One-time excavation integrated moving unit with inverted arch step method

Abstract

The utility model belongs to the technical field of tunnel construction equipment, and particularly relates to an integrated moving unit for one-time excavation through an inverted arch bench method. The tunnel boring machine comprises a main rack structure, a first side tunneling arm assembly, a second side slagging-off arm assembly and a first-stage slagging-off mechanism are installed on the front side of the main rack structure, arch anchor arm assemblies are installed on the left side and the right side of the main rack structure, and a middle arch spraying arm assembly is installed on the top of the main rack structure. And a rear arch anchor arm assembly, a rear tunneling arm assembly and a secondary deslagging mechanism are mounted on the rear side of the main rack structure. The utility model provides an integrated mobile unit for one-time excavation with an inverted arch bench method, which solves the problems that mechanical equipment of all functional blocks in a front excavation primary support process of a front tunnel face is difficult to join and parallel construction cannot be performed, and completes a primary support ring forming process of new Austrian method construction through mechanical and integrated bench integrated equipment. And the safety step pitch is effectively controlled, the excavation efficiency and safety are improved, the labor intensity of workers is relieved, and the construction safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of tunnel construction equipment technology, especially relates to a one-piece mobile unit with invert step method one-time 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, wherein only the tunnel construction equipment for the preceding procedure operation of the closed loop has no mature integration in the industry. In the construction of the medium-span tunnel, part of the surrounding rock is relatively broken, and the tunnel construction of the general fault can consider using the step method. There is no tunnel primary support closed loop preceding procedure excavation full integration one-piece unit suitable for the step-by-step excavation core soil construction condition in the prior art. UTILITY MODEL CONTENT

[0003] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide a one-piece mobile unit with invert step method one-time excavation, to solve the difficulty in connection of the mechanical equipment of each function block of the primary support procedure of the front face of the front face of the front face, and the parallel construction condition cannot be realized, and through the mechanized and integrated gantry integrated equipment, the primary support loop procedure of the new Austrian tunneling method construction is completed, the safety step distance is effectively controlled, the excavation efficiency and safety are improved, the labor intensity of workers is improved, and the construction safety is improved.

[0004] The technical scheme adopted by the utility model is:

[0005] A one-piece mobile unit with invert step method one-time excavation, comprising a main gantry structure, a first side tunneling arm assembly, a second side slagging arm assembly and a first-stage slagging mechanism are installed on the front side of the main gantry structure, an arch anchor arm assembly is installed on the left and right sides of the main gantry structure, a middle arch spraying arm assembly is installed on the top of the main gantry structure, and a rear arch anchor arm assembly, a rear tunneling arm assembly and a second-stage slagging mechanism are installed on the rear side of the main gantry structure.

[0006] The utility model is the construction equipment matched with the step method under the condition that the medium-span tunnel surrounding rock is good, through the synchronous excavation, parallel slagging and primary support operation of the front and rear steps, the procedure of the loop in the face is completed, and the utilization rate of personnel and equipment is improved. Among them, the parallel slagging operation and the telescopic connection of the front and rear slagging mechanisms and the pump group can avoid the mutual influence problem of the up and down step construction, enhance the mutual connection of the construction procedures, increase the rationality distribution between the procedures while parallel operation, and can connect the procedures to complete the step method excavation mode and the procedure connection of the new Austrian tunneling method support.

[0007] As a preferred scheme of the utility model, the main rack structure includes frame mechanism, the front side of frame mechanism is provided with front section double sliding mechanism, first side tunneling arm assembly is installed on the upper sliding mechanism of front section double sliding mechanism, second side slagging arm assembly is installed on the lower sliding mechanism of front section double sliding mechanism, the rear side of frame mechanism is provided with rear end single sliding mechanism, rear tunneling arm assembly is installed on rear end single sliding mechanism, two arch anchor arm assemblies are installed on the left and right sides of frame mechanism respectively, rear arch anchor arm assembly is installed on the rear side of frame mechanism, intermediate arch spraying arm assembly is installed on the top of frame mechanism.

[0008] The bottom of frame mechanism is further provided with traveling track assembly and telescopic support leg mechanism.

[0009] The various positions of main rack structure are connected respectively, first side tunneling arm assembly, second side slagging arm assembly, primary slagging mechanism, arch anchor arm assembly, intermediate arch spraying arm assembly, rear arch anchor arm assembly, rear tunneling arm assembly and secondary slagging mechanism, which ensure that each assembly can work cooperatively.

