CN110700838A - Vertical shaft construction method and system from bottom to top - Google Patents
Vertical shaft construction method and system from bottom to top Download PDFInfo
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- CN110700838A CN110700838A CN201911191744.5A CN201911191744A CN110700838A CN 110700838 A CN110700838 A CN 110700838A CN 201911191744 A CN201911191744 A CN 201911191744A CN 110700838 A CN110700838 A CN 110700838A
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- 238000010276 construction Methods 0.000 title claims abstract description 52
- 230000005641 tunneling Effects 0.000 claims abstract description 116
- 230000008093 supporting effect Effects 0.000 claims abstract description 48
- 239000002893 slag Substances 0.000 claims description 62
- 238000007789 sealing Methods 0.000 claims description 22
- 239000002689 soil Substances 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000004519 grease Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 13
- 238000009412 basement excavation Methods 0.000 abstract description 9
- 230000001976 improved effect Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000003818 cinder Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D3/00—Raising shafts, i.e. working upwards from the bottom
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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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The application discloses a shaft construction method from bottom to top, which comprises the steps that a support frame is driven to drive a portal supporting device to press upwards to a tunnel to be excavated so as to support the tunnel to be excavated; mounting the clamping device to the driving support frame, and mounting the tunneling device with the driving propelling frame mounted at the bottom into the portal support device; driving the propulsion frame to propel the tunneling device to tunnel upwards until the tunneling device excavates to a preset length, and then stopping driving the propulsion frame to retreat to an initial position after the clamping device clamps the tunneling device; and driving the propulsion frame to propel the new pipe joint and the tunneling device to upwards continue tunneling until the new pipe joint and the tunneling device are excavated to a preset length, stopping tunneling, driving the propulsion frame to clamp the new pipe joint by the clamping device and retreat to the initial position, and repeating the step until the whole vertical shaft is excavated. When the shaft is constructed, manual excavation is not needed, a supporting device is not needed to be additionally arranged, and the construction process is simpler, so that the construction efficiency of the shaft is improved. The invention further provides a vertical shaft construction system from bottom to top.
Description
Technical Field
The invention relates to the field of vertical shaft construction, in particular to a vertical shaft construction method and a vertical shaft construction system from bottom to top.
Background
With the continuous advance of urbanization, supporting projects such as urban traffic, public facilities and underground comprehensive pipe galleries need to be additionally arranged to meet the high-speed development requirements of cities, and at present, wire outlet wells of the underground comprehensive pipe galleries, ventilation openings of subway tunnels and the like cannot be separated from vertical wells, so that the improvement of vertical well construction is particularly necessary.
However, the existing vertical shaft construction usually adopts manual vertical shaft excavation from top to bottom, and then combines a mine supporting mode to stably excavate a well wall, so that the related procedures are more, the construction process is more complicated, and the vertical shaft construction efficiency is relatively low.
Disclosure of Invention
In view of this, the present invention provides a vertical shaft construction method and system from bottom to top, which is beneficial to improving the construction efficiency of the vertical shaft.
The specific scheme is as follows:
the invention provides a vertical shaft construction method from bottom to top, which comprises the following steps:
the driving support frame drives the portal support device installed at the top of the driving support frame to press upwards towards the tunnel to be excavated along the vertical direction so as to support the tunnel to be excavated;
mounting a clamping device to the driving support frame, and mounting a tunneling device with a driving propelling frame mounted at the bottom into the portal support device;
the driving propulsion frame propels the tunneling device to tunnel upwards along the vertical direction until the tunneling device excavates to a preset length, and then stops tunneling;
and the driving propulsion frame propels the placed new pipe joints and the tunneling device to upwards continue tunneling along the vertical direction until the new pipe joints and the tunneling device are excavated to the preset length, the driving propulsion frame retreats to the initial position after clamping the new pipe joints by the clamping device, and the step is repeated until the whole vertical shaft is excavated.
Preferably, before the mounting the clamping device to the driving support frame, the method further comprises:
and mounting at least two circles of tail sealing brushes abutting against the peripheral surface of the tunneling device to the tunnel portal supporting device, and injecting sealing grease between any two adjacent circles of tail sealing brushes.
Preferably, the tunneling apparatus further comprises, while the driving propulsion frame propels the tunneling apparatus to tunnel upward in the vertical direction:
and conveying the slag soil excavated by the tunnel excavating device to a slag receiving hopper fixedly arranged on the driving propulsion frame by using a slag discharging and conveying device arranged at the tail part of the tunnel excavating device, and transferring the slag soil by using a slag car below the slag receiving hopper.
