CN113107512B - Tunnel boring machine and shoe supporting device thereof - Google Patents
Tunnel boring machine and shoe supporting device thereof Download PDFInfo
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- CN113107512B CN113107512B CN202110287445.2A CN202110287445A CN113107512B CN 113107512 B CN113107512 B CN 113107512B CN 202110287445 A CN202110287445 A CN 202110287445A CN 113107512 B CN113107512 B CN 113107512B
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- 230000005641 tunneling Effects 0.000 claims description 13
- 230000002146 bilateral effect Effects 0.000 claims description 4
- 239000011435 rock Substances 0.000 abstract description 32
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009975 flexible effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
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Abstract
The invention relates to a tunnel boring machine and a shoe supporting device thereof, wherein the shoe supporting device comprises: the supporting shoe comprises a saddle frame, wherein a main supporting shoe oil cylinder and a main supporting shoe are arranged on the saddle frame, an auxiliary supporting shoe oil cylinder and an auxiliary supporting shoe are further arranged on the saddle frame, the supporting area of the auxiliary supporting shoe is smaller than the supporting area of the main supporting shoe, the auxiliary supporting shoe is aligned with the main supporting shoe in the extending direction of the tunnel, and the auxiliary supporting shoe and the main supporting shoe are arranged in a staggered mode in the circumferential direction of the tunnel. When the tunnel boring machine passes through a hard rock area, the tunnel can be propped only by the main supporting shoe, when the tunnel boring machine passes through a weak and broken surrounding rock area, enough supporting reaction force cannot be provided only by the main supporting shoe, the auxiliary supporting shoe is driven by the auxiliary supporting shoe oil cylinder to move to a propping position, the auxiliary supporting shoe and the main supporting shoe prop the tunnel together, the propping area of the supporting shoe device can be increased, the reaction force on the tunnel in unit area is reduced, the tunnel boring machine can be effectively propped at the weak and broken surrounding rock, and when the supporting shoe device is applied to the tunnel boring machine, the passing rate of the tunnel boring machine at the weak and broken surrounding rock can be effectively improved.
Description
Technical Field
The invention relates to a tunnel boring machine and a shoe supporting device thereof.
Background
The tunnel boring machine is used for tunnel construction, and when the tunnel boring machine works, a supporting shoe support on the supporting shoe device needs to be supported on the tunnel wall to provide supporting counter force for the tunneling of a cutter head at the front end of the main beam.
The existing heading machine has more supporting shoe structure types, horizontal floating type supporting shoe structures, vertical floating type supporting shoe structures and X-shaped supporting shoe structures. The horizontally floating structure includes two supporting shoes arranged in bilateral symmetry, such as a left supporting shoe and a right supporting shoe disclosed in patent document with publication number CN 204532358U. The vertical floating structure comprises an upper supporting shoe and a lower supporting shoe which are positioned at the upper side and the lower side of the main beam, such as the upper supporting shoe and the lower supporting shoe disclosed in the Chinese patent document with the publication number of CN 108756917B. The X-shaped supporting shoe structure comprises four supporting shoes arranged in an X shape, such as the X-shaped supporting shoe structure disclosed in chinese patent publication with publication number CN 103899322B.
No matter what kind prop the boots structure, prop the boots and all will prop and prop on the hole wall, for example the open-type TBM that discloses in the chinese utility model patent that the grant bulletin number is CN204532358U, including the girder, girder anterior installation shield, the installation main drive on the shield, the main drive front end sets up the blade disc, and it is equipped with the saddle to slide on the girder, is equipped with on the saddle to prop the boots hydro-cylinder, props boots hydro-cylinder output and is connected with and props the boots. And a main propulsion oil cylinder is arranged between the main beam and the supporting shoes, and when the supporting shoes support against the wall of the tunnel, the main propulsion oil cylinder extends to apply a thrusting acting force to the main beam and drive the main beam to drive the cutter head to drive forwards.
Of course, as for the above-mentioned horizontal floating type supporting shoe, there are two main types of such supporting shoe structures, the first type is that a slot is reserved in the middle of the supporting shoe, the supporting shoe spans a ring steel arch, the matching between the supporting shoe and the steel arch is easy, the application of the structure is more, but the structure is affected by the propelling stroke and the steel arch, and the supporting area of the structure is usually limited; the second type is that two slots are reserved on the supporting boot, the slots are matched with the steel arch frames, the supporting boot spans the two ring arch frames, the supporting area is large, but because the supporting boot needs to span the two ring arch frames, the supporting boot slots need to be matched with the two ring steel arch frames simultaneously during actual use, the matching is difficult, the steel arch frames are easy to extrude, and the supporting boot with the structure is rarely used at present.