[0010] As a preferred scheme of the utility model, the first side tunneling arm assembly includes arm support rotary table, the arm support rotary table is installed on the upper sliding mechanism of front section double sliding mechanism, the arm support rotary table is provided with folding arm support, the other end of folding arm support is provided with tunneling tool.

[0011] As a preferred scheme of the utility model, the second side slagging arm assembly includes arm support rotary table, the arm support rotary table is installed on the lower sliding mechanism of front section double sliding mechanism, the output end of arm support rotary table is connected with folding arm support, the other end of folding arm support is connected with tunneling and scraping integrated tool.

[0012] As a preferred scheme of the utility model, the arch anchor arm assembly includes sliding mechanism, the sliding mechanism is installed on main rack structure, the output end of sliding mechanism is connected with arm support rotary table, the output end of arm support rotary table is connected with telescopic arm support, the output end of telescopic arm support is respectively provided with operating basket, anchor rod drilling machine and arch support gripper.

[0013] As a preferred scheme of the utility model, the intermediate arch spraying arm assembly comprises a sliding mechanism, the sliding mechanism is installed on the top of the main rack structure, the output end of the sliding mechanism is connected with an arm support rotary table, the output end of the arm support rotary table is connected with a telescopic arm support, and the output end of the telescopic arm support is respectively installed with a turnover folding arm, a gunning operation head and an arch gripper.

[0014] As a preferred scheme of the utility model, the rear tunneling arm assembly comprises an arm support rotary table, the arm support rotary table is installed on the rear end single sliding mechanism, a folding arm support is installed on the arm support rotary table, and a tunneling and scraping integrated tool is installed on the other end of the folding arm support.

[0015] As a preferred scheme of the utility model, the primary slag discharging mechanism comprises a box type scraper, the box type scraper is installed on the front side of the main rack structure, a chain scraper group, a power mechanism, a tensioning mechanism and a shovel plate mechanism are installed on the box type scraper, the output end of the power mechanism is connected with the rotating shaft of the chain scraper group, the tensioning mechanism is used for tensioning the chain scraper group, and the shovel plate mechanism is installed on the chain scraper group.

[0016] As a preferred scheme of the utility model, the secondary slag discharging mechanism comprises a box type chute, the box type chute is installed on the rear side of the main rack structure, a telescopic mechanism is arranged at the bottom of the box type chute, a chain scraper group, a power mechanism, a tensioning mechanism and a shovel plate mechanism are installed on the box type chute, the output end of the power mechanism is connected with the rotating shaft of the chain scraper group, the tensioning mechanism is used for tensioning the chain scraper group, and the shovel plate mechanism is installed on the chain scraper group.

[0017] As a preferred scheme of the utility model, the bottom of the main rack structure is further installed with a walking track assembly and a telescopic supporting leg mechanism, and the main rack structure is further installed with an electrical system, a hydraulic system, a compressed air system, a water circulation system, a lubricating system and a dust removal and ventilation system.

[0018] The utility model has the advantages of the following:

[0019] The utility model discloses a bench method's cooperation construction equipment under the condition of medium span tunnel surrounding rock condition is good, through the synchronous excavation of front and rear steps, parallel out of slag and the equipment module of primary support operation, complete in the timely ring process of working face, improve the utilization of personnel and equipment. Among them, parallel out of slag operation and the telescopic link of front and rear out of slag mechanism and pump group can avoid the mutual influence problem of up and down step construction, enhance the mutual connection of construction process, increase the rationality distribution between process of parallel operation simultaneously, and can link process to complete bench method excavation mode and new Austrian tunneling method support process link. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 It is the plan view of the utility model;

[0022] Figure 3 It is the left view of the utility model;

[0023] Figure 4 It is the construction flow chart of the utility model;

[0024] Figure 5 It is the construction simulation diagram of the utility model.

[0025] In the drawing: 1-main gantry structure;2-first side tunneling arm assembly;3-second side out of slag arm assembly;4-first stage out of slag mechanism;5-arch anchor arm assembly;6-middle arch spray arm assembly;7-rear arch anchor arm assembly;8-rear tunneling arm assembly;9-second stage out of slag mechanism;10-traveling caterpillar assembly;11-telescopic supporting leg mechanism;12-slurry storage tank assembly. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely below with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. The components of the utility model embodiment described and shown in the drawing here can be arranged and designed in various different configurations.

