A tunnel cantilever tunnel boring machine excavation and support integrated structure

Abstract

The present invention provides an integrated excavation and support structure for a tunnel cantilever tunnel boring machine, which relates to the technical field of tunnel construction. It comprises a tunnel boring machine body, wherein the front and rear side walls of the tunnel boring machine body are fixedly connected to a set of sliding rails, wherein a support platform is slidably connected in the sliding rails along the left and right directions, and a hoisting mechanism, a transmission mechanism and a temporary support mechanism are sequentially installed on the upper surface of the support platform from left to right; the temporary support mechanism comprises a control component, wherein the upper end of the control component is fixedly connected to a first support component, and a set of second support components are provided on the front and rear sides of the control component. The temporary support mechanism is used to temporarily support the tunnel section to be supported, thereby effectively preventing the occurrence of safety accidents such as surrounding rock collapse and falling blocks during the support process, improving the safety of the construction environment, and the tunnel boring machine body can still perform rock and soil crushing while performing the support action, thereby improving the overall construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to an integrated excavation and support structure of a tunnel cantilever roadheader. Background Art

[0002] With the continuous increase in urbanization and the ever-expanding scale of urban construction, the construction of underground tunnels, such as those for water supply, is increasing. To minimize the impact of blasting on the surrounding environment, cantilever tunnel boring machines (TBMs) are an ideal choice for urban tunnel construction.

[0003] Traditional tunnel construction typically uses a phased approach, first crushing and excavating the rock and soil, then supporting the excavated area. This approach is not only inefficient but also poses safety risks. In soft or unstable geological conditions, delayed support can easily lead to tunnel collapse or landslides. Summary of the Invention

[0004] The present invention provides an integrated excavation and support structure for a tunnel cantilever roadheader, which is used to solve the defects of the prior art of first crushing and excavating rock and soil and then supporting the excavated area, which is inefficient and may cause certain safety hazards.

[0005] The present invention provides an integrated excavation and support structure for a tunnel cantilever roadheader, comprising a roadheader body, wherein the front and rear side walls of the roadheader body are fixedly connected to a set of sliding rails, a support platform is slidably connected in the sliding rails in the left and right directions, and a hoisting mechanism, a transmission mechanism, and a temporary support mechanism are sequentially installed on the upper surface of the support platform from left to right;

[0006] The temporary support mechanism includes a control component, the upper end of the control component is fixedly connected to a first support component, and a group of second support components are provided on the front and rear sides of the control component.

[0007] Preferably, several groups of traveling wheels are installed at the bottom of the support platform, and the traveling wheels move in the sliding track. The front and rear side walls of the support platform are fixedly connected to a group of stabilizing mechanisms. The stabilizing mechanisms include a mounting frame, which is fixedly connected to the side wall of the support platform. The lower surface of the mounting frame is fixedly connected to a drive box, and a support block extending from the lower bottom surface of the drive box and moving in the up and down directions is provided in the drive box.

[0008] Preferably, the transmission mechanism includes a lifting plate, and a group of electric telescopic rods are provided at the front and rear ends of the lifting plate. The electric telescopic rods are fixedly connected to the side walls of the support platform, and the telescopic ends of the electric telescopic rods are fixedly connected to the lower bottom surface of the lifting plate. The upper surface of the lifting plate is provided with a plurality of sliding grooves along the left and right directions, and a sliding block is slidably connected in the sliding groove. The sliding block is driven by a driving assembly provided in the sliding groove, and the upper end of the sliding block is fixedly connected to the carrier frame.

[0009] Preferably, the carrier includes a drive mounting portion, a horizontal placement portion and an inclined plane limiting portion, the drive mounting portion is arranged on the left side of the horizontal placement portion, the inclined plane limiting portion is arranged on the right side of the horizontal placement portion, and a plurality of electric telescopic rods moving in the left and right directions are arranged on the right side wall of the drive mounting portion, and the height of the inclined plane limiting portion close to the horizontal placement portion is lower than the height of the side away from the horizontal placement portion.