In fact, for a heading machine, if the tunnel wall strength is high, such as in a hard rock state, the supporting shoe is often capable of providing a sufficient supporting reaction force, and if weak and broken surrounding rocks are encountered, because the bearable pressure of the rocks is small, this requires that the supporting area is large enough, and the ground pressure ratio of the supporting shoe (the contact pressure of the supporting shoe and the surrounding rocks) is reduced, that is, on the premise of ensuring the total supporting reaction force, the contact pressure with the surrounding rocks in a unit area is reduced by configuring a large supporting area. However, no matter which kind of supporting shoe structure is adopted, the problem that the supporting area is fixed exists at present, and the normal supporting shoe is used in a hard rock area, so that a soft and weak broken surrounding rock area cannot be effectively supported to provide enough supporting reaction force, and the normal tunneling of the tunneling machine cannot be guaranteed.
Disclosure of Invention
The invention aims to provide a supporting shoe device of a tunnel boring machine, which aims to solve the technical problem that a supporting shoe normally used in a hard rock area cannot effectively support a soft and weak broken surrounding rock area due to a certain supporting area of a supporting tunnel in the prior art. Meanwhile, the invention also provides a tunnel boring machine using the shoe supporting device, so as to solve the technical problem that a weak and broken surrounding rock area cannot be effectively supported due to a certain supporting area in the prior art to provide effective supporting reaction force.
In order to achieve the purpose, the technical scheme of the shoe supporting device of the tunnel boring machine provided by the invention is as follows: a shoe support device for a tunnel boring machine, comprising:
the saddle is used for being assembled on a main beam of the tunneling machine in a sliding manner;
the main supporting shoe oil cylinder is arranged on the saddle frame, and the output end of the main supporting shoe oil cylinder is provided with a main supporting shoe for supporting and jacking a tunnel so as to provide tunneling supporting counter force for the tunnel boring machine;
the auxiliary shoe supporting oil cylinder is arranged on the saddle, the output end of the auxiliary shoe supporting oil cylinder is connected with an auxiliary shoe, and the supporting area of the auxiliary shoe supporting is smaller than that of the main shoe supporting;
the auxiliary supporting shoe oil cylinder drives the auxiliary supporting shoe to move when extending along the radial direction of the tunnel, the auxiliary supporting shoe has a supporting position for supporting and jacking the tunnel on the moving stroke of the auxiliary supporting shoe, the auxiliary supporting shoe is driven to move to the supporting position to support and jack the tunnel when extending outwards, and the auxiliary supporting shoe is driven to not support and jack the tunnel when retracting;
in the extending direction of the tunnel, the auxiliary supporting shoes and the main supporting shoes are aligned, and in the circumferential direction of the tunnel, the auxiliary supporting shoes and the main supporting shoes are arranged in a staggered mode.
The beneficial effects are that: the invention provides a shoe supporting device of a tunnel boring machine, which is provided with a main supporting shoe and a main supporting shoe oil cylinder as well as an auxiliary supporting shoe and an auxiliary supporting shoe oil cylinder, wherein when the tunnel passes through a hard rock area, the tunnel can be supported only by the main supporting shoe to provide a supporting counter force, at the moment, the auxiliary supporting shoe does not support the tunnel, when the tunnel passes through a weak and broken surrounding rock area, the auxiliary supporting shoe oil cylinder drives the auxiliary supporting shoe to move to a supporting position, the auxiliary supporting shoe and the main supporting shoe support the tunnel together, so that the supporting area of the shoe supporting device can be increased, the counter force to the tunnel in a unit area can be reduced, the tunnel can be effectively supported at the weak and broken surrounding rock, and when the shoe supporting device is applied to the tunnel boring machine, the passing rate of the tunnel boring machine at the weak and broken surrounding rock can be effectively improved.
As a further improvement, the auxiliary shoe supporting oil cylinder is hinged to the saddle, one end of the auxiliary shoe supporting is hinged to the main shoe supporting, and the other end of the auxiliary shoe supporting is hinged to the auxiliary shoe supporting oil cylinder so that the auxiliary shoe supporting oil cylinder drives the auxiliary shoe supporting to swing.
