CN211342919U - Equipment for rapid and safe tunnel construction under high ground stress and high geological hazards - Google Patents
Equipment for rapid and safe tunnel construction under high ground stress and high geological hazards Download PDFInfo
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- CN211342919U CN211342919U CN201922210564.9U CN201922210564U CN211342919U CN 211342919 U CN211342919 U CN 211342919U CN 201922210564 U CN201922210564 U CN 201922210564U CN 211342919 U CN211342919 U CN 211342919U
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Abstract
The utility model belongs to the special mechanical equipment field of tunnel construction, it includes blade disc, a plurality of tool bits, a plurality of slabstone groove, conveyer, fore-stock, well support, after-poppet, telescopic link, rotation axis, roofbolter, stock groove, driving motor, swivel bearing fast safe's equipment of tunnel construction under high ground stress high geological hazard. The equipment for rapid and safe tunnel construction under high ground stress and high geological hazards, which is adopted by the method, adopts the telescopic rod to advance and retreat, and can advance and retreat freely in the excavation process. The method has the characteristics of simple process, flexible operation and high construction speed.
Description
Technical Field
The utility model belongs to tunnel construction professional mechanical equipment field, concretely relates to equipment of quick safe tunnel construction under high ground stress high geological hazard.
Background
With the development of society, the civil engineering industry plays an increasingly important role in national economic construction. Because the construction scale is continuously enlarged and the available space on the earth surface is gradually reduced, various underground projects must be built to meet the requirements of various fields of water conservancy and hydropower development, metal coal mining, traffic engineering construction, energy storage and the like in China. The tunnel is the most common building form in underground engineering construction, and plays a very important role in underground development, and the tunnel engineering construction also shows the trend of enlarging construction scale and increasing burial depth at present. In the field of hydropower, taking a water delivery tunnel project mosaic secondary hydropower station with the largest burial depth and the highest comprehensive difficulty in the existing hydraulic tunnels in the world as an example, the length of a single hole of 4 diversion tunnels reaches 16.7km, the diameter of an excavated hole reaches 14.6m, and the maximum burial depth reaches 2525 m. In the field of traffic engineering, the mileage of tunnel construction in China is continuously increased, and large-scale tunnel groups are continuously emerged. The tunnel of the Chengkun village dam has the total length of 6187m, and the maximum buried depth is 1650 m; the total length of the Qinling tunnel is about 18460m, and the maximum buried depth is 1600 m; the Chongqing Yuzhou tunnel has a total length of about 655m and a maximum buried depth of 1015 m.
Therefore, the tunnel engineering in China has various types and large scale, and the current construction speed is in the forefront of the world. At the same time, however, since the geological conditions below the ground surface are very complicated, there is a possibility that geological disasters such as water inrush and mud inrush, rock burst, ground surface subsidence, and collapse may occur during the construction process, which all bring great challenges to the construction of the tunnel engineering.
The shield machine is the main mechanical equipment of the existing shield method, and plays an important role in the construction of tunnel engineering. The existing shield machine mainly comprises an excavating system, a stable supporting system and a grouting system. Excavation construction is carried out in the front, grouting operation is carried out in the back, and excavation and grouting are carried out synchronously, so that full-face tunneling of the tunnel is realized.
The following problems mainly exist in the construction of the existing shield tunneling machine: the existing shield method adopts large-size diameter full-face tunneling, the construction speed is relatively slow, and the requirement of increasing construction progress cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing an equipment of tunnel construction of quick safety under high ground stress high geological hazard.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the utility model provides an equipment of quick safe tunnel construction under high ground stress high geological hazard, it includes blade disc, a plurality of tool bit, a plurality of ballast groove, conveyer, fore-stock, well support, after-poppet, telescopic link, rotation axis, stock machine, stock groove, driving motor, swivel bearing.
The cutter heads are arranged on the surface of the front end of the cutter head in an annular array mode, and the cutter head is fixedly connected with the rotating shaft; the rock slag grooves penetrate through the cutter head, one ends of the rock slag grooves are respectively arranged on the surface of the front end of the cutter head in an annular array mode, the other ends of the rock slag grooves are arranged at the front end of the conveyor in an annular array mode, and the rock slag grooves are used for conveying rocks crushed by the cutter head to the conveyor; the rotating bearing is rotatably sleeved on the cutter head; the rotary bearing is connected with the front bracket through a telescopic rod; the front bracket, the middle bracket and the rear bracket are rotatably sleeved on the rotating shaft; the front bracket is arranged between the middle bracket and the cutter head, the middle bracket is arranged between the front bracket and the rear bracket, and two sides of the middle bracket are respectively connected with the front bracket and the rear bracket through telescopic rods; the driving motor is fixedly connected with the rear support, and a motor shaft of the driving motor is fixedly connected with the rotating shaft;
one end of the conveyor is arranged at the rear end of the cutter head, and the other end of the conveyor extends to the rear part of the rear support.