[0010] Preferably, the control component includes an electric telescopic rod three, which is fixedly connected to the upper surface of the support platform. The output end of the electric telescopic rod three is fixedly connected to the trapezoidal control frame. The front and rear side walls of the trapezoidal control frame are both provided with a control groove one. A control rod is slidably connected in the control groove one. The control rod is fixedly connected to the second support component along the front and rear directions. The top surface of the trapezoidal control frame is fixedly connected to a connecting rod, and the first support component is fixedly connected to the upper end of the connecting rod.

[0011] Preferably, the first support assembly includes a support frame 1, which is fixedly connected to the upper end of the connecting rod, and a mounting cavity and several control cavities arranged on the left side of the mounting cavity and connected to the mounting cavity are provided in the support frame 1, a control panel 1 is connected to the mounting cavity in a sliding manner along the left and right directions, a spring 1 is fixedly connected between the right side wall of the control panel 1 and the inner wall of the mounting cavity, a plurality of clamping blocks 1 are fixedly connected to the left side wall of the control panel 1, the clamping block 1 slides through the left side wall of the mounting cavity, a plurality of control blocks 1 corresponding to the control cavity are also fixedly connected to the left side wall of the control panel 1, the control block 1 is connected to the control cavity in a sliding manner along the left and right directions, and a group of guardrail assemblies are correspondingly provided in each control cavity.

[0012] Preferably, a mounting groove is provided in the bottom surface of the control cavity, and control block 1 is located on the right side of the mounting groove. The guardrail assembly includes a guardrail block and a control block 2. The guardrail block is connected to the mounting groove in a sliding manner in the up and down directions. A spring 2 is fixedly connected between the guardrail block and the bottom surface of the mounting groove. The guardrail block slides through the top surface of the control cavity in the up and down directions. A control hole is provided on the guardrail block that penetrates in the left and right directions. A slope 1 is provided on the bottom surface below the control hole. Control block 2 is connected to the control cavity in a sliding manner in the left and right directions. Control block 2 slides through the left side wall of the control cavity. A slope 2 matching the slope 1 is provided on the lower side of the right end of control block 2. A limit groove 1 is provided on the front and rear side walls of control block 2. A limit rod is fixedly connected to the front and rear inner walls of the control cavity, and the limit rod is slidably connected in the limit groove 1.

[0013] Preferably, the front and rear side walls of the control panel 1 are both provided with inclined planes 3, the front and rear side walls of the support frame 1 are both provided with a group of positioning columns connected in a sliding manner in the front and rear directions, the positioning columns are provided with inclined planes 4 at one end close to the control panel 1, inclined planes 4 cooperate with inclined planes 3, and the front and rear side walls of the support frame are both provided with a mounting hole, the second support assembly includes a support frame 2, the support frame 2 is fixedly connected to a mounting rod on one side close to the support frame, the mounting rod is slidably connected in the mounting hole in the front and rear direction, a spring 3 is fixedly connected between the mounting rod and the inner wall of the mounting hole, the control rod is fixedly connected to the side wall of the support frame 2 close to the support frame, a limiting groove 2 is provided on the side of the support frame 2 close to the support frame 1, a control groove 2 connected to the limiting groove 2 is also provided in the support frame 2, the control panel 2 is slidably connected in the control groove 2, and the upper surface of the control panel 2 is uniform A plurality of conical grooves are provided, and a spring six is ​​fixedly connected between the control plate 2 and the inner wall of the control groove 2. A plurality of accommodating cavities are provided above the control groove 2. The accommodating cavities are connected to the control groove 2 through the connecting groove. A control block 3 is slidably connected in the connecting groove. A slope 5 is provided on the left side of the end of the control block 3 away from the control plate 2, and a slope 6 is provided on the end of the control block 3 close to the control plate 2. A limiting groove 3 is provided on the side wall of the connecting groove. The side wall of the control block 3 is fixedly connected to the limiting plate, and the limiting plate is slidably connected in the limiting groove 3. A spring four is fixedly connected between the limiting plate and the inner wall of the limiting groove 3. A clamping block 2 is slidably connected in the accommodating cavity along the left and right directions, and the clamping block 2 slides along the left and right directions through the side wall of the accommodating cavity. A spring five is fixedly connected between the clamping block 2 and the inner wall of the accommodating cavity, and a slope 7 is provided on the lower end of the clamping block 2 close to the control block 3.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By setting up a temporary support mechanism, temporary support can be provided to the tunnel section to be supported, effectively preventing the occurrence of safety accidents such as surrounding rock collapse and falling blocks during the support process, thereby improving the safety of the construction environment. Moreover, while performing the support action, the tunnel boring machine body can still perform the rock and soil crushing action, thereby improving the overall construction efficiency and accelerating the progress of tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0019] Figure 3 yes Figure 2 Schematic diagram of the cross section at AA in the middle;

