New Austrian and Austrian integrated mobile unit suitable for ultra-short step excavation

Abstract

The utility model belongs to the technical field of tunnel construction equipment, and particularly relates to a novel Austrian-method integrated mobile unit suitable for ultra-short step excavation. According to the technical scheme, the novel Austrian integrated moving unit suitable for ultra-short step excavation comprises a main rack structure, a main excavation arm assembly is installed on the front side of the main rack structure, auxiliary excavation arm assemblies are installed on the left side and the right side of the main rack structure correspondingly, and a middle arch spraying arm assembly is installed at the top of the main rack structure; arch anchor arm assemblies are arranged on the two sides of the middle arch spraying arm assembly and are also mounted at the top of the main rack structure. The utility model provides a new Austrian method integrated mobile unit suitable for ultra-short step excavation, which solves the problems that mechanical equipment of all functional blocks in front excavation and primary support processes of a front tunnel face is difficult to connect and parallel construction cannot be performed, and the primary support ring forming process of new Austrian method construction is completed through mechanical and integrated rack integrated equipment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tunnel construction equipment technical field, especially relate to a new Austrian tunneling method integrated mobile unit suitable for super short step excavation. BACKGROUND

[0002] In the new Austrian tunneling method construction, the preceding procedure of the operation cycle procedure of tunnel construction is excavation, slagging and primary support operation, in the construction tunnel of medium span, the tunnel construction of part three surrounding rock integrity, fault good can consider using super short step method (less than one time hole diameter upper bench length), in the specific construction link, the cycle operation of excavation and primary support and the operation cycle time rhythm of secondary lining are different.

[0003] At present, the industry has no mature tunnel construction integrated equipment only for the preceding procedure operation of closed loop, in the prior art, the function block mechanical equipment of preceding procedure excavation and primary support of preceding face is difficult to connect, and cannot parallel construction. UTILITY MODEL CONTENT

[0004] In order to solve the above problems existing in prior art, the utility model aims at providing a new Austrian tunneling method integrated mobile unit suitable for super short step excavation, solve the problem that the function block mechanical equipment of preceding procedure excavation and primary support of preceding face is difficult to connect and cannot parallel construction, complete the primary support loop procedure of new Austrian tunneling method construction through mechanization, integrated gantry integrated equipment.

[0005] The utility model adopts the technical scheme of:

[0006] A new Austrian tunneling method integrated mobile unit suitable for super short step excavation, including main gantry structure, the front side of main gantry structure is installed with main excavation arm assembly, the left and right sides of main gantry structure are installed with auxiliary excavation arm assembly, the top of main gantry structure is installed with middle arch spray arm assembly, the both sides of middle arch spray arm assembly are provided with arch anchor arm assembly, and the arch anchor arm assembly is also installed on the top of main gantry structure.

[0007] The utility model discloses a reasonable arrangement of main excavation arm assembly, auxiliary excavation arm assembly, middle arch spray arm assembly and arch anchor arm assembly etc. structure on main gantry structure can be used in the cooperation construction of super short bench method under the condition of medium span tunnel surrounding rock good condition, through the equipment module of excavation, parallel out of slag and primary support operation of integrated bench, complete in time the process of forming ring at the working face, improve the utilization rate of personnel and equipment. The double functional module of arch spray arm frame and arch anchor arm frame and left and right auxiliary excavation arm of equipment rotation front and back can effectively carry out construction in the narrow space in the hole, and can link process to complete the process linkage of super short bench excavation mode and new Austrian tunneling method support. The utility model discloses the integrated equipment of mechanization, integration of bench, complete the primary support ring process of new Austrian tunneling method construction, effectively control safety step distance increase excavation efficiency and safety, improve the labor intensity of worker, improve construction safety.