Preferably, before the driving support frame drives the tunnel portal supporting device mounted on the top thereof to press upward in a vertical direction toward the tunnel to be excavated to support the tunnel to be excavated, the driving support frame further comprises:
carrying out anchor rod supporting on the tunnel to be excavated;
and moving the driving support frame with the top provided with the portal support device to the bottom of the tunnel to be excavated.
Preferably, after excavating the whole shaft, the method further comprises:
disassembling and transferring the tunneling device;
supporting and reinforcing the pipe joints in the shaft;
and removing the portal supporting device.
The invention also provides a bottom-up shaft construction system applying the bottom-up shaft construction method as described in any one of the above, comprising:
the tunnel tunneling device is used for tunneling a tunnel;
the tunnel portal supporting device is used for supporting a tunnel to be excavated and is provided with a central cavity for accommodating the tunneling device;
the driving support frame is used for driving the portal support device arranged at the top of the driving support frame to upwards press the tunnel to be excavated along the vertical direction;
a clamping device for mounting to the drive support frame to clamp the tunnelling device or new pipe section after the tunnelling device has tunneled to a preset length;
and the driving propulsion frame is used for propelling the tunneling device to continue tunneling upwards along the vertical direction, and when the tunneling device is clamped and retreated to the initial position, the driving propulsion frame propels the new pipe joint to press the tunneling device so as to enable the tunneling device and the new pipe joint to synchronously move upwards.
Preferably, the method further comprises the following steps:
and at least two circles of tail sealing brushes which are arranged in the central cavity and are abutted against the peripheral surface of the tunneling device, and sealing grease is injected between any two adjacent circles of tail sealing brushes.
Preferably, the method further comprises the following steps:
the slag discharging and conveying device is fixedly arranged at the bottom of the tunneling device and used for conveying the slag excavated by the tunneling device;
the slag receiving hopper is fixedly arranged on the driving propulsion frame and used for receiving the slag soil discharged by the slag discharging and conveying device;
and the slag car is arranged below the slag receiving hopper and used for transferring the slag discharged by the slag receiving hopper.
Preferably, the clamping device comprises:
a first clamp block and a second clamp block which are symmetrically arranged relative to the tunnelling device,
the first driving piece and the second driving piece are used for driving the first clamping block and the second clamping block to move in the vertical direction respectively;
the first clamping block is provided with a first inclined plane matched with the first inclined guide plate, and the second clamping block is provided with a second inclined plane matched with the second inclined guide plate.
Preferably, the first clamping block and the second clamping block are provided with anti-slip pads on the sides close to the tunneling device and the tunneling device respectively.
Compared with the background art, the vertical shaft construction method from bottom to top provided by the invention comprises the steps that firstly, the support frame is driven to drive the portal support device installed at the top of the support frame to press upwards towards a tunnel to be excavated along the vertical direction so as to support the tunnel to be excavated; then, mounting a clamping device to the driving support frame, and mounting a tunneling device with a driving propelling frame mounted at the bottom into the portal support device; then, the driving propulsion frame propels the tunneling device to tunnel upwards along the vertical direction until the tunneling device excavates to a preset length, and then stops tunneling; and then, the driving propulsion frame propels the placed new pipe sections and the tunneling device to continue tunneling upwards along the vertical direction until the new pipe sections and the tunneling device are excavated to the preset length, the driving propulsion frame retreats to the initial position after the clamping device clamps the new pipe sections, and the step is repeated until the whole vertical shaft is excavated.
Therefore, in the construction process of the vertical shaft, manual excavation is not needed, a supporting device is not needed to be independently added, and the construction process is simple, so that the construction method of the vertical shaft from bottom to top provided by the invention is beneficial to improving the construction efficiency of the vertical shaft.
The invention also provides a vertical shaft construction system from bottom to top, which has the same beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flow chart of a vertical shaft construction method from bottom to top according to an embodiment of the present invention;
fig. 2 is a view illustrating an initial installation state of a shaft construction system according to an embodiment of the present invention;
fig. 3 is a working state diagram of a shaft construction system according to an embodiment of the present invention.
