Arch anchor separation type arch drilling anchor injection combined operation trolley and construction method

Abstract

This invention relates to a tunnel construction equipment field, specifically an arch-anchor separation type arch drilling-anchor grouting combined operation trolley and construction method. The operation trolley includes a vehicle body, a central boom, and two side booms. The mounting ends of the central boom and the two side booms are arranged in an isosceles triangle layout, and the central boom and side booms are rotatably mounted on the upper surface of the middle part of the vehicle body. A grouting system is installed inside the middle part of the vehicle body, and two extension legs are provided at the rear end of the vehicle body. A first slewing frame is rotatably mounted on the outer side of the free end of the central boom, and a first arch frame grab and a drilling mechanism are respectively installed at both ends of the first slewing frame. A second slewing frame is rotatably mounted on the upper side of the free end of the side booms, and a second arch frame grab and an anchor bolt installation mechanism away from the central boom are respectively installed on both sides of the second slewing frame. A work basket is provided on one side of the second arch frame grab. This operation trolley and construction method can realize the combined operation of four major processes: drilling, anchor bolt installation, grouting, and arch frame erection, improving efficiency and operational safety.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction equipment, and in particular to a combined arch drilling and anchoring operation trolley and construction method with separate arch and anchor types. Background Technology

[0002] As is well known, after tunnel excavation, a stable support system needs to be quickly established to prevent deformation or collapse of the surrounding rock mass. Traditional tunnel support operations usually rely on multiple pieces of equipment working alternately, with frequent process switching, requiring a large amount of manpower and posing high safety risks. As shown in the double rock drilling arch anchor trolley disclosed in Chinese Patent No. CN216894470U, although it is equipped with multiple robotic arms for construction, it can only perform rock drilling. In view of the problems of existing tunnel construction equipment having single functions, frequent process switching, low operating efficiency, and poor coordination of the four major processes of drilling, arching, anchoring, and grouting, it is necessary to design a trolley that is suitable for joint operations and high-efficiency construction. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art and solve the existing technical problems, the present invention discloses an arch-anchor separation type arch drilling and anchoring combined operation trolley, which can realize the combined operation of four major processes: drilling, anchor installation, grouting and arch frame erection, thereby improving efficiency and operational safety.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A combined arch drilling and anchoring grouting trolley with separate arch and anchor components includes a vehicle body, a central boom, and two symmetrically arranged side booms. The mounting ends of the central boom and the two side booms are arranged in an isosceles triangle. The central boom and the side booms are rotatably mounted on the upper surface of the middle part of the vehicle body via a first slewing bearing and a second slewing bearing, respectively. A grouting system is provided in the middle part of the vehicle body. Two telescopic and adjustable extension legs are symmetrically arranged on both sides of the rear end of the vehicle body. A first slewing frame is rotatably mounted on the outer side of the free end of the central boom. A first arch frame grab and a drilling mechanism are respectively installed at both ends of the first slewing frame. A second slewing frame is rotatably mounted on the upper side of the free end of the side booms. A second arch frame grab and an anchor bolt installation mechanism away from the central boom are respectively installed on both sides of the second slewing frame. A work basket is provided on one side of the second arch frame grab.

[0006] Furthermore, the intermediate boom includes a first folding arm and a first telescopic arm, with the two ends of the first folding arm respectively hinged to one end of the first slewing bearing and one end of the first telescopic arm; the first arch gripper includes a swing arm hinged to the corresponding end of the first slewing frame, and a robotic arm mounted on the free end of the swing arm.

[0007] Furthermore, the drilling mechanism includes a swing frame, a sliding frame, an intermediate support rod, and end support rods and a drilling drive motor located at both ends of the sliding frame. One end of the swing frame is hinged to the corresponding end of the first rotating frame. The sliding frame is slidably mounted on the swing frame in the same direction. The end support rods are fixed to the front end of the sliding frame away from the first arch frame gripper. The intermediate support rods and the drilling drive motor are slidably mounted on the sliding frame via a front slider base and a rear slider base, respectively. A drilling pressure cylinder is connected between the front slider base and the rear end of the sliding frame. A directional pulley is installed on the front slider base. One end of a steel wire rope is connected to the rear slider base. The other end of the steel wire rope passes around the directional pulley and is fixed to the rear end of the sliding frame.

[0008] Furthermore, the side boom includes a second telescopic arm and a second folding arm, with the two ends of the second telescopic arm respectively hinged to one end of the second slewing bearing and the second folding arm.

