CN114033423B - Device and method for secondary grouting of shield machine and shield machine - Google Patents
Device and method for secondary grouting of shield machine and shield machine Download PDFInfo
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- CN114033423B CN114033423B CN202111232475.XA CN202111232475A CN114033423B CN 114033423 B CN114033423 B CN 114033423B CN 202111232475 A CN202111232475 A CN 202111232475A CN 114033423 B CN114033423 B CN 114033423B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
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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
- E21D9/06—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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
本发明公开了一种用于盾构机二次注浆的装置、方法及盾构机，解决了现有技术中拼装完成的部分管片顶部需要二次注浆，二次注浆效率低的问题，具有提高二次注浆效率，保证二次注浆质量的有益效果，具体方案如下：一种用于盾构机二次注浆的装置，包括通过盾构机支撑的轨道和能够沿着轨道移动的注浆机构，轨道沿着隧道环向方向布置，注浆机构包括用于向隧道顶部设定范围内管片进行注浆的注浆管，注浆管能够升降以使得注浆管插入管片注浆孔。
The present invention discloses a device, method and shield machine for secondary grouting of a shield machine, which solves the problem in the prior art that the top of a partial segment that has been assembled needs secondary grouting and the secondary grouting efficiency is low, and has the beneficial effects of improving the secondary grouting efficiency and ensuring the quality of secondary grouting. The specific scheme is as follows: A device for secondary grouting of a shield machine comprises a track supported by the shield machine and a grouting mechanism that can move along the track, the track is arranged along the circumferential direction of the tunnel, the grouting mechanism comprises a grouting pipe for grouting segments within a set range on the top of the tunnel, and the grouting pipe can be raised and lowered so that the grouting pipe is inserted into the grouting hole of the segment.
Description
Technical Field
The invention relates to a secondary grouting process in a construction process of a shield machine, in particular to a device and a method for secondary grouting of the shield machine and the shield machine.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The main construction method of the subway section tunnel at present is a shield method, and in order to control stratum settlement deformation during the shield method construction, secondary grouting is usually required to be carried out on the part of the pipe pieces above the 3-5 ring pipe pieces behind the shield machine, namely the top of the tunnel, so as to improve the stability and strength of the arrangement of the pipe pieces at the top of the tunnel.
The existing shield tunneling machine is provided with 3-5 ring pipe slices at the rear part and is positioned above a shield tunneling machine connecting bridge, the connecting bridge of the shield tunneling machine is tightly arranged, the connecting bridge has higher height, so that the space between the connecting bridge and the pipe slices at the top of the connecting bridge is limited, and the inventor finds that in the prior art, constructors specifically carry secondary grouting equipment to enter the space between the top of the connecting bridge and the pipe slices for grouting in order to perform secondary grouting on the pipe slices, because the operation space is limited, the constructors are inconvenient to carry grouting equipment to enter the space, and need to climb a connecting bridge steel frame, so that the construction efficiency of secondary grouting is affected; meanwhile, constructors simply fix grouting equipment, the grouting equipment is unstable, and the quality of secondary grouting is affected; moreover, constructors can not control grouting time accurately by controlling grouting equipment manually, so that the quality of secondary grouting is further affected.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a device for secondary grouting of a shield machine, which can automatically perform secondary grouting operation at a set position without manual climbing and manual grouting by constructors, and effectively improves the efficiency and quality of secondary grouting.
In order to achieve the above object, the present invention is realized by the following technical scheme:
The utility model provides a device for shield constructs quick-witted secondary slip casting, includes the track that supports through the shield constructs the machine and can follow track movement's slip casting mechanism, and the track is arranged along tunnel hoop direction, and slip casting mechanism is including the slip casting pipe that is used for carrying out the slip casting to the section of jurisdiction in the tunnel top settlement scope, and the slip casting pipe can go up and down so that slip casting pipe inserts the section of jurisdiction slip casting hole.