The front support, the middle support and the rear support are all annularly provided with four anchor rod grooves; an anchor rod machine is arranged in each anchor rod groove.
When the equipment for rapid and safe tunnel construction under high ground stress and high geological hazards is used, the rock of the tunnel is anchored by the bolting machines accommodated in the bolting grooves in the front support, the middle support and the rear support in the tunnel; starting a driving motor to drive a rotating shaft to rotate; the rotating shaft drives a plurality of tool bits on the tool pan to rotate to break the rock; the telescopic rod connected with the rotary bearing is extended to drive the cutter head to break rock forwards; the crushed rock is conveyed to the conveyor by the plurality of stone slag grooves and then conveyed to the rear part of the rear support by the conveyor.
Further, the cutter head, the front bracket, the middle bracket and the rear bracket are all cylindrical; the diameter of the cutter head is 2.5m to 4m, and the diameters of the front support, the middle support and the rear support are the same and are all smaller than the diameter of the cutter head.
The cutter heads are disc-shaped hobs.
Furthermore, the cutter heads are divided into a group of three cutter heads which are annularly arranged on the surface of the front end of the cutter head, and each group of cutter heads is correspondingly provided with a slag groove.
The driving motor is a low-speed high-torque outer rotor permanent magnet synchronous motor.
Furthermore, a plurality of slag grooves are of concave structures, the openings of the concave structures are positioned on the cutter disc and face one side of the cutter heads from the center of the cutter disc, the tail ends of the openings of the concave structures of the slag grooves incline towards the front end of the conveyor, the distances from the front ends of the slag grooves to the center of the surface of the front end of the cutter disc are larger than the distances from the rear ends of the slag grooves to the center of the surface of the front end of the cutter disc, the openings of the concave structures of the rear ends of the slag grooves face away from the front end of the conveyor, when the plurality of slag grooves rotate to the upper side of the front end of the conveyor along with the cutter disc, rocks can fall into the conveyor to be conveyed due to the action.
Further, the conveyor is a screw conveyor or a belt conveyor.
When equipment for rapid and safe tunnel construction under high ground stress and high geological hazards needs to advance, bolting machines arranged on a rear support are retracted, telescopic rods between a middle support and the rear support are retracted, after the retraction is finished, the bolting machines arranged on the rear support are anchored, the bolting machines of the middle support are retracted, the telescopic rods between the middle support and the rear support are extended, and the telescopic rods between a front support and the middle support are retracted to drive the middle support to move towards the front support; after the movement of the middle support is finished, anchoring all the anchor rod machines of the middle support; the anchor rod machines of the front support are retracted, the telescopic rods between the front support and the middle support are extended, and the cutter head moves forwards, so that the whole advance of the equipment for rapid and safe tunnel construction under high ground stress and high geological hazards is completed.
When equipment for rapid and safe tunnel construction under high ground stress and high geological hazards needs to retreat, bolting machines arranged on a front support are all retracted, telescopic rods between a middle support and the front support are retracted, after retraction is finished, the bolting machines arranged on the front support are all anchored, the bolting machines of the middle support are all retracted, meanwhile, the telescopic rods between the middle support and the front support are extended, and meanwhile, the telescopic rods between a rear support and the middle support are retracted to drive the middle support to move towards the rear support; after the middle support moves, anchoring the anchor rod machine of the middle support; the anchor rod machine of after-poppet withdraws, extends the telescopic link between after-poppet and the well support, and the after-poppet moves backward to the whole of equipment of quick safe tunnel construction under high ground stress high geological hazards has been accomplished and has been retreated.
Since the technical scheme is used, the utility model discloses following beneficial effect has: the equipment for rapid and safe tunnel construction under high ground stress and high geological hazards, which is adopted by the method, adopts the telescopic rod to advance and retreat, and can advance and retreat freely in the excavation process. The method has the characteristics of simple process, flexible operation and high construction speed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the rapid and safe tunnel construction equipment under high ground stress and high geological hazards.
FIG. 2 is a schematic view of the structure of the oxygen supply layer and the oxygen supply pipe of the rapid and safe tunnel construction equipment under high ground stress and high geological hazards.
The reference numbers illustrate:
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Telescopic rod 8 | Rotating shaft 9 |
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| Rotating bearing 13 |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
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 some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-2, the utility model provides an equipment of quick safe tunnel construction under high ground stress high geological hazard, it includes blade disc 1, a plurality of tool bit 2, a plurality of ballast groove 3, conveyer 4, fore-stock 5, well support 6, after-poppet 7, telescopic link 8, rotation axis 9, roof bolter 10, roof bolter groove 11, driving motor 12, swivel bearing 13.