[0020] Figure 4 yes Figure 3 The enlarged schematic diagram of point B in the middle;

[0021] Figure 5 yes Figure 3 Enlarged diagram of point C in the middle

[0022] Figure 6 yes Figure 5 The enlarged schematic diagram of point D in the middle;

[0023] Figure 7 yes Figure 3 Schematic diagram of the cross section at EE;

[0024] Figure 8 yes Figure 3 Schematic diagram of the cross section at FF;

[0025] Figure 9 yes Figure 7 Schematic diagram of the cross section at GG;

[0026] Figure 10 It is a three-dimensional structural diagram of the transmission mechanism.

[0027] Reference numerals:

[0028] 1. Tunneling machine body; 2. Sliding track; 3. Support platform; 4. Hoisting mechanism; 5. Transmission mechanism; 6. Temporary support mechanism; 7. First support assembly; 8. Second support assembly; 9. Travel wheel; 10. Mounting frame; 11. Drive box; 12. Support block; 13. Lifting plate; 14. Electric telescopic rod 1; 15. Sliding groove; 16. Sliding block; 17. Carrying frame; 171. Drive mounting part; 172. Horizontal placement part; 173. Inclined surface limiting part; 18. Electric telescopic rod 2; 19. Electric telescopic rod 3; 20. Trapezoidal control frame; 21. Control groove 1; 22. Control rod; 23. Connecting rod; 24. Support frame 1; 25. Mounting cavity; 26. Control cavity; 27. Control board 1; 28. Spring 1; 2 9. Clamping block one; 30. Control block one; 31. Mounting slot; 32. Guardrail block; 33. Control block two; 34. Spring two; 35. Control hole; 36. Inclined surface one; 37. Inclined surface two; 38. Limiting slot one; 39. Limiting rod; 40. Inclined surface three; 41. Positioning column; 42. Inclined surface four; 43. Mounting hole; 44. Support frame two; 45. Mounting rod; 46. Spring three; 47. Limiting slot two; 48. Control slot two; 49. Control plate two; 50. Conical slot; 51. Accommodating cavity; 52. Connecting slot; 53. Control block three; 54. Inclined surface five; 55. Inclined surface six; 56. Limiting slot three; 57. Limiting plate; 58. Spring four; 59. Clamping block two; 60. Spring five; 61. Inclined surface seven; 62. Spring six DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0030] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is 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.

[0031] Example 1: The embodiment of the present invention provides an integrated excavation and support structure for a tunnel cantilever boring machine, such as Figure 1 As shown, the tunnel boring machine comprises a main body 1, the front and rear side walls of the tunnel boring machine main body 1 are fixedly connected to a set of sliding rails 2, a support platform 3 is slidably connected in the sliding rails 2 along the left and right directions, and a hoisting mechanism 4, a transmission mechanism 5 and a temporary support mechanism 6 are installed on the upper surface of the support platform 3 in sequence from left to right;

[0032] The temporary support mechanism 6 includes a control assembly, the upper end of which is fixedly connected to a first support assembly 7, and a group of second support assemblies 8 are provided on both the front and rear sides of the control assembly.

[0033] In this embodiment, the hoisting mechanism 4 is a prior art, such as a hoisting device for smart construction engineering disclosed in CN119858857A.

[0034] The working principle and beneficial effects of the above technical solution are:

[0035] During tunnel construction, the tunnel boring machine 1 first crushes and excavates the rock and soil. Then, through the coordination of the hoisting mechanism 4 and the conveying mechanism 5, segments of steel frames (arc-shaped) are sequentially delivered into the temporary support mechanism 6. Inside the temporary support mechanism 6, the steel frames are spliced ​​to form a support frame that supports the inner wall of the tunnel. During the steel frame transportation process, the temporary support mechanism 6 provides temporary support for the tunnel section to be supported, effectively preventing safety accidents such as surrounding rock collapse and rock fragmentation during the support process, improving the safety of the construction environment. While performing the support operation, the tunnel boring machine 1 can still perform rock and soil crushing operations, improving overall construction efficiency and accelerating the progress of tunnel construction.