[0009] Furthermore, the anchor bolt installation mechanism includes a guide rail frame fixed to the second rotating frame, a sliding support frame slidably mounted on the guide rail frame, an anchor bolt pressing assembly slidably mounted on the sliding support frame, and a rotating feeding rod chamber swaying on one side of the sliding support frame.

[0010] Furthermore, the second slewing bearing seat includes a sleeve fixed to the vehicle body, and a circular seat plate is rotatably connected to the top of the sleeve via the slewing bearing. An A-type support with clearance space is fixed to the upper surface of the circular seat plate.

[0011] Furthermore, the grouting system includes a main distribution pipe, a pressurized feeding device, and two slurry mixing devices located inside the vehicle body. A pipe joint is fixed in the middle of the surface of the circular base plate. The two slurry mixing devices are symmetrically arranged below the two second slewing bearing seats, and the top mixing motors of the two slurry mixing devices are hidden in the corresponding sleeves. The discharge ports of the two slurry mixing devices are connected to the pressurized feeding device through discharge pipes with first valves. The outlet of the pressurized feeding device is connected to the middle of the main distribution pipe. Both ends of the main distribution pipe are connected to the corresponding pipe joints through hoses. A pressure gauge is installed on the side of the pipe joint, and two meshing toothed rings are fixedly fitted on the two circular base plates.

[0012] Furthermore, the middle pipe wall of the main distribution pipe is connected to a cleaning pipe with a second valve, and the bottom of the slurry mixing device is provided with a drain pipe with a third valve.

[0013] A construction method for an arch-anchor separation type arch drilling and anchoring combined operation trolley includes the following steps: S1. After driving the vehicle to the center of the tunnel construction position, first extend the outriggers for ground support and positioning; S2. Keep the two side booms retracted, unfold the middle boom, and by adjusting the degrees of freedom, use the drilling mechanism to drill holes in a fan-shaped radial pattern at intervals on the tunnel roof, making multiple holes symmetrical on both sides of the tunnel; S3. Retract the middle boom, unfold the two side booms, and simultaneously install anchor bolts in the symmetrical holes on both sides of the tunnel. After a set of symmetrical holes is installed, use the grouting system to grout the corresponding anchor bolts synchronously until all the anchor bolts in the holes are completely installed and fixed; S4. Unfold the middle boom and the two side booms, and use the first arch frame grabber and the second arch frame grabber to perform arch frame erection work. Construction personnel can stand on the work basket to complete the installation between the arch frame and the anchor bolts.

[0014] By employing the technical solution described above, the present invention has the following beneficial effects:

[0015] The arch-anchor separation type arch drilling and anchoring combined operation trolley disclosed in this invention adopts an integrated design of the trailer body and multi-position boom system. The boom system has three isosceles triangular distributed working booms. The middle boom integrates drilling and arch erection grabbers, while the two side booms integrate anchor bolt installation and arch erection grabbers. In addition to the existing walking function, the trailer body is also designed with grouting mixing and hydraulically adjustable extension legs. Through arch-anchor separation and three-arm coordinated control, combined with construction methods, the four major processes of drilling, anchor bolt installation, grouting, and arch erection can be carried out simultaneously and jointly, which greatly improves the efficiency and safety of tunnel initial support construction, simplifies equipment configuration, reduces construction costs, and is suitable for mechanized rapid construction of various tunnels. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the invention in its unfolded state;

[0017] Figure 2 This is a schematic diagram of the installation and connection structure of the intermediate boom;

[0018] Figure 3 This is a schematic diagram of the installation and connection structure of the side boom;

[0019] Figure 4 This is a schematic diagram of the installation and connection structure of the rotary feeding boom chamber and the anchor bolt pressing assembly;

[0020] Figure 5 This is a schematic diagram of the grouting system.

[0021] Figure 6 This is a three-dimensional schematic diagram of the retracted state of the present invention.