The beneficial effects are that: the auxiliary shoe supporting oil cylinder is hinged to the saddle, the auxiliary shoe supporting is hinged to the main shoe supporting oil cylinder, the auxiliary shoe supporting and the auxiliary shoe supporting oil cylinder are convenient to arrange, and the unused space beside the main shoe supporting is convenient to utilize.
As a further improvement, the two main supporting shoes are symmetrically arranged on the left and right, each main supporting shoe is hinged with the auxiliary supporting shoe, and the auxiliary supporting shoe oil cylinders are arranged corresponding to the auxiliary supporting shoes respectively.
The beneficial effects are that: the main supporting boots are arranged in a bilateral symmetry mode, so that the supporting boot device is of a horizontal floating type supporting boot structure, and auxiliary supporting boots can be conveniently arranged corresponding to the main supporting boots.
As a further improvement, the upper end and/or the lower end of each side of the main supporting boot is hinged with the auxiliary supporting boot, the corresponding auxiliary supporting boot hinged with the upper end of the main supporting boot is positioned above the corresponding main supporting boot in the supporting position, and the corresponding auxiliary supporting boot hinged with the lower end of the main supporting boot is positioned below the corresponding main supporting boot in the supporting position.
The beneficial effects are that: the auxiliary supporting boots are conveniently arranged by utilizing the unused space at the upper side and/or the lower side of the main supporting boot.
As a further improvement, one end of each auxiliary supporting shoe, which is far away from the corresponding main supporting shoe, is hinged with the corresponding auxiliary supporting shoe oil cylinder in the circumferential direction of the tunnel.
The beneficial effects are that: the auxiliary shoe supporting oil cylinder is hinged with the corresponding end of the auxiliary shoe supporting, so that the auxiliary shoe supporting oil cylinder is convenient to hinge, the auxiliary shoe supporting oil cylinder is convenient to drive the auxiliary shoe supporting oil cylinder to support the tunnel, and the reverse acting force along with the shoe supporting oil cylinder is relatively small.
The technical scheme of the tunnel boring machine provided by the invention is as follows: a tunnel boring machine comprising:
the main beam is provided with a shoe supporting device;
the shoe supporting device comprises:
a saddle slidably fitted on the main beam;
the main supporting shoe oil cylinder is arranged on the saddle frame, and the output end of the main supporting shoe oil cylinder is provided with a main supporting shoe for supporting and jacking a tunnel so as to provide tunneling supporting counter force for the tunnel boring machine;
the main propulsion oil cylinder is arranged between the main supporting shoe oil cylinder and the main beam;
the auxiliary shoe supporting oil cylinder is arranged on the saddle, the output end of the auxiliary shoe supporting oil cylinder is connected with an auxiliary shoe, and the supporting area of the auxiliary shoe supporting is smaller than that of the main shoe supporting;
the auxiliary supporting shoe oil cylinder drives the auxiliary supporting shoe to move when extending along the radial direction of the tunnel, the auxiliary supporting shoe has a supporting position for supporting and jacking the tunnel on the moving stroke of the auxiliary supporting shoe, the auxiliary supporting shoe is driven to move to the supporting position to support and jack the tunnel when extending outwards, and the auxiliary supporting shoe is driven to not support and jack the tunnel when retracting;
in the extending direction of the tunnel, the auxiliary supporting shoes and the main supporting shoes are aligned, and in the circumferential direction of the tunnel, the auxiliary supporting shoes and the main supporting shoes are arranged in a staggered mode.
The beneficial effects are that: in the tunnel boring machine provided by the invention, the shoe supporting device is not only provided with the main supporting shoe and the main supporting shoe oil cylinder, but also provided with the auxiliary supporting shoe and the auxiliary supporting shoe oil cylinder, when the tunnel passes through a hard rock area, the tunnel can be supported only by the main supporting shoe to provide a supporting counter force, at the moment, the auxiliary supporting shoe does not support the tunnel, when the tunnel passes through a weak and broken surrounding rock area, the auxiliary supporting shoe oil cylinder drives the auxiliary supporting shoe to move to a supporting position, the auxiliary supporting shoe and the main supporting shoe support the tunnel together, the supporting area of the shoe supporting device can be increased, the counter force on the tunnel in unit area can be reduced, the tunnel can be effectively supported at the weak and broken surrounding rock, and when the shoe supporting device is applied to the tunnel boring machine, the passing rate of the tunnel boring machine at the weak and broken surrounding rock can be effectively improved.
As a further improvement, the auxiliary shoe supporting oil cylinder is hinged to the saddle, one end of the auxiliary shoe supporting is hinged to the main shoe supporting, and the other end of the auxiliary shoe supporting is hinged to the auxiliary shoe supporting oil cylinder so that the auxiliary shoe supporting oil cylinder drives the auxiliary shoe supporting to swing.
