Comprehensive rock tunnel rapid excavation equipment and use method

Abstract

This application discloses a comprehensive rock tunnel rapid excavation equipment and its use method. The excavation equipment herein comprises a multifunctional drilling and anchoring rig mounted on one side of a cantilevered tunnel boring machine (TBM) and a temporary support mechanism positioned above an oscillating cutting unit. Before the tunneling equipment breaks the rock, the multifunctional drilling rig forms a deep hole in the rock to be broken. A pulsating fracturing system then further fractures the deep hole, weakening the rock mass. The oscillating cutting unit then mills the rock mass. Finally, the multifunctional drilling rig and temporary support mechanism anchor the rock mass, providing a secure working environment. This equipment and technology streamlines the traditional tunneling process into a single, continuous process, significantly improving tunneling efficiency while saving costs.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to comprehensive rock tunnel rapid excavation equipment and a use method thereof. Background Art

[0002] Coal mining in my country is primarily underground, and tunneling is a critical prerequisite. With the continuous advancement of coal mining technology and equipment, tunneling operations are facing higher demands. Currently, the total length of newly excavated tunnels in my country reaches 12,000 kilometers annually, of which over 80% are coal tunnels. However, tunneling still relies on traditional processes such as drilling, charging, blasting, transportation, and construction. The average tunneling speed for coal tunnels is less than 200 meters per month, requiring over 700,000 workers. Slow tunneling speeds, high labor requirements, and low levels of intelligent technology have led to tight coordination between mining and excavation, and low tunneling efficiency has become a major constraint on safe and efficient coal mining. Boom-type roadheaders are core equipment for tunneling, capable of adapting to diverse geological conditions, featuring a high degree of mechanization, flexibility, and compatibility with a wide range of downstream equipment. Currently, a comprehensive and efficient tunneling system has not been established for tunneling operations. Issues such as imbalances in excavation, support, transportation, and auxiliary operations exist, hindering the full potential of the tunneling machine's cutting capabilities. Furthermore, the equipment's intelligence level is low, inter-system connectivity is weak, and centralized control is impossible. Therefore, how to achieve mechanized and efficient crushing of super-hard rock in coal mines has become a key issue and difficulty in rapid excavation of hard rock tunnels.

[0003] In recent years, advance drilling technology and equipment have demonstrated innovative practices in three key areas: integrated tunneling and exploration, rapid advance exploration, and comprehensive detection techniques based on directional drilling. These practices have provided valuable insights for tunneling operations. Traditional operations involving a cantilevered roadheader (TBM) and anchor drill rigs are becoming obsolete, while integrated tunneling, support, and transportation equipment are gaining popularity. The EBZ160T, EBZ220T, and EBZ260T series of integrated tunneling machines, manufactured by companies such as the China Coal Technology and Engineering Group Taiyuan Research Institute and Shijiazhuang Coal Mine Machinery Company, have been deployed underground in large and medium-sized coal mines. The drill rig is mounted on the side of the machine body and uses a two-stage telescopic cylinder to drill at various angles. Drilling begins before construction, the rig is rolled out from the side of the machine body to the designated location, and then returns to its original position upon completion, without disrupting tunneling operations. While ensuring the normal operation of the TBM, combined with temporary support devices, it can effectively perform drilling, detection, and support operations within the working face, roof, floor, and a certain range between the two sides. Under the premise that geological conditions permit, different equipment is used for segmented synchronous support to achieve the purpose of improving excavation efficiency.

[0004] Pulse hydraulic fracturing is a rock fracturing method based on an improvement of the traditional hydraulic fracturing process. It is widely used in fields such as oil and gas extraction, coal mining hard rock tunneling, and underground engineering construction. The traditional hydraulic fracturing method injects high-pressure fluid into the borehole, taking advantage of the rock's compressive but not tensile properties to form cracks, thereby reducing the rock strength and facilitating subsequent mining. However, traditional hydraulic fracturing methods have problems such as high energy consumption, difficulty in control, and rock stress concentration. Especially in high-hardness rock formations and complex geological conditions, continuous high pressure may cause non-uniform damage to the rock mass, affecting the stability and safety of the tunneling process. Therefore, pulse hydraulic fracturing technology has gradually become an important improvement solution. The pulse hydraulic fracturing method is used to directionally fracture the hard rock mass at the tunnel excavation working face into plate-like rock of a certain thickness, and then use alloy rollers for oscillating cutting to improve rock crushing efficiency. Therefore, tunneling equipment that integrates drilling, support, and cutting can realize centralized and visual control between tunnels, which can reduce tunneling time compared to traditional operations. Moreover, the comprehensive tunneling operation line is more mechanized, automated, and intelligent, and is a potential way to achieve efficient and rapid tunneling. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a comprehensive rock tunnel rapid excavation equipment and a method of use.

[0006] In order to solve the above technical problems, the present invention provides a technical solution: a comprehensive rock tunnel rapid excavation equipment, the excavation equipment comprising:

[0007] Crawler-type main frame, serving as the supporting platform for the overall structure;

[0008] The oscillating cutting unit is arranged on the crawler main frame and includes an oscillating cutting head and a telescopic unit. The rock formation is cut by the telescopic unit and the vibration of the oscillating cutting head.

[0009] A multifunctional drilling rig, installed on one side of the crawler main frame, is used to drill holes in rock formations and install anchor bolts;

[0010] The pulsating fracturing system is connected to the oscillating cutting section and is located behind the telescopic section. It generates hydraulic pulses to fracture the rock formation to improve cutting efficiency.

[0011] Temporary support mechanism, installed in front of the crawler main frame, used to provide temporary support during the excavation process;

[0012] The loading mechanism is arranged below the oscillating cutting part, and includes a shovel plate and a star wheel conveying device arranged on the shovel plate, and is used to collect and load the cut coal and rock;

[0013] The conveyor belt is arranged behind the loading mechanism and is connected to the loading mechanism to transport the coal and rock to the rear of the tunneling equipment;

[0014] The rear support part is arranged at the rear of the crawler main frame and is used to stabilize the position of the tunneling equipment during operation.

[0015] Furthermore, the oscillating cutting part is rotatably connected to the front end of the telescopic part through a connecting piece, and telescopic cylinders are rotatably provided at the upper and lower parts of the pulsating fracturing system, and the output ends of the telescopic cylinders arranged above and below are rotatably connected to the hinge supports arranged above and below the oscillating cutting part respectively.

[0016] Furthermore, the oscillating cutting head includes an alloy hob, a front end cover, a front shell, a front sleeve, a rear sleeve and a rear shell;

[0017] The alloy hob is fixed to the front end of the front cover by bolts, forming the main component of the cutting operation;

[0018] The rear sleeve is connected to the front end of the rear shell by bolts and extends into the interior of the rear shell;

[0019] An eccentric block shaft is rotatably arranged inside the rear sleeve through two deep groove ball bearings, wherein the front portion of the front deep groove ball bearing is further provided with an eccentric block shaft end cover, and the front portion of the rear deep groove ball bearing is provided with a sleeve for adapting to the eccentric block shaft;

[0020] The rear part of the deep groove ball bearing at the rear end is also equipped with an eccentric shaft motor through a motor sleeve and a bearing sleeve, and the output end of the eccentric shaft motor is connected to the eccentric block shaft. The front sleeve is installed on the front end of the rear sleeve by bolts, and the front end cover is rotatably arranged at the front end of the front sleeve through a cylindrical roller bearing, and a retaining ring is also provided on the inner side of the cylindrical roller bearing.