[0008] As the preferred scheme of the utility model, the main gantry structure includes a frame body, a longitudinal sliding mechanism is installed on the front side of the frame body, and the main excavation arm assembly is installed on the output end of the longitudinal sliding mechanism; the left and right sides of the frame body are both provided with auxiliary excavation arm transverse sliding tracks, and two auxiliary excavation arm assemblies are respectively and slidingly installed on the two auxiliary excavation arm transverse sliding tracks; the top of the frame body is provided with a middle transverse sliding track and arch anchor arm transverse sliding tracks separately arranged on the left and right sides of the middle sliding track, the middle arch spray arm assembly is slidingly installed on the middle transverse sliding track, and the arch anchor arm assembly is slidingly installed on the arch anchor arm transverse sliding track.

[0009] The longitudinal sliding mechanism, the auxiliary excavation arm transverse sliding track, the middle transverse sliding track and the arch anchor arm transverse sliding track are arranged on the frame body, so that the main tunneling arm assembly, the rear tunneling arm assembly, the auxiliary slagging arm assembly, the slagging scraper, the arch anchor arm assembly and the middle arch spray arm assembly can be reliably installed, the positions can be adjusted as required, and the assemblies can work cooperatively.

[0010] As the preferred scheme of the utility model, the main excavation arm assembly includes a tunneling arm frame, the tunneling arm frame is installed on the output end of the longitudinal sliding mechanism, and an excavation tool is installed at the other end of the tunneling arm frame. The main excavation arm assembly also includes an oil cylinder, a valve group, a sensor and other execution control elements for controlling the excavation tool. The excavation tool can be a milling head, a breaking hammer, a high-frequency breaking hammer or the like.

[0011] As the preferred scheme of the utility model, the auxiliary excavating arm assembly comprises a sliding trolley, the sliding trolley is slidably connected to the auxiliary excavating arm transverse sliding track, a rotary device is installed on the sliding trolley, an excavating arm frame is connected to the output end of the rotary device, and an excavating device is connected to the other end of the excavating arm frame.

[0012] As the preferred scheme of the utility model, the intermediate arch spraying arm assembly comprises a sliding trolley, the sliding trolley is slidably connected to the intermediate transverse sliding track, a spraying folding telescopic arm and an arch mounting telescopic arm are installed on the sliding trolley. A spraying operation head is installed on the other end of the spraying folding telescopic arm, and an arch mounting gripper is installed on the other end of the arch mounting telescopic arm. The intermediate arch spraying arm assembly further comprises oil cylinders, valve groups, sensors and other execution control elements for controlling the actions of various structures.

[0013] As the preferred scheme of the utility model, the arch anchor arm comprises a sliding trolley, the sliding trolley is slidably connected to the arch anchor arm transverse sliding track, a telescopic arm frame arm is installed on the sliding trolley, a rock drilling mechanism for anchor rod and an arch mounting gripper are installed on the telescopic arm frame arm. The arch anchor arm assembly further comprises oil cylinders, valve groups, sensors and other execution control elements for controlling the actions of various structures. The arch anchor arm assembly is arranged in a left-right symmetrical manner on the top of the main rack structure.

[0014] As the preferred scheme of the utility model, the upper side of the main rack structure is further provided with an arch frame transfer assembly.

[0015] As the preferred scheme of the utility model, the arch frame transfer assembly comprises an arch frame lifting mechanism, the arch frame lifting mechanism is installed at the rear end of the main rack structure, and an arch frame transfer mechanism is connected to the output end of the arch frame lifting mechanism.

[0016] As the preferred scheme of the utility model, the bottom of the main rack structure is provided with a caterpillar track walking system, and the main rack structure is provided with a control system, a hydraulic system and an electrical system. The caterpillar track walking system comprises a caterpillar track assembly and a walking speed reducer assembly. The control system, the hydraulic system and the electrical system are distributed to adjust the feedback and output signals of all action control and sensing control.

