Integrated equipment for tunnel expanding excavation and expanding excavation method

Abstract

The invention relates to the technical field of tunnel construction, in particular to integrated equipment for tunnel expanding excavation and an expanding excavation method. The equipment comprises a cutting assembly and a rock breaking assembly which are integrally arranged on a vehicle body; in the cutting assembly, a first sliding base is movably arranged on the vehicle body; one end of the length adjusting assembly is hinged to the first sliding base, and the other end of the length adjusting assembly is connected with the sawing mechanism. One end of the pitching angle adjusting assembly is hinged to the first sliding base, and the other end of the pitching angle adjusting assembly is hinged to the length adjusting assembly. In the rock breaking assembly, a second sliding base is movably arranged on the vehicle body; the crushing hammer head is connected with the second sliding base through a swing assembly. According to the method, tunnel expanding excavation is completed through the equipment. According to the invention, expanding excavation of the local area of the section can be realized, and the method is suitable for expanding excavation of the small-diameter tunnel section; when the small end face of the tunnel is excavated in an expanding mode, auxiliary equipment is not needed for construction, the expanding excavation procedure is greatly simplified, and the expanding excavation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and particularly relates to an integrated device and a method for expanding a tunnel excavation. Background Art

[0002] At present, the expansion of existing tunnels mainly relies on blasting methods. During the expansion process, a large amount of manpower and material resources are consumed, and the overall structure of the surrounding rock is greatly disturbed, affecting the stability of the overall structure. In addition, most of the existing tunnel expansion equipment is mainly used to achieve the overall expansion of the tunnel cross-section, and it is difficult to achieve the expansion of local areas of the cross-section. The structure of the whole machine equipment is complex and the size is relatively large, which is not suitable for the expansion of tunnel cross-sections with small diameters. Some equipment used for the expansion of small tunnel end faces also requires other equipment to assist in construction operations. The entire expansion operation process has many procedures and cannot achieve continuous mechanized construction, resulting in low expansion efficiency.

[0003] In summary, it is necessary to develop an integrated device and a method for expanding a tunnel excavation to solve the problems existing in the existing tunnel expansion equipment, such as the difficulty in achieving the expansion of local areas of the cross-section, the unsuitability for the expansion of tunnel cross-sections with small diameters, and the need to rely on auxiliary equipment for construction during the expansion of small tunnel end faces. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated device and a method for expanding a tunnel excavation, and the specific technical solutions are as follows:

[0005] In the first aspect, the present invention provides an integrated device for expanding a tunnel excavation, including a vehicle body, a cutting assembly, and a rock-breaking assembly; a first traveling wheel pair is arranged at the bottom of the vehicle body; both the cutting assembly and the rock-breaking assembly are movably arranged on the vehicle body along the length direction of the vehicle body;

[0006] The cutting assembly includes a first sliding base, a length adjustment assembly, a pitching angle adjustment assembly, and a sawing mechanism; the first sliding base is movably arranged on the vehicle body; one end of the length adjustment assembly is hinged to the first sliding base, and the other end is connected to the sawing mechanism; one end of the pitching angle adjustment assembly is hinged to the first sliding base, and the other end is hinged to the length adjustment assembly;

[0007] The rock-breaking assembly includes a second sliding base, a swinging assembly, and a rock-breaking hammer; the second sliding base is movably arranged on the vehicle body; the rock-breaking hammer is connected to the second sliding base through the swinging assembly.

[0008] Optionally, the rock-breaking assembly further includes a rotating shaft and a mounting support; an installation groove for installing the rotating shaft is provided on the second sliding base; both ends of the rotating shaft are rotatably connected to the inner wall of the installation groove; one end of the mounting support is located inside the installation groove and is connected to the rotating shaft, while the other end is located outside the installation groove and is connected to the swing assembly.

[0009] Optionally, the swing assembly includes a second telescopic arm, a second yaw oil cylinder, a swing oil cylinder, and a lifting oil cylinder; one end of the second telescopic arm is hinged to the mounting support, and the other end is hinged to the crushing hammer head; one end of the second yaw oil cylinder is a fixed end and is connected to the second sliding base, while the other end is a working end and is hinged to the second telescopic arm; one end of the swing oil cylinder is a fixed end and is hinged to the second telescopic arm, while the other end is a working end and is hinged to the crushing hammer head; one end of the lifting oil cylinder is a fixed end and is hinged to the mounting support, while the other end is a telescopic end and is hinged to the second telescopic arm.