The beneficial effects are that: the auxiliary shoe supporting oil cylinder is hinged to the saddle, the auxiliary shoe supporting is hinged to the main shoe supporting oil cylinder, the auxiliary shoe supporting and the auxiliary shoe supporting oil cylinder are convenient to arrange, and the unused space beside the main shoe supporting is convenient to utilize.
As a further improvement, the two main supporting shoes are symmetrically arranged on the left and right, each main supporting shoe is hinged with the auxiliary supporting shoe, and the auxiliary supporting shoe oil cylinders are arranged corresponding to the auxiliary supporting shoes respectively.
The beneficial effects are that: the main supporting boots are arranged in a bilateral symmetry mode, so that the supporting boot device is of a horizontal floating type supporting boot structure, and auxiliary supporting boots can be conveniently arranged corresponding to the main supporting boots.
As a further improvement, the upper end and/or the lower end of each side of the main supporting boot is hinged with the auxiliary supporting boot, the corresponding auxiliary supporting boot hinged with the upper end of the main supporting boot is positioned above the corresponding main supporting boot in the supporting position, and the corresponding auxiliary supporting boot hinged with the lower end of the main supporting boot is positioned below the corresponding main supporting boot in the supporting position.
The beneficial effects are that: the auxiliary supporting boots are conveniently arranged by utilizing the unused space at the upper side and/or the lower side of the main supporting boot.
As a further improvement, one end of each auxiliary supporting shoe, which is far away from the corresponding main supporting shoe, is hinged with the corresponding auxiliary supporting shoe oil cylinder in the circumferential direction of the tunnel.
The beneficial effects are that: the auxiliary shoe supporting oil cylinder is hinged with the corresponding end of the auxiliary shoe supporting, so that the auxiliary shoe supporting oil cylinder is convenient to hinge, the auxiliary shoe supporting oil cylinder is convenient to drive the auxiliary shoe supporting oil cylinder to support the tunnel, and the reverse acting force along with the shoe supporting oil cylinder is relatively small.
Drawings
Fig. 1 is a schematic structural view of a tunnel boring machine according to the present invention;
FIG. 2 is a schematic view of the assembly of the shoe support device and the main beam of FIG. 1;
fig. 3 is a schematic structural view of the main supporting shoe of the shoe supporting device in fig. 1 supporting the tunnel and the auxiliary supporting shoe is retracted.
Description of reference numerals:
1. a main beam; 2. a saddle; 3. a main supporting shoe oil cylinder; 4. a main support boot; 5. auxiliary supporting boots; 6. an auxiliary shoe supporting oil cylinder; 7. a main propulsion cylinder; 8. and (4) tunneling.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration only, not by way of limitation, i.e., the embodiments described are intended as a selection of the best mode contemplated for carrying out the invention, not as a full mode. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
The specific embodiment 1 of the tunnel boring machine provided by the invention:
as shown in fig. 1, 2 and 3, the tunnel boring machine in this embodiment is an open type TBM, and the TBM includes a main beam 1, and a main drive is arranged at the front end of the main beam 1 and is used for driving a cutterhead to rotate and excavating a tunnel 8. The structures of the main beam 1, the main drive and the cutter head are the same as the corresponding structures of the main beam 1, the main drive and the cutter head of the TBM in the prior art, and are not described again here.
The main beam 1 is provided with a walking track, the walking track extends along the extending direction of the main beam 1, the main beam 1 is provided with a shoe supporting device, the shoe supporting device is of a horizontal floating type shoe supporting structure and specifically comprises a saddle frame 2, the saddle frame 2 is movably assembled on the walking track of the main beam 1, the saddle frame 2 is respectively provided with main shoe oil cylinders 3 on the left side and the right side of the main beam 1, the outer side output ends of the main shoe oil cylinders 3 are provided with main supporting shoes 4, the two main supporting shoes 4 are symmetrically arranged on the left side and the right side of the main beam 1, actually, the ball heads of the main supporting shoes 4 are hinged to the main shoe oil cylinders 3, and when the main shoe oil cylinders 3 extend out, the main supporting shoes 4 are driven to support the wall of the tunnel 8 so as to provide tunneling support counter force for the tunneling machine.
