CN112324444A - Shield large-gradient starting construction method - Google Patents
Shield large-gradient starting construction method Download PDFInfo
- Publication number
- CN112324444A CN112324444A CN202011351879.6A CN202011351879A CN112324444A CN 112324444 A CN112324444 A CN 112324444A CN 202011351879 A CN202011351879 A CN 202011351879A CN 112324444 A CN112324444 A CN 112324444A
- Authority
- CN
- China
- Prior art keywords
- shield
- steel ring
- frame
- shield machine
- construction method
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- E21D9/02—Driving inclined 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
-
- 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
Abstract
The invention relates to a shield large-gradient starting construction method, which comprises the following steps: providing a portal steel ring, and pre-burying the portal steel ring in the side wall of the working well according to the design axis of the shield tunnel; providing an originating frame, wherein the originating frame is provided with an inclined receiving plate, and the portal steel ring corresponding to the originating frame is arranged above the bottom of the working well; providing a reaction frame, arranging one side of the reaction frame, which is close to the originating frame and is far away from the portal steel ring, on the bottom of the working well, and enabling the reaction frame to be vertical to the originating frame; and providing a shield machine, and hoisting the shield machine to the receiving plate to enable the shield machine to move into the portal steel ring and dig into the soil body. When the shield machine enters the soil body, the shield central line can be closer to the inclined design axis, so that the shield central line is close to the design axis of the shield tunnel, and the deviation rectifying difficulty of the shield is greatly reduced.
Description
Technical Field
The invention relates to the technical field of underground engineering, in particular to a shield large-gradient launching construction method.
Background
A full-mechanized construction method in shield tunneling subsurface excavation construction is characterized in that a shield machine is pushed in the ground, surrounding rocks around are supported by a shield shell and duct pieces to prevent collapse into a tunnel, meanwhile, a cutting device is used for excavating soil in front of an excavation surface, the soil is transported out of the tunnel by an unearthing machine and is pressed and jacked at the rear part by a jack, and precast concrete duct pieces are assembled to form a tunnel structure.
The method is characterized in that a water conservancy tunnel and an electric power tunnel are large-gradient tunnels, the tunnels are not used for communicating vehicles, the design gradient of the tunnels reaches 45 per thousand, the design ramp of individual tunnels reaches 50 per thousand, if the shield tunnel has a certain design gradient, the design axis of the shield tunnel is inclined, the shield in the prior art usually horizontally tunnels soil, and the shield can only be adjusted in posture after completely tunneling the soil, so that before the shield starts to adjust the posture, the shield machine moves to the soil completely entering along the horizontal direction, the deviation between the central line of the shield and the design axis of the shield tunnel is larger and larger, the subsequent adjustment of the posture of the shield is more difficult, the deviation is larger, the condition exceeding the design deviation range can be generated, the line type requirement cannot be met, the designed line needs to be adjusted, and the manpower, material resources and financial resources are consumed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a shield large-gradient originating construction method to solve the problems that the deviation between the shield central line and the designed axis is large, the deviation rectifying difficulty is large, the segment is easy to damage and even the designed line needs to be adjusted when a large-gradient tunnel is constructed in the prior art.
In order to achieve the aim, the invention provides a shield large-gradient starting construction method, wherein a shield is started from a working well, and the construction method comprises the following steps:
providing a portal steel ring, and embedding the portal steel ring in the side wall of the working well according to the design axis of the shield tunnel;
providing an originating frame, wherein the originating frame is provided with an inclined receiving plate, and the originating frame is arranged above the bottom of the working well corresponding to the portal steel ring;
providing a reaction frame, arranging one side of the reaction frame, which is close to the originating frame and is far away from the portal steel ring, above the bottom of the working well, and enabling the reaction frame to be vertical to the originating frame; and
and providing a shield machine, and hoisting the shield machine to the receiving plate to enable the shield machine to move into the portal steel ring and dig into the soil body.
According to the invention, the portal steel ring is pre-buried in the side wall of the working well according to the design axis of the shield tunnel, and the receiving plate for placing the shield machine is arranged in an inclined manner, so that the shield machine moves forwards along the downward inclined direction, the shield central line can be closer to the inclined design axis when the shield machine enters the soil body, so that the shield central line is close to the design axis of the shield tunnel, the deviation rectifying difficulty of the shield is greatly reduced, the shield machine can be closer to the design axis after completely entering the soil body, the posture of the shield machine can be easily adjusted to be completely overlapped with the design axis, the problem of adjusting the design line is avoided, the manpower and material resources are saved, and the construction efficiency is improved.
The shield large-gradient originating construction method is further improved in that when the design gradient of the shield tunnel is 20-50 per mill, the inclination angle of the receiving plate of the originating frame is 15-30 per mill.
The shield large-gradient originating construction method is further improved in that,
when the design gradient of the shield tunnel is 45 per thousand, the inclination angle of the receiving plate of the provided starting frame is 30 per thousand.
The shield large-gradient originating construction method is further improved in that,
after the portal steel ring is pre-embedded in the side wall of the working well, providing an extension steel ring, and fixedly arranging the extension steel ring on the outer end face of the portal steel ring;
and providing a sealing curtain cloth, and laying and fixing the sealing curtain cloth along the outer end face of the extension steel ring.
The shield large-gradient originating construction method is further improved in that,
after the extension steel ring is fixedly arranged on the portal steel ring, a plurality of sealing brushes are provided, and the sealing brushes are fixed along the inner wall of the extension steel ring to form at least one sealing ring.
The shield large-gradient originating construction method is further improved in that,
after the shield machine is hung on the receiving plate, a plurality of negative ring pipe pieces are provided, the negative ring pipe pieces are spliced and installed between a jack of the shield machine and the reaction frame, and the negative ring pipe pieces are pushed by the jack, so that the reaction frame can provide reverse acting force for the shield machine to push the shield machine to advance.