The reference numbers are as follows:
the tunnel boring device comprises a tunnel boring device 1, a tunnel portal supporting device 2, a driving propulsion frame 3, a clamping device 4, a driving supporting frame 5, a tail sealing brush 6, a slag discharging and conveying device 7, a slag receiving hopper 8, a slag car 9, a mud blocking gate 10 and a pipe section 11;
a first clamping block 41, a first driving member 42, a first inclined guide plate 43, a second clamping block 44, a second driving member 45 and a second inclined guide plate 46.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a flow chart of a vertical shaft construction method from bottom to top according to an embodiment of the present invention.
The embodiment of the invention discloses a vertical shaft construction method from bottom to top, which comprises the following steps:
s1, driving the supporting frame to drive the portal supporting device installed at the top of the supporting frame to press upwards towards the tunnel to be excavated along the vertical direction so as to support the tunnel to be excavated;
in order to improve the safety, before the support frame is driven to drive the portal supporting device, firstly, an anchor rod support is carried out on the tunnel to be excavated so as to reinforce the tunnel to be excavated and prevent soil or rock mass from collapsing at the bottom of the tunnel to be excavated. After the anchor bolt support is completed, the tunnel portal supporting device is fixed to the top of the driving supporting frame through the connecting bolt, so that the driving supporting frame drives the tunnel portal supporting device to press towards or keep away from the tunnel to be excavated along the vertical direction. It should be noted that, in general, a tunnel to be excavated is excavated from the top of an excavated transverse tunnel, and when a pipe joint at the top of the excavated transverse tunnel is difficult to be broken by using a tunneling device, the pipe joint at the top of the transverse tunnel can be broken by using a water drill; in addition, in order to prevent the broken pipe joints from falling to hurt people, a portal gate plate can be installed at the top of the portal support device so as to safely clear the broken pipe joints.
In this embodiment, the driving support frame preferably includes at least two hydraulic cylinders arranged in parallel in the vertical direction, and a piston rod of each hydraulic cylinder is detachably connected to the hole door supporting device, but is not limited thereto.
And after the tunnel portal supporting device is installed, moving the driving support frame with the tunnel portal supporting device installed at the top to the bottom of the tunnel to be excavated. Preferably, the bottom of drive support frame is equipped with running gear to reduce drive support frame and entrance to a cave strutting arrangement's the transportation degree of difficulty. The running assembly may be of the wheeled, tracked, etc. type and is not particularly limited herein. For further promoting the security, the running gear is equipped with locking Assembly to locking Assembly can inject the running gear and remove at the propulsion in-process of drive support frame, prevents that drive support frame from rocking, in order to guarantee tunnelling precision and security.
S2, mounting the clamping device to the driving support frame, and mounting the tunneling device with the driving propelling frame mounted at the bottom into the tunnel portal support device;
the clamping device is arranged on the driving support frame so as to clamp or loosen the tunneling device or the new pipe joint along the direction vertical to the central axis of the tunnel to be excavated, the tunneling device or the pipe joint is prevented from falling under the action of self gravity, and the safety is naturally improved.
In order to prevent soil or rock from entering the tunneling device, at least two circles of tail sealing brushes abutting against the peripheral surface of the tunneling device are installed on the tunnel portal supporting device before the clamping device is installed on the driving supporting frame, and sealing grease is injected between any two adjacent circles of tail sealing brushes, so that the rock or soil is prevented from entering key components such as bearings, and the tunneling device is guaranteed to operate stably and reliably.
And after the tail sealing brush is installed, installing the tunneling device into the portal supporting device. Before the tunnel boring device is installed, the tunnel boring device is installed on the driving propulsion frame, the driving propulsion frame provided with the tunnel boring device is moved to the position below the tunnel portal supporting device, then the driving propulsion frame is started, and the driving propulsion frame drives the tunnel boring device to drill into the tunnel portal supporting device to prepare for subsequent tunnel boring.
S3, driving the propulsion frame to propel the tunneling device to tunnel upwards along the vertical direction until the tunneling device excavates to a preset length, and then stopping driving the propulsion frame to retreat to the initial position after the clamping device clamps the tunneling device;
and starting the tunneling device, then starting the driving propulsion frame, driving the propulsion frame to upwards push the tunneling device rotating at a high speed along the vertical direction, and cutting a rock body or a soil body by the tunneling device so as to realize the excavation of the tunnel. And after the tunneling device excavates to a preset length, driving the propelling frame to stop pushing the tunneling device to move upwards. It should be noted that the preset length is equal to or greater than the length of the installed pipe joint. After the driving propulsion frame stops propelling the tunneling device, the clamping device immediately clamps the tunneling device to prevent the tunneling device from returning, and then the driving propulsion frame is driven to return to the initial position.