[0022] In the diagram: 1. Vehicle body; 2. Grouting system; 201. Grout mixing device; 202. Pressurized feeding device; 203. Main distribution pipe; 204. Discharge pipe; 205. Pipe joint; 206. Hose; 207. Cleaning pipeline; 3. First arch frame gripper; 301. Swing arm; 302. Robotic arm; 4. Intermediate boom; 401. First folding arm; 402. First telescopic arm; 5. Second slewing bearing seat; 501. Sleeve; 502. Circular seat plate; 503. A-type support; 504. Toothed ring; 6. Side boom; 601. 602. Second telescopic boom; 7. Second folding boom; 8. Anchor bolt installation mechanism; 701. Guide rail frame; 702. Sliding support frame; 703. Rotary feeding boom compartment; 704. Anchor bolt pressing assembly; 8. Drilling mechanism; 801. Swing frame; 802. Sliding frame; 803. Drilling drive motor; 804. Intermediate support rod; 805. End support rod; 806. Drilling cylinder; 9. Second arch frame gripper; 10. Extension outrigger; 11. Working basket; 12. First slewing bearing seat; 13. First slewing frame; 14. Second slewing frame. Detailed Implementation

[0023] The technical solution of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the accompanying drawings of the present invention for the convenience of describing the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation. Example 1:

[0024] Combined with appendix Figure 1-4 The aforementioned arch-anchor separation type arch drilling and anchoring combined operation trolley includes a vehicle body 1, a central boom 4, and two symmetrically arranged side booms 6. The central boom 4 and side booms 6 themselves have hydraulically controlled telescopic and folding functions to meet the requirements for drilling and anchor bolt installation angle adjustment and height correspondence on the tunnel arch surface. The installation ends of the central boom 4 and the two side booms 6 are arranged in an isosceles triangle layout, specifically with the central boom 4 closer to the rear end of the vehicle body 1. This reasonable layout makes the weight distribution more even, the folding more compact, and prevents tipping due to unbalanced forces during operation. Furthermore, the central boom 4 and side booms 6 are respectively... The slewing bearing seat 12 and the second slewing bearing seat 5 are rotatably mounted on the upper surface of the middle part of the vehicle body 1, which facilitates rotation and adjustment of the orientation, thereby preventing operational interference. The middle part of the vehicle body 1 is equipped with a grouting system 2, which integrates the grout mixing, storage and conveying unit into the vehicle body 1. This not only increases the vehicle weight and makes it more stable, but also facilitates the direct connection of the grout output end to the anchor end through the external pipe after the anchor is installed, thereby quickly completing the grouting process. Of course, in order to further ensure the operational stability of the vehicle body 1, at least two hydraulically controllable telescopic outriggers 10 are symmetrically arranged on both sides of the rear end of the vehicle body 1.

[0025] As attached Figure 2 As shown, a first slewing frame 13 is rotatably mounted on the outer side of the free end of the intermediate boom 4. The first slewing frame 13 can be rotated by a motor. A first arch frame gripper 3 and a drilling mechanism 8 are respectively mounted at both ends of the first slewing frame 13, used for erecting the arch frame and drilling holes, respectively. Depending on the needs, the intermediate boom 4 includes a first folding arm 401 and a first telescopic arm 402. The two ends of the first folding arm 401 are respectively hinged to one end of the first slewing bearing seat 12 and one end of the first telescopic arm 402. A hydraulic cylinder for controlling the rotation of the first folding arm 401 is connected between the first folding arm 401 and the first slewing bearing seat 12. Similarly, the first telescopic arm 40... 2 can also be controlled by a hydraulic cylinder to rotate relative to the first folding arm 401, and the first telescopic arm 402 can also be extended and retracted under the control of the hydraulic cylinder to adapt to the working height; the first arch frame gripper 3 includes a swing arm 301 hinged to the corresponding end of the first rotating frame 13, and a manipulator 302 installed at the free end of the swing arm 301. The manipulator 302 can be controlled by a hydraulic cylinder to open and close, thereby facilitating the clamping of the arch frame for vertical installation; in addition, the drilling mechanism 8 includes a swing frame 801, a sliding frame 802, an intermediate support rod 804, and end support rods 805 and a drilling drive motor 803 located at both ends of the sliding frame 802. One end of the moving frame 801 is hinged to the corresponding end of the first rotating frame 13 and can swing under the control of a hydraulic cylinder. The sliding frame 802 is slidably mounted on the swing frame 801 along the same axis, and its relative sliding can also be controlled by a hydraulic cylinder. The end support rod 805 is fixed to the front end of the sliding frame 802 away from the first arch gripper 3. The intermediate support rod 804 and the drilling drive 803 are slidably mounted on the sliding frame 802 through the front slider base and the rear slider base, respectively. A drilling pressure cylinder 806 is connected between the front slider base and the rear end of the sliding frame 802. The front slider base is equipped with a directional pulley, and the rear slider base is connected to one end of a steel wire rope. The other end of the wire rope passes over the directional pulley and is fixed to the rear end of the sliding frame 802. The drill rod passes through the intermediate support rod 804 and the end support rod 805 for rotational retention. The tail end of the drill rod is installed and fixed on the drilling drive motor 803 and is driven to rotate by the drilling drive motor 803. When the drilling pressure cylinder 806 is controlled to extend, it pushes the intermediate support rod 804 to move towards the end support rod 805. When the directional pulley moves with the intermediate support rod 804, it can use the wire rope to drive the drilling drive motor 803 to move forward by twice the stroke, thereby shortening the relative distance between the drilling drive motor 803 and the intermediate support rod 804, thus completing the function of drill rod advancement.