The device, through shield structure machine support track, grouting mechanism can follow orbital motion, grouting mechanism realizes the slip casting through the slip casting pipe that can insert section of jurisdiction slip casting hole from this, need not constructor and has carried grouting equipment climbing and connect the crane span structure, has made things convenient for the slip casting greatly, can improve the efficiency of secondary slip casting correspondingly, and track setting stability is higher for grouting mechanism sets up stable quality that fully guarantees the secondary slip casting.
The device for secondary grouting of the shield machine, wherein the track can move along the longitudinal direction of the tunnel under the drive of the shield machine, but the track can also move relative to the shield machine along the longitudinal direction of the tunnel in order to enable the track to be finely tuned;
the track is supported by a connecting bridge of the shield tunneling machine or by a supporting frame of a trolley of the shield tunneling machine.
The device for secondary grouting of the shield machine is characterized in that the support frame of the shield machine or the shield machine trolley is provided with the clamping groove, the lower surface of the track is provided with the supporting legs, the supporting legs are clamped into the clamping groove, the moving part is connected with the supporting legs to drive the supporting legs to move along the clamping groove, the moving part can be a linear driving mechanism, the moving part is connected with the controller and controlled by the controller.
According to the device for secondary grouting of the shield machine, in order to ensure grouting after the grouting pipe is inserted into the pipe piece grouting hole, the grouting pipe is provided with the control switch, the control switch is connected with the controller, the controller can control the control switch, and the grouting pipe can be turned off after grouting setting time.
The grouting mechanism is connected with the wheels through the support, the wheels are connected with the driving power source, the driving power source is connected with the controller, the controller can control the wheels, the grouting mechanism is driven to move along the track, the grouting mechanism can automatically move, the grouting mechanism is controlled by the controller to move to a set position, and accuracy is guaranteed.
The grouting mechanism further comprises a lifting component, the lifting component is connected with one end of the grouting pipe, the lifting component is connected with the controller, the grouting pipe can be inserted into the pipe piece grouting hole when lifted through the arrangement of the lifting component, the grouting pipe can be separated from the pipe piece grouting hole when lowered, namely, the grouting pipe is retracted, and the grouting mechanism is prevented from interfering with the pipe piece in the moving process.
The device for secondary grouting of the shield machine is characterized in that a grouting pipe joint used for being connected with a grouting pipe is arranged on the side part of the grouting pipe, and cement slurry is supplied to the grouting pipe through the grouting pipe joint;
The device for secondary grouting of the shield tunneling machine is characterized in that the flow meter and the pressure meter are arranged in the grouting pipe and are respectively connected with the controller, the flow meter is arranged for monitoring the flow of grouting pipe grouting slurry into the pipe piece, the pressure meter is used for monitoring the pressure of grouting slurry, and the controller is matched for controlling the control switch, so that grouting quality is fully ensured.
The device for secondary grouting of the shield machine is characterized in that the track is arc-shaped, the track has a set length so as to ensure that the grouting mechanism moves along the track, the track is arranged on the inner side of a segment spliced in an annular mode, a set distance is reserved between the track and the segment, and the grouting mechanism can be accommodated;
The set distance is arranged between the track and the top of the assembled duct piece, and is larger than the height of the grouting mechanism when the grouting mechanism is lowered to the lowest position.
In the device for secondary grouting of the shield machine, the controller is connected to the control panel of the cab of the shield machine for convenience of integral control, and the control of secondary grouting of the shield machine is realized in the cab.
In a second aspect, the present invention also provides a method for secondary grouting of a shield tunneling machine, and the device for secondary grouting of a shield tunneling machine includes the following contents:
After the segment assembly at the rear of the shield tunneling machine is completed, the grouting mechanism moves along the track by a set distance to a segment grouting hole in a set range at the top of the tunnel;
raising the grouting pipe to enable the grouting pipe to be inserted into the pipe piece grouting hole, and enabling the end of the grouting pipe to exceed the outer side face of the pipe piece;
the grouting pipe performs secondary grouting, and after the set flow and/or pressure are reached, the grouting pipe stops grouting and reduces the grouting pipe;
the grouting mechanism continuously moves along the track for a set distance, and performs secondary grouting on the other duct pieces within a set range at the top of the tunnel.