[0010] Optionally, the length adjustment assembly includes a first telescopic arm; one end of the first telescopic arm is hinged to the first sliding base, and the other end is connected to the sawing mechanism;

[0011] The cutting assembly further includes a first yaw oil cylinder; one end of the first yaw oil cylinder is a fixed end and is hinged to the first sliding base, while the other end is a working end and is hinged to the first telescopic arm.

[0012] Optionally, the pitch angle adjustment assembly includes a side support oil cylinder, one end of which is hinged to the first sliding base, and the other end is hinged to the first telescopic arm.

[0013] Optionally, the integrated equipment for tunnel excavation further includes a guide rail assembly and a drive assembly; the guide rail assembly includes a first guide rail and a second guide rail; both the first guide rail and the second guide rail are symmetrically arranged along the length direction of the vehicle body, and one end of each of them close to the vehicle head is provided on the vehicle body, while the other end far from the vehicle head extends outside the vehicle tail; the cutting assembly and the rock-breaking assembly are both provided on the first guide rail and the second guide rail; the drive assembly is provided on the vehicle body and includes a first drive member and a second drive member; the working end of the first drive member is connected to the first sliding base; the working end of the second drive member is connected to the second sliding base.

[0014] Optionally, the integrated equipment for tunnel expansion also includes a lifting and telescopic support assembly; the lifting and telescopic support assembly includes a first lifting and telescopic support unit and a second lifting and telescopic support unit; the first lifting and telescopic support unit is arranged below the first guide rail located outside the rear of the vehicle, one end of which is a fixed end and is connected to the first guide rail, and the other end is a telescopic end and is telescopically arranged toward the ground; the second lifting and telescopic support unit is arranged below the second guide rail located outside the rear of the vehicle, one end of which is a fixed end and is connected to the second guide rail, and the other end is a telescopic end and is telescopically arranged toward the ground.

[0015] Optionally, the integrated equipment for tunnel excavation further includes a telescopic support shoe assembly; the telescopic support shoe assembly includes a first telescopic support shoe single piece and a second telescopic support shoe single piece; the first telescopic support shoe single piece and the second telescopic support shoe single piece are symmetrically arranged on both sides of the vehicle body.

[0016] Optionally, the first row of wheel pairs are driving wheel pairs; and also includes a second row of wheel pairs; the second row of wheel pairs are driven wheel pairs and are arranged at the bottom of the guide rail assembly located outside the rear of the vehicle.

[0017] Optionally, the integrated equipment for tunnel excavation further includes a main controller disposed on the vehicle body; the main controller is connected to the cutting assembly, the rock breaking assembly, the driving assembly, the telescopic support assembly and the telescopic support shoe assembly.

[0018] In a second aspect, the present invention provides a tunnel excavation method using the integrated equipment for tunnel excavation, comprising:

[0019] Step S1, driving the vehicle body to a predetermined position; the main controller opens the telescopic support shoe assembly to support the tunnel walls on both sides; the main controller opens the telescopic support assembly to support the ground;

[0020] Step S2, the main controller starts the cutting assembly to cut the tunnel section; the main controller starts the first driving member to drive the first sliding base to link the cutting assembly to cut the tunnel section back and forth along the guide rail assembly to form a slit; after the cutting operation is completed, the main controller controls the cutting assembly to return to the initial position;

[0021] Step S3, the main controller starts the rock breaking assembly to dig the cross section along the cut; the main controller starts the second driving member to drive the second sliding base to link the rock breaking assembly to dig the cross section back and forth along the guide rail assembly; after completing the cross section digging operation, the main controller controls the rock breaking assembly to return to the initial position;

[0022] Step S4, the main controller retracts the telescopic support shoe assembly and the lifting and retracting support assembly;

[0023] Step S5: Repeat steps S1 - S4 until the excavation of the entire tunnel section is completed.

[0024] Applying the technical solution of the present invention has at least the following beneficial effects:

[0025] An integrated device and excavation method for tunnel excavation provided by the present invention integrate a cutting component and a rock-breaking component on the vehicle body, having the advantages of compact structure and small space occupation ratio, being able to realize the excavation of local areas of the section, and being suitable for the excavation of small-diameter tunnel sections; when excavating the small end face of the tunnel, it does not require the construction of auxiliary equipment, greatly simplifies the excavation process, and improves the excavation efficiency; in addition, the excavation method of cutting first and then crushing has little disturbance to the overall structure of the surrounding rock and little impact on the stability of the overall tunnel structure; the automated operation is realized through the main controller, greatly improving the excavation efficiency and reducing the labor intensity of workers; furthermore, on the basis of adopting the cutting component and the rock-breaking component, combined with the guide rail component and the driving component, the operation volume of the vehicle body parked at a single predetermined position is greatly increased, thereby improving the excavation efficiency; during the excavation operation, the use of the telescopic support shoe component and the telescopic support component can improve the stability of the excavation operation.