[0021] Furthermore, the multifunctional drilling rig includes a sliding platform, a walking mechanism, a mechanical arm, a rotary platform, a drilling rig guide rail and a drilling machine;

[0022] The sliding platform is arranged on the crawler-type main frame;

[0023] The walking mechanism includes a walking body slidably arranged on a sliding platform, a walking gear is provided inside the walking body through a walking motor, and a transmission rack meshing with the walking gear is provided on the sliding platform;

[0024] The front end of the walking body is provided with a first rotating member and a second rotating member for rotating around a vertical axis, the rear end of the robotic arm is connected to the first rotating member for rotating around a horizontal axis, the second rotating member is provided with a pitch swing oil cylinder for rotating around the horizontal axis, and the output end of the pitch swing oil cylinder is rotatably connected to the bottom of the robotic arm, the front ends of the walking body are also provided with left and right swing oil cylinders for rotating on both sides, and the output ends of the left and right swing oil cylinders on both sides are respectively rotatably connected to the two sides of the first rotating member, and the walking body is also provided with a pump station connected to the oil circuits of the pitch swing oil cylinder and the left and right swing oil cylinders;

[0025] A first rotary motor is provided at the front end of the robotic arm, and the output shaft of the first rotary motor is provided with a rotary platform that can rotate along a horizontal axis. A second rotary motor is provided on the rotary platform, and the output shaft of the second rotary motor is connected to the bottom of the drilling rig guide rail. The drilling machine is slidably arranged on the drilling rig guide rail through an electric slider, and a self-drilling anchor body is installed at the front end of the drilling machine through a rotary grouting adapter.

[0026] Furthermore, the self-drilling anchor body comprises a hollow anchor body, a drill bit, a connecting sleeve and a centering device;

[0027] The hollow anchor rod body is formed by connecting two sections of rod bodies through a connecting sleeve. The drill bit is arranged at the front end of the hollow anchor rod body. The end of the drill bit is a hollow disc structure with fine holes distributed along the circumference. The centerer is arranged on the front section of the hollow anchor rod body. The rear section of the hollow anchor rod body is provided with a pad for pressing on the rock wall and the pad is provided with a reinforcing bolt. The rear section of the hollow anchor rod body is also connected to a grouting machine through a rotary grouting adapter and a grouting pipe.

[0028] Furthermore, the pulsating fracturing system includes a pulsating fracturing shell, a piston is movably provided inside the pulsating fracturing shell, and the piston divides the inner cavity of the pulsating fracturing shell into an oil chamber and a water chamber, the oil filling port of the oil chamber is connected to the hydraulic system of the tunneling equipment, the telescopic part can move back and forth in the water chamber, the water inlet of the water chamber is connected to a low-pressure water pump through an inlet water channel, and a hydraulically controlled one-way valve is provided on the inlet water channel, and the water outlet of the water chamber is also connected to the hollow anchor rod body through the outlet water channel.

[0029] Furthermore, the temporary support mechanism includes a top guard plate and a front support frame, the bottom of the front support frame is rotatably connected to the pulsating fracturing shell through two support seats, support cylinders are rotatably provided on both sides of the pulsating fracturing shell, and a lifting cylinder is rotatably provided above the pulsating fracturing shell, the output ends of the support cylinder and the lifting cylinder are rotatably connected to the front support frame, the top guard plate is rotatably set above the front support frame, and a folding cylinder is rotatably provided at the bottom front end of the top guard plate, and the output end of the folding cylinder is rotatably connected to the front of the front support frame.

[0030] Furthermore, the star wheel conveying device includes two sets of drive motors arranged on the shovel plate, and the output ends of the two sets of drive motors are respectively provided with a left star wheel and a right star wheel. A channel for gravel transportation is formed between the left star wheel and the right star wheel, and the conveyor belt is arranged at the channel.

[0031] Furthermore, the rear support portion is rotatably arranged at the rear of the crawler-type main frame through a rear support oil cylinder, and a plurality of stabilizing cones are provided below the rear support portion.

[0032] The present application also provides a method for using the above-mentioned comprehensive rock tunnel rapid excavation equipment, comprising the following steps:

[0033] Step 1: Drilling and Pulsating Hydraulic Fracturing

[0034] When crushing hard rock with a Proctor hardness coefficient of f>15 in a roadway, first adjust the position of the tunneling equipment so that it is located in the middle of the roadway, use the walking mechanism to slide to the appropriate position on the sliding platform, and the pump station drives the two pitch swing cylinders to extend the two pitch swing cylinders to lift the mechanical arm. Then the pump station controls one left and right swing cylinder to shorten, and the other left and right swing cylinder to extend, and then cooperates with the first rotating part and the second rotating part to swing the mechanical arm to the position to be drilled. Then use the first rotary motor and the second rotary motor to adjust the position of the drilling machine, and the electric slider drives the drilling machine to slide on the drilling machine guide rail, so that the self-drilling anchor body enters the rock mass and produces a long straight deep hole in the rock mass to be crushed. Adjust the drilling machine to loosen the hollow rod section at the front end, drive the drilling machine back, set the centering device on the rear end of the hollow anchor rod body that has been drilled into the deep hole, and then use the connecting sleeve to set another hollow rod section. Adjust the drilling machine to connect the rod section, re-drive the drilling machine, and continue drilling in the long straight deep hole that has been produced. Repeat the above operation until the deep hole length reaches 10m, drive the drilling machine to exit the deep hole, remove the extended rod section, drive the mechanical arm and the drilling machine to move to the next drilling position, repeat the above operation until multiple long straight deep holes with a length of 10m are drilled, and finally drive the mechanical arm to exit the working plane and drive the walking mechanism to the initial position to complete the drilling work.

[0035] Subsequently, a high-pressure sealer is used to seal multiple long straight deep holes. A pulsed water injection system is used to inject pulsed water into the multiple long straight deep holes. The long straight deep holes are further cracked under the action of the pulsed hydraulic force. When the crack expansion range is observed to meet the requirements, the pulsed hydraulic fracturing work is completed and the high-pressure sealer is subsequently removed.

[0036] Step 2: Oscillation cutting and shipping

[0037] Adjust the position of the tunneling equipment so that it is located in the middle of the tunnel, drive the telescopic cylinder to adjust the cutting head so that the alloy roller is aligned with the expanded deep hole, drive the tunneling machine forward so that the alloy roller enters the expanded deep hole, and at the same time adjust the telescopic cylinder so that the alloy roller breaks the rock mass according to the cutting path, then load the broken rock fragments through the loading mechanism, and transport the broken rock fragments through the conveyor belt. Repeat the above process until the cutting depth reaches 1m;

[0038] Step 3: Temporary support and anchoring

[0039] After the second step is completed, adjust the tunneling equipment to the appropriate position, use the tunneling equipment hydraulic pump station to supply oil, push the hydraulic oil into the support cylinder, folding cylinder and lifting cylinder of the temporary support mechanism, drive the lifting cylinder to lift the entire temporary support mechanism, and then drive the folding cylinder to raise the front support frame. At the same time, drive the support cylinder to raise the top guard plate. The support cylinder, folding cylinder and lifting cylinder are coordinated through the multi-way reversing valve until the top guard plate and the front support frame are adjusted to the required height and angle and the required supporting force is achieved, then stop;

[0040] Drive the traveling mechanism of the multifunctional drilling rig to move it to a suitable position on the sliding platform, drive the mechanical arm to move the drilling machine to the position to be anchored, use the centering device to fix the front section of the hollow anchor rod, adjust the drilling machine angle, and connect the rear section of the hollow anchor rod to the drilling machine through the rotating grouting adapter;

[0041] Drive the drill rig to advance the drill bit, and use the grouting machine to inject grout at the same time, so as to achieve the effect of simultaneous drilling and grouting. Stop grouting after 1 minute of grouting at the hole mouth. After the slurry solidifies, install a pad close to the rock surface at the exposed section of the hollow anchor body, and then fix it to the pad with reinforcing bolts to press the rock surface. Repeat the above operation until all anchor positions are completed. When injecting grout with the grouting machine, use pure cement slurry or 1:1 mortar. The particle size of the sand in the mortar is ≤1.0mm, and the water-cement ratio is controlled at 0.4-0.5.