[0036] Example 2: Based on Example 1, Figure 1-3 As shown, several groups of traveling wheels 9 are installed at the bottom of the support platform 3, and the traveling wheels 9 move in the sliding track 2. The front and rear side walls of the support platform 3 are fixedly connected to a group of stabilizing mechanisms. The stabilizing mechanisms include a mounting frame 10, and the mounting frame 10 is fixedly connected to the side wall of the support platform 3. The lower surface of the mounting frame 10 is fixedly connected to a driving box 11, and a support block 12 extending from the lower bottom surface of the driving box 11 and moving in the up and down directions is provided in the driving box 11.

[0037] The working principle and beneficial effects of the above technical solution are:

[0038] When the excavation depth reaches the level that requires support, the position of the support platform 3 is first adjusted by the traveling wheel 9, and then the support block 12 is extended from the drive box 11 to support the support platform 3, so that the traveling wheel 9 is separated from the sliding track 2, thereby improving the stability of the support platform 3 during support construction through auxiliary support. At the same time, by separating the traveling wheel 9 from the sliding track 2, it is ensured that the movement of the tunnel boring machine body 1 will not affect the support platform 3, thereby improving the flexibility of the tunnel boring machine body 1 during support construction.

[0039] Example 3: Based on any one of Examples 1-2, Figure 1-3 、 Figure 10 As shown, the transmission mechanism 5 includes a lifting plate 13, and a group of electric telescopic rods 14 are provided at the front and rear ends of the lifting plate 13. The electric telescopic rods 14 are fixedly connected to the side walls of the support platform 3, and the telescopic ends of the electric telescopic rods 14 are fixedly connected to the lower bottom surface of the lifting plate 13. The upper surface of the lifting plate 13 is provided with a plurality of sliding grooves 15 along the left and right directions. A sliding block 16 is slidably connected in the sliding groove 15. The sliding block 16 is driven by a driving component provided in the sliding groove 15, and the upper end of the sliding block 16 is fixedly connected to a carrier frame 17.

[0040] Preferably, the carrier 17 includes a drive mounting portion 171, a horizontal placement portion 172 and a slope limiting portion 173. The drive mounting portion 171 is arranged on the left side of the horizontal placement portion 172, and the slope limiting portion 173 is arranged on the right side of the horizontal placement portion 172. A plurality of electric telescopic rods 18 that move in the left and right directions are arranged on the right side wall of the drive mounting portion 171. The height of the slope limiting portion 173 close to the horizontal placement portion 172 is lower than the height on the side away from the horizontal placement portion 172.

[0041] The working principle and beneficial effects of the above technical solution are:

[0042] When transporting the steel frame, first, the steel frame is lifted from the ground by the lifting mechanism 4 and placed on the horizontal placement part 172. The height of the load-bearing frame 17 is adjusted by the extension and contraction of the electric telescopic rod 14. Then, the drive assembly drives the load-bearing frame 17 to approach the temporary support mechanism 6 until the load-bearing frame 17 contacts the temporary support mechanism 6. Then, the steel frame is pushed from the load-bearing frame 17 to the temporary support mechanism 6 by the extension of the electric telescopic rod 2 18, thereby realizing the action of transporting the steel frame to the temporary support mechanism 6.

[0043] By setting the inclined limiting part 173, the left and right positions of the steel frame can be restricted during the movement of the supporting frame 17 in the left and right directions, thereby preventing the steel frame from flying out. In the process of pushing the steel frame from the supporting frame 17 to the temporary support mechanism 6, the height of the steel frame can be increased, thereby ensuring the smooth pushing out of the steel frame.

[0044] Example 4: Based on any one of Examples 1-3, Figure 1-9 As shown, the control assembly includes an electric telescopic rod 3 19, which is fixedly connected to the upper surface of the support platform 3, and the output end of the electric telescopic rod 3 19 is fixedly connected to the trapezoidal control frame 20, and the front and rear side walls of the trapezoidal control frame 20 are both provided with a control groove 1 21, and a control rod 22 is slidably connected in the control groove 1 21, and the control rod 22 is fixedly connected to the second support assembly 8 along the front and rear directions, and a connecting rod 23 is fixedly connected to the top surface of the trapezoidal control frame 20, and the first support assembly 7 is fixedly connected to the upper end of the connecting rod 23.