[0026] As attached Figure 3 and 4As shown, a second slewing frame 14 is rotatably mounted on the upper free end of the side boom 6. The second slewing frame 14 is rotated by a motor. A second arch frame grabber 9 and an anchor bolt installation mechanism 7, located away from the intermediate boom 4, are respectively installed on both sides of the second slewing frame 14. These are used for erecting the arch frame and installing anchor bolts in the borehole. A work basket 11, fixed to the second slewing frame 14, is provided on one side of the second arch frame grabber 9 to facilitate carrying workers for grouting pipe connection and arch frame connection. Depending on the needs, the side boom 6 includes a second telescopic boom 601 and a second folding boom 602. The folding arm 602 can adopt a quadrilateral folding structure. The two ends of the second telescopic arm 601 are respectively hinged to the second slewing support 5 and one end of the second folding arm 602. The rotation and corresponding extension / retraction control of the second telescopic arm 601 and the second folding arm 602 also use hydraulic cylinders, which will not be elaborated further here. In addition, the anchor bolt installation mechanism 7 includes a guide rail frame 701 fixed to the second slewing frame 14. A sliding support frame 702 is slidably mounted on the guide rail frame 701, and an anchor bolt pressing assembly 704 is slidably mounted on the sliding support frame 702. The sliding support frame 702 and... The relative slideways between the anchor bolt pressing assembly 704 and the guide rail frame 701 are both controlled by hydraulic cylinders, and the two-stage sliding can further extend the working distance. Specifically, the anchor bolt pressing assembly 704 also includes a long frame slidably mounted on the sliding support frame 702. A drive motor capable of moving forward to press the anchor bolt is slidably mounted at the rear end of the long frame, and an anchor bolt gripper is fixedly mounted at the front end of the long frame, which is controlled to open and close by a hydraulic cylinder. A rotating feeding boom compartment 703 is swayingly mounted on one side of the sliding support frame 702. The rotating feeding boom compartment 703 mainly includes wheels connected to the sliding support frame 702 via a swing arm. The rotating boom compartment includes a rotating hydraulic cylinder. The output shaft of the rotating hydraulic cylinder is connected to a long rod, and a wheel is coaxially fixed on the long rod at both the front and rear. Multiple ratchet teeth are set around the wheel, and an anchor rod can be clamped between two adjacent ratchet teeth. When the hydraulic cylinder controls the swing arm to swing, an anchor rod in the rotating boom compartment can be grabbed by the anchor rod grabber from the rotating boom compartment and installed onto the drive motor, thus completing one loading process. Through the two rotating loading boom compartments 703 on the two side booms 6, the required number of anchor rods can be carried at once, greatly improving the installation efficiency.

[0027] The arch-anchor separation type arch drilling and anchoring combined operation trolley of the present invention includes the following steps:

[0028] Step 1, as attached Figure 6 As shown, when the vehicle body 1 is moving, the middle boom 4 and the two side booms 6 are in the retracted state. After the vehicle body 1 is driven to the center of the tunnel construction position, the extended outriggers 10 are first extended outward for ground support and positioning to ensure construction stability.

[0029] Step 2: Keep the two side booms 6 retracted and unfold the middle boom 4. By adjusting the degrees of freedom, use the drilling mechanism 8 to drill holes in the tunnel roof in a fan-shaped radial pattern at intervals, so that multiple holes on both sides of the tunnel are symmetrical.

[0030] Step 3: Retract the middle boom 4, unfold the two side booms 6, and simultaneously install anchor bolts on the symmetrical holes on both sides of the tunnel. After a set of symmetrical holes is installed, use the grouting system 2 to grout the corresponding anchor bolts simultaneously until all the anchor bolts in the holes are completely installed and fixed.

