CN112196558A - Tunnel boring machine for underground rock mass engineering - Google Patents
Tunnel boring machine for underground rock mass engineering Download PDFInfo
- Publication number
- CN112196558A CN112196558A CN202011061267.3A CN202011061267A CN112196558A CN 112196558 A CN112196558 A CN 112196558A CN 202011061267 A CN202011061267 A CN 202011061267A CN 112196558 A CN112196558 A CN 112196558A
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- China
- Prior art keywords
- rock mass
- cutter head
- underground rock
- mass engineering
- main beam
- Prior art date
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- 239000011435 rock Substances 0.000 title claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 238000005553 drilling Methods 0.000 claims abstract description 17
- 230000005641 tunneling Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a tunnel boring machine for underground rock mass engineering, which comprises a main beam, a driving mechanism, a supporting mechanism, a connecting mechanism and a cutter head, wherein the main beam is arranged on the main beam; the cutter head is connected with the main beam through the connecting mechanism, the driving mechanism is installed on the supporting mechanism, and the driving mechanism is connected with the main beam; the tunnel boring machine is characterized in that a tool bit array formed by a plurality of tool bits is arranged at the front end of the tool bit array, a drilling mechanism embedded into the tool bit is arranged between every two adjacent tool bits in every row or every column in the tool bit array, and the drilling mechanism inside the tool bit drills a rock mass to be excavated on a tunnel face in advance to generate a prefabricated crack, so that the rock can be quickly broken, the TBM performance is fully exerted, the boring efficiency is improved, the engineering progress and period are shortened, and the tunnel boring machine is particularly suitable for TBM boring of hard rock engineering.
Description
Technical Field
The invention relates to the technical field of hard rock tunneling, in particular to a tunnel boring machine for underground rock mass engineering.
Background
The high-efficiency tunneling of the hard rock engineering has important significance for the excavation of geotechnical engineering, and determines the construction progress, the rationality of construction organization, the economic investment of projects and the like of site engineering. In particular, a Tunnel Boring Machine (TBM) construction technology which is widely used is obtained, and the boring speed in hard rock is particularly important, and the construction technology can reflect the boring condition and the operation and maintenance form of a project. The TBM tunneling is to utilize various multi-type multi-size cutters with different distributions on a cutter head to cut rock masses in front of a tunnel face so as to achieve the aim of tunneling; the tunneling efficiency of the TBM device depends on electromechanical control systems of self thrust, torque, penetration, rotating speed, slag tapping and the like of the TBM device, and also depends on physical and mechanical properties of a rock body to be excavated, and factors such as construction organization, procedure connection, scientific and reasonable operation of operators on the TBM. Under the condition of complete hard rock tunneling (cracks do not develop, the integrity of rock mass is high, and the uniaxial compressive strength of rock is more than 150MPa), the TBM has poor adaptability, the mechanical performance of the TBM cannot be fully exerted, so that the engineering tunneling efficiency is low, and the engineering progress and period are delayed.
Disclosure of Invention
The invention aims to provide a tunnel boring machine for underground rock mass engineering, which aims to solve the problems that the engineering boring efficiency is low and the engineering progress and period are delayed because the TBM adaptability is poor and the mechanical performance of the TBM cannot be fully exerted under the condition of complete hard rock boring (cracks are not developed, the integrity of rock mass is high and the uniaxial compressive strength of rock is more than 150 MPa).
According to an embodiment of the invention, the tunnel boring machine for the underground rock mass engineering comprises a main beam, a driving mechanism, a supporting mechanism, a connecting mechanism and a cutter head;
the cutter head is connected with the main beam through the connecting mechanism, the driving mechanism is installed on the supporting mechanism, and the driving mechanism is connected with the main beam;
the front end of blade disc is equipped with the tool bit array that a plurality of tool bits constitute, every row or adjacent two in every row in the tool bit array be equipped with the drilling mechanism of embedding blade disc between the tool bit.
Specifically, the drilling mechanism comprises an accommodating cavity, and a telescopic device, a driving motor and a drill rod which are arranged in the accommodating cavity;
one end of the drill rod is connected with the driving motor, the drill rod is arranged in the direction parallel to the axial direction of the cutter head, and the telescopic device can drive the drill rod to stretch in the direction parallel to the axial direction of the cutter head.
Specifically, the front end of the accommodating cavity is provided with a plug, and a part of the plug, which corresponds to the drill rod, is provided with a through hole.
Specifically, the shutoff adopts the carbon content to be less than 0.7%, and intensity is higher than 30% of blade disc material intensity, wearability are not less than the material of blade disc material is made.
Specifically, the carbon content of the plugging material is 0.5-0.6%.
