AU2020351946A1 - Communication tunnel boring machine - Google Patents
Communication tunnel boring machine Download PDFInfo
- Publication number
- AU2020351946A1 AU2020351946A1 AU2020351946A AU2020351946A AU2020351946A1 AU 2020351946 A1 AU2020351946 A1 AU 2020351946A1 AU 2020351946 A AU2020351946 A AU 2020351946A AU 2020351946 A AU2020351946 A AU 2020351946A AU 2020351946 A1 AU2020351946 A1 AU 2020351946A1
- Authority
- AU
- Australia
- Prior art keywords
- pipe
- boring machine
- shield
- tunnel boring
- thrust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
Abstract
A communication tunnel boring machine comprises a pipe section crane trolley (3). A pipe section conveying device (1) is provided on one side of the pipe section crane trolley. A rear supporting system is provided on the other side of the pipe section crane trolley. The pipe section crane trolley is supported on and spans a counterforce support system. A pipe section pushing system is provided on the counterforce support system. The pipe section pushing system pushes a pipe section (2), and the pipe section acts on a main boring machine (4). An extensible conveying device (13) is provided between the pipe section pushing system and the main boring machine. The boring machine distributes force on a counterforce frame of the counterforce support system to a main tunnel pipe piece by means of a bridge plate, such that sufficient counterforce support is provided during tunnel boring. Muck is discharged continuously, thereby avoiding the case in which boring needs to be stopped when the muck is being discharged from a muck container, and achieving automated mechanical boring.
Description
The present invention relates to tunnel construction equipment, in particular to a tunnel boring
machine for cross passage.
Generally, multiple cross passages are designed and built between two adjacent tunnels in the field
the tunnel construction technology, to play the role of connecting tunnels, drainage, fire extinguishing, and
emergency escape, etc. The cross passages between tunnels are often constructed by freezing method plus mining method. With the development of technologies, mechanized construction has begun to be used in
the cross passage engineering. Compared with the freezing method plus mining method, mechanized
construction has the characteristics of economical efficiency, high safety and short construction period, etc.
At present, most of cross passages for mechanized construction are circular cross-sections, and the
earth pressure balanced type or slurry pressure balanced type tunneling boring machines are mostly used
for construction, while the open type main machine is rarely used. In China, the construction for cross
passages between two subway tunnels is universal, and a number of scientific and technological
achievements have been made, such as the invention patents titled "Shield Machine for Tunnel Cross
Passage " (application number 201621199004.8), "Quasi-rectangular Pipe Jacking Machine for Construction
of Cross Passages" (application number 201610975537.9), "Shield Tunneling Machine for Tunnel Cross
Passages and Tunneling Method of Cross Passages" (application number 201610975537.9), "A Reaction
Support System for the Launching of Shield Machine" (application number 201821022037.4), "Assembled Cross Passage Structure and Construction Method" (application number 201710216575.0), "Angle
Adjusting Device of Jacking Pipe Launch Frame Used for Construction of Tunnel Cross Passages"
(application number 201811002748.X), "Pipe Jacking Support and Jacking System Used for Construction of
Tunnel Cross Passages" (application number 201811005028.9), and "Pipe Built-In Airbag Sealing Device for
Tunnel Cross Passage Pipe Jacking Method and Sealing Method" (application number) 201811000536.8),
and so on.
In order to meet the design requirements for different tunnels, cross passages are sometimes
designed with rectangular cross-sections, which have a higher space utilization rate than that of circular
cross-sections. However, when the above technologies are used for tunneling of rectangular cross-sections,
there are many difficulties for the launching, tunneling, transport and installation of tunneling boring
machine as well as the loading and unloading of pipes, etc.
The present invention provides a tunnel boring machine for cross passage, which can effectively
control ground settlement, has low safety risk, high construction efficiency and low overall cost, thereby
solving the technical difficulties when the existing tunnel boring machine for cross passages are used in
rectangular cross-sections.