[0042] Step 4: Circulate excavation and support operations until the tunnel is through

[0043] After completing the above three steps, 1m of tunnel excavation is completed. The two steps of oscillation cutting and transportation and temporary support and anchor protection are repeated until several 10m deep holes in the first step are milled, which means that one stage of tunnel excavation is completed; the three steps of drilling-pulse hydraulic fracturing-oscillation cutting and transportation-temporary support and anchor protection are repeated until the tunnel excavation is completed.

[0044] Compared with the prior art, the beneficial technical effects of the present invention using the above technical solution are as follows:

[0045] 1. This application integrates borehole detection, pulse fracturing, oscillation cutting and support operations into a single device. Through the multi-functional drilling rig, deep hole drilling and grouting support can be completed on one side of the tunnel boring machine, reducing the connection time between processes. The temporary support device is located above the oscillation cutting part, and supports the rock mass in the cutting area in real time through the top guard plate and the front support, avoiding the risk of rock collapse caused by delayed support in traditional tunnel excavation. This application improves the overall continuity of tunnel excavation operations, reduces the frequency of equipment movement and time waste, and realizes the full mechanization and automation of drilling, cutting and support operations. It is suitable for tunneling scenarios that require high safety and high efficiency in coal mines and other underground projects.

[0046] 2. The pulsed hydraulic fracturing system uses pulsed water flow to directionally fracture the rock mass within the borehole, gradually forming a network of fractures under the impact of high-frequency water pressure. This process fully utilizes the rock's compressive but inflexible properties, effectively reducing its strength and forming a layered structure that is conducive to cutting. The periodic impact design of pulsed hydraulic fracturing not only effectively avoids the destabilization of the rock formation caused by continuous high pressure, but also further expands the fractures, creating conditions for subsequent oscillatory cutting. Compared with traditional hydraulic fracturing methods, pulsed hydraulic fracturing offers the advantages of energy conservation, strong controllability, and wider adaptability, and can be applied to tunneling in ultra-hard rock tunnels and complex geological conditions.

[0047] 3. The oscillating cutting head in this application utilizes an alloy cutter and eccentric block shaft combination, enabling high-frequency oscillating cutting, enabling the cutter head to precisely cut rock at varying depths. This design utilizes the eccentric block shaft's rotation to stimulate the cutter's eccentric oscillation. This technology reduces resistance when cutting hard rock, making the crushing process more efficient and stable. This improvement reduces equipment load and wear, extends equipment life, and significantly improves hard rock excavation efficiency, making it suitable for tunneling operations in hard rock formations. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a structural schematic diagram of a comprehensive rock tunnel rapid excavation equipment of the present application.

[0049] Figure 2 It is a structural diagram of the oscillating cutting part in this application.

[0050] Figure 3 It is a schematic diagram of the internal structure of the oscillating cutting head in this application.

[0051] Figure 4 It is a structural diagram of the multifunctional drilling rig in this application.

[0052] Figure 5 It is a schematic diagram of the meshing transmission of the traveling gear and rack in the traveling mechanism of the multifunctional drilling rig in this application.

[0053] Figure 6 It is a schematic diagram of the multifunctional drilling rig anchor protection in this application.

[0054] Figure 7 It is a schematic diagram of the internal structure of the pulsating fracturing system in this application.

[0055] Figure 8 It is the structural diagram of the temporary support mechanism in this application.

[0056] Figure 9 It is a structural diagram of the loading mechanism in this application.

[0057] Figure 10This is a schematic diagram of hydraulic fracturing using a high-pressure sealer in this application.

[0058] As shown in the figure: 1. Main frame, 2. Oscillation cutting unit, 3. Multifunctional drilling rig, 4. Temporary support mechanism, 5. Loading mechanism, 6. Conveyor belt, 7. Rear support unit, 8. Pulsating fracturing system, 9. High-pressure sealer;

[0059] 2-1, oscillating cutting head, 2-2, hinge support, 2-3, telescopic cylinder, 2-4, telescopic part;

[0060] 2-1-1, alloy hob, 2-1-2, front end cover, 2-1-3, front housing, 2-1-4, cylindrical roller bearing, 2-1-5, front sleeve, 2-1-6, rear sleeve, 2-1-7, rear housing, 2-1-8, deep groove ball bearing, 2-1-9, eccentric block shaft, 2-1-10, eccentric block shaft end cover, 2-1-11, bushing, 2-1-12, retaining ring, 2-1-13, skew axis motor, 2-1-14, motor sleeve, 2-1-15, bearing sleeve;

[0061] 3-1. Sliding platform, 3-2. Traveling mechanism, 3-3. First rotating member, 3-4. Second rotating member, 3-5. Robotic arm, 3-6. Rotating platform, 3-7. Drilling rig guide rail, 3-8. Drilling machine, 3-9. Left and right swing cylinder, 3-10. Pitch swing cylinder, 3-11. Rotary grouting adapter, 3-12. Traveling mechanism, 3-13. Self-drilling anchor bolt, 3-13-1. Hollow anchor bolt, 3-13-2. Drill bit; 3-13-3. Connecting sleeve, 3-13-4. Centering device, 3-13-5. Pad, 3-13-6. Reinforcement bolt;

[0062] 3-14, pump station, 3-15, second rotary motor, 3-16, grouting machine, 3-17, travel gear, 3-18, first rotary motor;

[0063] 4-1, top guard plate, 4-2, front support frame, 4-3, support cylinder, 4-4, folding cylinder, 4-5, support base, 4-6, lifting cylinder;

[0064] 5-1, left star wheel, 5-2, shovel plate, 5-3, drive motor, 5-4, right star wheel;

[0065] 8-1, pulsating fracturing shell, 8-2, piston, 8-3, oil chamber, 8-4, water chamber, 8-5, low-pressure water pump, 8-6, hydraulically controlled one-way valve. DETAILED DESCRIPTION

[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0067] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0068] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0069] Moreover, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0070] As attached Figure 1 As shown, a comprehensive rock tunnel rapid excavation equipment, the excavation equipment includes: a crawler main frame 1, which serves as a supporting platform for the overall structure; an oscillating cutting part 2, which is arranged on the crawler main frame 1, including an oscillating cutting head 2-1 and a telescopic part 2-4, and cuts the rock formation by the telescopic part 2-4 and the vibration of the oscillating cutting head 2-1; a multifunctional drilling rig 3, which is arranged on one side of the crawler main frame 1 and is used for drilling holes in the rock formation and installing anchor rods; a pulsating fracturing system 8, which is connected to the oscillating cutting part 2 and is arranged behind the telescopic part 2-4, and generates hydraulic pulses to The rock formation is fractured to improve the cutting efficiency; a temporary support mechanism 4 is arranged in front of the crawler main frame 1, for providing temporary support during the excavation process; a loading mechanism 5 is arranged below the oscillating cutting part 2, including a shovel plate 5-2 and a star wheel conveying device arranged on the shovel plate 5-2, for collecting and loading the cut coal and rock; a conveyor belt 6 is arranged behind the loading mechanism 5, connected to the loading mechanism 5, for conveying the coal and rock to the rear of the excavation equipment; a rear support part 7 is arranged at the rear of the crawler main frame 1, for stabilizing the position of the excavation equipment during work.