And a main propulsion oil cylinder 7 is arranged between the main supporting shoe 4 and the main beam 1, one end of the main propulsion oil cylinder 7 is hinged with the main beam 1, the other end of the main propulsion oil cylinder 7 is hinged with the main supporting shoe 4, and when the main supporting shoe 4 supports the wall of the tunnel 8, the main propulsion oil cylinder 7 extends to drive the main beam 1 to move forwards.
The structures of the main supporting shoe 4, the main supporting shoe oil cylinder 3 and the main pushing oil cylinder 7 are the same as those of the supporting shoe, the supporting shoe oil cylinder and the main pushing oil cylinder 7 of the open type TBM in the prior art, and are not described herein again.
In this embodiment, the lower end of each main supporting shoe 4 is hinged with an auxiliary supporting shoe 5, an auxiliary supporting shoe oil cylinder 6 is arranged between the auxiliary supporting shoe 5 and the saddle frame 2, one end of the auxiliary supporting shoe oil cylinder 6 is hinged with the saddle frame 2, and the output end of the auxiliary supporting shoe oil cylinder is hinged with the corresponding end of the auxiliary supporting shoe 5 far away from the main supporting shoe 4. Thus, the auxiliary shoe 5 and the main shoe 4 are aligned in the tunnel extending direction, and the auxiliary shoe 5 and the main shoe 4 are arranged offset in the tunnel circumferential direction, in terms of the relative positions of the auxiliary shoe 5 and the main shoe 4.
When the auxiliary shoe supporting oil cylinder 6 stretches out and draws back along the radial direction of the tunnel, the auxiliary shoe supporting oil cylinder 6 can drive the auxiliary shoe supporting 5 to swing, the auxiliary shoe supporting 5 is provided with a supporting position on the swing stroke, and the auxiliary shoe supporting 5 in the supporting position can support the tunnel 8 downwards to increase the contact area with the wall of the tunnel 8. When the supporting is not needed, the auxiliary supporting shoe oil cylinder 6 retracts to drive the auxiliary supporting shoe 5 to not support the tunnel 8 any more.
The auxiliary supporting shoe oil cylinder 6 can drive the auxiliary supporting shoe 5 to rotate for a certain angle around a hinged joint of the auxiliary supporting shoe 5 and the main supporting shoe 4, so that the wall of the tunnel 8 can be tightly supported at the supporting top position.
The auxiliary supporting shoes 5 on the two sides are symmetrically arranged, the supporting areas of the two auxiliary supporting shoes 5 are smaller than the supporting areas of the two main supporting shoes 4, and the supporting area of each auxiliary supporting shoe 5 is smaller than the supporting area of the main supporting shoe 4.
When the open type TBM provided by the embodiment passes through a hard rock area, the main supporting shoe 4 is driven to extend out by the main supporting shoe oil cylinder 3 as in the prior art, and the main supporting shoe 4 is supported on the wall of the hard rock tunnel 8, so that sufficient supporting reaction force can be provided, and normal tunneling of the TBM is ensured. At this time, as shown in fig. 3, the auxiliary shoe supporting cylinder 6 retracts, the auxiliary shoe supporting 5 does not support the wall of the tunnel 8, and the auxiliary shoe supporting 5 is hidden under the main shoe supporting 4.
When a weak surrounding rock area or a broken surrounding rock area is met, in addition to the extension of the main supporting shoe oil cylinder 3 to drive the main supporting shoe 4 to prop the tunnel 8, as shown in fig. 2, the auxiliary supporting shoe oil cylinder 6 is also extended to drive the auxiliary supporting shoe 5 to prop the tunnel 8 together with the main supporting shoe 4, the main supporting shoe 4 and the auxiliary supporting shoe 5 are kept relatively fixed, and the main supporting shoe 4 and the auxiliary supporting shoe 5 bear the reverse thrust and the reverse torque during TBM tunneling together when the tunnel 8 is propped tightly.
Compared with the tunnel 8 supported by the main supporting shoes 4 at the harder surrounding rock region, the tunnel 8 supported by the main supporting shoes 4 and the auxiliary supporting shoes 5 at the weak broken surrounding rock region can effectively increase the supporting area of the supporting shoe devices and the tunnel 8, reduce the acting force borne by the wall of the tunnel 8 in the unit area on the basis of ensuring enough supporting reaction force, and improve the passing rate of the TBM at the weak broken surrounding rock region.
In the tunnel boring machine provided by the embodiment, the supporting area of the supporting shoe device and the tunnel can be increased by adding the auxiliary supporting shoe, so that the passing rate of the boring machine in a weak and broken surrounding rock area is improved. In addition, the auxiliary shoe supporting device mainly utilizes the unused space at the lower part of the main shoe supporting of the existing open TBM, does not need to greatly change the whole shoe supporting device, is convenient to process and manufacture, and is also convenient to modify the existing TBM.