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

[0028] As Figures 1-3 shown, the integral moving unit of the bench step method one-time excavation of the present embodiment includes a main rack structure 1, a first side excavation arm assembly 2, a second side slagging arm assembly 3 and a first-stage slagging mechanism 4 are installed on the front side of the main rack structure 1, an arch anchor arm assembly 5 is installed on the left and right sides of the main rack structure 1, a middle arch spraying arm assembly 6 is installed on the top of the main rack structure 1, and a rear arch anchor arm assembly 7, a rear excavation arm assembly 8 and a second-stage slagging mechanism 9 are installed on the rear side of the main rack structure 1. The top of the main rack structure 1 is also provided with an arch support transfer mechanism.

[0029] Among them, the first side excavation arm assembly 2 and the second side slagging arm assembly 3 are arranged left and right on the front side of the main rack structure 1, the first side excavation arm assembly 2 is on the left, and the second side slagging arm assembly 3 is on the right.

[0030] The utility model is the bench step method construction equipment under the condition of medium span tunnel surrounding rock good condition, through the synchronous excavation of front and rear steps, parallel slagging and the equipment module of primary support operation, complete in the working face timely ring process, improve the utilization rate of personnel and equipment. Among them, the parallel slagging operation and the telescopic connection of the front and rear slagging mechanisms and the pump group can avoid the mutual influence problem of up and down step construction, enhance the mutual connection of construction process, increase the rationality distribution between processes while parallel operation, and can connect the processes to complete the step excavation method and the process connection of the new Austrian tunneling method support.

[0031] Specifically, the main rack structure 1 includes a frame mechanism, a front section double-sliding mechanism is installed on the front side of the frame mechanism, the first side excavation arm assembly 2 is installed on the upper sliding mechanism of the front section double-sliding mechanism, and the second side slagging arm assembly 3 is installed on the lower sliding mechanism of the front section double-sliding mechanism; a rear end single-sliding mechanism is installed on the rear side of the frame mechanism, and the rear excavation arm assembly 8 is installed on the rear end single-sliding mechanism; two arch anchor arm assemblies 5 are respectively installed on the left and right sides of the frame mechanism, the rear arch anchor arm assembly 7 is installed on the rear side of the frame mechanism, and the middle arch spraying arm assembly 6 is installed on the top of the frame mechanism.

[0032] The bottom of the frame mechanism is also provided with a walking track assembly 10 and a telescopic supporting leg mechanism 11. An electrical system, a hydraulic system, a compressed air system, a water circulation system, a lubrication system and a dust removal and ventilation system are also installed in the frame mechanism. The electrical system is composed of control circuit, power circuit, lighting circuit and emergency circuit. The hydraulic system is distributed at all components that need to perform actions. The lubrication system is composed of lubricating plunger pump group, pipeline system and heating system. The ventilation system is composed of fan and air pipe. The water circulation system is composed of booster pump and water circulation pipeline.

[0033] The main frame structure 1 is respectively connected with the first side tunneling arm assembly 2, the second side slagging arm assembly 3, the first-stage slagging mechanism 4, the arch anchoring arm assembly 5, the middle arch spraying arm assembly 6, the rear arch anchoring arm assembly 7, the rear tunneling arm assembly 8 and the second-stage slagging mechanism 9, so that the assemblies can work cooperatively.

[0034] The first side tunneling arm assembly 2 comprises an arm support rotary table, which is installed on the upper sliding mechanism of the front double sliding mechanism, and a folding arm support is installed on the arm support rotary table, and a tunneling tool is installed at the other end of the folding arm support. The first side tunneling arm assembly 2 further comprises oil cylinders, valve groups, sensors and other execution control elements for controlling the tunneling tool, and the tunneling tool is a breaking hammer.

[0035] The second side slagging arm assembly 3 comprises an arm support rotary table, which is installed on the lower sliding mechanism of the front double sliding mechanism, and a folding arm support is connected to the output end of the arm support rotary table, and a tunneling and scraping integrated tool is connected to the other end of the folding arm support. The second side slagging arm assembly 3 further comprises oil cylinders, valve groups, sensors and other execution control elements for controlling the tunneling and scraping integrated tool, and the tunneling and scraping integrated tool is a breaking hammer and a slagging bucket.

[0036] The arch anchoring arm assembly 5 comprises a sliding mechanism, which is installed on the main frame structure 1, and an arm support rotary table is connected to the output end of the sliding mechanism, and a telescopic arm support is connected to the output end of the arm support rotary table, and an operating basket, an anchor rod drill and an arch support gripper are respectively installed on the output end of the telescopic arm support. The arch anchoring arm assembly 5 further comprises oil cylinders, valve groups, sensors and other execution control elements for controlling the actions of the structures. The arch anchoring arm assembly 5 is two groups and is symmetrically arranged on the left and right sides of the main frame structure 1.

