model discloses a rock anchor structure for a cable hoisting system, which is arranged on a mountain and comprises an anchoring foundation, an anchoring seat and a bearing seat, the side wall, facing the construction area, of the mountain is blasted to form a platform; the anchoring foundation is poured on the platform and attached to the side wall, opposite to the platform, of the mountain. The anchoring base comprises a base body and a prestressed cable, the base body is fixed to the side wall of the anchoring foundation to be connected with the traction cable, one end of the prestressed cable penetrates through the anchoring foundation and is anchored in a mountain, and the other end of the prestressed cable is anchored to the base body. The bearing seat is anchored on the side wall of the anchoring foundation and located above the anchoring seat to be connected with the main cable. According to the utility model, the mountain is blasted to form the platform, the anchoring foundation is poured on the platform to form the mounting foundation of the cable hoisting system, the anchoring seat and the bearing seat are anchored with the mountain through the prestressed cable and the anchor cable, and the traction cable and the main cable are respectively connected through the anchoring seat and the bearing seat, so that the construction cost is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and more specifically to a rock anchor structure for cable hoisting systems. Background Technology

[0002] With the rapid development of the national railway network, heavy-haul railways have increasingly greater crossing capabilities. When crossing major rivers and canyons, cable-stayed gantry cranes are often used without supports. This method is primarily applied to the installation of arch rib segments in arch bridges. Later, with the proliferation of long-span suspension bridges in my country, cable-stayed gantry cranes have been applied to the hoisting of stiffening girders in suspension bridges. After lifting a heavy load, a cable-stayed gantry crane can move the load along the entire span of the mid-span, with no restrictions on the lifting point location; lateral movement of the lifting point can be achieved via sliding beams. Its extremely fast erection speed and low cost have made it a feasible solution for the hoisting of long-span arch bridges, suspension bridges, and other bridge types.

[0003] When using cable-stayed installation in high mountain and canyon areas, if the river is navigable or navigable, steel beams can be lifted from the middle of the span to install the steel beam segments. If the river is not navigable or navigable, or if lifting from the middle of the river is uneconomical, lifting from a construction platform on one bank can be considered.

[0004] In cable-stayed installation systems, towers are typically used as installation supports for the cable-stayed installation system on opposite banks of a river. However, when the construction site is limited, such as when the riverbank is a mountain, an anchoring system needs to be installed on the mountain to ensure the installation of the cable-stayed installation system.

[0005] Therefore, how to develop an anchoring structure for cable hoisting systems in mountainous construction sites to ensure the normal operation of the cable hoisting system while reducing construction costs is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the present invention provides a rock anchor structure for a cable hoisting system, which aims to provide an anchoring structure for a cable hoisting system at a construction site in a high mountain, and to cooperate with the tower on the opposite bank to realize the installation of the cable hoisting system.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A rock anchor structure for a cable hoisting system, installed on a mountain, includes an anchoring foundation, an anchoring seat, and a bearing seat;

[0009] The sidewall of the mountain facing the construction area is blasted to form a platform; the anchor foundation is poured on the platform and fits against the sidewall of the mountain opposite to the platform; the anchor seat includes a seat body and a prestressed cable, the seat body is fixed to the sidewall of the anchor foundation to connect the traction cable, one end of the prestressed cable passes through the anchor foundation and is anchored in the mountain, and the other end is anchored to the seat body.

[0010] The bearing seat is anchored to the side wall of the anchoring foundation and located above the anchoring seat to connect the main cable.

[0011] The beneficial effects of this utility model are that by blasting the mountain to form a platform, and then pouring an anchor foundation on the platform to form the installation foundation for the cable hoisting system, the traction cable and the main cable are connected by the anchor seat and the bearing seat respectively. This utility model enables the installation of the cable hoisting system in high-altitude conditions at the construction site, without the need to erect a tower, making reasonable use of the natural environment to assist construction, reducing construction costs and improving construction efficiency.

[0012] Preferably, the anchor body includes a fixed seat, a connecting seat, and a traction seat; the fixed seat is arranged parallel to the width direction of the bridge and symmetrically fixed to the side wall of the anchor foundation; the connecting seat and the traction seat are symmetrically fixed on both sides of the fixed seat, and the connecting seat and the traction seat are respectively anchored to the side wall of the anchor foundation through the prestressed cable; a traction wheel is rotatably connected to the end of the traction seat away from the fixed seat, and the traction cable is wound on the traction wheel. The symmetrical arrangement of the connecting seat and the traction seat forms a cross-shaped anchor seat. The anchor seat can be fixed to the side wall of the anchor foundation by anchoring the connecting seat and the traction seat to the mountain through the prestressed cable, and the traction cable is connected to the traction wheel on the traction seat.