[0045] Preferably, the first support assembly 7 includes a support frame 24, which is fixedly connected to the upper end of the connecting rod 23. A mounting cavity 25 and several control cavities 26 arranged on the left side of the mounting cavity 25 and connected to the mounting cavity 25 are provided in the support frame 24. A control panel 27 is slidably connected to the mounting cavity 25 along the left and right directions. A spring 28 is fixedly connected between the right side wall of the control panel 27 and the inner wall of the mounting cavity 25. Several clamping blocks 29 are fixedly connected to the left side wall of the control panel 27. The clamping blocks 29 slide through the left side wall of the mounting cavity 25. Several control blocks 30 corresponding to the control cavities 26 are also fixedly connected to the left side wall of the control panel 27. The control blocks 30 are slidably connected to the control cavity 26 along the left and right directions. A group of guardrail components are correspondingly provided in each control cavity 26.

[0046] Preferably, a mounting groove 31 is provided on the inner bottom surface of the control cavity 26, and the control block 1 30 is located on the right side of the mounting groove 31. The guardrail assembly includes a guardrail block 32 and a control block 2 33. The guardrail block 32 is slidably connected in the mounting groove 31 along the up and down directions, and a spring 2 34 is fixedly connected between the guardrail block 32 and the inner bottom surface of the mounting groove 31. The guardrail block 32 slides through the top surface of the control cavity 26 along the up and down directions. A control hole 35 is provided on the guardrail block 32 and penetrates the left and right directions. The lower bottom surface of the control hole 35 is provided with an inclined surface 1 36. The control block 2 33 is slidably connected in the control cavity 26 along the left and right directions. The control block 2 33 slides through the left side wall of the control cavity 26, and the lower side of the right end of the control block 2 33 is provided with an inclined surface 2 37 that matches the inclined surface 1 36. The front and rear side walls of the control block 2 33 are both provided with a limit groove 1 38, and the front and rear inner walls of the control cavity 26 are both fixedly connected to a limit rod 39, which is slidably connected in the limit groove 1 38.

[0047] Preferably, the front and rear side walls of the control panel 27 are provided with a slope 3 40, the front and rear side walls of the support frame 24 are provided with a group of positioning columns 41 that are slidably connected along the front and rear directions, and the positioning columns 41 are provided with a slope 42 at one end close to the control panel 27, and the slope 42 cooperates with the slope 3 40. The front and rear side walls of the support stand 3 are provided with a mounting hole 43, and the second support assembly 8 includes a support frame 2 44. The support frame 2 44 is fixedly connected to a mounting rod 45 on one side close to the support stand 3. The mounting rod 45 is connected to the mounting hole 43 by sliding in the front-back direction. A spring 3 46 is fixedly connected between the mounting rod 45 and the inner wall of the mounting hole 43. The control rod 22 is fixedly connected to the side wall of the support frame 2 44 near the support frame 1 24. A limiting groove 2 47 is provided on the side of the support frame 2 44 near the support frame 1 24. A control groove 2 48 connected to the limiting groove 2 47 is also provided in the support frame 2 44. A control plate 2 49 is slidably connected in the control groove 2 48. The upper surface of the control plate 2 49 is evenly provided with a plurality of The conical groove 50 is fixedly connected to the inner wall of the control plate 2 49 and the control groove 2 48 by a spring 62. A plurality of accommodating cavities 51 are provided above the control groove 2 48. The accommodating cavities 51 are connected to the control groove 2 48 through a connecting groove 52. A control block 3 53 is slidably connected in the connecting groove 52. A slope 54 is provided on the left side of the end of the control block 3 53 away from the control plate 2 49. A slope 6 55 is provided on the end of the control block 3 53 close to the control plate 2 49. A limiting groove 3 56 is provided on the side wall of the connecting groove 52. The side wall of the control block three 53 is fixedly connected with a limit plate 57, and the limit plate 57 is slidably connected in the limit groove three 56. A spring four 58 is fixedly connected between the limit plate 57 and the inner wall of the limit groove three 56. A clamping block two 59 is slidably connected in the accommodating cavity 51 along the left and right directions. The clamping block two 59 slides along the left and right directions and passes through the side wall of the accommodating cavity 51. A spring five 60 is fixedly connected between the clamping block two 59 and the inner wall of the accommodating cavity 51. The lower end of the clamping block two 59 on the side close to the control block three 53 is provided with a slope seven 61.