[0026] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0028] Figure 1 is the front view structural schematic diagram of an integrated device for tunnel excavation in an embodiment of the present invention;

[0029] Figure 2 is the top view structural schematic diagram of an integrated device for tunnel excavation in an embodiment of the present invention;

[0030] Figure 3 is the structural schematic diagram of the cutting component in an embodiment of the present invention;

[0031] Figure 4 is the structural schematic diagram of the rock-breaking component in an embodiment of the present invention;

[0032] Among them, 1. Vehicle body, 1.1. First running wheel pair, 1.2. Second running wheel pair, 2. Cutting assembly, 2.1. First sliding base, 2.2. Length adjustment assembly, 2.3. Pitching angle adjustment assembly, 2.4. Sawing mechanism, 2.5. First yaw oil cylinder, 3. Rock breaking assembly, 3.1. Second sliding base, 3.2. Crushing hammer head, 3.3. Rotating shaft, 3.4. Mounting support, 3.5. Second telescopic arm, 3.6. Second yaw oil cylinder, 3.7. Swing oil cylinder, 3.8. Lifting oil cylinder, 4. Guide rail assembly, 5. Driving assembly, 6. Telescopic support assembly, 7. Telescopic support shoe assembly. Detailed implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0034] Embodiment:

[0035] See Figures 1-4 , an integrated device for tunnel excavation and expansion, including a vehicle body 1, a cutting assembly 2 and a rock breaking assembly 3; a first running wheel pair 1.1 (or crawler) is arranged at the bottom of the vehicle body 1; the cutting assembly 2 and the rock breaking assembly 3 are both movably arranged on the vehicle body 1 along the length direction of the vehicle body 1;

[0036] The cutting assembly 2 includes a first sliding base 2.1, a length adjustment assembly 2.2, a pitching angle adjustment assembly 2.3 and a sawing mechanism 2.4; the first sliding base 2.1 is movably arranged on the vehicle body 1; one end of the length adjustment assembly 2.2 is hinged to the first sliding base 2.1, and the other end is connected to the sawing mechanism 2.4; one end of the pitching angle adjustment assembly 2.3 is hinged to the first sliding base 2.1, and the other end is hinged to the length adjustment assembly 2.2, which is convenient for realizing the pitching angle adjustment of the sawing mechanism 2.4 during cutting operations;

[0037] The rock breaking assembly 3 includes a second sliding base 3.1, a swing assembly and a crushing hammer head 3.2; the second sliding base 3.1 is movably arranged on the vehicle body 1; the crushing hammer head 3.2 is connected to the second sliding base 3.1 through the swing assembly.

[0038] See Figure 4, the rock-breaking assembly 3 further includes a rotating shaft 3.3 and a mounting support 3.4; an installation groove for installing the rotating shaft 3.3 is provided on the second sliding base 3.1; both ends of the rotating shaft 3.3 are rotatably connected to the inner wall of the installation groove; one end of the mounting support 3.4 is located inside the installation groove and is connected to the rotating shaft 3.3, while the other end is located outside the installation groove and is connected to the swing assembly.

[0039] See Figure 4 , the swing assembly includes a second telescopic arm 3.5, a second yaw oil cylinder 3.6, a swing oil cylinder 3.7, and a lifting oil cylinder 3.8; one end of the second telescopic arm 3.5 is hinged to the mounting support 3.4, and the other end is hinged to the crushing hammer head 3.2, facilitating the adjustment of the crushing distance of the crushing hammer head 3.2; one end of the second yaw oil cylinder 3.6 is a fixed end and is connected to the second sliding base 3.1, while the other end is a working end and is hinged to the second telescopic arm 3.5, and the crushing hammer head 3.2 is linked through the second telescopic arm 3.5 to realize the adjustment of the front-back swing angle of the crushing hammer head 3.2 along the length direction of the vehicle body 1; one end of the swing oil cylinder 3.7 is a fixed end and is hinged to the second telescopic arm 3.5, while the other end is a working end and is hinged to the crushing hammer head 3.2, and is used for a small-range adjustment of the pitching angle of the crushing hammer head 3.2; one end of the lifting oil cylinder 3.8 is a fixed end and is hinged to the mounting support 3.4, while the other end is a telescopic end and is hinged to the second telescopic arm 3.5, and the crushing hammer head 3.2 is linked through the second telescopic arm 3.5 to realize a large-range adjustment of the pitching angle of the crushing hammer head 3.2; the combined use of the swing oil cylinder 3.7 and the lifting oil cylinder 3.8 is beneficial to realizing the small-range adjustment and large-range adjustment of the pitching angle of the crushing hammer head 3.2, thereby improving the crushing efficiency.