When the driving propulsion frame propels the tunneling device to tunnel upwards along the vertical direction, the slag soil excavated by the tunneling device is conveyed to the slag receiving hopper fixedly arranged on the driving propulsion frame by the slag removing and conveying device arranged at the tail part of the tunneling device, and the slag receiving hopper is a conical slag receiving hopper so as to collect the slag soil discharged by the slag removing and conveying device, thereby conveniently utilizing the slag car below the slag receiving hopper to transport the slag soil and preventing the slag soil from scattering.
S4, driving the propulsion frame to propel the placed new pipe joint and the tunneling device to continue tunneling upwards along the vertical direction until the new pipe joint and the tunneling device reach a preset length, driving the propulsion frame to clamp the new pipe joint by the clamping device and retreat to the initial position, and repeating the steps until the whole vertical shaft is excavated;
and placing a new pipe joint between the driving propulsion frame and the tunneling device, then starting the driving propulsion frame, driving the driving propulsion frame to upwards propel the new pipe joint along the vertical direction to press the new pipe joint to the tail part of the tunneling machine, starting the tunneling device again, driving the propulsion frame to continuously propel the new pipe joint and the tunneling device rotating at a high speed, enabling the new pipe joint to continuously excavate the tunnel along the vertical direction along with the tunneling device until the tunneling device excavates to a preset length, and driving the propulsion frame to stop pushing the tunneling device to upwards move. And after the driving propulsion frame stops propelling the tunneling device, immediately clamping the new pipe joint by the clamping device to prevent the tunneling device and the new pipe joint from returning, then driving the propulsion frame to return to the initial position, repeating the step, and circulating until the whole vertical shaft is excavated.
After the entire shaft has been excavated, the tunnelling unit is removed and transferred in order to withdraw it from the construction site. After the construction of the vertical shaft is completed, anchor rod reinforcement or grouting reinforcement is carried out on the laid new pipe joint, and meanwhile, a support frame for supporting the new pipe joint is additionally arranged at the bottom of the vertical shaft, so that the stability of the vertical shaft is favorably maintained, and the subsequent tunnel door support device and the driving support frame are conveniently detached.
In conclusion, in the construction process of the vertical shaft, manual excavation is not needed, a supporting device is not needed to be independently added, and the construction process is simple, so that the construction method of the vertical shaft from bottom to top provided by the invention is beneficial to improving the construction efficiency of the vertical shaft.
Referring to fig. 2 and 3, fig. 2 is a diagram illustrating an initial installation state of a shaft construction system according to an embodiment of the present invention; fig. 3 is a working state diagram of a shaft construction system according to an embodiment of the present invention.
The invention also provides a vertical shaft construction system from bottom to top, which comprises a tunneling device 1, a tunnel door supporting device 2, a driving propulsion frame 3, a clamping device 4 and a driving supporting frame 5.
The tunnelling device 1 is used for tunnelling a tunnel and the tunnelling device 1 may be a pipe jacking machine, but is not limited thereto. In this particular embodiment, the tunnel boring machine includes a cutterhead assembly, an outer sleeve, an inner sleeve, and a stirring bar. The cutter head assembly is fixedly arranged at the front end of the inner sleeve, and a power assembly used for driving the cutter head assembly to rotate is arranged in the inner sleeve so that the power assembly drives the cutter head assembly to excavate the tunnel. The inner sleeve and the outer sleeve are detachably connected by adopting a connecting screw. The outer diameter of the inner sleeve is less than the inner diameter of the new pipe section 11 and the cutterhead assembly may be a collapsible cutterhead for removing the cutterhead assembly, the power assembly and the inner sleeve from the outer sleeve after completion of a shaft excavation. The outer sleeve can be used for supporting the wall of a well of excavation, and the outer barrel can also keep apart the electric elements of installing in the inner sleeve and the wall of a well of excavation. The stirring rod can stir the dregs cut by the cutter head component, so that the flow plasticity of the dregs is improved, and the quick tree hole dregs are convenient to use. Of course, the structure of the tunnelling device 1 is not limited thereto.