[0048] The working principle and beneficial effects of the above technical solution are:

[0049] When the support platform 3 reaches the supporting position, the electric telescopic rod 3 19 is controlled to extend, thereby pushing the trapezoidal control frame 20 to rise. As the trapezoidal control frame 20 rises, the support frame 1 24 moves upward under the push of the connecting rod 23, and the control rod 22 slides in the control groove 1 21, thereby pushing the two support frames 2 44 away from each other until the support frame 1 24 and the support frame 2 44 are in contact with the inner wall of the tunnel. At the same time, the support frame 1 24 and the support frame 2 44 are connected to each other, thereby realizing temporary support for the inner wall of the tunnel; thereafter, the steel frame is placed in the support frame 1 24, and then the staff pushes the steel frame into the support frame 2 44. The support frame is connected to the first support frame 24 and the second support frame 44 by the staff. After the steel frames are connected to form the support frame, the electric telescopic rod 3 19 is retracted to retract the support frame 1 24 and the second support frame 44 to the initial position, and the support frame is detached from the top of the support frame 1 24 and the second support frame 44, and stays in the supporting position through the support frame 1 24 and the second support frame 44, thereby realizing the temporary supporting action at the position. The setting of the positioning column 41 ensures the accuracy of the connection position of the support frame 1 24 and the second support frame 44, thereby ensuring the smooth movement of the steel frame between the support frame 1 24 and the second support frame 44.

[0050] As the carrier frame 17 approaches the support frame 1 24, the control block 2 33 is squeezed and moves toward the direction of the support frame 1 24. With the cooperation of the inclined surface 1 36 and the inclined surface 2 37, the guardrail block 32 moves downward, making it easier to push the steel frame into the support frame 1 24. As the control block 2 33 is further squeezed, the control block 2 33 pushes the control plate 1 27 to move to the right, so that the clamping block 1 29 is retracted into the installation cavity 25, ensuring that the steel frame is pushed into the support frame 1 24 to a sufficient depth, thereby improving the stability of the steel frame in the support frame 1 24.

[0051] As the control board 1 27 moves to the right, with the cooperation of the inclined plane 3 40 and the inclined plane 4 42, the positioning column 41 moves away from the support frame 1 24, thereby pushing the control board 2 49 to move into the control groove 2 48, so that the conical groove 50 reaches the bottom of the connecting groove 52. Under the action of the spring 4 58, the control block 3 53 enters the conical groove 50, and then under the action of the spring 5 60, the clamping block 2 59 retracts into the accommodating cavity 51, making it easier for the staff to push the steel frame into the support frame 2 44.

[0052] After the carrier frame 17 leaves the support frame 1 24, the control board 1 27 moves to the left under the action of the spring 1 28, thereby pushing the clamping block 1 29 out from the installation cavity 25. At the same time, under the action of the spring 2 34, the guardrail block 32 moves upward, thereby clamping the steel frame in the support frame 1 24 through the cooperation of the guardrail block 32 and the clamping block 1 29, and pushing the control block 2 33 back to the initial position, ensuring the stable stay of the steel frame in the support frame 1 24, avoiding the accident of the steel frame falling, and improving the safety of the support process.

[0053] As the control plate 1 27 rebounds to its initial position, the control plate 2 49 rebounds under the action of the spring 6 62, and the control plate 2 49 pushes the positioning column 41 back to its initial position. Under the action of the inclined surface 6 55, the control block 3 53 returns to the connecting groove 52, and under the action of the inclined surface 54 and the inclined surface 7 61, the clamping block 2 59 extends from the accommodating cavity 51 to clamp the steel frame located in the support frame 2 44.