Specifically, the telescoping device includes connecting piece, drive shaft and hydraulic pump, driving motor pass through the connecting piece with the drive shaft is connected, the hydraulic pump with the drive shaft is connected.
Specifically, the cutter head is detachably connected with the connecting mechanism.
Specifically, two opposite sides of the supporting mechanism are respectively provided with a supporting shoe and a folding hydraulic cylinder, the tail end of the supporting shoe is hinged to the supporting mechanism, one end of the folding hydraulic cylinder is hinged to the supporting mechanism, and the other end of the folding hydraulic cylinder is hinged to the other end of the supporting shoe.
The embodiment of the invention provides a tunnel boring machine for underground rock mass engineering, which is characterized in that a hole is pre-drilled on a rock mass to be excavated on a tunnel face through a drilling mechanism in a cutter head to generate a prefabricated crack, so that rapid rock breaking can be realized, the TBM performance is fully exerted, the boring efficiency is improved, the engineering progress and period are shortened, and the tunnel boring machine is particularly suitable for TBM boring of hard rock engineering.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a tunnel boring machine for underground rock mass engineering provided by the invention;
FIG. 2 is a front view of the cutter head;
FIG. 3 is a block diagram of a drilling mechanism;
FIG. 4 is a block diagram of a plug;
fig. 5 is a structural diagram of the supporting shoe and the folding hydraulic cylinder.
The excavating device comprises a rock body to be excavated 1, a face 2, a tool bit 3, a drilling mechanism 4, a drill rod 41, a sealing plug 42, a containing cavity 43, a driving motor 44, a telescopic device 45, a connecting piece 451, a driving shaft 452, a hydraulic pump 453, a cutter head 5, a connecting mechanism 6, a main beam 7, a driving mechanism 8, a supporting mechanism 9, a supporting shoe 10 and a folding hydraulic cylinder 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to an embodiment of the invention, as shown in fig. 1 and 2, there is provided a tunnel boring machine for underground rock mass engineering, comprising a main beam 7, a driving mechanism 8, a supporting mechanism 9, a connecting mechanism 6 and a cutter head 5; the cutter head 5 is connected with the main beam 7 through a connecting mechanism 6, the driving mechanism 8 is arranged on a supporting mechanism 9, and the driving mechanism 8 is connected with the main beam 7; the front end of the cutter head 5 is provided with a cutter head array consisting of a plurality of cutter heads 3, and a drilling mechanism 4 embedded in the cutter head 5 is arranged between every two adjacent cutter heads 3 in each row or each column in the cutter head array.
Wherein, the driving mechanism 8 can adopt a propulsion oil cylinder, and the driving mechanism 8 is mainly used for longitudinal movement in the tunneling process. The drilling mechanism 4 embedded into the cutter head 5 is arranged between every two adjacent cutter heads 3 in each row or each column in the cutter head array, so that the number of the cutter heads 3 and the drilling mechanisms 4 can be ensured, the uniform distribution of the cutter heads 3 and the drilling mechanisms 4 can be ensured, and the tunneling effect is further improved.
In the specific tunneling process, a drilling mechanism 4 in a cutter head 5 is used for pre-drilling a rock mass 1 to be excavated on a tunnel face 2 to generate a prefabricated crack, and then the rock mass with the prefabricated crack is broken through a cutter head 3 on the cutter head 5.
The embodiment of the invention provides a tunnel boring machine for underground rock mass engineering, which is characterized in that a hole is pre-drilled on a rock mass 1 to be excavated on a tunnel face 2 through a drilling mechanism 4 in a cutter head 5 to generate a prefabricated crack, so that rapid rock breaking can be realized, the TBM performance is fully exerted, the boring efficiency is improved, the engineering progress and period are shortened, and the tunnel boring machine is particularly suitable for TBM boring of hard rock engineering.
In the above embodiment, as shown in fig. 3, the drilling mechanism 4 includes a housing chamber 43, and a telescopic device 45, a driving motor 44 and a drill rod 41 which are arranged in the housing chamber 43; one end of the drill rod 41 is connected with a driving motor 44, the drill rod 41 is arranged along the direction parallel to the axial direction of the cutter head 5, and the telescopic device 45 can drive the drill rod 41 to extend and retract along the direction parallel to the axial direction of the cutter head 5.
The telescopic device 45 includes a coupling 451, a drive shaft 452, and a hydraulic pump 453, the drive motor 44 is connected to the drive shaft 452 via the coupling 451, and the hydraulic pump 453 is connected to the drive shaft 452. The connecting member 451 may be a conventional member capable of performing a connecting function, and is not limited in this embodiment.
