Tunnel construction method adopting crank arm arch frame anchor rod installation trolley

Abstract

The invention relates to a tunnel construction method adopting a crank arm arch frame anchor rod installation trolley. The tunnel construction method aims at improving the efficiency, quality and safety of tunnel construction. The method mainly comprises the steps of equipment in-place, arch frame installation, connecting rib and mesh installation, anchor rod installation, advanced small pipe installation, equipment evacuation and the like. Through mechanical and automatic construction of the crank arm arch frame anchor rod installation trolley, rapid and accurate installation of arch frames, anchor rods, connecting ribs and meshes and construction of advanced small guide pipes are achieved. The method has the advantages of being high in construction efficiency, stable in quality, high in safety, high in adaptability, high in resource utilization rate and the like, the construction cost can be remarkably reduced, and economic benefits are improved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and in particular to a tunnel construction method using a crank arm arch frame anchor rod installation trolley. Background Art

[0002] Tunnel construction is a complex project involving geological conditions, construction environment, construction technology and other factors. With the rapid development of transportation construction, the number of tunnel projects continues to increase, and the requirements for construction efficiency, safety, quality and other aspects are becoming higher and higher.

[0003] Traditional tunnel construction methods mainly include: Drilling and blasting method: tunnels are excavated by drilling and blasting, and then support and lining are carried out. The drilling and blasting method has low construction efficiency and causes great damage to the surrounding rock, which is easy to cause safety accidents such as collapse. Tunnel boring machine method: tunnels are excavated by using tunnel boring machines, and support and lining are carried out. The tunnel boring machine method has high construction efficiency, but has high requirements for geological conditions and high equipment costs.

[0004] Arches and anchors are important components of tunnel support, and their installation quality directly affects the stability and safety of the tunnel. Traditional arch and anchor installation methods mainly include: Manual handling and installation of arches: Manually carry the arch to the designated location and then install it. This method is labor-intensive, inefficient, and has poor safety. Manual drilling and installation of anchors: Manually use a drilling rig to drill holes and then install anchors. This method has low construction efficiency and high technical requirements for operators.

[0005] Traditional tunnel construction methods have the following problems: Low construction efficiency: Traditional construction methods are mostly manual operations with low efficiency, which cannot meet the needs of modern tunnel construction. High labor intensity: Traditional construction methods require a large number of workers to carry out operations such as transportation and installation, which is labor-intensive and has a poor working environment. Poor safety: Traditional construction methods have safety hazards such as high-altitude operations and blasting operations, which can easily lead to safety accidents. Difficult quality control: Traditional construction methods cannot ensure the installation quality of arch frames and anchors, which affects the stability and safety of tunnels. Summary of the invention

[0006] The purpose of the present invention is to provide a tunnel construction method using a curved arm arch frame anchor rod installation trolley to achieve efficient, safe and convenient arch frame and anchor rod installation, improve tunnel construction quality, reduce construction costs and ensure construction safety.

[0007] The present invention is implemented by adopting the following technical scheme: a tunnel construction method using a crank arm arch anchor rod installation trolley, characterized in that it comprises the following steps: Step 1: Put the equipment in place: drive the crankshaft arch anchor installation trolley to the construction location, extend the outriggers to adjust the level, connect the cables, and start the working pump; Step 2: Arch frame installation: The left and right arch frame arms respectively clamp and lift the corresponding arch frames, the middle anchor arm connects the bolts, and the longitudinal spacing of the arch frames is adjusted according to the design requirements to complete the installation of multiple arch frames; Step 3: Installation of connecting ribs and mesh: The arch arm clamps the platform to install and weld the connecting ribs and mesh, while the anchor arm constructs the right locking foot anchor hole; Step 4: Anchor bolt installation: The anchor bolt arm constructs the system anchor bolt hole, and the left and right arch frame arms alternately install and weld the connecting ribs and mesh, as well as the system anchor bolt; Step 5: Installation of the advance small conduit: The anchor arm constructs the advance geological detection hole, and the left and right arch arms clamp the construction platform to perform grouting, installation and welding of the advance small conduit respectively; Step 6. Equipment evacuation: After the construction is completed, retract the left and right arch arms, anchor arms and corresponding tools, turn off the working pump and wireless remote control, disconnect the cable from the distribution box, start the engine, move the equipment to the special equipment storage location, shut down and turn off the battery power.