The specific embodiment 2 of the tunnel boring machine provided by the invention is as follows:
the difference from example 1 is mainly that: in example 1, the main shoe of each side is hinged with the auxiliary shoe only at the lower end. In this embodiment, since the upper space of the main shoe is not utilized, the auxiliary shoe may be hinged at the upper end of the main shoe, in which case the auxiliary shoe cylinder is disposed at the upper side.
Of course, in other embodiments, the upper end of each side of the main supporting shoe may be hinged to an upper auxiliary supporting shoe, the lower end of each side of the main supporting shoe may be hinged to a lower auxiliary supporting shoe, and an auxiliary supporting shoe cylinder may be respectively disposed corresponding to each auxiliary supporting shoe to drive the auxiliary supporting shoe to swing.
The specific embodiment 3 of the tunnel boring machine provided by the invention is as follows:
the difference from example 1 is mainly that: in example 1, the auxiliary shoe is hinge-assembled with the main shoe. In this embodiment, can refer to the X-shaped boots structure that props, be fixed with the auxiliary boots hydro-cylinder that props on the saddle, the auxiliary boots hydro-cylinder that props is along the radial flexible action of tunnel, and at this moment, the auxiliary boots that props can be totally by the auxiliary boots hydro-cylinder drive of propping along the radial flexible rectilinear motion of tunnel, and at this moment, there is not the direct connection relation between auxiliary boots and the main boots that prop, and both install on the saddle. When the surrounding rock is broken through weak and weak, the auxiliary supporting shoe oil cylinder drives the auxiliary supporting shoe to extend out in a straight-moving mode so as to support the tunnel, and when the surrounding rock condition is good, the auxiliary supporting shoe can be retracted under the condition that the main supporting shoe can meet the supporting requirement.
The specific embodiment 4 of the tunnel boring machine provided by the invention is as follows:
the difference from example 1 is mainly that: in the embodiment 1, in the circumferential direction of the tunnel, one end of each auxiliary shoe, which is far away from the corresponding main shoe, is hinged to the corresponding auxiliary shoe cylinder. In this embodiment, on the basis that the auxiliary shoe supporting is hinged to the corresponding side main shoe supporting, the auxiliary shoe supporting oil cylinder can also be hinged to the middle of the auxiliary shoe supporting, so that the telescopic stroke of the auxiliary shoe supporting oil cylinder can be reduced.
The specific embodiment 5 of the tunnel boring machine provided by the invention:
the difference from example 1 is mainly that: in embodiment 1, the shoe supporting device is a horizontal floating type shoe supporting device, and auxiliary shoe supporting devices are respectively hinged to the main shoe supporting devices on the left side and the right side. In this embodiment, the shoe supporting device may include upper and lower supporting shoes arranged up and down, such as the upper and lower supporting shoes disclosed in the chinese patent document with the publication number CN108756917B, and corresponding to such a shoe supporting structure, auxiliary supporting shoes may be arranged on both left and right sides of the main beam, and similarly, the auxiliary supporting shoes are staggered from the upper and lower supporting shoes in the tunnel circumferential direction and aligned with the upper and lower supporting shoes in the tunnel extending direction. At this time, the auxiliary shoe supporting oil cylinders can be respectively arranged corresponding to the auxiliary shoe supporting at each side, so that each auxiliary shoe supporting can independently move.
Of course, the auxiliary supporting shoe can be hinged with the upper supporting shoe or the lower supporting shoe, and the auxiliary supporting shoe can also be separated from the corresponding main supporting shoe and is completely supported and driven by the auxiliary supporting shoe oil cylinder.
The specific embodiment 6 of the tunnel boring machine provided by the invention is as follows:
the difference from example 1 is mainly that: in embodiment 1, the shoe supporting device is a horizontal floating type shoe supporting device, and auxiliary shoe supporting devices are respectively hinged to the main shoe supporting devices on the left side and the right side. In this embodiment, the shoe supporting device may include four supporting shoes arranged in an X shape, such as an X-shaped shoe supporting structure disclosed in chinese patent document with publication number CN103899322B, at this time, since both the upper side and the lower side spaces of the X-shaped shoe supporting structure have unused spaces, the auxiliary supporting shoes may be arranged at the upper side and/or the lower side unused spaces according to actual needs, and at this time, the auxiliary supporting shoes may be hinged to the corresponding main supporting shoes, or may be supported and driven by the auxiliary supporting shoe oil cylinders completely.