The portal support 2 serves to support the tunnel to be excavated, the portal support 2 having a central cavity for accommodating the tunnelling device 1.
The driving propulsion frame 3 is mounted at the top with the portal support 2 to support the portal support 2 in the vertical direction. The structure of the drive carrier 3 can be referred to the above.
The gripping device 4 is mounted to the drive propulsion carriage 3 so as to grip the tunnelling device 1 or a new pipe section 11 after the tunnelling device 1 has been tunnelled to a predetermined length. In this particular embodiment, the clamping device 4 comprises a first clamping block 41, a second clamping block 44, a first drive element 42, a second drive element 45, a first inclined guide plate 43 and a second inclined guide plate 46.
The first clamping blocks 41 and the second clamping blocks 44 are symmetrically arranged relative to the tunneling device 1, one side of the first clamping block 41 close to the tunneling device 1 and one side of the second clamping block 44 close to the tunneling device 1 are both matched with the outer peripheral surface of the outer sleeve of the tunneling device 1 or the outer peripheral surface of the new pipe joint 11, and the two side surfaces can be planes, arc surfaces and the like, and are not particularly limited herein, and are particularly adjusted appropriately according to the outer peripheral surface of the outer sleeve of the tunneling device 1 or the outer peripheral surface of the new pipe joint 11. Of course, the number of the clamping blocks included in the clamping device 4 is not limited to two, and is specifically set according to the load to be borne.
The first driving member 42 is used for driving the first clamping block 41 to move in the vertical direction, and the second driving member 45 is used for driving the second clamping block 44 to move in the vertical direction. The first drive member 42 and the second drive member 45 are each preferably, but not limited to, hydraulic cylinders.
The inclined surface of the first inclined guide plate 43 abuts against the first clamping block 41, and accordingly, the first clamping block 41 has a first inclined surface matched with the first inclined guide plate 43; likewise, the inclined surface of the second inclined guide plate 46 abuts against the second clamping block 44, and accordingly, the second clamping block 44 has a second inclined surface that cooperates with the second inclined guide plate 46. When the first driving part 42 drives the first clamping block 41 to move downwards along the first inclined guide plate 43 and the second driving part 45 drives the second clamping block 44 to move downwards along the second inclined guide plate 46, the first inclined guide plate 43 guides the first inclined surface to move, meanwhile, the second inclined guide plate 46 guides the second inclined surface to move, the clamping surfaces of the first clamping block 41 and the second clamping block 44 are gathered towards the center of the tunneling device 1, and the transverse distance between the two is shortened until the tunneling device 1 or a new pipe section 11 is clamped; conversely, when the first and second blocks 41, 44 are moved upwardly, the clamping surfaces of the two move away from each other, releasing the tunnelling device 1 or the pipe section 11. In addition, when the tunneling device 1 or the pipe joint 11 retreats due to excessive gravity, the tunneling device 1 or the new pipe joint 11 drives the first clamping block 41 and the second clamping block 44 to move downwards, the transverse distance between the clamping surface of the first clamping block 41 and the clamping surface of the second clamping block 44 is further shortened, the clamping force of the first clamping block 41 and the second clamping block 44 is increased, the clamping device 4 is favorable for further clamping the tunneling device 1 or the new pipe joint 11, the tunneling device 1 or the new pipe joint 11 is effectively prevented from retreating, and the reliability is favorably improved.
To further improve the reliability, the first clamp blocks 41 and the second clamp blocks 44 are provided with anti-slip pads on the sides adjacent to the tunnelling device 1 and the tunnelling device 1, respectively, in order to increase the friction between the clamp 4 and the tunnelling device 1 or the pipe section 11 and further prevent the tunnelling device 1 or the pipe section 11 from backing up, which is obviously improved. The non-slip mat may be a rubber mat, a nylon mat, etc., and is not particularly limited herein.
And the driving support frame 5 is used for propelling the tunneling device 1 to continue tunneling upwards along the vertical direction, and when the tunneling device 1 is clamped and retreated to the initial position so as to propel the new pipe joint 11 to press the tunneling device 1, so that the tunneling device 1 and the new pipe joint 11 synchronously move upwards. The drive support frame 5 preferably includes at least two hydraulic uprights, but is not limited thereto.