[0008] Furthermore, in step 2, the left and right arch frame arms clamp the arch frame through a clamping mechanism, and the middle anchor arm is connected to the arch frame through a bolt connection mechanism to ensure that the longitudinal spacing of the arch frame meets the design requirements.

[0009] Furthermore, in step three, the arch arm clamping platform has an automatic adjustment device that can automatically adjust the installation position according to the specifications of the connecting ribs and the mesh.

[0010] Furthermore, in step 4, the anchor arm has a multi-degree-of-freedom adjustment mechanism, which can flexibly construct system anchor holes, locking foot anchor holes and advance small catheter holes.

[0011] Furthermore, in step five, the construction of the advance geological detection hole adopts geological radar or drilling technology to obtain geological information and guide the installation of the advance small guide tube.

[0012] Furthermore, in step six, the work area is cleaned before the equipment is evacuated to ensure that the construction site is clean.

[0013] Furthermore, the entire construction process is remotely controlled via a wireless remote control, which improves construction efficiency and safety.

[0014] The tunnel construction method using a crank arm arch anchor rod installation trolley described in the present invention has the following beneficial effects: Significantly improve construction efficiency: This construction method utilizes the mechanization and automation characteristics of the curved arm arch anchor installation trolley to quickly and accurately complete the arch installation, anchor construction, connecting reinforcement and mesh installation, etc., significantly shortening the construction period. Compared with traditional manual construction methods, this method can greatly reduce the number of construction personnel and reduce labor intensity, thereby improving overall construction efficiency.

[0015] Improve construction quality and safety: The curved arm arch anchor installation trolley is equipped with a precise control system and positioning function, which can ensure the accuracy and quality of arch installation and anchor construction. Automated construction reduces the errors and uncertainties of manual operation and improves the stability and reliability of construction quality. At the same time, this method uses a wireless remote control for remote control, which reduces the safety risks of construction personnel and improves the safety of the construction process.

[0016] Strong adaptability to meet diverse construction needs: The curved arm arch anchor installation trolley has strong adaptability and can adapt to the construction needs of different geological conditions and tunnel sections. This method can flexibly adjust the construction parameters and methods according to the specific requirements of different construction scenarios to ensure the smooth progress of construction.

[0017] Optimize the construction process and reduce resource waste: This construction method achieves reasonable connection and efficient coordination of construction steps through refined construction process design. This not only reduces resource waste during the construction process, but also reduces construction costs and improves economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention 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. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a flow chart of a tunnel construction method using a crank arm arch anchor bolt installation trolley; DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, a tunnel construction method using a crank arm arch anchor installation trolley includes the following steps: Step 1: Put the equipment in place: drive the curved arm arch anchor installation trolley to the construction site, extend the legs to adjust the level, connect the cables, and start the working pump.

[0023] Step 2: Arch frame installation: The left and right arch frame arms respectively clamp and lift the corresponding arch frames; connect the middle anchor arm with bolts, and adjust the longitudinal spacing of the arch frames according to the design requirements; complete the installation of multiple arch frames.

[0024] Step three, installation of connecting reinforcement and mesh: the arch arm clamps the platform to install and weld the connecting reinforcement and mesh; at the same time, the anchor arm constructs the right locking foot anchor hole.

[0025] Step 4: Anchor installation: the anchor arm continues to construct the system anchor hole; the left arch frame arm installs and welds the left connecting reinforcement and mesh along the route of "arch top→left locking foot"; when the anchor arm is constructed to the arch top position, the right arch frame arm clamps the platform to install and weld the right connecting reinforcement and mesh along the route of "right locking foot→arch top"; when the anchor arm is constructed to the position of the left arch waist system anchor hole, the left arch frame arm retracts and the right arch frame arm continues construction; when the anchor arm is constructed to the position of the left locking foot anchor hole, the right arch frame arm completes the installation and welding of the right connecting reinforcement and mesh, and constructs the right system along the route of "right locking foot→arch top". Installation and welding of system anchor rods; after the anchor rod arm completes the construction of all locking foot anchor rod holes and system anchor rod holes, the advance small guide tube hole is constructed along the route of “left locking foot → arch top → right locking foot”; the right arch frame arm continues to install and weld the right system anchor rod along the route; when the anchor rod arm is constructed to the position beyond the left arch waist, the right anchor rod should be constructed at least to the arch top; when the anchor rod arm is constructed to the arch top, the right system anchor rod should be completed, and the right arch frame arm should be retracted. The left arch frame arm will install and weld the left system anchor rod along the route of “left locking foot → arch top” until the construction of the advance small guide tube and the left system anchor rod is completed.