The embodiment of the shoe supporting device of the tunnel boring machine provided by the invention comprises the following steps:
the structure of the shoe supporting device in this embodiment is the same as that of the shoe supporting device in embodiment 1 of the tunnel boring machine described above, and details thereof are not repeated.
Of course, in other embodiments, the shoe supporting device may also adopt the structure of the shoe supporting device in embodiments 2 to 6 of the tunnel boring machine, and will not be described herein again.
The shoe supporting device provided by the invention can be applied to an open type TBM, a shield type TBM or other shield machines, and in fact, the shoe supporting device provided by the invention can be adopted only by tunnel excavation machinery provided with the shoe supporting device.
Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A shoe support device for a tunnel boring machine, comprising:
the saddle (2) is assembled on a main beam (1) of the tunnel boring machine in a sliding manner;
the main supporting shoe oil cylinder (3) is arranged on the saddle (2), and the output end of the main supporting shoe oil cylinder (3) is provided with a main supporting shoe (4) which is used for supporting a tunnel (8) so as to provide tunneling supporting counter force for the tunnel boring machine;
it is characterized by also comprising:
the auxiliary shoe supporting oil cylinder (6) is arranged on the saddle (2), the output end of the auxiliary shoe supporting oil cylinder (6) is connected with an auxiliary shoe (5), and the supporting area of the auxiliary shoe supporting (5) is smaller than that of the main shoe supporting (4);
the auxiliary supporting shoe oil cylinder (6) drives the auxiliary supporting shoe (5) to move when stretching along the radial direction of the tunnel, the auxiliary supporting shoe (5) is provided with a supporting position for supporting and jacking the tunnel (8) on the moving stroke, when the auxiliary supporting shoe oil cylinder (6) extends outwards, the auxiliary supporting shoe (5) is driven to move to the supporting position to support and jack the tunnel (8), and when the auxiliary supporting shoe oil cylinder (6) retracts, the auxiliary supporting shoe (5) is driven not to support and jack the tunnel (8);
the auxiliary shoe supporting oil cylinder (6) is hinged to the saddle (2), one end of the auxiliary shoe supporting (5) is directly hinged to the main shoe supporting (4), and the other end of the auxiliary shoe supporting oil cylinder is hinged to the auxiliary shoe supporting oil cylinder (6) so that the auxiliary shoe supporting (5) is driven to swing by the auxiliary shoe supporting oil cylinder (6);
the auxiliary supporting shoes (5) and the main supporting shoes (4) are aligned in the extending direction of the tunnel, and the auxiliary supporting shoes (5) and the main supporting shoes (4) are arranged in a staggered mode in the circumferential direction of the tunnel.
2. The shoe supporting device of a tunnel boring machine according to claim 1, wherein two main supporting shoes (4) are symmetrically arranged in the left-right direction, each main supporting shoe (4) is hinged with the auxiliary supporting shoe (5), and the auxiliary supporting shoe cylinder (6) is provided corresponding to each auxiliary supporting shoe (5).
3. A shoe-supporting device for a tunnel boring machine according to claim 2, characterized in that the auxiliary shoe (5) is hingedly connected to the upper end and/or the lower end of each of the main shoes (4), the respective auxiliary shoe (5) hingedly connected to the upper end of the main shoe (4) being located above the respective main shoe (4) in the top-supporting position, and the respective auxiliary shoe (5) hingedly connected to the lower end of the main shoe (4) being located below the respective main shoe (4) in the top-supporting position.
4. A shoe supporting device of a tunnel boring machine according to claim 2, wherein an end of each auxiliary shoe (5) remote from the corresponding main shoe (4) is hinged to the corresponding auxiliary shoe cylinder (6) in the tunnel circumferential direction.