The present invention adopts the following technical solutions. A tunnel boring machine for cross
passage, comprising a pipe hoisting trolley, wherein one side of the pipe hoisting trolley is provided with a
pipe transportation device, the other side of which is provided with a back-up system, the pipe hoisting
trolley is straddled on a reaction support system, and the reaction support system is provided with a pipe thrust system, and the pipe thrust system propels a pipe, and the pipe acts on a main machine, and a
telescopic conveying device is provided between the pipe thrust system and the main machine.
The pipe transportation device is a pipe transportation vehicle.
The pipe transportation device is located at the front end of the main tunnel tunneling direction, and
the back-up system is located at the rear end of the main tunnel in the tunneling direction.
The front end of the pipe is provided with a convex portion, the pipe thrust system is provided with a
convex portion on the thrust ring, and the rear end of the pipe is provided with a groove matching with the
convex portion.
The pipe hoisting trolley comprises a travelling beam, a crane is provided on the travelling beam, the
travelling beam is connected with a support mechanism, and the support mechanism is provided with
telescopic legs, and the support mechanism is provided with a rolling traveling wheel.
The support mechanism is connected with the legs through a telescopic cylinder.
The main machine is an open type main machine.
The main machine is in a rectangular section.
The main machine comprises a shield structure, and inside the shield structure is provided with an
excavation device at the front end and a muck conveying device at the back end, and the rear end of the
muck conveying device is provided with a telescopic conveying device.
The front end of the shield is provided with drag bits located on the upper part and on both sides.
The upper part of the shield structure is provided with a breasting plate device at the front end.
A retaining plate device located on the upper part is provided inside the shield structure.
The shield structure comprises a front shield, a middle shield and a tail shield, the front shield is fixedly
connected with the middle shield, and the middle shield is connected with the tail shield through an articulation cylinder.
Both the front shield and the middle shield comprise the upper part and the lower part, and the upper
part is connected with the lower part.
The muck conveying device is a scraper conveyor or a belt conveyor.
The shield structure is provided with a breakthrough cylinder at the rear end.
The back-up system comprises a back-up gantry, and the back-up gantry is provided with a operator
cabinet, a hydraulic system, and a fluid system.
The reaction support system comprises a support platform, the support platform is provided with a
jacking frame and a pipe thrust system, and the jacking frame is connected with the pipe thrust system.
A bridge plate is provided between the jacking frame and the main tunnel segment.
The pipe thrust system comprises a thrust cylinder assembly, one end of the thrust cylinder assembly is
connected with the reaction support system, and the other end of the thrust cylinder assembly is
connected with the thrust ring.
The telescopic conveying device is a telescopic belt conveyor.
The invention has the following advantages:
1. The tunnel cross passage are constructed by a fully mechanical method, and the jacking frame
provided on the support platform at the launch end bottom provides jacking reaction. The force exerted on
the jacking frame is distributed to the main tunnel segment through the bridge plate, providing sufficient
reaction force support for the tunnel excavation.
2. The bottom portion of the pipe hoisting trolley on the support platform at the bottom of the launch
end adopts a wheel type walking structure, which greatly facilitates rapid transfer operations and realizes
pipe hoisting in a limited space.
3. During the tunneling process, a single tunneling stroke is the width of a pipe. After completing a
stroke, the jacking cylinder is retracted, and the pipe hoisting trolley lifts the pipe to complete the assembly
of a ring of pipes.
4. The invention adopts a continuous muck discharge method creatively, which avoids the
shortcomings of stopping tunneling when muck bucket is used for muck discharge, reduces the muck discharge time, and further shortens the construction period.
5. The invention can realize automatic mechanical excavation, tunnel excavation under the protection
of shield, synchronous tunnel lining using prefabricated pipes, and the cross passage are formed at one
time, greatly improving construction efficiency and safety.
6. The pipe hoisting trolley and back-up adopt Tire-type structure. The support platform at the bottom
of the launch end is easy to disassemble and assemble, which can realize the rapid transfer and circular
construction of multiple cross passages.