[0037] The middle arch spraying arm assembly 6 comprises a sliding mechanism, which is installed on the top of the main frame structure 1, and an arm support rotary table is connected to the output end of the sliding mechanism, and a telescopic arm support is connected to the output end of the arm support rotary table, and a turnover folding arm, a spraying operation head and an arch support gripper are respectively installed on the output end of the telescopic arm support. The middle arch spraying arm assembly 6 further comprises oil cylinders, valve groups, sensors and other execution control elements for controlling the actions of the structures. A slurry storage tank assembly 12 is further arranged in the main frame structure 1, and the slurry storage tank assembly 12 is connected with the spraying operation head through a pipeline.

[0038] The rear tunneling arm assembly comprises an arm support rotary table, which is installed on the rear single sliding mechanism, and a folding arm support is installed on the arm support rotary table, and a tunneling and scraping integrated tool is installed at the other end of the folding arm support. The rear tunneling arm assembly further comprises oil cylinders, valve groups, sensors and other execution control elements for controlling the actions of the tunneling and scraping integrated tool, and the tunneling and scraping integrated tool is a breaking hammer and a slagging bucket.

[0039] The primary slagging mechanism 4 comprises a box-type scraper installed on the front side of the main gantry structure 1, a chain scraper group, a power mechanism, a tensioning mechanism and a scraper mechanism installed on the box-type scraper, the output end of the power mechanism being connected with the rotating shaft of the chain scraper group, the tensioning mechanism being used for tensioning the chain scraper group, and the scraper mechanism being installed on the chain scraper group. The number of the primary slagging mechanism 4 is two, and the two are symmetrically arranged.

[0040] The secondary slagging mechanism 9 comprises a box-type chute installed on the rear side of the main gantry structure 1, a chain scraper group, a power mechanism, a tensioning mechanism and a scraper mechanism installed on the box-type chute, the output end of the power mechanism being connected with the rotating shaft of the chain scraper group, the tensioning mechanism being used for tensioning the chain scraper group, and the scraper mechanism being installed on the chain scraper group. The number of the secondary slagging mechanism 9 is two, and the two are symmetrically arranged.

[0041] As shown in Figure 4 and Figure 5 The use method of the integrated mobile unit with the one-step excavation by the inverted arch step method, comprises the following steps:

[0042] S1: the integrated mobile unit is moved to the working area of the working face, the left-side tunneling arm and the second side slagging arm assembly 3 are cooperated to excavate the upper step, and the rear-side tunneling and slagging arm assembly is used for excavating the inverted arch lower course.

[0043] S2: the excavated slag is turned to the scraper plate of the primary slagging mechanism 4 by the second side slagging arm assembly 3, and then is transported to the rear-end telescopic slagging mechanism, and is directly dropped on the slag car for transportation to the outside of the hole; the excavated slag at the rear end is turned to the backfill virtual slag surface of the upper excavation inverted arch lower course, and the excess slag is turned to the slag car by the excavator in the hole; the first-step excavation operation is completed.

[0044] S3: the upper and lower step excavation surfaces are subjected to the initial spraying operation, the tank car receives the shotcrete material outside the hole by the telescopic pump group; after the initial spraying is completed, the upper and lower step stand erecting operation, anchor rod operation and advanced anchor rod operation are carried out; the re-spraying operation is carried out to complete the initial support cycle of the new Austrian tunneling method, and the virtual slag backfilling is carried out by the excavator in the hole. The integrated unit is moved to carry out the next excavation, slagging and initial support cycle operation, and the tunneling construction is completed.

[0045] The utility model is not limited to the above optional implementation, anyone can derive other various forms of products under the enlightenment of the utility model, but no matter makes any change in its shape or structure, any technical scheme falling into the utility model claim definition range is in the protection scope of the utility model.

Claims

1. An integrated mobile excavator unit with an inverted arch and bench method for one-time excavation, characterized in that: The utility model provides a tunneling machine, which comprises a main frame structure (1), a first side tunneling arm assembly (2), a second side slagging arm assembly (3) and a first-stage slagging mechanism (4) are mounted on the front side of the main frame structure (1), an arch anchor arm assembly (5) is mounted on the left and right sides of the main frame structure (1), a middle arch spraying arm assembly (6) is mounted on the top of the main frame structure (1), a rear arch anchor arm assembly (7), a rear tunneling arm assembly (8) and a second-stage slagging mechanism (9) are mounted on the rear side of the main frame structure (1).