5. A tunnel boring machine comprising:
the main beam (1) is provided with a boot supporting device;
the shoe supporting device comprises:
a saddle (2) slidably fitted on said main beam (1);
the main supporting shoe oil cylinder (3) is arranged on the saddle (2), and the output end of the main supporting shoe oil cylinder (3) is provided with a main supporting shoe (4) which is used for supporting a tunnel (8) so as to provide tunneling supporting counter force for the tunnel boring machine;
the main propulsion oil cylinder (7) is arranged between the main supporting shoe oil cylinder (3) and the main beam (1);
it is characterized by also comprising:
the auxiliary shoe supporting oil cylinder (6) is arranged on the saddle (2), the output end of the auxiliary shoe supporting oil cylinder (6) is connected with an auxiliary shoe (5), and the supporting area of the auxiliary shoe supporting (5) is smaller than that of the main shoe supporting (4);
the auxiliary supporting shoe oil cylinder (6) drives the auxiliary supporting shoe (5) to move when stretching along the radial direction of the tunnel, the auxiliary supporting shoe (5) is provided with a supporting position for supporting and jacking the tunnel (8) on the moving stroke, when the auxiliary supporting shoe oil cylinder (6) extends outwards, the auxiliary supporting shoe (5) is driven to move to the supporting position to support and jack the tunnel (8), and when the auxiliary supporting shoe oil cylinder (6) retracts, the auxiliary supporting shoe (5) is driven not to support and jack the tunnel (8);
the auxiliary shoe supporting oil cylinder (6) is hinged to the saddle (2), one end of the auxiliary shoe supporting (5) is directly hinged to the main shoe supporting (4), and the other end of the auxiliary shoe supporting oil cylinder is hinged to the auxiliary shoe supporting oil cylinder (6) so that the auxiliary shoe supporting (5) is driven to swing by the auxiliary shoe supporting oil cylinder (6);
the auxiliary supporting shoes (5) and the main supporting shoes (4) are aligned in the extending direction of the tunnel, and the auxiliary supporting shoes (5) and the main supporting shoes (4) are arranged in a staggered mode in the circumferential direction of the tunnel.
6. The tunnel boring machine according to claim 5, wherein there are two main supporting shoes (4) arranged in bilateral symmetry, each main supporting shoe (4) is hinged with the auxiliary supporting shoe (5), and the auxiliary supporting shoe cylinder (6) is provided corresponding to each auxiliary supporting shoe (5).
7. A tunnel boring machine according to claim 6, wherein the auxiliary shoe (5) is pivotally connected to the upper and/or lower end of each main shoe (4), the respective auxiliary shoe (5) pivotally connected to the upper end of the main shoe (4) being located above the respective main shoe (4) in the jacking position, and the respective auxiliary shoe (5) pivotally connected to the lower end of the main shoe (4) being located below the respective main shoe (4) in the jacking position.
8. A tunnel boring machine according to claim 6, wherein the end of each auxiliary shoe (5) remote from the respective main shoe (4) is articulated with the respective auxiliary shoe cylinder (6) in the tunnel circumferential direction.
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| CN202110287445.2A CN113107512B (en) | 2021-03-17 | 2021-03-17 | Tunnel boring machine and shoe supporting device thereof |
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| CN202110287445.2A CN113107512B (en) | 2021-03-17 | 2021-03-17 | Tunnel boring machine and shoe supporting device thereof |
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| CN113107512A CN113107512A (en) | 2021-07-13 |
| CN113107512B true CN113107512B (en) | 2022-08-02 |
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| CN113464156B (en) * | 2021-07-30 | 2023-04-25 | 太原理工大学 | Auxiliary tightening and propelling mechanism and tunnel boring machine |
| CN113914883B (en) * | 2021-10-11 | 2024-06-07 | 中铁工程装备集团有限公司 | Development machine and unilateral support shoe device thereof |
| CN113898361A (en) * | 2021-10-11 | 2022-01-07 | 中铁工程装备集团有限公司 | Heading machine and supporting shoe unit thereof |
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| DE2502165B1 (en) * | 1975-01-21 | 1976-04-29 | Demag Ag | Mine heading machine forward clamp - has clamping shoes bearer led through body opening and slides parallel to heading line |
| DE68925283D1 (en) * | 1988-04-18 | 1996-02-08 | & Tunneling Services Ing Const | TUNNEL DRILLING MACHINE WITH FOUR TOWING SUPPORT SHOES |
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- 2021-03-17 CN CN202110287445.2A patent/CN113107512B/en active Active
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| GB1161719A (en) * | 1967-08-09 | 1969-08-20 | Hughes Tool Co | Tunnel Digging Machine |
| DE2502165B1 (en) * | 1975-01-21 | 1976-04-29 | Demag Ag | Mine heading machine forward clamp - has clamping shoes bearer led through body opening and slides parallel to heading line |
| DE68925283D1 (en) * | 1988-04-18 | 1996-02-08 | & Tunneling Services Ing Const | TUNNEL DRILLING MACHINE WITH FOUR TOWING SUPPORT SHOES |
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| CN113107512A (en) | 2021-07-13 |
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