[0054] By making support frame 1 24 and support frame 2 44 contact with the inner wall of the tunnel, safety accidents such as surrounding rock collapse and falling blocks are avoided during the support process, thereby improving the safety of the construction environment. By setting clamping block 1 29 and clamping block 2 59, the steel frames in support frame 1 24 and support frame 2 44 will be clamped and limited when the steel frames are not transferred, thereby avoiding the steel frames from falling, thereby further improving the safety of the construction environment. At the same time, after all the steel frames are placed, the steel frames are limited by support frame 1 24 and support frame 2 44, and there is no need for staff to position the steel frames by hand, which facilitates staff to complete the connection between different steel frames, thereby improving staff work efficiency and work safety.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A tunnel cantilever boring machine excavation and support integrated structure, characterized in that: The invention comprises a tunnel boring machine body (1), wherein the front and rear side walls of the tunnel boring machine body (1) are fixedly connected to a set of sliding rails (2), a support frame (3) is slidably connected in the sliding rails (2) along the left and right directions, and a hoisting mechanism (4), a transmission mechanism (5) and a temporary support mechanism (6) are sequentially installed on the upper surface of the support frame (3) from left to right; The temporary support mechanism (6) includes a control assembly, the upper end of which is fixedly connected to a first support assembly (7), and a set of second support assemblies (8) are provided on both the front and rear sides of the control assembly; The transmission mechanism (5) includes a lifting plate (13), and a group of electric telescopic rods (14) are provided at both the front and rear ends of the lifting plate (13). The electric telescopic rods (14) are fixedly connected to the side walls of the support platform (3). The telescopic ends of the electric telescopic rods (14) are fixedly connected to the bottom surface of the lifting plate (13). The upper surface of the lifting plate (13) is provided with a plurality of sliding grooves (15) along the left and right directions. The sliding grooves (15) are slidably connected with sliding blocks (16). The sliding blocks (16) are driven by a driving assembly provided in the sliding grooves (15). The upper end of the sliding block (16) is fixedly connected to a carrier frame (17). The carrier (17) comprises a driving mounting portion (171), a horizontal placement portion (172) and an inclined plane limiting portion (173). The driving mounting portion (171) is arranged on the left side of the horizontal placement portion (172), and the inclined plane limiting portion (173) is arranged on the right side of the horizontal placement portion (172). A plurality of electric telescopic rods (18) moving in the left and right directions are arranged on the right side wall of the driving mounting portion (171). The height of the inclined plane limiting portion (173) on the side close to the horizontal placement portion (172) is lower than the height on the side away from the horizontal placement portion (172).

2. The tunnel cantilever boring machine excavation and support integrated structure according to claim 1, characterized in that: A plurality of travel wheels (9) are installed at the bottom of the support frame (3), and the travel wheels (9) move in the sliding track (2). The front and rear side walls of the support frame (3) are fixedly connected to a group of stabilizing mechanisms. The stabilizing mechanisms include a mounting frame (10), the mounting frame (10) is fixedly connected to the side wall of the support frame (3), and the lower surface of the mounting frame (10) is fixedly connected to a driving box (11). The driving box (11) is provided with a support block (12) extending from the lower bottom surface of the driving box (11) and moving in the up and down directions.

3. The tunnel cantilever boring machine excavation and support integrated structure according to claim 1, characterized in that: The control assembly comprises an electric telescopic rod three (19), the electric telescopic rod three (19) is fixedly connected to the upper surface of the support platform (3), the output end of the electric telescopic rod three (19) is fixedly connected to a trapezoidal control frame (20), the front and rear side walls of the trapezoidal control frame (20) are both provided with a control groove one (21), a control rod (22) is slidably connected in the control groove one (21), the control rod (22) is fixedly connected to the second support assembly (8) along the front and rear directions, the top surface of the trapezoidal control frame (20) is fixedly connected to a connecting rod (23), and the first support assembly (7) is fixedly connected to the upper end of the connecting rod (23).