In order to further improve the reliability, the tunnel boring device further comprises at least two rings of tail sealing brushes 6, the tail sealing brushes 6 are arranged in a central cavity of the tunnel portal supporting device 2, and each ring of tail sealing brushes 6 are abutted against the outer peripheral surface of the tunnel boring device 1, so that muck is initially prevented from falling into a gap between the clamping device 4 and the outer cylinder body; furthermore, sealing grease is injected between any two adjacent rings of tail sealing brushes 6, so that the muck is further effectively prevented from falling into a gap between the clamping device 4 and the outer cylinder body, and the tunneling device 1 is ensured to continuously and reliably operate.
In order to conveniently convey the dregs, the invention also comprises a dreg discharging and conveying device 7, a dreg receiving hopper 8 and a dreg vehicle 9. Wherein, the slag discharging and conveying device 7 is fixedly arranged at the bottom of the tunneling device 1 so as to convey the slag excavated by the tunneling device 1. Preferably, an integrated structure is adopted between the tunneling device 1 and the slag discharging and conveying device 7, so as to ensure that the slag discharging and conveying device 7 stably discharges slag soil. Of course, the tunneling device 1 and the slag discharge conveying device 7 can also adopt a split structure, and the purpose of the invention is not affected. After the tunnel boring device 1 excavates a distance, in order to compensate for the shortage of the length of the slag discharge conveyor 7, a connection joint is provided at the tail of the slag discharge conveyor 7, so that the length of the slag discharge conveyor 7 is appropriately increased according to the length of the excavated tunnel. The reject conveyor 7 may be a screw conveyor, but the type is not limited thereto.
The slag receiving hopper 8 is fixedly arranged at the bottom of the driving support frame 5 and used for receiving the slag discharged by the slag discharging and conveying device 7. Preferably, the slag receiving hopper 8 is a tapered slag receiving hopper with a large diameter end facing the tunneling device 1, which effectively prevents the slag soil from leaking out and ensures that the slag soil can sufficiently fall into the slag receiving hopper 8, but the structure of the slag receiving hopper 8 is not limited thereto. The slag car 9 is arranged below the slag receiving hopper 8 and used for transferring slag discharged by the slag receiving hopper 8.
For promoting the security, arrange the afterbody of sediment conveyor 7 and be equipped with fender mud gate 10, arrange the row's cinder notch that sediment conveyor 7 afterbody was established in order to open and shut through opening and close fender mud gate 10 to utilize fender mud gate 10 shutoff to arrange the cinder notch when shutting down, effectively prevent soil erosion and water loss, guarantee that the excavation face is stable, thereby guarantee that the bottom surface at shaft place is stable, effectively prevent ground subside, the security promotes to some extent naturally.
Therefore, the vertical shaft construction system from bottom to top provided by the invention is also beneficial to improving the construction efficiency of the vertical shaft.
The shaft construction method and system provided by the invention from bottom to top are described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A vertical shaft construction method from bottom to top is characterized by comprising the following steps:
s1, driving the supporting frame to drive the portal supporting device installed at the top of the supporting frame to press upwards towards the tunnel to be excavated along the vertical direction so as to support the tunnel to be excavated;
s2, mounting a clamping device to the driving support frame, and mounting a tunneling device with a driving propelling frame mounted at the bottom into the portal support device;
s3, the driving propulsion frame propels the tunneling device to tunnel upwards along the vertical direction until the tunneling device excavates to a preset length, and then stops tunneling, and the driving propulsion frame retracts to the initial position after the clamping device clamps the tunneling device;
and S4, the driving propulsion frame drives the placed new pipe joint and the tunneling device to continue tunneling upwards along the vertical direction until the new pipe joint is excavated to the preset length, the driving propulsion frame retreats to the initial position after clamping the new pipe joint by the clamping device, and the step S4 is repeated until the whole vertical shaft is excavated.
2. The bottom-up shaft construction method according to claim 1, further comprising, before the installing the clamping device to the driving support frame:
and mounting at least two circles of tail sealing brushes abutting against the peripheral surface of the tunneling device to the tunnel portal supporting device, and injecting sealing grease between any two adjacent circles of tail sealing brushes.
3. The bottom-up shaft construction method according to claim 1, further comprising, while the driving propulsion carriage propels the tunneling apparatus to tunnel upward in a vertical direction:
and conveying the slag soil excavated by the tunnel excavating device to a slag receiving hopper fixedly arranged on the driving propulsion frame by using a slag discharging and conveying device arranged at the tail part of the tunnel excavating device, and transferring the slag soil by using a slag car below the slag receiving hopper.