In a third aspect, the invention also provides a shield tunneling machine, which comprises the device for secondary grouting of the shield tunneling machine; the shield machine connecting bridge frame is a connecting bridge steel frame, the top end of the connecting bridge steel frame is provided with a plurality of exposed ends, and the exposed ends of the connecting bridge steel frame are provided with clamping grooves.
The beneficial effects of the invention are as follows:
1) According to the invention, the track is arranged at the connecting bridge of the shield machine, and the grouting mechanism can move along the track, so that grouting is realized by the grouting mechanism through the grouting pipe which can be inserted into the pipe piece grouting hole, a constructor is not required to climb the connecting bridge with grouting equipment, and labor cost is reduced; and the grouting is greatly facilitated, the efficiency of secondary grouting can be correspondingly improved, the grouting mechanism is supported by the track, the stability of the track is higher, and the grouting mechanism is stable in setting and can effectively guarantee the quality of secondary grouting.
2) The invention can realize the unified control of the control switch, the driving power source and the lifting part through the arrangement of the controller, realize the automatic movement of the grouting mechanism, automatically start grouting and stop grouting, and further ensure the efficient grouting; meanwhile, the accurate control of grouting amount and grouting time can be realized, and the quality of secondary grouting is fully ensured.
3) According to the invention, through the arrangement of the flowmeter, the flow rate of grouting liquid injected into the pipe piece by the grouting pipe is monitored, and then the control of the control switch by the controller is matched, so that the flow rate and time of grouting are fully ensured, and the quality of secondary grouting is further ensured; meanwhile, the pressure gauge is used for monitoring the pressure of injected slurry, so that the slurry can smoothly enter the duct piece grouting holes, the controller can monitor the grouting pressure conveniently, and the grouting quality is guaranteed correspondingly.
4) According to the invention, the shield machine is connected with the bridge frame or the shield machine platform trolley supporting rail, so that the internal structural members of the shield machine are fully utilized, the distance between the rail and the assembled duct piece is ensured, the secondary grouting can move along with the movement of the shield machine to realize longitudinal primary movement, the rail can be finely adjusted relative to the tunnel through the arrangement of the moving part, and the adjustment of the grouting pipe to the duct piece grouting hole is facilitated; meanwhile, the stability of the grouting mechanism can be guaranteed by supporting the pipe piece through the shield machine.
5) According to the secondary grouting method, the operation of climbing to the connecting bridge frame manually is not needed, so that the secondary grouting efficiency is effectively improved, the tunnel duct piece is long, and the labor cost is greatly saved; meanwhile, the pressure, flow and time of the secondary grouting can be controlled, and the quality of the secondary grouting is fully ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
Fig. 1 is a schematic diagram of an apparatus for secondary grouting of a shield machine according to one or more embodiments of the present invention at the time of secondary grouting.
Fig. 2 is a schematic diagram of a grouting mechanism in an apparatus for secondary grouting of a shield machine according to one or more embodiments of the present invention.
In the figure: the mutual spacing or dimensions are exaggerated for the purpose of showing the positions of the various parts, and the schematic illustration is only schematic.
Wherein: 1 is a grouting pipe; 2 is a grouting pipe joint (connected with a mortar tank); 3 is a hydraulic cylinder; 4 is a wheel; 5 is a duct piece grouting hole; 6 is a track; 7 is a longitudinal rail; 8 is a segment; 9 is a connecting bridge; and 10 is an electronic valve.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular forms also are intended to include the plural forms unless the present invention clearly dictates otherwise, and furthermore, it should be understood that when the terms "comprise" and/or "include" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
As described in the background art, the problems of large secondary grouting difficulty and low efficiency exist in the prior art, and in order to solve the technical problems, the invention provides a device and a method for secondary grouting of a shield machine and the shield machine.
Example 1
In an exemplary embodiment of the present invention, referring to fig. 1, an apparatus for secondary grouting of a shield machine includes a rail 6 supported by the shield machine and a grouting mechanism capable of moving along the rail, the rail 6 being disposed along a circumferential direction of a tunnel, the rail being disposed inside the tunnel with a set distance between the rail and a top side of the tunnel, the grouting mechanism including a bracket provided with a grouting pipe 1 for grouting a segment 8 within a set range of the top of the tunnel, the grouting pipe 1 being capable of being lifted and lowered so that the grouting pipe 1 is inserted into a segment grouting hole 5.