[0017] The utility model has the advantages of:

[0018] This invention, through the rational arrangement of main excavation arm assemblies, auxiliary excavation arm assemblies, intermediate arch-spraying arm assemblies, and arch-anchor arm assemblies on the main frame structure, can be used in conjunction with the ultra-short bench method for construction in medium-span tunnels with favorable surrounding rock conditions. By integrating equipment modules for bench excavation, parallel muck removal, and initial support operations, it completes the ring-forming process at the tunnel face in a timely manner, improving the utilization rate of personnel and equipment. The dual-function modules of the arch-spraying arm and arch-anchor arm, along with the left and right auxiliary excavation arms that rotate forward and backward, effectively enable construction in the narrow space within the tunnel and seamlessly connect processes to complete the ultra-short bench excavation method and the New Austrian Tunneling Method (NATM) support process. This invention, through mechanized and integrated integrated equipment, completes the initial support and ring-forming process of NATM construction, effectively controlling the safe step distance, increasing excavation efficiency and safety, reducing worker labor intensity, and improving construction safety. Attached Figure Description

[0019] Figure 1 This is the front view of this utility model;

[0020] Figure 2 This is a left view of the present invention;

[0021] Figure 3 This is a perspective view of the present invention;

[0022] Figure 4 This is a construction flowchart of this utility model.

[0023] Figure 5 This is a schematic diagram illustrating the process connection principle of this utility model;

[0024] Figure 6 This is a construction simulation diagram of this utility model.

[0025] In the diagram: 1-Main frame structure; 2-Main excavation arm assembly; 3-Auxiliary excavation arm assembly; 4-Intermediate arch spraying arm assembly; 5-Arch anchor arm assembly; 6-Arch frame transfer assembly; 7-Crawler travel system; 8-Control system; 9-Hydraulic system; 10-Electrical system. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0028] As Figures 1-3 The utility model discloses a new Austrian tunneling method integral mobile unit suitable for super short step excavation, which comprises a main rack structure 1, a main excavation arm assembly 2 installed on the front side of the main rack structure 1, auxiliary excavation arm assemblies 3 installed on the left and right sides of the main rack structure 1, a middle arch spraying arm assembly 4 installed on the top of the main rack structure 1, arch anchor arm assemblies 5 arranged on the left and right sides of the middle arch spraying arm assembly 4, and the arch anchor arm assemblies 5 also being installed on the top of the main rack structure 1.

[0029] The utility model discloses a new Austrian tunneling method integral mobile unit suitable for super short step excavation, which comprises a main rack structure 1, a main excavation arm assembly 2 installed on the front side of the main rack structure 1, auxiliary excavation arm assemblies 3 installed on the left and right sides of the main rack structure 1, a middle arch spraying arm assembly 4 installed on the top of the main rack structure 1, arch anchor arm assemblies 5 arranged on the left and right sides of the middle arch spraying arm assembly 4, and the arch anchor arm assemblies 5 also being installed on the top of the main rack structure 1.

[0030] Specifically, the main rack structure 1 comprises a frame main body, a longitudinal sliding mechanism is installed on the front side of the frame main body, and the main excavation arm assembly 2 is installed on the output end of the longitudinal sliding mechanism; auxiliary excavation arm lateral sliding tracks are arranged on the left and right sides of the frame main body, and the two auxiliary excavation arm assemblies 3 are slidingly installed on the two auxiliary excavation arm lateral sliding tracks respectively; a middle lateral sliding track and arch anchor arm lateral sliding tracks separately arranged on the left and right sides of the middle lateral sliding track are installed on the top of the frame main body, the middle arch spraying arm assembly 4 is slidingly installed on the middle lateral sliding track, and the arch anchor arm assemblies 5 are slidingly installed on the arch anchor arm lateral sliding tracks.

[0031] The longitudinal sliding mechanism, the auxiliary digging arm transverse sliding track, the middle transverse sliding track, the arch anchor arm transverse sliding track are arranged on the frame body, so that the main digging arm assembly, the rear digging arm assembly, the auxiliary digging arm assembly, the arch anchor arm assembly, the middle arch spraying arm assembly can be reliably installed and adjusted according to the requirement, and the assemblies can work cooperatively.

[0032] Specifically, the main digging arm assembly 2 comprises a digging arm frame, the digging arm frame is installed on the output end of the longitudinal sliding mechanism, and the other end of the digging arm frame is provided with a digging tool. The main digging arm assembly 2 further comprises an oil cylinder, a valve group, a sensor and other execution control elements for controlling the digging tool. The digging tool can be a milling head, a breaking hammer, a high-frequency breaking hammer and the like.