[0071] Furthermore, as attached Figure 2 As shown, the oscillating cutting section 2 is rotatably connected to the front end of the telescopic section 2-4 via a connecting piece. Telescopic cylinders 2-3 are provided above and below the pulsating fracturing system 8, and these telescopic cylinders 2-3 are capable of rotating about their axes. The output ends of the telescopic cylinders 2-3 are rotatably connected to the hinge supports 2-2 provided above and below the oscillating cutting section 2, respectively. By independently adjusting the extension or contraction states of the two telescopic cylinders 2-3, the present application can precisely control the up and down swing angles of the oscillating cutting head 2-1. Specifically, when the output end of the upper telescopic cylinder 2-3 is extended and the output end of the lower telescopic cylinder 2-3 is shortened, the oscillating cutting head 2-1 will swing downward accordingly; conversely, when the output end of the upper telescopic cylinder 2-3 is shortened and the output end of the lower telescopic cylinder 2-3 is extended, the oscillating cutting head 2-1 will swing upward. This enables the tunneling equipment to adapt to rock masses of different hardness and angles, improving the flexibility and adaptability of tunneling operations.

[0072] Specifically, as attached Figure 3As shown, the oscillating cutting head 2-1 includes an alloy hob 2-1-1, a front cover 2-1-2, a front shell 2-1-3, a front sleeve 2-1-5, a rear sleeve 2-1-6 and a rear shell 2-1-7; the alloy hob 2-1-1 is fixed to the front end of the front cover 2-1-2 by bolts, forming the main component of the cutting operation; the rear sleeve 2-1-6 is connected to the front end of the rear shell 2-1-7 by bolts and extends to the interior of the rear shell 2-1-7; the interior of the rear sleeve 2-1-6 is provided with an eccentric block shaft 2-1-9 rotating through two deep groove ball bearings 2-1-8, wherein the front part of the front deep groove ball bearing 2-1-8 is also provided with an eccentric block shaft end cover 2-110 The front end of the rear deep groove ball bearing 2-1-8 is equipped with a sleeve 2-1-11 for accommodating the eccentric shaft 2-1-9. The rear end of the rear deep groove ball bearing 2-1-8 is also equipped with an eccentric motor 2-1-13 via a motor sleeve 2-1-14 and a bearing sleeve 2-1-15. The output end of the eccentric motor 2-1-13 is connected to the eccentric shaft 2-1-9. The front sleeve 2-1-5 is bolted to the front end of the rear sleeve 2-1-6. The front cover 2-1-2 is rotatably mounted on the front end of the front sleeve 2-1-5 via a cylindrical roller bearing 2-1-4. A retaining ring 2-1-12 is also installed inside the cylindrical roller bearing 2-1-4 to share the cutting dynamic load. The eccentric shaft 2-1-9 and the eccentric motor 2-1-13 are connected by a spline. The eccentric angle of the axis of the eccentric shaft 2-1-9 is 4-5°. The oscillating cutting head 2-1 in this application not only integrates core components such as the alloy hob 2-1-1, the front cover 2-1-2, the front shell 2-1-3, the front sleeve 2-1-5, the rear sleeve 2-1-6 and the rear shell 2-1-7, but also incorporates a number of optimized features in its design. The alloy hob 2-1-1, as the main force in the cutting operation, is made of high-performance wear-resistant alloy material and is coated with a hard alloy layer on the surface to enhance its durability and cutting efficiency. In addition, the front cover 2-1-2 and the front sleeve 2-1-5 are flexibly rotated by means of a cylindrical roller bearing 2-1-4, and a retaining ring 2-1-12 is added, which not only ensures the smoothness of the rotation, but also effectively shares the huge dynamic load generated during cutting, protecting the internal structure from damage. The eccentric shaft 2-1-9, mounted within the rear sleeve 2-1-6, is designed with an eccentric angle of 4-5°. Combined with the spline connection to the skew-axis motor 2-1-13, this generates periodic oscillatory excitation when driven by the skew-axis motor 2-1-13. This design not only improves cutting efficiency but also effectively reduces cutting resistance and energy consumption. The eccentric shaft 2-1-9 is supported at each end by two deep-groove ball bearings 2-1-8. The front end is secured by the eccentric shaft end cap 2-1-10, while the rear end is connected to the output of the skew-axis motor 2-1-13 via a bushing 2-1-11, ensuring transmission stability and reliability.The entire oscillating cutting head 2-1 has a compact structure and precise coordination between its components, which not only ensures efficient cutting operations but also is easy to maintain and service. It is an indispensable and efficient tool in engineering fields such as mines and tunnels.

[0073] In a specific detailed embodiment, as shown in the attached Figure 4 -Attached Figure 5 As shown, the multifunctional drilling rig 3 is a highly integrated and flexible drilling device. It primarily consists of the following key components: a sliding platform 3-1, a traveling mechanism 3-2, a robotic arm 3-5, a rotary platform 3-6, drilling guide rails 3-7, and a drilling machine 3-8. These components work together to enable the multifunctional drilling rig 3 to perform efficient and precise drilling tasks in a variety of complex environments. The sliding platform 3-1 serves as the mobile foundation for the entire device and is connected to the crawler-type main frame 1.

[0074] The walking mechanism 3-2 includes a walking body 3-12 that is slidably mounted on the sliding platform 3-1. A walking motor inside the walking body 3-12 drives a walking gear 3-17 to rotate. The sliding platform 3-1 is provided with a transmission rack that meshes with the walking gear 3-17. The walking gear 3-17 drives the walking body 3-12 on the sliding platform 3-1 via the transmission rack, thereby achieving the overall movement of the walking body 3-12.