Further, the track can also be moved along the longitudinal direction of the tunnel; the track is supported by a connecting bridge of the shield machine or by a supporting frame of a trolley of the shield machine.
Specifically, in order to realize that the track realizes the movement of tunnel longitudinal direction for the shield machine, the support frame of the connection bridge or the shield machine trolley of the shield machine sets up the draw-in groove, the track lower surface sets up the landing leg, and the landing leg card is gone into in the draw-in groove, and moving part is connected with the landing leg in order to drive the landing leg and remove along the draw-in groove.
In this embodiment, the moving component may be a linear driving motor, where the linear driving motor is connected to the controller, and the controller controls the moving component.
In order to ensure that grouting is performed after the grouting pipe 1 is inserted into the pipe piece grouting hole 5, the grouting pipe 1 is provided with a control switch, the control switch is connected with a controller, the controller can control the control switch, grouting time of the grouting pipe is ensured, and reasonable control of grouting quality is facilitated.
In this embodiment, the control switch may select the existing electronic valve 10.
It will be appreciated that the grouting pipe 1 is a grouting pipe with a set length, and steel material can be selected as the material.
Further, the lateral part of support sets up a plurality of wheels 4, specifically can be 4 wheels, and 4 wheels divide two rows to set up, and the wheel is connected with the drive power source, and the drive power source is connected with the controller, from this the controller can realize the control to wheel 4 to drive grouting mechanism and remove along track 6, grouting mechanism can realize initiatively removing, and by the position department of controller control grouting mechanism removal to setting for, guarantee the precision.
In this embodiment, the driving power source is a driving motor, and the driving motor realizes driving control on 4 wheels.
In order to realize the lift control to the slip casting pipe, the support supports lifting unit, and lifting unit is connected with the blind end of slip casting pipe, and the other end of slip casting pipe is the open end and is used for flowing out thick liquid, and lifting unit is connected with the controller, through lifting unit's setting, can insert in the section of jurisdiction slip casting hole when slip casting pipe 1 risees, can break away from the section of jurisdiction slip casting hole when the slip casting pipe descends, and the slip casting pipe withdraws promptly, avoids slip casting mechanism to take place to interfere with the section of jurisdiction at the in-process slip casting pipe.
In the embodiment, the lifting part adopts a hydraulic cylinder 3, and the bottom end of the hydraulic cylinder 3 is supported by a bracket.
In addition, the controller is a PLC controller or other types of controllers, and the controller is connected to a control panel of the cab of the shield tunneling machine, so that unified control of the secondary grouting device in the cab is facilitated.
It will be appreciated that in some examples, referring to fig. 2, the side portion of the grouting pipe 1 is provided with a grouting pipe joint 2 for connecting with the grouting pipe, the grouting pipe joint 2 is vertically connected with the grouting pipe 1, of course, a control switch may also be provided at the grouting pipe joint 2, cement slurry is supplied to the grouting pipe 1 through the grouting pipe joint 2, and after the control switch is turned on, the slurry supplied from the grouting pipe joint flows through the control switch to the grouting hole of the pipe piece.
It can be understood that the track 6 is arc-shaped, the track is concentrically arranged with the center of the tunnel, the length direction of the grouting pipe 1 is positioned on the diameter extension line of the track, the track 6 has a set length to ensure that the grouting mechanism moves along the track, the track 6 is arranged on the inner side of the circular spliced duct piece, a set distance is reserved between the track and the duct piece, and the grouting mechanism can be accommodated;
through curved track setting, effectively guarantee grouting mechanism can realize setting for the removal in the within range to the secondary grouting operation of at least a section of jurisdiction is covered.
It will be appreciated that the wheels have braking means which effectively ensure the safety of the wheels travelling on the track, given that the track is arcuate.
Specifically, the brake component can adopt a magnet, a switch magnet is arranged on the support, when the wheels stop moving, the switch magnet is turned on, the position of the grouting mechanism is ensured to be unchanged, and when the wheels need to move, the switch magnet is turned on again, and the switch magnet is connected with the controller.