[0040] See Figure 3 , the length adjustment assembly 2.2 includes a first telescopic arm; one end of the first telescopic arm is hinged to the first sliding base 2.1, and the other end is connected to the sawing mechanism 2.4. Using the first telescopic arm facilitates the adjustment of the cutting distance of the sawing mechanism 2.4;

[0041] See Figure 3 , the cutting assembly 2 further includes a first yaw oil cylinder 2.5; one end of the first yaw oil cylinder 2.5 is a fixed end and is hinged to the first sliding base 2.1, while the other end is a working end and is hinged to the first telescopic arm, and the sawing mechanism 2.4 is linked through the first telescopic arm to realize the adjustment of the front-back swing angle of the sawing mechanism 2.4 along the length direction of the vehicle body 1.

[0042] The pitching angle adjustment assembly 2.3 includes a side support oil cylinder, one end of the side support oil cylinder is hinged to the first sliding base 2.1, and the other end is hinged to the first telescopic arm.

[0043] See Figures 1-2 , the integrated equipment for tunnel excavation further includes a guide rail assembly 4 and a driving assembly 5; the guide rail assembly 4 includes a first guide rail and a second guide rail; the first guide rail and the second guide rail are symmetrically arranged along the length direction of the vehicle body 1, and one end of both of them close to the vehicle head is arranged on the vehicle body 1, while the other end far from the vehicle head extends outside the vehicle tail; the cutting assembly 2 and the rock breaking assembly 3 are arranged on both the first guide rail and the second guide rail; the driving assembly 5 is arranged on the vehicle body 1, and it includes a first driving member (specifically a motor) and a second driving member (specifically a motor); the working end of the first driving member is connected to the first sliding base 2.1; the working end of the second driving member is connected to the second sliding base 3.1.

[0044] The integrated equipment for tunnel excavation further includes a telescopic support assembly 6; the telescopic support assembly 6 includes a first telescopic support single piece and a second telescopic support single piece; the first telescopic support single piece (specifically two, and arranged at intervals) is arranged under the first guide rail located outside the vehicle tail, one end of it is a fixed end and is connected to the first guide rail, while the other end is a telescopic end and is telescopically arranged towards the ground; the second telescopic support single piece (specifically two, and arranged at intervals) is arranged under the second guide rail located outside the vehicle tail, one end of it is a fixed end and is connected to the second guide rail, while the other end is a telescopic end and is telescopically arranged towards the ground.

[0045] The integrated equipment for tunnel excavation further includes a telescopic support shoe assembly 7; the telescopic support shoe assembly 7 includes a first telescopic support shoe single piece and a second telescopic support shoe single piece; the first telescopic support shoe single piece and the second telescopic support shoe single piece are symmetrically arranged on both sides of the vehicle body 1. A first telescopic support shoe oil cylinder is arranged on the first telescopic support shoe single piece. A second telescopic support shoe oil cylinder is arranged on the second telescopic support shoe single piece.

[0046] The first wheel pair 1.1 (specifically two sets of wheel pairs) is a driving wheel pair, which is used to provide the driving force for the vehicle body 1 to move; it further includes a second wheel pair 1.2 (specifically one set of wheel pairs); the second wheel pair 1.2 is a driven wheel pair, and is arranged at the bottom of the guide rail assembly 4 located outside the vehicle tail, which is convenient to provide a supporting force for the guide rail assembly 4 and ensure the center stability during the whole vehicle operation;

[0047] The integrated equipment for tunnel excavation further includes a main controller (specifically a PLC controller) arranged on the vehicle body 1; the main controller is connected to the cutting assembly 2, the rock breaking assembly 3, the driving assembly 5, the telescopic support assembly 6 and the telescopic support shoe assembly 7.