In the specific tunneling process, the driving shaft 452 is driven by the hydraulic pump 453 to extend, so that the driving shaft 452 drives the driving motor 44 and the drill rod 41 to extend forwards through the connecting piece 451 until the drill rod 41 touches the rock body, at the moment, the hydraulic pump 453 stops driving, the driving motor 44 is started to drive the drill rod 41 to rotate, after the rotating speed of the drill rod 41 is stabilized, the hydraulic pump 453 drives again, so that the rotating drill rod 41 continues to extend forwards, at the moment, the drill rod 41 starts to drill the rock body, when the preset depth is reached and the prefabricated crack is generated, the telescopic rod drives reversely, the driving motor 44 and the drill rod 41 move back to the initial position at the same time, the hydraulic pump 453 stops driving, and the driving motor 44 stops working.
In the above embodiment, as shown in fig. 3 and 4, the front end of the accommodating cavity 43 is provided with the plug 42, and the part of the plug 42 corresponding to the drill rod 41 is provided with the through hole. The plug 42 prevents dust and particles generated during the driving process from entering the accommodating cavity 43.
The plug 42 is made of a material with a carbon content lower than 0.7%, a strength higher than 30% of the strength of the material of the cutter head 5, and a wear resistance not lower than that of the material of the cutter head 5, and further, the carbon content of the material of the plug 42 is 0.5% -0.6%, so that the plug 42 has the advantages of high strength and wear resistance.
In the above embodiment, the cutter head 5 is detachably connected to the connecting mechanism 6. The cutter head 5 and the connecting mechanism 6 can be detachably connected through bolts and the like, so that the cutter head 5 can be conveniently maintained and replaced, and the operation of workers is facilitated.
In the above embodiment, as shown in fig. 5, two opposite sides of the supporting mechanism 9 are respectively provided with a supporting shoe 10 and a folding hydraulic cylinder 11, a terminal of the supporting shoe 10 is hinged to the supporting mechanism 9, one end of the folding hydraulic cylinder 11 is hinged to the supporting mechanism 9, and the other end of the folding hydraulic cylinder 11 is hinged to the other end of the supporting shoe 10. When the supporting shoe 10 works, the folding hydraulic cylinder 11 can be in a contraction state, so that the supporting shoe 10, the supporting mechanism 9 and the folding hydraulic cylinder 11 form a stable triangular structure, and the stability of the supporting shoe 10 is improved. When the supporting shoes 10 are not used, the folding hydraulic cylinders 11 can be stretched, so that the supporting shoes 10 are close to two sides of the supporting mechanism 9 to form a folding state, and the occupied space of the heading machine is saved.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (8)
1. A tunnel boring machine for underground rock mass engineering is characterized by comprising a main beam (7), a driving mechanism (8), a supporting mechanism (9), a connecting mechanism (6) and a cutter head (5);
the cutter head (5) is connected with the main beam (7) through the connecting mechanism (6), the driving mechanism (8) is installed on the supporting mechanism (9), and the driving mechanism (8) is connected with the main beam (7);
the front end of blade disc (5) is equipped with the tool bit array that a plurality of tool bits (3) are constituteed, every row or in every row adjacent two in the tool bit array be equipped with drilling mechanism (4) of embedding blade disc (5) between tool bit (3).
2. A tunneling machine for underground rock mass engineering according to claim 1, characterized in that the drilling mechanism (4) comprises a housing chamber (43) and a telescoping device (45), a driving motor (44) and a drill rod (41) arranged in the housing chamber (43);
one end of the drill rod (41) is connected with the driving motor (44), the drill rod (41) is arranged along the direction parallel to the axial direction of the cutter head (5), and the telescopic device (45) can drive the drill rod (41) to stretch along the direction parallel to the axial direction of the cutter head (5).
3. A tunneling machine for underground rock mass engineering according to claim 2, characterized in that the front end of the accommodating cavity (43) is provided with a plug (42), and the part of the plug (42) corresponding to the drill rod (41) is provided with a through hole.
4. The tunneling machine for underground rock mass engineering according to claim 3, wherein the plug (42) is made of a material having a carbon content of less than 0.7%, a strength higher than 30% of the strength of the cutter head (5), and an abrasion resistance not lower than the material of the cutter head (5).
5. A tunneling machine for underground rock mass engineering according to claim 4, characterized in that the carbon content of the plugging (42) material is 0.5-0.6%.
6. A tunneling machine for underground rock mass engineering according to claim 2, characterized in that said telescoping device (45) comprises a connecting member (451), a drive shaft (452) and a hydraulic pump (453), said drive motor (44) is connected to said drive shaft (452) through said connecting member (451), and said hydraulic pump (453) is connected to said drive shaft (452).
7. A tunneling machine for underground rock mass engineering according to claim 1, characterized in that said cutterhead (5) is detachably connected to said connection mechanism (6).