Additionally, in some examples, the rail upper surface has a chute for defining movement of the grouting mechanism along the chute; in some examples, to further ensure the stability of the wheel when the track is stopped, the two ends of the track are respectively provided with an end plate, the two ends of the track are provided with lugs by the arrangement of the end plates, and thus the grouting mechanism is effectively limited through the end plates, and the stability of the grouting mechanism when parked is ensured.
It is easy to understand that the distance between the track 6 and the inner side surface of the top of the assembled duct piece 8 is set, and the distance is larger than the height of the grouting mechanism (the height when the lifting component is retracted), and the maximum height of the grouting mechanism is larger than the distance between the track and the inner side surface of the top of the duct piece through the arrangement of the lifting component, so that the grouting pipe can be inserted into the duct piece grouting hole, and the smooth grouting is ensured.
Further, in order to monitor the grouting process, the grouting pipe 1 or the grouting pipe joint is provided with a flowmeter and a pressure gauge, the flowmeter and the pressure gauge are respectively connected with a controller, the flowmeter is arranged for monitoring the flow of grouting liquid injected into the pipe piece by the grouting pipe, and the grouting quality is fully ensured by matching with the control of the controller on a control switch; the pressure gauge is used for monitoring the pressure of injected slurry and ensuring the grouting pressure of secondary grouting.
Example two
The embodiment provides a method for secondary grouting of a shield tunneling machine, which adopts the device for secondary grouting of the shield tunneling machine according to the embodiment one, and comprises the following contents:
after the segment assembly at the rear of the shield tunneling machine is completed, the grouting mechanism moves a set distance to a segment grouting hole in a set range at the top of the tunnel along the track and/or under the drive of the moving part;
raising the grouting pipe to enable the grouting pipe to be inserted into the pipe piece grouting hole, and enabling the end of the grouting pipe to exceed the outer side face of the pipe piece;
the grouting pipe performs secondary grouting, and after the set flow and/or pressure are reached, the grouting pipe stops grouting and reduces the grouting pipe;
the grouting mechanism continuously moves along the track for a set distance, and performs secondary grouting on the other duct pieces within a set range at the top of the tunnel.
In some examples, only the topmost segment of the tunnel is secondarily grouted.
In the whole method, the control of the moving part, the lifting part, the control switch and the frame wheels can be realized directly through the controller, the secondary grouting operation is easily realized, and the automatic control of the secondary grouting operation is realized.
Example III
The embodiment provides a shield tunneling machine, including embodiment one a device for shield tunneling machine secondary grouting, wherein, shield tunneling machine connection crane span structure 9 is the connecting bridge steelframe, and the connecting bridge steelframe top has the many places exposed end, and the exposed end of connecting bridge steelframe all sets up the draw-in groove, supports landing leg, i.e. longitudinal support beam 7 through the draw-in groove, and longitudinal support beam 7 is connected with moving part, and longitudinal support beam 7 sets up vertically or the slope sets up, supports track 6 through many longitudinal support beams 7.
When the top end of the connecting bridge steel frame of the shield tunneling machine is a plane, the longitudinal supporting beam 7 is vertically arranged, and when the top end of the connecting bridge steel frame is an inclined plane, the longitudinal supporting beam 7 is obliquely arranged.