The cutter heads 2 are arranged on the surface of the front end of the cutter head 1 in an annular array mode, and the cutter head 1 is fixedly connected with the rotating shaft 9; the plurality of stone slag grooves 3 penetrate through the cutter head 1, one ends of the plurality of stone slag grooves 3 are respectively arranged on the surface of the front end of the cutter head 1 in an annular array mode, the other ends of the plurality of stone slag grooves 3 are arranged at the front end of the conveyor 4 in an annular array mode, and the plurality of stone slag grooves 3 are used for conveying rocks crushed by the cutter head 2 to the conveyor 4; the rotating bearing 13 is rotatably sleeved on the cutter head 1; the rotary bearing 13 is connected with the front bracket 5 through a telescopic rod 8; the front bracket 5, the middle bracket 6 and the rear bracket 7 are rotatably sleeved on the rotating shaft 9; the front bracket 5 is arranged between the middle bracket 6 and the cutter head 1, the middle bracket 6 is arranged between the front bracket 5 and the rear bracket 7, and two sides of the middle bracket 6 are respectively connected with the front bracket 5 and the rear bracket 7 through telescopic rods 8; the driving motor 12 is fixedly connected with the rear support 7, and a motor shaft of the driving motor 12 is fixedly connected with the rotating shaft 9;
the distance from the plurality of cutter heads 2 to the center of the front end surface of the cutter head 1 is larger than the distance from the rear ends of the plurality of slag grooves 3 to the center of the front end surface of the cutter head 1;
one end of the conveyor 4 is arranged at the rear end of the cutter head 1, the other end of the conveyor extends to the rear part of the rear support 7, and the conveyor 4 penetrates through the front support 5, the middle support 6 and the rear support 7 respectively.
The front support 5, the middle support 6 and the rear support 7 are all provided with four anchor rod grooves 11 in an annular shape; a bolting machine 10 is arranged in each bolt groove 11.
When the equipment for rapid and safe tunnel construction under the high ground stress and the high geological hazard is used, the rock of the tunnel is anchored by the bolting machine 10 which is contained in the bolting groove 11 in the front support 5, the middle support 6 and the rear support 7 in the tunnel; starting a driving motor 12 to drive the rotating shaft 9 to rotate; the rotating shaft 9 drives a plurality of cutter heads 2 on the cutter head 1 to rotate to break rocks; the telescopic rod 8 connected with the rotary bearing 13 extends to drive the cutter head 1 to break rock forwards; the crushed rock is transported by a number of ballast chutes 3 to a conveyor 4, where the rock is transported by the conveyor 4 to the rear of a rear support 7.
In the embodiment, the cutter head 1, the front bracket 5, the middle bracket 6 and the rear bracket 7 are all cylindrical;
the plurality of cutter heads 2 are disc-shaped hobs.
In this embodiment, a plurality of ballast grooves 3 are the concave structure, concave structure opening is in 2 one sides of a plurality of tool bits of 1 centre of a circle orientation of blade disc on blade disc 1, and the opening tail end of 3 concave structures in ballast groove inclines to the conveyer front end, and the distance of 3 front ends in a plurality of ballast grooves to the 1 front end surface centre of a circle of blade disc all is greater than the distance of 3 rear ends in a plurality of ballast grooves to the 1 front end surface centre of a circle of blade disc, 3 rear end concave structure openings in a plurality of ballast grooves are 4 front ends dorsad, when making a plurality of ballast grooves 3 follow the rotation of blade disc 1 to conveyer 4 front end top, the rock can fall into and transport on the conveyer 4 because of the effect of gravity.
In the present embodiment, the diameter of the cutterhead 1 is 2.5m to 4m, and the diameters of the front bracket 5, the middle bracket 6 and the rear bracket 7 are the same and are all smaller than the diameter of the cutterhead.
In the present embodiment, the drive motor 12 is a low-speed high-torque outer rotor permanent magnet synchronous motor.
In this embodiment, the plurality of cutter heads 2 are divided into three cutter heads 2 and are annularly arranged on the surface of the front end of the cutter head 1, and each cutter head 2 is correspondingly provided with a slag groove 3.
In this embodiment, the telescopic rod 8 is a telescopic hydraulic cylinder.
When equipment for rapid and safe tunnel construction under high ground stress and high geological hazards needs to advance, the bolting machines 10 arranged on the rear support 7 are all retracted, the telescopic rods 8 between the middle support 6 and the rear support 7 are retracted, the bolting machines 10 arranged on the rear support 7 are all anchored after the retraction is finished, the bolting machines 10 of the middle support 6 are retracted, the telescopic rods 8 between the middle support 6 and the rear support 7 are extended, and the telescopic rods 8 between the front support 5 and the middle support 6 are retracted to drive the middle support 6 to move towards the front support 5; after the movement of the middle support 6 is finished, anchoring all the bolting machines 10 of the middle support 6; the anchor rod machines 10 of the front support 5 are retracted, the telescopic rods 8 between the front support 5 and the middle support 6 are extended, and the cutter head 1 moves forwards, so that the whole of the equipment for tunnel construction which is rapid and safe under the high ground stress and high geological hazards is completed.