[0026] Step 5: Installation of the advance small conduit: The anchor arm carries out the construction of the advance geological detection hole, and the left and right arch arms clamp the construction platform to carry out grouting, installation and welding of the advance small conduit respectively.

[0027] Step 6. Equipment evacuation: After completing the above construction steps, retract the left and right arch arms, anchor arms and corresponding tools, turn off the working pump and wireless remote control, cancel the connection between the cable and the distribution box, switch to internal combustion, start the engine, retract the cable, move the equipment to the special equipment storage location, shut down and turn off the battery power.

[0028] The above embodiments describe the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the changes and modifications made by those skilled in the art shall be within the scope of protection of the appended claims of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A tunnel construction method using a crank arm arch anchor bolt installation trolley, characterized in that: The following steps are involved: Step 1: Put the equipment in place: drive the crankshaft arch anchor installation trolley to the construction location, extend the outriggers to adjust the level, connect the cables, and start the working pump; Step 2: Arch frame installation: The left and right arch frame arms respectively clamp and lift the corresponding arch frames, the middle anchor arm connects the bolts, and the longitudinal spacing of the arch frames is adjusted according to the design requirements to complete the installation of multiple arch frames; Step 3: Installation of connecting ribs and mesh: The arch arm clamps the platform to install and weld the connecting ribs and mesh, while the anchor arm constructs the right locking foot anchor hole; Step 4: Anchor bolt installation: The anchor bolt arm constructs the system anchor bolt hole, and the left and right arch frame arms alternately install and weld the connecting ribs and mesh, as well as the system anchor bolt; Step 5: Installation of the advance small conduit: The anchor arm constructs the advance geological detection hole, and the left and right arch arms clamp the construction platform to perform grouting, installation and welding of the advance small conduit respectively; Step 6. Equipment evacuation: After the construction is completed, retract the left and right arch arms, anchor arms and corresponding tools, turn off the working pump and wireless remote control, disconnect the cable from the distribution box, start the engine, move the equipment to the special equipment storage location, shut down and turn off the battery power.

2. A tunnel construction method using a crank arm arch anchor bolt installation trolley according to claim 1, characterized in that: In the step 2, the left and right arch frame arms clamp the arch frame through a clamping mechanism, and the middle anchor arm is connected to the arch frame through a bolt connection mechanism to ensure that the longitudinal spacing of the arch frame meets the design requirements.

3. The tunnel construction method using a crank arm arch anchor bolt installation trolley according to claim 1 is characterized in that: In the step three, the arch arm clamping platform has an automatic adjustment device, which can automatically adjust the installation position according to the specifications of the connecting ribs and the mesh.

4. A tunnel construction method using a crank arm arch anchor bolt installation trolley according to claim 1, characterized in that: In the step 4, the anchor arm has a multi-degree-of-freedom adjustment mechanism, which can flexibly construct the system anchor hole, the locking foot anchor hole and the advance small catheter hole.

5. The tunnel construction method using a crank arm arch anchor bolt installation trolley according to claim 1 is characterized in that: In step 5, the construction of the advance geological detection hole adopts geological radar or drilling technology to obtain geological information and guide the installation of the advance small guide tube.

6. A tunnel construction method using a crank arm arch anchor bolt installation trolley according to claim 1, characterized in that: In the step six, the work area is cleaned before the equipment is evacuated to ensure that the construction site is clean.

7. The tunnel construction method using a crank arm arch anchor bolt installation trolley according to claim 1 is characterized in that: The entire construction process is remotely controlled through a wireless remote control to improve construction efficiency and safety.

Images