[0031] Step 4: Deploy the intermediate boom 4 and the two side booms 6, and use the first arch frame grab 3 and the second arch frame grab 9 to erect the arch frame. Construction workers can stand on the work basket 11 to complete the installation between the arch frame and the anchor rod. Example 2:

[0032] Because two side booms 6 are used for simultaneous anchor bolt installation, the traditional grouting system 2 can no longer meet the construction process requirements of uniform and synchronous grouting in small-volume centralized structures; therefore, as shown in the attached... Figure 5As shown, the difference from Embodiment 1 is that the second slewing bearing seat 5 includes a sleeve 501 fixed to the vehicle body 1. The top end of the sleeve 501 is rotatably connected to a circular seat plate 502 via the slewing bearing. An A-type support 503 with clearance space is fixed on the upper surface of the circular seat plate 502, which facilitates the installation and exposure of the pipe joint 205. When a larger mixing motor is required, it can also be exposed from the clearance space, thereby saving space for placing a larger volume mixing tank. The grouting system 2 includes a main distribution pipe 203, a pressurized feeding device 202, and two grouts located inside the vehicle body 1. The material mixing device 201 and the pressurized feeding device 202 can be configured as a screw conveyor or a pressurized slurry pump. A pipe joint 205 is fixed in the middle of the circular seat plate 502. The two slurry mixing devices 201 are symmetrically arranged below the two second slewing bearing seats 5, and the top mixing motors of the two slurry mixing devices 201 are hidden in the corresponding sleeves 501 to save space. The discharge ports of the two slurry mixing devices 201 are connected to the corresponding slurry mixing devices 201 through discharge pipes 204 with first valves. The outlet of the pressurized feeding device 202 is connected to the main distribution pipe 20. The middle part of section 3 is connected, and both ends of the main distribution pipe 203 are connected to the corresponding pipe joints 205 via hoses 206; the two slurry mixing devices 201 share a single pressurized feeding device 202. Whether used simultaneously or with one in use and the other on standby, uniform material output can be guaranteed, ensuring the completion of synchronous operations. Furthermore, to prevent interference and blockage of the external slurry pipeline when the side boom 6 rotates, the pipe joints 205 rotate synchronously with the side boom 6, while the internal angle is adjusted using hoses 206 to increase protection and avoid blockage interference; pipe joints... A pressure gauge is installed on the head 205 side to further detect the discharge pressure and ensure that the grouting is synchronous and qualified. Two circular seat plates 502 are fitted with two meshing toothed rings 504 to further ensure that the two side booms 6 rotate synchronously. As needed, the middle pipe wall of the distribution main pipe 203 is connected to a cleaning pipe 207 with a second valve. The bottom of the slurry mixing device 201 is equipped with a drain pipe with a third valve. When cleaning is required, an external water pipe can be connected, and water can be injected in reverse through the cleaning pipe 207 for cleaning, so that the wastewater after cleaning can be discharged from the pipe joint 205 and the drain pipe.

[0033] The parts of this invention not described in detail are prior art. It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims within this invention, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A combined arch drilling and anchoring operation trolley with separate arch anchor and grouting, characterized in that: The vehicle includes a body (1), a central boom (4), and two symmetrically arranged side booms (6). The mounting ends of the central boom (4) and the two side booms (6) are arranged in an isosceles triangle. The central boom (4) and the side booms (6) are rotatably mounted on the upper surface of the middle part of the body (1) via a first slewing bearing seat (12) and a second slewing bearing seat (5), respectively. The second slewing bearing seat (5) includes a sleeve (501) fixed to the body (1). The top end of the sleeve (501) is rotatably connected to a circular seat plate (502) via a slewing bearing. The circular seat plate (502) The upper plate of the vehicle body (1) is fixed with an A-type support (503) that provides clearance; the middle of the vehicle body (1) is provided with a grouting system (2), which includes a material distribution main pipe (203), a pressurized feeding device (202) and two slurry mixing devices (201) located in the vehicle body (1). The middle of the round seat plate (502) is fixed with a pipe joint (205). The two slurry mixing devices (201) are symmetrically arranged below the two second slewing bearing seats (5), and the top mixing motors of the two slurry mixing devices (201) are hidden in the corresponding sleeves (5). In 01), the outlets of the two slurry mixing devices (201) are connected to the slurry mixing device (201) via discharge pipes (204) with first valves. The outlet of the booster feeding device (202) is connected to the middle of the distribution main pipe (203). Both ends of the distribution main pipe (203) are connected to the corresponding pipe joints (205) via hoses (206). A pressure gauge is installed on the side of the pipe joint (205). Two round seat plates (502) are fitted with two meshing toothed rings (504). The rear ends of the vehicle body (1) are symmetrical on both sides. Two telescopic and adjustable extension legs (10) are provided; a first slewing frame (13) is rotatably installed on the outer side of the free end of the intermediate boom (4), and a first arch frame grab (3) and a drilling mechanism (8) are respectively installed at both ends of the first slewing frame (13); a second slewing frame (14) is rotatably installed on the upper side of the free end of the side boom (6), and a second arch frame grab (9) and an anchor bolt installation mechanism (7) away from the intermediate boom (4) are respectively installed on both sides of the second slewing frame (14), and a work basket (11) is provided on one side of the second arch frame grab (9).