2. A one-step integrated mobile machine group with inverted arch step method according to claim 1, characterized in that: The main frame structure (1) comprises a frame mechanism, a front double-sliding mechanism is mounted on the front side of the frame mechanism, the first side tunneling arm assembly (2) is mounted on the upper sliding mechanism of the front double-sliding mechanism, and the second side slagging arm assembly (3) is mounted on the lower sliding mechanism of the front double-sliding mechanism; a rear single-sliding mechanism is mounted on the rear side of the frame mechanism, and the rear tunneling arm assembly (8) is mounted on the rear single-sliding mechanism; the two arch anchor arm assemblies (5) are respectively mounted on the left and right sides of the frame mechanism, the rear arch anchor arm assembly (7) is mounted on the rear side of the frame mechanism, and the middle arch spraying arm assembly (6) is mounted on the top of the frame mechanism.

3. A one-step integrated mobile machine unit with inverted arch step method according to claim 2, characterized in that: The first side tunneling arm assembly (2) comprises an arm support turntable, the arm support turntable is mounted on the upper sliding mechanism of the front double-sliding mechanism, a folding arm support is mounted on the arm support turntable, and a tunneling tool is mounted at the other end of the folding arm support.

4. A one-step integrated mobile machine group with inverted arch step method according to claim 2, characterized in that: The second side slagging arm assembly (3) comprises an arm support turntable, the arm support turntable is mounted on the lower sliding mechanism of the front double-sliding mechanism, a folding arm support is connected to the output end of the arm support turntable, and a tunneling and scraping integrated tool is connected to the other end of the folding arm support.

5. A one-step integrated mobile machine unit with inverted arch step method according to claim 1, characterized in that: The arch anchor arm assembly (5) comprises a sliding mechanism, the sliding mechanism is mounted on the main frame structure (1), an arm support turntable is connected to the output end of the sliding mechanism, a telescopic arm support is connected to the output end of the arm support turntable, and an operating basket, an anchor rod drill and an arch support gripper are respectively mounted on the output end of the telescopic arm support.

6. A one-step integrated mobile machine unit with inverted arch step method according to claim 1, characterized in that: The middle arch spraying arm assembly (6) comprises a sliding mechanism, the sliding mechanism is mounted on the top of the main frame structure (1), an arm support turntable is connected to the output end of the sliding mechanism, a telescopic arm support is connected to the output end of the arm support turntable, and a turnover folding arm, a spraying operation head and an arch support gripper are respectively mounted on the output end of the telescopic arm support.

7. A one-step integrated mobile machine unit with inverted T- step method according to claim 2, characterized in that: The rear tunneling arm assembly comprises an arm support turntable, the arm support turntable is mounted on the rear single-sliding mechanism, a folding arm support is mounted on the arm support turntable, and a tunneling and scraping integrated tool is mounted at the other end of the folding arm support.

8. The integrated mobile machine group with inverted arch step method one-time excavation according to claim 1, characterized in that: The first-stage slagging mechanism (4) comprises a box-type scraper, the box-type scraper is mounted on the front side of the main frame structure (1), a chain scraper group, a power mechanism, a tensioning mechanism and a shovel plate mechanism are mounted on the box-type scraper, the output end of the power mechanism is connected to the rotating shaft of the chain scraper group, the tensioning mechanism is used for tensioning the chain scraper group, and the shovel plate mechanism is mounted on the chain scraper group.

9. The integrated mobile machine group with inverted arch step method one-time excavation according to claim 1, characterized in that: The second-stage slagging mechanism (9) comprises a box-type chute, the box-type chute is mounted on the rear side of the main frame structure (1), a telescopic mechanism is arranged at the bottom of the box-type chute, a chain scraper group, a power mechanism, a tensioning mechanism and a shovel plate mechanism are mounted on the box-type chute, the output end of the power mechanism is connected to the rotating shaft of the chain scraper group, the tensioning mechanism is used for tensioning the chain scraper group, and the shovel plate mechanism is mounted on the chain scraper group.

10. The integrated mobile machine group of one-time excavation with inverted arch step method according to any one of claims 1-9, characterized in that: The bottom of the main frame structure (1) is also provided with a walking track assembly (10) and a telescopic supporting leg mechanism (11); the main frame structure (1) is also provided with an electrical system, a hydraulic system, a compressed air system, a water circulation system, a lubricating system and a dust removal and ventilation system.

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