4. The bottom-up shaft construction method as claimed in claim 1, further comprising, before the driving support frame drives the door supporting means mounted on the top thereof to be pressed upward in a vertical direction toward the tunnel to be excavated to support the tunnel to be excavated:
carrying out anchor rod supporting on the tunnel to be excavated;
and moving the driving support frame with the top provided with the portal support device to the bottom of the tunnel to be excavated.
5. The bottom-up shaft construction method according to claim 1, further comprising, after the excavating the entire shaft:
disassembling and transferring the tunneling device;
supporting and reinforcing the pipe joints in the shaft;
and removing the portal supporting device.
6. A bottom-up shaft construction system to which the bottom-up shaft construction method according to any one of claims 1 to 5 is applied, comprising:
a tunneling device (1) for tunneling a tunnel;
the tunnel boring device comprises a tunnel portal supporting device (2) used for supporting a tunnel to be excavated, wherein the tunnel portal supporting device (2) is provided with a central cavity used for accommodating the tunnel boring device (1);
the driving propulsion frame (3) is used for driving the portal supporting device (2) arranged at the top of the driving propulsion frame to press upwards towards the tunnel to be excavated along the vertical direction;
a clamping device (4) for mounting to the drive propulsion carriage (3) to clamp the tunnelling device (1) or a new pipe section (11) after the tunnelling device (1) has been tunnelled to a preset length;
and the driving support frame (5) is used for propelling the tunneling device (1) to continue tunneling upwards along the vertical direction, and when the tunneling device (1) is clamped and retreated to the initial position so as to propel the new pipe joint (11) to press towards the tunneling device (1), so that the tunneling device (1) and the new pipe joint (11) synchronously move upwards.
7. A bottom-up shaft construction system according to claim 6, further comprising:
at least two circles of tail sealing brushes (6) are arranged in the central cavity and abut against the peripheral surface of the tunneling device (1), and sealing grease is injected between any two adjacent circles of tail sealing brushes (6).
8. A bottom-up shaft construction system according to claim 7, further comprising:
a slag discharge conveying device (7) fixedly arranged at the bottom of the tunneling device (1) and used for conveying the slag excavated by the tunneling device (1);
a slag receiving hopper (8) fixedly arranged on the driving support frame (5) and used for receiving the slag discharged by the slag discharging and conveying device (7);
and the residue soil vehicle (9) is arranged below the residue receiving hopper (8) and is used for transferring residue soil discharged by the residue receiving hopper (8).
9. Shaft construction system according to claim 7, characterised in that the clamping device (4) comprises:
a first clamping block (41) and a second clamping block (44) arranged symmetrically with respect to the tunnelling device (1),
a first driving member (42) and a second driving member (45) for driving the first clamping block (41) and the second clamping block (44) to move in the vertical direction respectively;
a first inclined guide plate (43) and a second inclined guide plate (46) which respectively abut against the first clamping block (41) and the second clamping block (44) and are used for correspondingly guiding the first clamping block (41) and the second clamping block (44) to be close to or far away from each other so as to correspondingly realize clamping or loosening, wherein the first clamping block (41) is provided with a first inclined surface matched with the first inclined guide plate (43), and the second clamping block (44) is provided with a second inclined surface matched with the second inclined guide plate (46).
10. Shaft construction system according to claim 9, characterised in that the first clamp block (41) and the second clamp block (44) are provided with anti-slip mats on the side adjacent to the tunnelling device (1) and the side adjacent to the tunnelling device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911191744.5A CN110700838A (en) | 2019-11-28 | 2019-11-28 | Vertical shaft construction method and system from bottom to top |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911191744.5A CN110700838A (en) | 2019-11-28 | 2019-11-28 | Vertical shaft construction method and system from bottom to top |
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| CN110700838A true CN110700838A (en) | 2020-01-17 |
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| CN201911191744.5A Pending CN110700838A (en) | 2019-11-28 | 2019-11-28 | Vertical shaft construction method and system from bottom to top |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113216973A (en) * | 2021-04-23 | 2021-08-06 | 中铁工程装备集团有限公司 | From top pushing-type shaft heading equipment down |
| CN114293992A (en) * | 2021-12-27 | 2022-04-08 | 中铁工程装备集团有限公司 | Upward construction vertical shaft equipment and construction method thereof |
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