[0075] The front end of the walking body 3-12 rotates around the vertical axis and is provided with a first rotating part 3-3 and a second rotating part 3-4. The rear end of the mechanical arm 3-5 rotates around the horizontal axis and is connected to the first rotating part 3-3. The second rotating part 3-4 rotates around the horizontal axis and is provided with a pitch swing oil cylinder 3-10, and the output end of the pitch swing oil cylinder 3-10 is rotatably connected to the bottom of the mechanical arm 3-5. The front ends of the walking body 3-12 are also rotated with left and right swing oil cylinders 3-9 on both sides, and the output ends of the left and right swing oil cylinders 3-9 on both sides are respectively rotatably connected to the two sides of the first rotating part 3-3. The walking body 3-12 is also provided with a pitch The pump station 3-14 is connected to the oil circuits of the swing cylinder 3-10 and the left and right swing cylinders 3-9. The front end of the robotic arm 3-5 is equipped with a first rotary motor 3-18. The output shaft of the first rotary motor 3-18 is equipped with a rotary platform 3-6 that can rotate along a horizontal axis. The rotary platform 3-6 is equipped with a second rotary motor 3-15, and the output shaft of the second rotary motor 3-15 is connected to the bottom of the drilling rig guide rail 3-7. The drilling machine 3-8 is slidably mounted on the drilling rig guide rail 3-7 via an electric slider. The front end of the drilling machine 3-8 is equipped with a self-drilling anchor body 3-13 via a rotary grouting adapter 3-11. At the front end of the walking body 3-12, a first rotating member 3-3 and a second rotating member 3-4 are provided for rotation around a vertical axis. The first rotating member 3-3 and the second rotating member 3-4 provide flexible rotation space for the robotic arm 3-5. The rear end of the robotic arm 3-5 is connected to the first rotating member 3-3 for rotation around a horizontal axis, allowing it to rotate in the horizontal plane. To further enhance the flexibility of the robotic arm 3-5, a pitching cylinder 3-10 is mounted on the second rotating member 3-4, pivoting about a horizontal axis. Its output end is pivotally connected to the bottom of the robotic arm 3-5. Adjusting the extension and contraction of the pitching cylinder 3-10 enables the robotic arm 3-5 to pitch and swing vertically. Furthermore, left and right swinging cylinders 3-9 are pivotally mounted on either side of the front end of the walking body 3-12. The output ends of these two left and right swinging cylinders 3-9 are pivotally connected to either side of the first rotating member 3-3. By simultaneously adjusting the extension and contraction of these two left and right swinging cylinders 3-9, the robotic arm 3-5 can swing horizontally, further expanding the range of the robotic arm 3-5.

[0076] In order to ensure the stable operation of the pitch and swing cylinders 3-10 and the left and right swing cylinders 3-9, a pump station 3-14 connected to their oil circuits is also provided on the walking body 3-12. The pump station 3-14 provides a stable and reliable hydraulic power source for these cylinders, ensuring that the mechanical arm 3-5 can flexibly and accurately complete various movements.

[0077] In a specific embodiment disclosed in this application, as shown in the attached Figure 6As shown, the self-drilling anchor rod body 3-13 includes a hollow anchor rod body 3-13-1, a drill bit 3-13-2, a connecting sleeve 3-13-3 and a centering device 3-13-4; the hollow anchor rod body 3-13-1 is formed by connecting two sections of the anchor rod body through the connecting sleeve 3-13-3, the drill bit 3-13-2 is set at the front end of the hollow anchor rod body 3-13-1, and the end of the drill bit 3-13-2 is a hollow disc structure and distributed along the circumference. A small hole is provided. A centering device 3-13-4 is provided on the front section of the hollow anchor rod 3-13-1. The rear section of the hollow anchor rod 3-13-1 is sleeved with a pad 3-13-5 for pressing against the rock wall. The pad 3-13-5 is provided with a reinforcing bolt 3-13-6. The rear section of the hollow anchor rod 3-13-1 is also connected to a grouting machine 3-16 via a rotary grouting adapter 3-11 and a grouting pipe. The reinforcing bolt 3-13-6 and the pad 3-13-5 are used in conjunction. The reinforcing bolt 3-13-6 first transmits the anchoring force of the hollow anchor rod 3-13-1 to the pad 3-13-5. The pad 3-13-5 then applies the anchoring force to the surrounding rock, transferring stress, improving the force applied to the end, and enhancing the anchoring effect of the self-drilling anchor rod. The centering device 3-13-4 can ensure that the rod body of the self-drilling anchor rod is always located in the center of the drill hole during the construction process, thereby ensuring that the thickness of the slurry around the rod body is uniform and further enhancing the anchoring effect.

[0078] In a specific embodiment disclosed in this application, as shown in the attached Figure 7As shown, the pulsating fracturing system 8 includes a pulsating fracturing housing 8-1, which is equipped with a piston 8-2 that movably divides the interior of the pulsating fracturing housing 8-1 into an oil chamber 8-3 and a water chamber 8-4. The oil inlet of the oil chamber 8-3 is connected to the hydraulic system of the tunneling equipment. The telescopic portion 2-4 can move back and forth within the water chamber 8-4. The water inlet of the water chamber 8-4 is connected to a low-pressure water pump 8-5 via an inlet waterway, and a hydraulically controlled one-way valve 8-6 is installed on the inlet waterway. The water outlet of the water chamber 8-4 is also connected to the hollow anchor body 3-13-1 via an outlet waterway. The system generates hydraulic pulses by causing pressure changes in the water and oil through the movement of the piston 8-2. Specifically, the tunneling equipment's hydraulic system fills and pressurizes oil chamber 8-3, generating a high-pressure oil flow that pushes piston 8-2 within oil chamber 8-3 toward water chamber 8-4. Low-pressure water pump 8-5 supplies water pressure to water chamber 8-4 within the equipment via hydraulically controlled check valve 8-6 and the water inlet. Oil chamber 8-3 and water chamber 8-4 are separated by piston 8-2. As piston 8-2 moves, water in water chamber 8-4, under pressure, flows toward the outlet connected to the hollow anchor bolt 3-13-1. Simultaneously, the oscillating cutting head 2-1 and telescopic section 2-4, driven by telescopic cylinder 2-3 under the pressure of water in water chamber 8-4, share the water pressure. When the pulse pressure reaches a certain level, hydraulically controlled check valve 8-6 controls the flow of liquid, causing it to be ejected from the outlet and passed through high-pressure sealer 9, where it further acts on the fracture area. After water drilling, the pulse water transmitted by the pulse fracturing system acts on the rock formation, forming an impact force, thereby generating cracks in the rock. By periodically pulsing water, an expanded crack network can be triggered in the rock formation, realizing hydraulic fracturing of the rock formation. This process is repeated, allowing the equipment to continuously generate pulse water flow, thereby continuously impacting the rock formation at a high frequency.

[0079] In a specific embodiment disclosed in this application, as shown in the attached Figure 8As shown, the temporary support mechanism 4 includes a top guard plate 4-1 and a front support frame 4-2. The bottom of the front support frame 4-2 is rotatably connected to the pulsating fracturing shell 8-1 through two support seats 4-5. Support cylinders 4-3 are rotatably provided on both sides of the pulsating fracturing shell 8-1, and a lifting cylinder 4-6 is rotatably provided above the pulsating fracturing shell 8-1. The output ends of the support cylinder 4-3 and the lifting cylinder 4-6 are rotatably connected to the front support frame 4-2. The top guard plate 4-1 is rotatably set above the front support frame 4-2. A folding cylinder 4-4 is also rotatably provided at the bottom front end of the top guard plate 4-1, and the output end of the folding cylinder 4-4 is rotatably connected to the front of the front support frame 4-2. The temporary support mechanism 4 is powered by hydraulic oil from the tunneling equipment's hydraulic system. During operation, the support cylinder 4-3 and lift cylinder 4-6 extend to raise the front support frame 4-2 to a certain height before stopping. The folding cylinder 4-4 extends to prop up the top guard plate 4-1 against the rock face. To retract, the folding cylinder 4-4 first retracts to retract the top guard plate 4-1, while the support cylinder 4-3 and lift cylinder 4-6 retract to retract the front support frame 4-2. The entire temporary support mechanism 4 is highly adaptable to the tunneling equipment and boasts highly flexible operation mechanisms.