[0048] An excavation method using the integrated equipment for tunnel excavation includes:

[0049] Step S1: driving the vehicle body 1 to a predetermined position; Figure 2 , the main controller opens the telescopic support shoe assembly 7 to tighten the tunnel walls on both sides; the main controller opens the telescopic support assembly 6 to tighten the ground;

[0050] Step S2, the main controller starts the cutting assembly 2 to cut the tunnel section; the main controller starts the first driving member to drive the first sliding base 2.1 to link the cutting assembly 2 to cut the tunnel section back and forth along the guide rail assembly 4 to form a slit; after the cutting operation is completed, the main controller controls the cutting assembly 2 to return to the initial position;

[0051] Step S3, the main controller starts the rock breaking assembly 3 to dig the cross section along the cut; the main controller starts the second driving member to drive the second sliding base 3.1 to link the rock breaking assembly 3 to dig the cross section back and forth along the guide rail assembly 4; after completing the cross section digging operation, the main controller controls the rock breaking assembly 3 to return to the initial position;

[0052] Step S4, the main controller retracts the telescopic support shoe assembly 7 and the telescopic support assembly 6;

[0053] Step S5, repeat steps S1-S4 until the excavation of the entire tunnel section is completed.

[0054] This embodiment adopts a method of cutting first and then crushing to expand and dig, which has little disturbance to the overall structure of the surrounding rock and little impact on the stability of the overall tunnel structure; the main controller realizes automated operation, which greatly improves the efficiency of expansion and digging and reduces the intensity of manual labor; furthermore, on the basis of adopting the cutting component 2 and the rock breaking component 3, combined with the guide rail component 4 and the driving component 5, the operation amount of the vehicle body 1 stopping at a single predetermined position is greatly improved, thereby improving the efficiency of expansion and digging; during the expansion and digging operation, the telescopic support shoe component 7 and the lifting and retracting support component 6 are used to improve the stability of the expansion and digging operation.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated device for tunnel excavation, characterized in that: The vehicle comprises a vehicle body (1), a cutting assembly (2) and a rock breaking assembly (3); a first row of wheel pairs (1.1) are arranged at the bottom of the vehicle body (1); the cutting assembly (2) and the rock breaking assembly (3) are both movably arranged on the vehicle body (1) along the length direction of the vehicle body (1); The cutting assembly (2) comprises a first sliding base (2.1), a length adjustment assembly (2.2), a pitch angle adjustment assembly (2.3) and a sawing mechanism (2.4); the first sliding base (2.1) is movably arranged on the vehicle body (1); one end of the length adjustment assembly (2.2) is hinged on the first sliding base (2.1), and the other end is connected to the sawing mechanism (2.4); one end of the pitch angle adjustment assembly (2.3) is hinged on the first sliding base (2.1), and the other end is hinged to the length adjustment assembly (2.2); The rock breaking assembly (3) comprises a second sliding base (3.1), a swing assembly and a crushing hammer (3.2); the second sliding base (3.1) is movably arranged on the vehicle body (1); and the crushing hammer (3.2) is connected to the second sliding base (3.1) via the swing assembly.

2. The integrated equipment for tunnel excavation according to claim 1, characterized in that: The rock breaking assembly (3) further comprises a rotating shaft (3.3) and a mounting support (3.4); a mounting groove for mounting the rotating shaft (3.3) is provided on the second sliding base (3.1); both ends of the rotating shaft (3.3) are rotatably connected to the inner wall of the mounting groove; one end of the mounting support (3.4) is located in the mounting groove and is connected to the rotating shaft (3.3), while the other end thereof is located outside the mounting groove and is connected to the swing assembly.

3. The integrated equipment for tunnel excavation according to claim 2, characterized in that: The swing assembly comprises a second telescopic arm (3.5), a second lateral swing cylinder (3.6), a swing cylinder (3.7) and a lifting cylinder (3.8); one end of the second telescopic arm (3.5) is hinged to the mounting support (3.4), and the other end is hinged to the crushing hammer head (3.2); one end of the second lateral swing cylinder (3.6) is a fixed end and is connected to the second sliding base (3.1), and the other end is an operating end and is hinged to the second telescopic arm (3.5); one end of the swing cylinder (3.7) is a fixed end and is hinged to the second telescopic arm (3.5), and the other end is an operating end and is hinged to the crushing hammer head (3.2); one end of the lifting cylinder (3.8) is a fixed end and is hinged to the mounting support (3.4), and the other end is a telescopic end and is hinged to the second telescopic arm (3.5).