[0033] Specifically, the auxiliary digging arm assembly 3 comprises a sliding trolley, the sliding trolley is slidably connected to the auxiliary digging arm transverse sliding track, a rotary device is installed on the sliding trolley, a digging arm frame is connected to the output end of the rotary device, and a digging device is connected to the other end of the digging arm frame. The auxiliary digging arm assembly 3 further comprises an oil cylinder, a valve group, a sensor and other execution control elements for controlling the digging device. The auxiliary digging arm assembly 3 is provided in two groups and arranged on the left and right sides of the main frame structure 1 and can move forward and backward. The digging device can be a milling head, a breaking hammer, a high-frequency breaking hammer and the like.

[0034] Specifically, the middle arch spraying arm assembly 4 comprises a sliding trolley, the sliding trolley is slidably connected to the middle transverse sliding track, a spraying folding telescopic arm and an arch installation telescopic arm are installed on the sliding trolley. A spraying operation head is installed on the other end of the spraying folding telescopic arm, and an arch gripper is installed on the other end of the arch installation telescopic arm. The middle arch spraying arm assembly 4 further comprises an oil cylinder, a valve group, a sensor and other execution control elements for controlling the operation of each structure.

[0035] Specifically, the arch anchor arm comprises a sliding trolley, the sliding trolley is slidably connected to the arch anchor arm transverse sliding track, a telescopic arm frame arm is installed on the sliding trolley, and an anchor rod rock drilling mechanism and an arch installation gripper are installed on the telescopic arm frame arm. The arch anchor arm assembly 5 further comprises an oil cylinder, a valve group, a sensor and other execution control elements for controlling the operation of each structure. The arch anchor arm assembly 5 is provided in two groups and arranged symmetrically on the top of the main frame structure 1.

[0036] Furthermore, an arch frame transfer assembly 6 is further installed on the upper side of the main frame structure 1. The arch frame transfer assembly 6 comprises an arch frame lifting mechanism, the arch frame lifting mechanism is installed on the rear end of the main frame structure 1, and an arch frame transfer mechanism is connected to the output end of the arch frame lifting mechanism.

[0037] The bottom of the main gantry structure 1 is provided with a crawler walking system 7, and the main gantry structure 1 is internally provided with a control system 8, a hydraulic system 9 and an electrical system 10. The control system 8, the hydraulic system 9 and the electrical system 10 are installed below the auxiliary digging arm assembly 3 of the main gantry structure 1, and the crawler walking system 7 is installed on the crawler mounting mechanism of the main gantry structure 1. The crawler walking system 7 comprises a crawler assembly and a walking reduction gear assembly. The control system 8, the hydraulic system 9 and the electrical system 10 are distributed to all action controls and feedback and output signal adjustments of sensing controls.

[0038] As shown in Figure 4 and Figure 6 The use method of the new Austrian tunneling method integrated mobile unit suitable for super-short step excavation comprises the following steps:

[0039] S1: parallel operation of super-short step method working condition excavation: the main digging arm assembly 2 excavates part of the upper step and the lower step, the reclaimer cooperates with the reclamation, and the auxiliary digging arm assembly 3 excavates the sidewall of the lower step;

[0040] S2: parallel operation of support operation: the arch anchor arm assembly 5 performs upper step and lower step support, inverted arch stand and anchor rod installation;

[0041] S3: parallel operation of initial spraying operation: the intermediate arch spraying arm performs upper step and lower step spraying operation.

[0042] In order to cooperate with the use of the equipment function module, the core expansion application of the super-short step method is also adjusted to the excavation sequence of the equipment working face, and the separation mode is as shown in Figure 5 The excavation sequence is to first excavate the surrounding rock of L3, R3, L1 and R1 positions, and simultaneously excavate the surrounding rock of L4, R4, L2, R2, L6 and R6, so as to realize simultaneous excavation of the next inverted arch, and not to affect the core soil and arch structure on both sides of the super-short step.