[0080] In a specific embodiment disclosed in this application, as shown in the attached Figure 9 As shown, the star-wheel conveyor system includes two drive motors 5-3 mounted on a shovel 5-2. The output ends of the two drive motors 5-3 are equipped with left and right star wheels 5-1 and 5-4, respectively. A channel for conveying crushed rock is formed between the left and right star wheels 5-1 and 5-4, and a conveyor belt 6 is provided in the channel. The star-wheel conveyor system collects and loads broken rock onto the conveyor belt 6 and transports it to the rear of the crawler track. Specifically, the shovel 5-2 scoops up the broken rock, and the left and right star wheels 5-1 and 5-4, driven by the drive motors 5-3, rotate in opposite directions, transporting the scooped rock to the conveyor belt 6 in real time.

[0081] In one embodiment of the present disclosure, a rear support 7 is pivotally mounted behind the crawler mainframe 1 via a rear support cylinder, and a plurality of stabilizing cones are positioned below the rear support 7. Both the rear support 7 and the rear support cylinder are pivotally mounted behind the crawler mainframe 1, and the output end of the rear support cylinder is pivotally connected to the rear support 7. As a result, the cylinder's telescopic action allows the rear support 7 to pivot toward the ground, providing stable support.

[0082] The present application also provides a method for using a comprehensive rock tunnel rapid excavation equipment, comprising the following steps:

[0083] Step 1: Drilling and Pulsating Hydraulic Fracturing

[0084] When crushing hard rock with a Proctor hardness coefficient of f>15 in the tunnel, first adjust the position of the tunneling equipment so that it is located in the middle of the tunnel, use the walking mechanism 3-2 to slide on the sliding platform 3-1 to a suitable position, and the pump station 3-14 drives the two pitch swing cylinders 3-10 to extend the two pitch swing cylinders 3-10 to lift the mechanical arm 3-5. Then the pump station 3-14 controls one left and right swing cylinder 3-9 to shorten, and the other left and right swing cylinder 3-9 to extend, and then cooperates with the first rotating part 3-3 and the second rotating part 3-4 to swing the mechanical arm 3-5 to the position to be drilled, and then use the first rotary motor 3-18 and the second rotary motor 3-15 to adjust the position of the drilling machine 3-8, and the electric slider drives the drilling machine 3-8 to slide on the drilling machine guide rail 3-7, so that the self-drilling anchor rod body 3-13 enters the rock mass and is in the rock mass to be crushed. A long straight deep hole is generated in the process, and the drilling machine 3-8 is adjusted to loosen the hollow segmented rod body at the front end, and the drilling machine 3-8 is driven to retreat. The centering device 3-13-4 is sleeved on the rear end of the hollow anchor rod body 3-13-1 that has been drilled into the deep hole, and another hollow segmented rod body is sleeved using the connecting sleeve 3-13-3. The drilling machine 3-8 is adjusted to connect the segmented rod bodies, and the drilling machine 3-8 is driven again to continue drilling in the long straight deep hole that has been generated. The above operation is repeated until the deep hole length reaches 10m, the drilling machine 3-8 is driven to withdraw from the deep hole, the lengthened segmented rod body is removed, and the mechanical arm 3-5 and the drilling machine 3-8 are driven to move to the next position to be drilled. The above operation is repeated until multiple long straight deep holes with a length of 10m are drilled, and finally the mechanical arm 3-5 is driven to withdraw from the working plane, and the walking mechanism 3-2 is driven to the initial position, and the drilling work is completed.

[0085] Subsequently, a plurality of long straight deep holes are sealed with a high-pressure sealer 9, and a pulse water injection system 8 is used to inject pulse water into the plurality of long straight deep holes. The long straight deep holes are further cracked under the action of the pulse hydraulic force. When it is observed that the expansion range of the cracks reaches the required range, the pulse hydraulic fracturing work is completed, and then the high-pressure sealer 9 is removed (as shown in the attached figure). Figure 10 shown);

[0086] Step 2: Oscillation cutting and shipping

[0087] Adjust the position of the tunneling equipment so that it is in the middle of the tunnel, drive the telescopic cylinder 2-3 to adjust the oscillating cutting head 2-1, align the alloy roller cutter 2-1-1 with the expanded deep hole, drive the tunneling machine forward, and make the alloy roller cutter 2-1-1 enter the expanded deep hole. At the same time, adjust the telescopic cylinder 2-3 so that the alloy roller cutter 2-1-1 breaks the rock mass according to the cutting path, and then load the broken rock fragments through the loading mechanism 5, and transport the broken rock fragments through the conveyor belt 6. Repeat the above process until the cutting depth reaches 1m;

[0088] Step 3: Temporary support and anchoring

[0089] After the second step is completed, adjust the tunneling equipment to be in a suitable position, use the tunneling equipment hydraulic pump station to supply oil, push the hydraulic oil into the supporting cylinder 4-3, folding cylinder 4-4 and lifting cylinder 4-6 of the temporary support mechanism 4, drive the lifting cylinder 4-6 to lift the entire temporary support mechanism 4, and then drive the folding cylinder 4-4 to raise the front support frame 4-2, and at the same time drive the supporting cylinder 4-3 to raise the top guard plate 4-1, and coordinate the operation of the supporting cylinder 4-3, folding cylinder 4-4 and lifting cylinder 4-6 through the multi-way reversing valve until the top guard plate 4-1 and the front support frame 4-2 are adjusted to the required height and angle and reach the required supporting force, then stop;

[0090] Drive the traveling mechanism 3-2 of the multifunctional drilling rig 3 to move it to a suitable position on the sliding platform 3-1, drive the mechanical arm 3-5 to move the drilling machine 3-8 to the position to be anchored, use the centering device 3-13-4 to fix the front section of the hollow anchor rod 3-13-1, adjust the angle of the drilling machine 3-8, and connect the rear section of the hollow anchor rod 3-13-1 to the drilling machine 3-8 through the rotary grouting adapter 3-11;

[0091] Drive the drilling machine 3-8 to advance the drill bit 3-13-2, and simultaneously use the grouting machine 3-16 to perform grouting, achieving the effect of simultaneous drilling and grouting. Stop grouting after 1 minute of back-slurry from the hole mouth. After the slurry solidifies, install the pad 3-13-5 on the exposed section of the hollow anchor body 3-13-1 close to the rock surface, and then use the reinforcing bolt 3-13-6 to fix it to the pad 3-13-5 and press it against the rock surface. Repeat the above operation until all the anchoring positions are completed. When grouting, the grouting machine 3-16 uses pure cement slurry or 1:1 mortar. The particle size of the sand in the mortar is ≤1.0mm, and the water-cement ratio is controlled at 0.4-0.5.

[0092] Step 4: Circulate excavation and support operations until the tunnel is through

[0093] After completing the above three steps, 1m of tunnel excavation is completed, and the two steps of oscillation cutting and shipping and temporary support and anchoring are repeated until several 10m deep holes in the first step are milled, which means that one stage of tunnel excavation is completed; the three steps of drilling-pulse hydraulic fracturing-oscillation cutting and shipping-temporary support and anchoring are repeated until the tunnel excavation is completed. The above describes the present invention and its embodiments. This description is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual structure is not limited to this. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention, without creatively designing structural methods and embodiments similar to the technical solution, they should all fall within the scope of protection of the present invention.