7. In addition, the construction with the open type tunnel boring machine has a lower overall
construction cost compared to the earth pressure balanced type or slurry pressure balanced type tunneling
boring machines, thereby having a higher promotion and application value.
In order to describe the embodiments of the present invention or the technical solutions in the prior
art more explicitly, the following will briefly explain the drawings that need to be used in the description of
the embodiments or the prior art. Obviously, the drawings in the following description are only some
embodiments of the invention, for other of ordinary skill in the art, other drawings can be obtained based
on these drawings without creative work.
FIG.1 is a schematic diagram of the overall structure of the present invention.
FIG.2 is a schematic diagram of the construction of the present invention.
FIG.3 is a schematic diagram of the structure of the pipe hoisting trolley of the present invention.
FIG.4is a schematic diagram of the structure of the open type main machine of the present invention.
In the figures, 1-pipe transportation device, 2-pipe, 3-pipe hoisting trolley, 4-main machine, 5-operator
cabinet, 6-hydraulic system, 7-fluid system, 8-back-up gantry, 9-support platform, 10-thrust cylinder
assembly, 11-jacking frame, 12-thrust ring, 13-telescopic conveying device, 14-bridge plate, 301-crane, 302
travelling beam, 303-support mechanism, 304-leg, 305-traveling wheel, 401-retaining plate device, 402
breasting plate device, 403-excavation device, 404-front shield, 405-middle shield, 406-muck conveying
device, 407-tail shield, 408-breakthrough cylinder, 409-articulation cylinder.
The technical solutions in the embodiments of the present invention will be described clearly and
completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part rather than all of embodiments. All embodiments obtained by those of ordinary skill in the art
without creative work based on the embodiments herein shall fall within the scope of protection of the present invention.
As shown in FIGS. 1 and 2, an open type rectangular tunnel boring machine for cross passage,
comprising a pipe transportation device 1, a pipe hoisting trolley 3, a main machine 4, a back-up system, a
reaction support system, a pipe thrust system, and a telescopic conveying device. The pipe hoisting trolley
3 is straddled on the reaction support system. The pipe transportation device 1 and the back-up system are
located on both sides of the pipe hoisting trolley 3, respectively. The pipe transportation device adopts the
pipe transportation vehicle, and the pipe transportation vehicle and the pipe hoisting trolley 3 operate
synergically, to transfer the pipe to the pipe thrust system. The pipe thrust system is located on the
reaction support system, and based on the reaction force of the reaction support system, to push the pipe
2 and the main machine 4 to advance. The telescopic conveying device is arranged on the pipe 2 and
between the main machine 4 and the reaction support system to transport the mucks to the rear end.
Preferably, the reaction support system comprises a support platform 9, a jacking frame 11 and a
bridge plate 14, and the pipe thrust system comprises a thrust cylinder assembly 10 and a thrust ring 12.
The support platform 9 is arranged on the segment of the main tunnel. The jacking frame 11, the thrust
cylinder assembly 10 and the thrust ring 12 are all located on the support platform 9 at the bottom of the
launch end, both the jacking framell and the thrust cylinder assembly 1 are connected and fixed together
with the support platform 9, the thrust ring 12 is connected and fixed with one end of the thrust cylinder
assembly 10, and the jacking frame 11is connected and fixed with the other end of the thrust cylinder
assembly 10. The thrust cylinder assembly 10 pushes main machine 4 and prefabricated pipe 2 to move
forward through the thrust ring 12, providing the jacking force for the pipe and main machine to tunnel
forward.
Preferably, the front end of the pipe 2 is provided with a convex portion, the thrust ring 12 of the pipe
thrust system is provided with a convex portion, and the rear end of the pipe 2 is provided with a groove
matching with the convex portion, to facilitate the alignment between the front and rear pipes and the
fixed ring. During the construction, when the main machine moves forward to reach the width of a ring of
pipe, the thrust cylinder assembly retracts, the pipe hoisting trolley 3 lifts the pipe 2 to the installation
position, to complete the installation of the pipe, and then starts the advancement of the pipe to enter the
next working cycle until the cross passage are connected.