When equipment for rapid and safe tunnel construction under high ground stress and high geological hazards needs to retreat, anchor machines 10 arranged on a front support 5 are all retracted, telescopic rods 8 between a middle support 6 and the front support 5 are retracted, the anchor machines 10 arranged on the front support 5 are all anchored after the retraction is finished, the anchor machines 10 of the middle support 6 are all retracted, the telescopic rods 8 between the middle support 6 and the front support 5 are extended, and the telescopic rods 8 between a rear support 7 and the middle support 6 are retracted to drive the middle support 6 to move towards the rear support 7; after the middle support 6 is moved, anchoring the bolting machine 10 of the middle support 6; the anchor rod machine 10 of the rear support 7 is retracted, the telescopic rods 8 between the rear support 7 and the middle support 6 are extended, and the rear support 7 moves backwards, so that the whole device for tunnel construction is quickly and safely retreated under the conditions of high ground stress and high geological hazards.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. A device for rapid and safe tunnel construction under high ground stress and high geological hazards is characterized by comprising a cutter head, a plurality of cutter heads, a plurality of slag grooves, a conveyor, a front support, a middle support, a rear support, a telescopic rod, a rotating shaft, an anchor rod machine, an anchor rod groove, a driving motor and a rotating bearing;
the cutter heads are arranged on the surface of the front end of the cutter head in an annular array mode, and the cutter head is fixedly connected with the rotating shaft; the rock slag grooves penetrate through the cutter head, one ends of the rock slag grooves are respectively arranged on the surface of the front end of the cutter head in an annular array mode, the other ends of the rock slag grooves are arranged at the front end of the conveyor in an annular array mode, and the rock slag grooves are used for conveying rocks crushed by the cutter head to the conveyor; the rotating bearing is rotatably sleeved on the cutter head; the rotary bearing is connected with the front bracket through a telescopic rod; the front bracket, the middle bracket and the rear bracket are rotatably sleeved on the rotating shaft; the front bracket is arranged between the middle bracket and the cutter head, the middle bracket is arranged between the front bracket and the rear bracket, and two sides of the middle bracket are respectively connected with the front bracket and the rear bracket through telescopic rods; the driving motor is fixedly connected with the rear support, and a motor shaft of the driving motor is fixedly connected with the rotating shaft;
the distance from the plurality of cutter heads to the center of the circle of the surface of the front end of the cutter head is larger than the distance from the plurality of slag grooves to the center of the circle of the surface of the front end of the cutter head;
one end of the conveyor is arranged at the rear end of the cutter head, and the other end of the conveyor extends to the rear part of the rear bracket;
the front support, the middle support and the rear support are all annularly provided with four anchor rod grooves; an anchor rod machine is arranged in each anchor rod groove.
2. The apparatus of claim 1, wherein the plurality of cutters are annularly arranged on the front end surface of the cutter head in a group of three cutters, and each group of cutters is correspondingly provided with a ballast groove.
3. The apparatus for rapid and safe tunnel construction under high ground stress and geological hazards as claimed in claim 1 wherein the cutterhead, the front bracket, the middle bracket and the rear bracket are all cylindrical.
4. The apparatus for rapid and safe tunnel construction under high ground stress and geological hazards as claimed in claim 1 wherein the plurality of cutter heads are disk hobs.
5. The apparatus for rapid and safe tunnel construction under high ground stress and high geological hazards as claimed in claim 1 wherein the conveyor is a screw conveyor or a belt conveyor.
6. The apparatus for rapid and safe tunnel construction under high ground stress and geological hazards as recited in claim 1, wherein the driving motor is a low speed high torque outer rotor permanent magnet synchronous motor.
7. The apparatus for rapid and safe tunnel construction under high ground stress and high geological hazard according to any one of claims 1-5, wherein the diameter of the cutterhead is 2.5m to 4m, and the diameters of the front support, the middle support and the rear support are the same and are all smaller than the diameter of the cutterhead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922210564.9U CN211342919U (en) | 2019-12-11 | 2019-12-11 | Equipment for rapid and safe tunnel construction under high ground stress and high geological hazards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922210564.9U CN211342919U (en) | 2019-12-11 | 2019-12-11 | Equipment for rapid and safe tunnel construction under high ground stress and high geological hazards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211342919U true CN211342919U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922210564.9U Active CN211342919U (en) | 2019-12-11 | 2019-12-11 | Equipment for rapid and safe tunnel construction under high ground stress and high geological hazards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211342919U (en) |
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2019
- 2019-12-11 CN CN201922210564.9U patent/CN211342919U/en active Active
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