Claims

1. A comprehensive rock tunnel rapid excavation equipment, characterized by: The excavation equipment includes: A crawler-type main frame (1) serving as a supporting platform for the overall structure; An oscillating cutting unit (2) is arranged on a crawler-type main frame (1), and comprises an oscillating cutting head (2-1) and a telescopic unit (2-4), and cuts the rock layer through the telescopic movement of the telescopic unit (2-4) and the vibration of the oscillating cutting head (2-1); A multifunctional drilling rig (3) is arranged on one side of the crawler-type main frame (1) and is used for drilling holes in rock formations and installing anchor rods; A pulsating fracturing system (8), connected to the oscillating cutting section (2) and arranged behind the telescopic section (2-4), is used to fracture the rock formation by generating hydraulic pulses to improve cutting efficiency; A temporary support mechanism (4) is provided in front of the crawler main frame (1) and is used to provide temporary support during the excavation process; A loading mechanism (5) is arranged below the oscillating cutting portion (2), comprising a shovel plate (5-2) and a star wheel conveying device arranged on the shovel plate (5-2), and is used for collecting and loading the cut coal and rock; A conveyor belt (6) is provided behind the loading mechanism (5) and is connected to the loading mechanism (5) for conveying coal and rock to the rear of the tunneling equipment; A rear support portion (7) is provided at the rear of the crawler-type main frame (1) and is used to stabilize the position of the tunneling equipment during operation; The oscillating cutting part (2) is rotatably connected to the front end of the telescopic part (2-4) via a connecting piece, and telescopic oil cylinders (2-3) are rotatably provided at the upper and lower parts of the pulsating fracturing system (8), and the output ends of the upper and lower telescopic oil cylinders (2-3) are rotatably connected to the hinge supports (2-2) provided at the upper and lower parts of the oscillating cutting part (2) respectively; The oscillating cutting head (2-1) comprises an alloy hob (2-1-1), a front end cover (2-1-2), a front shell (2-1-3), a front sleeve (2-1-5), a rear sleeve (2-1-6), and a rear shell (2-1-7); The alloy hob (2-1-1) is fixed to the front end of the front end cover (2-1-2) by bolts, forming a main component for cutting operations; The rear sleeve (2-1-6) is connected to the front end of the rear shell (2-1-7) by means of bolts and extends into the interior of the rear shell (2-1-7); An eccentric block shaft (2-1-9) is rotatably provided inside the rear sleeve (2-1-6) via two deep groove ball bearings (2-1-8), wherein the front portion of the front deep groove ball bearing (2-1-8) is further provided with an eccentric block shaft end cover (2-1-10), and the front portion of the rear deep groove ball bearing (2-1-8) is provided with a shaft sleeve (2-1-11) for adapting to the eccentric block shaft (2-1-9); The rear portion of the deep groove ball bearing (2-1-8) at the rear end is also equipped with an eccentric shaft motor (2-1-13) via a motor sleeve (2-1-14) and a bearing sleeve (2-1-15), and the output end of the eccentric shaft motor (2-1-13) is connected to the eccentric block shaft (2-1-9). The front sleeve (2-1-5) is mounted on the front end of the rear sleeve (2-1-6) via bolts. The front end cover (2-1-2) is rotatably arranged at the front end of the front sleeve (2-1-5) via a cylindrical roller bearing (2-1-4), and a retaining ring (2-1-12) is further provided on the inner side of the cylindrical roller bearing (2-1-4). The multifunctional drilling rig (3) comprises a sliding platform (3-1), a walking mechanism (3-2), a mechanical arm (3-5), a rotary platform (3-6), a drilling rig guide rail (3-7) and a drilling machine (3-8); The sliding platform (3-1) is arranged on the sliding platform (3-1); The walking mechanism (3-2) comprises a walking body (3-12) slidably arranged on a sliding platform (3-1), a walking gear (3-17) is provided inside the walking body (3-12) via a walking motor, and a transmission rack meshing with the walking gear (3-17) is provided on the sliding platform (3-1); The front end of the walking body (3-12) rotates around a vertical axis and is provided with a first rotating member (3-3) and a second rotating member (3-4); the rear end of the mechanical arm (3-5) rotates around a horizontal axis and is connected to the first rotating member (3-3); the second rotating member (3-4) rotates around the horizontal axis and is provided with a pitch swing oil cylinder (3-10), and the output end of the pitch swing oil cylinder (3-10) is rotationally connected to the bottom of the mechanical arm (3-5); the front ends of the walking body (3-12) are also rotationally provided with left and right swing oil cylinders (3-9), and the output ends of the left and right swing oil cylinders (3-9) on both sides are rotationally connected to the two sides of the first rotating member (3-3); the walking body (3-12) is also provided with a pump station (3-14) connected to the oil circuits of the pitch swing oil cylinder (3-10) and the left and right swing oil cylinders (3-9); A first rotary motor (3-18) is provided at the front end of the mechanical arm (3-5); an output shaft of the first rotary motor (3-18) is provided with a rotary platform (3-6) capable of rotating along a horizontal axis; a second rotary motor (3-15) is provided on the rotary platform (3-6); and an output shaft of the second rotary motor (3-15) is connected to the bottom of a drilling rig guide rail (3-7); the drilling machine (3-8) is slidably arranged on the drilling rig guide rail (3-7) via an electric slider; and a self-drilling anchor rod body (3-13) is installed at the front end of the drilling machine (3-8) via a rotary grouting adapter (3-11); The self-drilling anchor rod body (3-13) comprises a hollow anchor rod body (3-13-1), a drill bit (3-13-2), a connecting sleeve (3-13-3) and a centering device (3-13-4); The hollow anchor rod body (3-13-1) is formed by butting two sections of rod bodies together through a connecting sleeve (3-13-3); the drill bit (3-13-2) is arranged at the front end of the hollow anchor rod body (3-13-1); the end of the drill bit (3-13-2) is a hollow disc-shaped structure with fine holes distributed along the circumference; the centering device (3-13-4) is arranged on the front section of the hollow anchor rod body (3-13-1); the rear section of the hollow anchor rod body (3-13-1) is provided with a pad (3-13-5) for pressing on the rock wall, and the pad (3-13-5) is provided with a reinforcing bolt (3-13-6); the rear section of the hollow anchor rod body (3-13-1) is also connected to a grouting machine (3-16) via a rotary grouting adapter (3-11) and a grouting pipe; The pulsating fracturing system (8) comprises a pulsating fracturing shell (8-1), a piston (8-2) movably provided inside the pulsating fracturing shell (8-1), and the piston (8-2) divides the inner cavity of the pulsating fracturing shell (8-1) into an oil cavity (8-3) and a water cavity (8-4), an oil filling port of the oil cavity (8-3) is connected to the hydraulic system of the excavation equipment, the telescopic part (2-4) is capable of moving back and forth in the water cavity (8-4), a water inlet of the water cavity (8-4) is connected to a low-pressure water pump (8-5) via an inlet water channel, and a hydraulically controlled one-way valve (8-6) is provided on the inlet water channel, and a water outlet of the water cavity (8-4) is also connected to a hollow anchor rod body (3-13-1) via an outlet water channel.