4. The tunnel cantilever boring machine excavation and support integrated structure according to claim 3, characterized in that: The first support assembly (7) includes a support frame (24), which is fixedly connected to the upper end of the connecting rod (23). A mounting cavity (25) and a plurality of control cavities (26) arranged on the left side of the mounting cavity (25) and connected to the mounting cavity (25) are provided in the support frame (24). A control board (27) is connected to the mounting cavity (25) in a sliding manner along the left and right directions. A spring (28) is fixedly connected between the right side wall of the control board (27) and the inner wall of the mounting cavity (25). A plurality of clamping blocks (29) are fixedly connected to the left side wall of the control board (27). The clamping blocks (29) slide through the left side wall of the mounting cavity (25). A plurality of control blocks (30) corresponding to the control cavities (26) are also fixedly connected to the left side wall of the control board (27). The control blocks (30) are connected to the control cavity (26) in a sliding manner along the left and right directions. A group of guardrail assemblies is correspondingly provided in each control cavity (26).

5. The tunnel cantilever boring machine excavation and support integrated structure according to claim 4, characterized in that: The inner bottom surface of the control cavity (26) is provided with a mounting groove (31), the control block 1 (30) is located on the right side of the mounting groove (31), the guardrail assembly includes a guardrail block (32) and a control block 2 (33), the guardrail block (32) is connected to the mounting groove (31) in a sliding manner in the up-down direction, a spring 2 (34) is fixedly connected between the guardrail block (32) and the inner bottom surface of the mounting groove (31), the guardrail block (32) slides through the inner top surface of the control cavity (26) in the up-down direction, and a control hole (35) is provided on the guardrail block (32) that penetrates in the left-right direction. The bottom surface of the hole (35) is provided with an inclined surface 1 (36), the control block 2 (33) is connected to the control cavity (26) in a sliding manner along the left and right directions, the control block 2 (33) slides through the left side wall of the control cavity (26), the lower side of the right end of the control block 2 (33) is provided with an inclined surface 2 (37) matched with the inclined surface 1 (36), the front and rear side walls of the control block 2 (33) are both provided with a limiting groove 1 (38), the front and rear inner walls of the control cavity (26) are both fixedly connected with a limiting rod (39), and the limiting rod (39) is slidably connected in the limiting groove 1 (38).

6. The tunnel cantilever boring machine excavation and support integrated structure according to claim 5, characterized in that: The front and rear side walls of the control panel (27) are both provided with inclined plane three (40), the front and rear side walls of the support frame (24) are both provided with a group of positioning columns (41) connected in a sliding manner along the front and rear directions, the positioning columns (41) are provided with inclined plane four (42) at one end close to the control panel (27), the inclined plane four (42) cooperates with inclined plane three (40), the front and rear side walls of the support frame (3) are both provided with a mounting hole (43), the second support assembly (8) includes a support frame two (44), the support frame two (44) is fixedly connected to a mounting rod (45) on one side close to the support frame (3), the mounting rod (45) The mounting hole (43) is connected to the mounting rod (45) in a sliding manner along the front-back direction. A spring (46) is fixedly connected between the mounting rod (45) and the inner wall of the mounting hole (43). The control rod (22) is fixedly connected to the side wall of the support frame (44) close to the support frame (3). A limiting groove (47) is provided on the side of the support frame (44) close to the support frame (24). A control groove (48) communicating with the limiting groove (47) is also provided in the support frame (44). A control plate (49) is slidably connected in the control groove (48). The upper surface of the control plate (49) is evenly provided with a plurality of conical grooves (5 0), a spring six (62) is fixedly connected between the control plate two (49) and the inner wall of the control groove two (48), a plurality of accommodating chambers (51) are provided above the control groove two (48), the accommodating chambers (51) are communicated with the control groove two (48) through the connecting groove (52), a control block three (53) is slidably connected in the connecting groove (52), a slope five (54) is provided on the left side of the end of the control block three (53) away from the control plate two (49), a slope six (55) is provided on the end of the control block three (53) close to the control plate two (49), and a limiting groove three (56) is provided on the side wall of the connecting groove (52), The side wall of the control block three (53) is fixedly connected with a limiting plate (57), the limiting plate (57) is slidably connected in the limiting groove three (56), a spring four (58) is fixedly connected between the limiting plate (57) and the inner wall of the limiting groove three (56), a clamping block two (59) is slidably connected in the accommodating cavity (51) along the left and right directions, the clamping block two (59) slides along the left and right directions and penetrates the side wall of the accommodating cavity (51), a spring five (60) is fixedly connected between the clamping block two (59) and the inner wall of the accommodating cavity (51), and a slope seven (61) is provided at the lower end of the clamping block two (59) on the side close to the control block three (53).

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