[0013] Preferably, there are multiple connecting seats and traction seats, evenly distributed along the length of the fixed seat. All connecting seats and traction seats are anchored to the mountain via prestressed cables, improving the anchoring performance and tensile strength of the anchoring seats. Simultaneously, the traction wheels on the multiple traction seats can connect to multiple traction cables, meeting the construction needs of cable hoisting.

[0014] Preferably, the fixing seat is welded to or integrally formed with the connecting seat and the traction seat. This ensures the overall performance and structural rigidity of the anchoring seat.

[0015] Preferably, a steel plate is pre-embedded in the sidewall of the anchoring foundation, and the fixing seat is welded and fixed to the steel plate relative to the sidewall of the mountain. Welding the anchoring seat to the pre-embedded steel plate improves its anchoring performance.

[0016] Preferably, the system further includes an anchor cable, one end of which passes through the anchoring foundation and is anchored within the mountain, and the other end is anchored to the bearing seat; a lifting ring is fixed on the bearing seat to thread the main cable. The bearing seat is anchored within the mountain by the anchor cable, thereby improving its tensile strength.

[0017] Preferably, the anchoring foundation is a reinforced concrete foundation, and the reinforcing bars within the anchoring foundation are embedded in the mountain body. This ensures that the anchoring foundation and the mountain body form an integral structure, guaranteeing the overall stability of the rock anchor structure and sufficient tensile strength, thus ensuring the effective execution of cable hoisting.

[0018] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a rock anchor structure for a cable hoisting system. By blasting a mountain to form a platform, an anchoring foundation is poured on the platform to form the installation foundation of the cable hoisting system. The anchoring seat and the bearing seat are anchored to the mountain through prestressed cables and anchor cables. The traction cable and the main cable are connected through the anchoring seat and the bearing seat respectively. This utility model can realize the installation of the cable hoisting system in the case of high mountain conditions at the construction site, without the need to erect a tower, making reasonable use of the natural environment to assist construction, reducing construction costs and improving construction efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 A side view of the rock anchor structure provided by this utility model;

[0021] Figure 2 This is a front view of the rock anchor structure provided by this utility model.

[0022] in,

[0023] 1-Mountain; 11-Platform;

[0024] 2-Anchor seat; 21-Fixed seat; 22-Connecting seat; 23-Traction seat; 24-Traction wheel; 25-Prestressed cable; 3-Bearing seat; 31-Anchor cable. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] See appendix Figures 1-2 This utility model embodiment discloses a rock anchor structure for a cable hoisting system, which is set on a mountain 1 and includes an anchoring foundation 4, an anchoring seat 2 and a bearing seat 3.

[0027] The side wall of the mountain 1 facing the construction area is blasted to form a platform 11; the anchor foundation 4 is poured on the platform 11 and fits against the side wall of the mountain 1 opposite to the platform 11; the anchor seat 2 includes a seat body and a prestressed cable 25. The seat body is fixed to the side wall of the anchor foundation 4 to connect the traction cable. One end of the prestressed cable 25 passes through the anchor foundation 4 and is anchored in the mountain 1, and the other end is anchored to the seat body.

[0028] The bearing seat 3 is anchored to the side wall of the anchor foundation 4 and located above the anchor seat 2 to connect the main cable.

[0029] like Figure 1 As shown, the anchoring foundation is L-shaped, with a vertical platform and a horizontal platform. The vertical platform fits against the side wall of the mountain and serves as the installation platform for the anchoring seat and the bearing seat. The horizontal platform serves as a construction platform to facilitate the entry of workers for construction.

[0030] To further optimize the above technical solution and improve the connection performance between the anchor foundation and the mountain, the anchor foundation 4 is a reinforced concrete foundation, and the steel bars in the anchor foundation 4 are embedded in the mountain 1.

[0031] Before the anchor foundation is poured, rebar can be inserted into the mountain and welded to the rebar in the anchor foundation. This will form an integral rebar skeleton with the rebar inserted into the mountain. The mountain will then be used as a template for the anchor foundation. After the concrete is poured, the anchor foundation and the mountain will be anchored together as an integral structure.

[0032] To further optimize the above technical solution and improve the overall structural strength of the anchoring foundation, the anchoring foundation concrete is poured using C50 or higher grade concrete.

[0033] In this embodiment, the seat body includes a fixed seat 21, a connecting seat 22, and a traction seat 23; the fixed seat 21 is arranged with its axis parallel to the width direction of the bridge and is symmetrically fixed to the side wall of the anchor foundation 4; the connecting seat 22 and the traction seat 23 are respectively symmetrically fixed on both sides of the fixed seat 21, and the connecting seat 22 and the traction seat 23 are respectively anchored to the side wall of the anchor foundation 4 through prestressed cables 25; the end of the traction seat 23 away from the fixed seat 21 is rotatably connected to a traction wheel 24, and a traction cable is wound on the traction wheel 24.