It will be appreciated that the longitudinal support beam may be an i-beam which is arranged to facilitate a secure connection with the longitudinal support beam 7 and the track 6.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The method for secondary grouting of the shield machine is characterized in that a device for secondary grouting of the shield machine is adopted, the device comprises a track supported by the shield machine and a grouting mechanism capable of moving along the track, the track is arranged along the circumferential direction of a tunnel, the grouting mechanism comprises a grouting pipe used for grouting a pipe piece within a set range of the top of the tunnel, and the grouting pipe can be lifted so that the grouting pipe can be inserted into a pipe piece grouting hole;
the track is also movable relative to the shield machine along a longitudinal direction of the tunnel;
the track is supported by a connecting bridge of the shield machine or by a supporting frame of a trolley of the shield machine;
the grouting pipe is provided with a control switch which is connected with the controller;
the grouting mechanism is connected with wheels through a bracket, the wheels are connected with a driving power source, and the driving power source is connected with the controller;
the grouting mechanism further comprises a lifting component, wherein the lifting component is connected with one end of the grouting pipe, and the lifting component is connected with the controller;
The wheel is provided with a braking part, the braking part adopts a magnet, a switch magnet is arranged on a bracket, when the wheel stops moving, the switch magnet is turned on, the position of the grouting mechanism is ensured to be unchanged, and when the wheel needs to move, the switch magnet is turned on, and the switch magnet is connected with a controller;
the method comprises the following steps:
After the segment assembly at the rear of the shield tunneling machine is completed, the grouting mechanism moves along the track by a set distance to a segment grouting hole in a set range at the top of the tunnel;
raising the grouting pipe to enable the grouting pipe to be inserted into the pipe piece grouting hole, and enabling the end of the grouting pipe to exceed the outer side face of the pipe piece;
the grouting pipe performs secondary grouting, and after the set flow and/or pressure are reached, the grouting pipe stops grouting and reduces the grouting pipe;
the grouting mechanism continuously moves along the track for a set distance, and performs secondary grouting on the other duct pieces within a set range at the top of the tunnel.
2. The method for secondary grouting of a shield tunneling machine according to claim 1, wherein the support frame of the shield tunneling machine or the shield tunneling machine trolley is provided with a clamping groove, the lower surface of the track is provided with a supporting leg, the supporting leg is clamped into the clamping groove, and the moving component is connected with the supporting leg to drive the supporting leg to move along the clamping groove.
3. The method for secondary grouting of a shield tunneling machine according to claim 1, wherein a grouting pipe joint for connecting with a grouting pipe is arranged at the side part of the grouting pipe;
the grouting pipe is provided with a flowmeter and a pressure gauge which are respectively connected with the controller.
4. The method for secondary grouting of a shield tunneling machine according to claim 1, wherein said track is arc-shaped;
The set distance is arranged between the track and the top of the assembled duct piece, and is larger than the height of the grouting mechanism when the grouting mechanism is lowered to the lowest position.
5. The method for secondary grouting of a shield tunneling machine according to claim 1, wherein said controller is connected to a control panel of a cab of said shield tunneling machine.
6. A shield tunneling machine, wherein a method for secondary grouting of the shield tunneling machine according to any one of claims 1-5 is employed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111232475.XA CN114033423B (en) | 2021-10-22 | 2021-10-22 | Device and method for secondary grouting of shield machine and shield machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111232475.XA CN114033423B (en) | 2021-10-22 | 2021-10-22 | Device and method for secondary grouting of shield machine and shield machine |
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| CN114033423A CN114033423A (en) | 2022-02-11 |
| CN114033423B true CN114033423B (en) | 2024-11-22 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856629A (en) * | 2022-04-25 | 2022-08-05 | 北京市政建设集团有限责任公司 | A secondary grouting device for shield machine |
| CN115059500B (en) * | 2022-05-19 | 2025-04-11 | 宁波地铁产业工程有限公司 | Integrated equipment and method for rapid sealing and rescue of shield tunnels |
| CN115434725B (en) * | 2022-08-09 | 2025-04-04 | 上海弥涅科技有限公司 | A shield tunnel compaction grouting equipment |
| CN116335720B (en) * | 2023-03-17 | 2025-08-01 | 中铁二十局集团第五工程有限公司 | Water-bursting blocking device for burst mud and water-bursting blocking method for tunnel |
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| CN102251747A (en) * | 2011-06-20 | 2011-11-23 | 北京首尔工程技术有限公司 | Arc-shaped drill rack |
| CN208858363U (en) * | 2018-08-20 | 2019-05-14 | 中铁十二局集团第四工程有限公司 | An automatic grouting device for the narrow space of shield tunnel |
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| CN102251747A (en) * | 2011-06-20 | 2011-11-23 | 北京首尔工程技术有限公司 | Arc-shaped drill rack |
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