4. The integrated equipment for tunnel excavation according to claim 1, characterized in that: The length adjustment component (2.2) comprises a first telescopic arm; one end of the first telescopic arm is hinged to the first sliding base (2.1), and the other end is connected to the sawing mechanism (2.4); The cutting assembly (2) further comprises a first lateral swing cylinder (2.5); one end of the first lateral swing cylinder (2.5) is a fixed end and is hinged to the first sliding base (2.1), while the other end is an operating end and is hinged to the first telescopic arm.

5. The integrated equipment for tunnel excavation according to claim 4, characterized in that: The pitch angle adjustment assembly (2.3) comprises a side support cylinder, one end of which is hinged to the first sliding base (2.1), and the other end of which is hinged to the first telescopic arm.

6. The integrated equipment for tunnel excavation according to any one of claims 1 to 5, characterized in that: It also includes a guide rail assembly (4) and a drive assembly (5); the guide rail assembly (4) includes a first guide rail and a second guide rail; the first guide rail and the second guide rail are symmetrically arranged along the length direction of the vehicle body (1), and the ends of the two closer to the front of the vehicle are arranged on the vehicle body (1), while the ends away from the front of the vehicle extend outside the rear of the vehicle; the cutting assembly (2) and the rock breaking assembly (3) are arranged on the first guide rail and the second guide rail; the drive assembly (5) is arranged on the vehicle body (1), and includes a first drive member and a second drive member; the working end of the first drive member is connected to the first sliding base (2.1); the working end of the second drive member is connected to the second sliding base (3.1).

7. The integrated equipment for tunnel excavation according to claim 6, characterized in that: It also includes a telescopic support component (6); the telescopic support component (6) includes a first telescopic support unit and a second telescopic support unit; the first telescopic support unit is arranged below the first guide rail located outside the rear of the vehicle, one end of which is a fixed end and connected to the first guide rail, and the other end is a telescopic end and is telescopically arranged toward the ground; the second telescopic support unit is arranged below the second guide rail located outside the rear of the vehicle, one end of which is a fixed end and connected to the second guide rail, and the other end is a telescopic end and is telescopically arranged toward the ground.

8. The integrated equipment for tunnel excavation according to claim 7, characterized in that: It also comprises a telescopic support shoe assembly (7); the telescopic support shoe assembly (7) comprises a first telescopic support shoe single piece and a second telescopic support shoe single piece; the first telescopic support shoe single piece and the second telescopic support shoe single piece are symmetrically arranged on both sides of the vehicle body (1).

9. The integrated equipment for tunnel excavation according to claim 8, characterized in that: The first row of wheel pairs (1.1) are driving wheel pairs; and the second row of wheel pairs (1.2) are also included; the second row of wheel pairs (1.2) are driven wheel pairs and are arranged at the bottom of the guide rail assembly (4) located outside the rear of the vehicle; It also includes a main controller arranged on the vehicle body (1); the main controller is connected to the cutting assembly (2), the rock breaking assembly (3), the driving assembly (5), the telescopic support assembly (6) and the telescopic support shoe assembly (7).

10. A tunnel excavation method using the integrated tunnel excavation device according to claim 9, characterized in that: include: Step S1, driving the vehicle body (1) to a predetermined position; the main controller opens the telescopic support shoe assembly (7) to support the tunnel walls on both sides; the main controller opens the telescopic support assembly (6) to support the ground; Step S2, the main controller starts the cutting assembly (2) to cut the tunnel section; the main controller starts the first driving member to drive the first sliding base (2.1) to link the cutting assembly (2) to cut the tunnel section back and forth along the guide rail assembly (4) to form a slit; after the cutting operation is completed, the main controller controls the cutting assembly (2) to return to the initial position; Step S3, the main controller starts the rock breaking component (3) to expand the cross section along the cut; the main controller starts the second driving member to drive the second sliding base (3.1) to link the rock breaking component (3) to expand the cross section back and forth along the guide rail component (4); after the cross section expansion operation is completed, the main controller controls the rock breaking component (3) to return to the initial position; Step S4, the main controller retracts the telescopic support shoe assembly (7) and the telescopic support assembly (6); Step S5, repeat steps S1-S4 until the excavation of the entire tunnel section is completed.

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