2. The arch-anchor separation type arch drilling and anchoring combined operation trolley according to claim 1, characterized in that: The intermediate boom (4) includes a first folding arm (401) and a first telescopic arm (402). The two ends of the first folding arm (401) are respectively hinged to one end of the first slewing support (12) and one end of the first telescopic arm (402). The first arch frame gripper (3) includes a swing arm (301) hinged to the corresponding end of the first slewing frame (13) and a robot arm (302) installed at the free end of the swing arm (301).

3. The arch-anchor separation type arch drilling and anchoring combined operation trolley according to claim 2, characterized in that: The drilling mechanism (8) includes a swing frame (801), a sliding frame (802), an intermediate support rod (804), and end support rods (805) and a drilling drive (803) located at both ends of the sliding frame (802). One end of the swing frame (801) is hinged to the corresponding end of the first rotating frame (13). The sliding frame (802) is slidably mounted on the swing frame (801) in the same direction. The end support rod (805) is fixed to the front end of the sliding frame (802) away from the first arch gripper (3). The intermediate support rod (804) and the drilling drive (803) are slidably mounted on the sliding frame (802) through the front slider base and the rear slider base, respectively. A drilling pressure cylinder (806) is connected between the front slider base and the rear end of the sliding frame (802). The front slider base is equipped with a directional pulley. One end of a steel wire rope is connected to the rear slider base. The other end of the steel wire rope passes around the directional pulley and is fixed to the rear end of the sliding frame (802).

4. The arch-anchor separation type arch drilling and anchoring combined operation trolley according to claim 1, characterized in that: The side boom (6) includes a second telescopic boom (601) and a second folding boom (602). The two ends of the second telescopic boom (601) are respectively hinged to one end of the second slewing bearing (5) and the second folding boom (602).

5. The arch-anchor separation type arch drilling and anchoring combined operation trolley according to claim 4, characterized in that: The anchor bolt installation mechanism (7) includes a guide rail frame (701) fixed to the second rotating frame (14), a sliding support frame (702) is slidably installed on the guide rail frame (701), an anchor bolt pressing assembly (704) is slidably installed on the sliding support frame (702), and a rotating feeding rod chamber (703) is swayed on one side of the sliding support frame (702).

6. The arch-anchor separation type arch drilling and anchoring combined operation trolley according to claim 1, characterized in that: The middle pipe wall of the main distribution pipe (203) is connected to a cleaning pipe (207) with a second valve, and the bottom of the slurry mixing device (201) is provided with a drain pipe with a third valve.

7. A construction method for a combined arch drilling and anchoring operation trolley as described in claim 1, characterized in that: it includes... The following steps: S1. After driving the vehicle body (1) to the center of the tunnel construction position, first extend the outriggers (10) to the ground for support and positioning. S2. Keep the two side booms (6) retracted and unfold the middle boom (4). By adjusting the degree of freedom, use the drilling mechanism (8) to drill holes in the tunnel roof in a fan-shaped radial pattern, so that multiple holes on both sides of the tunnel are symmetrical. S3. Shrink the middle boom (4), unfold the two side booms (6), and simultaneously install anchor bolts on the symmetrical holes on both sides of the tunnel. After a set of symmetrical holes is installed, use the grouting system (2) to grout the corresponding anchor bolts simultaneously until all the anchor bolts of the holes are completely installed and fixed. S4. Unfold the intermediate boom (4) and the two side booms (6), and use the first arch frame grab (3) and the second arch frame grab (9) to carry out the arch frame erection operation. The construction personnel can stand on the work basket (11) to complete the installation between the arch frame and the anchor rod.

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