Preferably, the bridge plate 14 is located between the jacking frame 11 and the main tunnel segment,
and is a force transmission mechanism between the jacking frame and the main tunnel segment, such that the reaction force on the jacking frame is evenly distributed to the main tunnel segment.
Preferably, the back-up system comprises a operator cabinet 5, a hydraulic system 6, a fluid system7
and back-up gantry 8. The operator cabinet 5, the hydraulic system 6 and the fluid system7 are all arranged
on the back-up gantry 8. The operator cabinet 5 is equipped with electrical systems, and all systems jointly
provide electricity, gas, water, hydraulic power, anti-friction, and grouting media for the open type main
machine during construction.
Preferably, as shown in FIG. 3, the pipe hoisting trolley 3 comprises a crane 301, a travelling beam 302,
a support mechanism 303, a leg 304 and a traveling wheel 305. The crane 301 is arranged on the travelling
beam 302 to lift the pipe on the pipe transportation vehicle to the pipe thrust system. The travelling beam
302 is connected with the support mechanism 303. The support mechanism 303 is provided with telescopic
legs 304. The support mechanism303 is connected with the legs 304 through the telescopic cylinder, and the support mechanism 303 is provided with a rolling traveling wheel 305. The legs 304 are capable of
moving telescopically under the action of the oil cylinder. Before the construction of the cross passage, the
legs 304 are in a fully retracted state and are not in touch with the ground. The traveling wheel 305 is in
contact with the ground and supports the entire pipe hoisting trolley 3, and after the pipe hoisting trolley 3
travels to the construction position of the cross passage, the legs 304 are fully extended and touch the
ground. At this time, traveling wheel 305 is no longer in contact with the ground, and the entire pipe
hoisting trolley 3 is supported by the legs 304 to complete the lifting task of the prefabricated pipe.
Preferably, as shown in FIG. 4, the main machine 4 is an open type rectangular section main machine,
comprising a shield structure, an excavation device 403 and a muck conveying device 406, and the shield
structure comprises a front shield 404, a middle shield 405 and a tail shield 407. The front shield 404 is
tightly connected with the middle shield 405, the middle shield 405 is connected with the tail shield 407
through the articulation cylinder 409, both the front shield 404 and the middle shield 405 are divided into
upper and lower halves that are tightly connected. The upper part of the front shield 404 is provided with
breasting plate device 401 and a retaining plate device 402 to stabilize the excavation surface. Drag bits are
installed on both sides of the front shield 404 and the retaining plate device 402 to cut the end face of the
tunnel. The excavation device 403 is connected and fixed with the middle shield 405, and the excavation
device 403 can move up and down, and left and right to realize the excavation of the cross passage of the
rectangular section. The excavated soil by excavation device 403 is transferred to the telescopic conveying
device 13 through the muck conveying device 406. The muck conveying device is a scraper conveyor or a
belt conveyor. The telescopic conveying device is a telescopic belt conveyor. The muck conveying device and the telescopic conveying device work together, to transfer the mucks out of the whole cross passage. A breakthrough cylinder 408 is provided on the tail shield 407. After the cross passage are connected, the breakthrough cylinder 408 pushes the main machine to move forward to separate it from the pipe of the first ring and complete the receiving of the main machine, and then transfers to start the construction of the next cross passage.
The foregoing descriptions are only the preferred embodiments of the present invention and are not
intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc.
made within the spirit and principle of the present invention shall fall within the scope of protection of the
present invention.
Claims (10)
1. A tunnel boring machine for cross passage, comprising a pipe hoisting trolley (3), wherein one side of the
pipe hoisting trolley (3) is provided with a pipe transportation device (1), the other side of the pipe hoisting trolley (3) is provided with a back-up system, the pipe hoisting trolley (3) is straddled on a reaction support
system, and the reaction support system is provided with a pipe thrust system, and the pipe thrust system propels a pipe (2), and the pipe (2) acts on a main machine (4), and a telescopic conveying device (13) is
provided between the pipe thrust system and the main machine (4).