8. The tunneling machine for the underground rock mass engineering according to claim 1, wherein a supporting shoe (10) and a folding hydraulic cylinder (11) are respectively arranged on two opposite sides of the supporting mechanism (9), the tail end of the supporting shoe (10) is hinged to the supporting mechanism (9), one end of the folding hydraulic cylinder (11) is hinged to the supporting mechanism (9), and the other end of the folding hydraulic cylinder (11) is hinged to the other end of the supporting shoe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061267.3A CN112196558B (en) | 2020-09-30 | 2020-09-30 | Tunnel boring machine for underground rock mass engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061267.3A CN112196558B (en) | 2020-09-30 | 2020-09-30 | Tunnel boring machine for underground rock mass engineering |
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| Publication Number | Publication Date |
|---|---|
| CN112196558A true CN112196558A (en) | 2021-01-08 |
| CN112196558B CN112196558B (en) | 2024-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011061267.3A Active CN112196558B (en) | 2020-09-30 | 2020-09-30 | Tunnel boring machine for underground rock mass engineering |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833487A (en) * | 2021-08-17 | 2021-12-24 | 中南大学 | Flexible rock drilling robot capable of penetrating through rock and rock breaking method thereof |
| CN114278320A (en) * | 2021-12-28 | 2022-04-05 | 安徽唐兴装备科技股份有限公司 | Push bench for establishing support in coal mine tunnel |
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|---|---|---|---|---|
| JPH10317880A (en) * | 1997-05-22 | 1998-12-02 | Komatsu Ltd | Method and device for controlling excavation of tunnel boring machine |
| CN203847124U (en) * | 2014-05-16 | 2014-09-24 | 中国铁建重工集团有限公司 | Novel full fracture surface hard rock tunneling machine |
| CN104110262A (en) * | 2014-07-21 | 2014-10-22 | 洛阳理工学院 | Drilling and rolling combination cutter disc structure for TBM (tunnel boring machine) |
| CN204002821U (en) * | 2014-07-21 | 2014-12-10 | 洛阳理工学院 | A kind of brill for TBM rolls the cutter head structure of combination |
| CN104265315A (en) * | 2014-09-30 | 2015-01-07 | 中铁工程装备集团有限公司 | Novel hard rock tunnel tunneling machine capable of expanding excavation |
| CN108590688A (en) * | 2018-04-19 | 2018-09-28 | 中国矿业大学(北京) | A kind of TBM development machines and its tunneling construction method with hydraulic drill rig |
| CN208793003U (en) * | 2018-08-30 | 2019-04-26 | 中铁十八局集团有限公司 | Advance borehole device in a kind of TBM cutterhead |
| CN214330628U (en) * | 2020-09-30 | 2021-10-01 | 清华大学 | Tunnel boring machine for underground rock mass engineering |
-
2020
- 2020-09-30 CN CN202011061267.3A patent/CN112196558B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10317880A (en) * | 1997-05-22 | 1998-12-02 | Komatsu Ltd | Method and device for controlling excavation of tunnel boring machine |
| CN203847124U (en) * | 2014-05-16 | 2014-09-24 | 中国铁建重工集团有限公司 | Novel full fracture surface hard rock tunneling machine |
| CN104110262A (en) * | 2014-07-21 | 2014-10-22 | 洛阳理工学院 | Drilling and rolling combination cutter disc structure for TBM (tunnel boring machine) |
| CN204002821U (en) * | 2014-07-21 | 2014-12-10 | 洛阳理工学院 | A kind of brill for TBM rolls the cutter head structure of combination |
| CN104265315A (en) * | 2014-09-30 | 2015-01-07 | 中铁工程装备集团有限公司 | Novel hard rock tunnel tunneling machine capable of expanding excavation |
| CN108590688A (en) * | 2018-04-19 | 2018-09-28 | 中国矿业大学(北京) | A kind of TBM development machines and its tunneling construction method with hydraulic drill rig |
| CN208793003U (en) * | 2018-08-30 | 2019-04-26 | 中铁十八局集团有限公司 | Advance borehole device in a kind of TBM cutterhead |
| CN214330628U (en) * | 2020-09-30 | 2021-10-01 | 清华大学 | Tunnel boring machine for underground rock mass engineering |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833487A (en) * | 2021-08-17 | 2021-12-24 | 中南大学 | Flexible rock drilling robot capable of penetrating through rock and rock breaking method thereof |
| CN114278320A (en) * | 2021-12-28 | 2022-04-05 | 安徽唐兴装备科技股份有限公司 | Push bench for establishing support in coal mine tunnel |
| CN114278320B (en) * | 2021-12-28 | 2024-03-19 | 安徽唐兴装备科技股份有限公司 | Push bench for establishing support in coal mine tunnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112196558B (en) | 2024-07-12 |
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