[0043] The utility model is not limited to the above optional implementation, and anyone can derive other various forms of products under the inspiration of the utility model, but no matter any change in shape or structure, any technical scheme falling within the scope defined by the claims of the utility model falls within the protection scope of the utility model.

Claims

1. A new Austrian tunneling method integrated mobile unit suitable for ultra-short bench excavation, characterized in that: The utility model provides a tunneling machine, which comprises a main frame structure (1), a main excavation arm assembly (2) is mounted on the front side of the main frame structure (1), auxiliary excavation arm assemblies (3) are mounted on the left and right sides of the main frame structure (1), a middle arch spraying arm assembly (4) is mounted on the top of the main frame structure (1), arch anchor arm assemblies (5) are arranged on the two sides of the middle arch spraying arm assembly (4), and the arch anchor arm assemblies (5) are also mounted on the top of the main frame structure (1).

2. A NATM integrated mobile unit adapted to cope with ultra-short bench excavation according to claim 1, characterized in that: The main frame structure (1) comprises a frame body, a longitudinal sliding mechanism is mounted on the front side of the frame body, and the main excavation arm assembly (2) is mounted on the output end of the longitudinal sliding mechanism; auxiliary excavation arm transverse sliding rails are arranged on the left and right sides of the frame body, and the two auxiliary excavation arm assemblies (3) are slidably mounted on the two auxiliary excavation arm transverse sliding rails; a middle transverse sliding rail and arch anchor arm transverse sliding rails arranged on the two sides of the middle transverse sliding rail are mounted on the top of the frame body, the middle arch spraying arm assembly (4) is slidably mounted on the middle transverse sliding rail, and the arch anchor arm assemblies (5) are slidably mounted on the arch anchor arm transverse sliding rails.

3. A NATM integrated mobile unit adapted to cope with ultra-short bench excavation according to claim 2, characterized in that: The main excavation arm assembly (2) comprises a tunneling arm support, the tunneling arm support is mounted on the output end of the longitudinal sliding mechanism, and an excavation tool is mounted on the other end of the tunneling arm support.

4. A NATM integrated mobile unit adapted to cope with ultra-short bench excavation according to claim 2, characterized in that: The auxiliary excavation arm assembly (3) comprises a sliding trolley, the sliding trolley is slidably connected to the auxiliary excavation arm transverse sliding rail, a rotating device is mounted on the sliding trolley, an excavation arm support is connected to the output end of the rotating device, and an excavation device is connected to the other end of the excavation arm support.

5. A NATM integrated mobile gang suitable for excavation of ultra-short bench, according to claim 2, characterized in that: The middle arch spraying arm assembly (4) comprises a sliding trolley, the sliding trolley is slidably connected to the middle transverse sliding rail, a spraying folding telescopic arm and an arch support mounting telescopic arm are mounted on the sliding trolley.

6. A NATM integrated mobile unit adapted to cope with ultra-short bench excavation according to claim 2, characterized in that: The arch anchor arm comprises a sliding trolley, the sliding trolley is slidably connected to the arch anchor arm transverse sliding rail, a telescopic arm support arm is mounted on the sliding trolley, and a rock anchor drilling mechanism and an arch support mounting gripper are mounted on the telescopic arm support arm.

7. A NATM integrated mobile unit adapted to cope with ultra-short bench excavation according to claim 1, characterized in that: An arch support transfer assembly (6) is further mounted on the top of the main frame structure (1).

8. A NATM integrated mobile rig adapted to cope with ultra-short bench excavation according to claim 7, characterized in that: The arch support transfer assembly (6) comprises an arch support lifting mechanism, the arch support lifting mechanism is mounted on the rear end of the main frame structure (1), and an arch support transfer mechanism is connected to the output end of the arch support lifting mechanism.

9. A NATM integrated mobile unit adapted to cope with ultra-short bench excavation according to claim 1, characterized in that: A crawler track system (7) is mounted on the bottom of the main frame structure (1).

10. A NATM integrated mobile gang suitable for excavation of ultra-short bench, according to claim 1, characterized in that: A control system (8), a hydraulic system (9) and an electrical system (10) are mounted in the main frame structure (1).

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