2. The tunnel boring machine for cross passage according to claim 1, wherein the pipe hoisting trolley (3)
comprises a travelling beam (302), a crane (301) is provided on the travelling beam (302), the travelling
beam (302) is connected with a support mechanism (303), and the support mechanism (303) is provided
with telescopic legs (304), and the support mechanism (303) is provided with a traveling wheel (305).
3. The tunnel boring machine for cross passage according to claim 1, wherein the main machine (4) is an
open type main machine (4).
4. The tunnel boring machine for cross passage according to claim 1, wherein the main machine (4) is in a
rectangular section.
5. The tunnel boring machine for cross passage according to claim 1, 3 or 4, wherein the main machine (4)
comprises a shield structure, and inside the shield structure is provided with an excavation device (403) at
the front end and a muck conveying device (406) at the back end, and the rear end of the muck conveying
device (406) is provided with a telescopic conveying device (13).
6. The tunnel boring machine for cross passage according to claim 1, wherein the reaction support system
comprises a support platform (9), the support platform (9) is provided with a jacking frame (11) and a pipe
thrust system, and the jacking frame (11) is connected with the pipe thrust system
7. The tunnel boring machine for cross passage according to claim 1 or 6, wherein the pipe thrust system
comprises a thrust cylinder assembly (10), one end of the thrust cylinder assembly (10) is connected with
the reaction support system, and the other end of the thrust cylinder assembly(10) is connected with the
thrust ring (12).
8. The tunnel boring machine for cross passage according to claim 7, wherein a bridge plate (14) is provided
between the jacking frame (11) and the main tunnel segment.
9. The tunnel boring machine for cross passage according to claim 5, wherein the shield structure
comprises a front shield (404), a middle shield (405) and a tail shield (407), the front shield (404) is fixedly connected with the middle shield (405), and the middle shield (405) is connected with the tail shield(407)
through an articulation cylinder (409).
10. The tunnel boring machine for cross passage according to claim 1, wherein the telescopic
conveying device (13) is a telescopic belt conveyor.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773443 | 2019-08-21 | ||
| CN201910926327.4 | 2019-09-27 | ||
| CN201910926327.4A CN110593884B (en) | 2019-08-21 | 2019-09-27 | Connecting channel tunneling machine |
| PCT/CN2020/076625 WO2021056959A1 (en) | 2019-08-21 | 2020-02-25 | Communication tunnel boring machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2020351946A1 true AU2020351946A1 (en) | 2021-05-27 |
| AU2020351946B2 AU2020351946B2 (en) | 2023-01-05 |
Family
ID=68864354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020351946A Active AU2020351946B2 (en) | 2019-08-21 | 2020-02-25 | Communication tunnel boring machine |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110593884B (en) |
| AU (1) | AU2020351946B2 (en) |
| WO (1) | WO2021056959A1 (en) |
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| CN109339817B (en) * | 2018-08-30 | 2020-07-03 | 上海隧道工程有限公司 | Cutting control method for mechanical method communication channel curved surface pipe piece |
| CN109869159B (en) * | 2019-03-29 | 2020-11-10 | 中山大学 | Shield construction method of communication channel |
| CN110593884B (en) * | 2019-08-21 | 2020-11-27 | 中铁工程装备集团有限公司 | Connecting channel tunneling machine |
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2019
- 2019-09-27 CN CN201910926327.4A patent/CN110593884B/en active Active
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2020
- 2020-02-25 WO PCT/CN2020/076625 patent/WO2021056959A1/en active Application Filing
- 2020-02-25 AU AU2020351946A patent/AU2020351946B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110593884B (en) | 2020-11-27 |
| AU2020351946B2 (en) | 2023-01-05 |
| WO2021056959A1 (en) | 2021-04-01 |
| CN110593884A (en) | 2019-12-20 |
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