[0034] The fixed seat, connecting seat, and traction seat form a cross-shaped base. The connecting seat is located above the fixed seat, and the traction seat is located below the fixed seat. Anchor holes are drilled in the anchor foundation corresponding to the positions of the connecting seat and the traction seat. The anchor holes are drilled into the mountain body and inclined downward at 10° relative to the horizontal plane. One end of the prestressed cable is inserted into the anchor hole in the mountain body from the anchor foundation, and the other end is anchored to the connecting seat or traction seat through an anchor.

[0035] In actual construction, a sleeve is pre-installed in the anchor hole for grouting of the prestressed cable to improve its anchoring performance. The connecting seat and the traction seat are fastened to one side of the anchor foundation by the prestressed cable, and the traction seat is connected to the traction cable through the traction wheel.

[0036] To further optimize the above technical solution and meet the needs of cable hoisting, the number of connecting seats 22 and traction seats 23 is multiple and they are evenly distributed along the length direction of the fixed seat 21.

[0037] In some other specific embodiments, to improve the overall performance of the anchorage, the fixing seat 21 is welded to the connecting seat 22 and the traction seat 23 or integrally formed.

[0038] In other specific embodiments, to ensure the fixing effect between the fixing seat and the anchoring foundation, a steel plate is pre-embedded in the side wall of the anchoring foundation 4, and the fixing seat 21 is welded and fixed to the steel plate relative to the side wall of the mountain 1.

[0039] To further optimize the above technical solution and improve the anchoring performance of the bearing seat, an anchor cable 31 is also included. One end of the anchor cable 31 passes through the anchoring foundation 4 and is anchored within the mountain body 1, while the other end is anchored to the bearing seat 3. A lifting ring is fixed on the bearing seat 3 for threading the main cable. The installation method of the anchor cable is the same as that of the prestressed cable, and will not be described here.

[0040] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rock anchoring structure for a cable hoisting system, arranged on a mountain mass (1), characterized in that, The anchor base (4), the anchor seat (2) and the bearing seat (3) are included. The side wall of the mountain (1) is blasted to form a platform (11) towards a construction area; the anchor base (4) is cast on the platform (11) and is attached to the side wall of the mountain (1) opposite to the platform (11); the anchor seat (2) includes a seat body and a prestressed cable (25), the seat body is fixed to the side wall of the anchor base (4) to connect a traction cable, one end of the prestressed cable (25) penetrates through the anchor base (4) and is anchored in the mountain (1), and the other end is anchored to the seat body. The bearing seat (3) is anchored to the side wall of the anchor base (4) and is located above the anchor seat (2) to connect a main cable.

2. A rock anchor structure for a cable hoisting system according to claim 1, characterized in that The seat body includes a fixed seat (21), a connecting seat (22) and a traction seat (23); the fixed seat (21) is arranged in parallel with the axis direction of the bridge width and is symmetrically fixed to the side wall of the anchor base (4); the connecting seat (22) and the traction seat (23) are symmetrically fixed to the two sides of the fixed seat (21) respectively, the connecting seat (22) and the traction seat (23) are anchored to the side wall of the anchor base (4) through the prestressed cable (25) respectively; one end of the traction seat (23) away from the fixed seat (21) is rotationally connected with a traction wheel (24), and the traction wheel (24) is wound with the traction cable.

3. A rock anchor structure for a cable hoisting system according to claim 2, characterized in that The number of the connecting seat (22) and the traction seat (23) is multiple and is uniformly distributed along the length direction of the fixed seat (21).

4. A rock anchor structure for a cable hoisting system according to claim 3, characterized in that The fixed seat (21) is welded and fixed with the connecting seat (22) and the traction seat (23) or is integrally formed.

5. A rock anchor structure for cable hoisting systems according to claim 2, characterized in that, The side wall of the anchor base (4) is pre-buried with a steel plate, and the fixed seat (21) is welded and fixed with the steel plate opposite to the side wall of the mountain (1).

6. A rock anchor structure for cable hoisting systems according to claim 1, characterized in that, An anchor cable (31) is further included, one end of the anchor cable (31) penetrates through the anchor base (4) and is anchored in the mountain (1), and the other end is anchored to the bearing seat (3); a lifting ring is fixed on the bearing seat (3) to pass through the main cable.

7. A rock anchor structure for cable hoisting systems according to claim 1, characterized in that, The anchor base (4) is a reinforced concrete base, and the steel bars in the anchor base (4) are embedded in the mountain (1).

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