2. The comprehensive rock tunnel rapid excavation equipment according to claim 1, characterized in that: The temporary support mechanism (4) comprises a top guard plate (4-1) and a front support frame (4-2); the bottom of the front support frame (4-2) is rotatably connected to the pulsating fracturing shell (8-1) via two support seats (4-5); support oil cylinders (4-3) are rotatably provided on both sides of the pulsating fracturing shell (8-1); and a lifting oil cylinder (4-6) is rotatably provided above the pulsating fracturing shell (8-1); the output ends of the support oil cylinder (4-3) and the lifting oil cylinder (4-6) are rotatably connected to the front support frame (4-2); the top guard plate (4-1) is rotatably provided above the front support frame (4-2); a folding oil cylinder (4-4) is rotatably provided at the bottom front end of the top guard plate (4-1); and the output end of the folding oil cylinder (4-4) is rotatably connected to the front of the front support frame (4-2).

3. The comprehensive rock tunnel rapid excavation equipment according to claim 2, characterized in that: The star wheel conveying device comprises two sets of drive motors (5-3) arranged on a shovel plate (5-2), the output ends of the two sets of drive motors (5-3) are respectively provided with a left star wheel (5-1) and a right star wheel (5-4), a channel for conveying crushed stones is formed between the left star wheel (5-1) and the right star wheel (5-4), and a conveyor belt (6) is arranged at the channel.

4. The comprehensive rock tunnel rapid excavation equipment according to claim 3, characterized in that: The rear support portion (7) is rotatably arranged at the rear of the crawler-type main frame (1) through a rear support oil cylinder, and a plurality of stabilizing cones are arranged below the rear support portion (7).

5. A method for using the comprehensive rock tunnel rapid excavation equipment according to claim 4, characterized in that: The steps include: Step 1: Drilling and Pulsating Hydraulic Fracturing The Pusch hardness coefficient f in the roadway crushing When the rock mass is hard and thicker than 15, the position of the excavation equipment is first adjusted so that it is located in the middle of the tunnel. The walking mechanism (3-2) is used to slide the sliding platform (3-1) to a suitable position. The pump station (3-14) drives the two pitch swing cylinders (3-10) to extend the two pitch swing cylinders (3-10) and lift the mechanical arm (3-5). Then the pump station (3-14) controls one left and right swing cylinder (3-9) to shorten and the other left and right swing cylinder (3-9) to extend. Then, the mechanical arm (3-5) is swung to the position to be drilled by cooperating with the first rotary member (3-3) and the second rotary member (3-4). Then, the position of the drilling machine (3-8) is adjusted by using the first rotary motor (3-18) and the second rotary motor (3-15). The electric slide drives the drilling machine (3-8) to slide on the drilling machine guide rail (3-7), so that the self-drilling anchor rod body (3-13) enters the rock mass and produces in the rock mass to be broken. A long straight deep hole is produced, the drilling machine (3-8) is adjusted to loosen the hollow segmented rod body at the front end, the drilling machine (3-8) is driven back, a centering device (3-13-4) is sleeved on the rear end of the hollow anchor rod body (3-13-1) that has been drilled into the deep hole, another hollow segmented rod body is sleeved using the connecting sleeve (3-13-3), the drilling machine (3-8) is adjusted to connect the segmented rod bodies, and the drilling machine (3-8) is driven again to drill a hole in the long straight deep hole that has been produced. Continue drilling, repeat the above operations until the deep hole length reaches 10m, drive the drilling machine (3-8) to exit the deep hole, remove the extended rod section, drive the mechanical arm (3-5) and the drilling machine (3-8) to move to the next drilling position, repeat the above operations until multiple long straight deep holes of 10m in length are drilled, finally drive the mechanical arm (3-5) to exit the working plane, drive the walking mechanism (3-2) to the initial position, and complete the drilling work; Subsequently, a high-pressure sealer (9) is used to seal the plurality of long straight deep holes, and a pulse water injection system (8) is used to inject pulse water into the plurality of long straight deep holes. The long straight deep holes are further cracked under the action of the pulse hydraulic force. When it is observed that the expansion range of the cracks reaches the required range, the pulse hydraulic fracturing work is completed, and then the high-pressure sealer (9) is removed; Step 2: Oscillation cutting and shipping Adjust the position of the tunneling equipment so that it is located in the middle of the tunnel, drive the telescopic oil cylinder (2-3) to adjust the oscillating cutting head (2-1) so that the alloy roller (2-1-1) is aligned with the expanded deep hole, drive the tunneling machine forward so that the alloy roller (2-1-1) enters the expanded deep hole, and at the same time adjust the telescopic oil cylinder (2-3) so that the alloy roller (2-1-1) crushes the rock mass according to the cutting path, then load the crushed rock fragments through the loading mechanism (5), and transport the crushed rock fragments through the conveyor belt (6), and repeat the above process until the cutting depth reaches 1m; Step 3: Temporary support and anchoring After the second step is completed, the excavation equipment is adjusted to be in a suitable position, and the hydraulic pump station of the excavation equipment is used to supply oil to push the hydraulic oil into the supporting cylinder (4-3), folding cylinder (4-4) and lifting cylinder (4-6) of the temporary support mechanism (4), and the lifting cylinder (4-6) is driven to lift the entire temporary support mechanism (4), and then the folding cylinder (4-4) is driven to lift the front support frame (4-2), and at the same time, the supporting cylinder (4-3) is driven to lift the top guard plate (4-1), and the supporting cylinder (4-3), folding cylinder (4-4) and lifting cylinder (4-6) are coordinated to operate through the multi-way reversing valve until the top guard plate (4-1) and the front support frame (4-2) are adjusted to the required height and angle and the required supporting force is reached and then stop; Drive the walking mechanism (3-2) of the multifunctional drilling machine (3) to move it to a suitable position on the sliding platform (3-1), drive the mechanical arm (3-5) to move the drilling machine (3-8) to the position to be anchored, use the centering device (3-13-4) to fix the front section of the hollow anchor rod body (3-13-1), adjust the angle of the drilling machine (3-8), and connect the rear section of the hollow anchor rod body (3-13-1) to the drilling machine (3-8) through the rotating grouting adapter (3-11); Drive the drilling machine (3-8) to advance the drill bit (3-13-2), and simultaneously use the grouting machine (3-16) to perform grouting, so as to achieve the effect of simultaneous drilling and grouting. Stop grouting after 1 minute of back-slurrying at the hole mouth. After the slurry solidifies, install a pad (3-13-5) on the exposed section of the hollow anchor rod (3-13-1) close to the rock surface, and then use a reinforcing bolt (3-13-6) to fix it to the pad (3-13-5) and press the rock surface. Repeat the above operation until all anchoring positions are completed. The grouting machine (3-16) uses pure cement slurry or 1:1 mortar when grouting. The particle size of the sand in the mortar is ≤1.0mm, and the water-cement ratio is controlled at 0.4-0.

5. Step 4: Circulate excavation and support operations until the tunnel is through After completing the above three steps, 1m of tunnel excavation is completed. The two steps of oscillation cutting and transportation and temporary support and anchor protection are repeated until several 10m deep holes in the first step are milled, which means that one stage of tunnel excavation is completed; the three steps of drilling-pulse hydraulic fracturing-oscillation cutting and transportation-temporary support and anchor protection are repeated until the tunnel excavation is completed.

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