The shield large-gradient originating construction method is further improved in that,
before the portal steel ring is pre-buried in the side wall of the working well, a pouring space is formed in the soil body in an excavation mode corresponding to the inner side of the arrangement position of the portal steel ring, and the section size of the pouring space formed by excavation is not smaller than the section size of the inner wall of the portal steel ring;
and providing glass fiber reinforcements, binding and fixing the glass fiber reinforcements in a pouring space, and pouring concrete in the pouring space to form the tunnel door enclosure structure.
The shield large-gradient originating construction method is further improved in that,
and when the shield machine moves to the tunnel portal enclosure structure, starting a cutter head of the shield machine to cut the enclosure structure so that the shield machine digs into the soil body.
Drawings
Fig. 1 is a diagram illustrating a state in which a shield machine is suspended above a receiving plate in the shield heavy-gradient originating construction method of the present invention.
Fig. 2 is a state diagram of a shield tunneling machine part tunneling in a soil body in the shield large-gradient originating construction method of the present invention.
Fig. 3 is a state diagram of the shield machine in the shield heavy-gradient originating construction method of the present invention in fully tunneling the soil mass.
In the figure: the tunnel comprises a shield machine-1, a portal steel ring-2, an extension steel ring-3, a starting frame-4, a reaction frame-5, a negative ring pipe piece-6 and a working well-7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. 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.
The invention provides a shield large-gradient launching construction method which is used for launching a shield machine. According to the invention, the portal steel ring is pre-buried in the side wall of the working well according to the design axis of the shield tunnel, and the receiving plate for placing the shield machine is arranged in an inclined manner, so that the shield machine moves forwards along the downward inclined direction, the shield central line can be closer to the inclined design axis when the shield machine enters the soil body, so that the shield central line is close to the design axis of the shield tunnel, the deviation rectifying difficulty of the shield is greatly reduced, the shield machine can be closer to the design axis after completely entering the soil body, the posture of the shield machine can be easily adjusted to be completely overlapped with the design axis, the problem of adjusting the design line is avoided, the manpower and material resources are saved, and the construction efficiency is improved.
The shield heavy-gradient originating construction method of the invention is explained below with reference to the accompanying drawings.
Referring to fig. 1 to 3, in the present embodiment, a shield heavy-gradient originating construction method, in which a shield originates from a working well 7, includes the following steps:
providing a portal steel ring 2, and embedding the portal steel ring 2 in the side wall of the working well 7 according to the design axis of the shield tunnel.
An originating frame 4 is provided, the originating frame 4 is provided with a receiving plate in an inclined shape, and the originating frame 4 is arranged on the bottom of a working well 7 corresponding to the portal steel ring 2.
Providing a reaction frame 5, arranging the reaction frame 5 on the bottom of the working well 7 on the side of the originating frame 4 far away from the portal steel ring 2, and enabling the reaction frame 5 to be vertical to the originating frame 4.
Providing a shield machine 1, and hoisting the shield machine 1 to a receiving plate to enable the shield machine 1 to move into a portal steel ring 2 and dig into a soil body.
According to the construction method in the embodiment, the portal steel ring 2 is pre-buried in the side wall of the working well 7 according to the design axis of the shield tunnel, and the receiving plate for placing the shield machine 1 is arranged in an inclined manner, so that the shield machine 1 moves forwards along the downward inclined direction, when the shield machine 1 enters the soil body, the shield central line can be closer to the inclined design axis, so that the shield central line is close to the design axis of the shield tunnel, the deviation rectifying difficulty of the shield is greatly reduced, the shield machine can be closer to the design axis after completely entering the soil body, so that the shield machine 1 can easily adjust the posture to be completely coincided with the design axis, the problem of adjusting the design line is avoided, manpower and material resources are saved, and the construction efficiency is improved.
Referring to fig. 1, further, when the design gradient of the shield tunnel is 20 to 50 permillage, the inclination angle of the receiving plate of the starting frame 4 is 15 to 30 permillage, and the center position of the embedded portal steel ring 2 is 50 to 80mm lower than the embedded position of the portal steel ring 2 according to the horizontal central axis in the prior art, so as to prevent the shield machine 1 from rubbing the portal steel ring 2.
Referring to fig. 1 and 2, further, when the design gradient of the shield tunnel is 45%, the inclination angle of the receiving plate of the starting frame 4 is 30%, and the center position of the tunnel portal steel ring 2 embedded at this time is 70mm lower than the embedded position of the tunnel portal steel ring 2 according to the horizontal central axis in the prior art, so as to prevent the shield tunneling machine 1 from rubbing the tunnel portal steel ring 2.
Taking the design gradient of the shield tunnel as 45 per thousand as an example, if the shield tunnel is placed horizontally according to the conventional method, the starting frame 4 is made to coincide with the design axis of the shield tunnel, the shield advances forwards, because the shield can start posture adjustment only after completely entering the soil body, the shield machine 1 moves to the completely entering soil body along the horizontal direction, at the moment, the deviation between the shield center line and the design axis can reach 456mm, namely, the deviation exceeds the range of +/-100 mm of the design deviation, the line type requirement can not be met, the design line needs to be adjusted, and the manpower, material resources and financial resources are consumed.
Referring to fig. 2 and 3, in this embodiment, the inclination angle of the receiving plate of the starting frame 4 is set to 30 ‰, the central position of the buried tunnel portal steel ring 2 is 70mm lower than the designed central position of the tunnel portal steel ring 2, the shield starts in a downhill with a large gradient, the shield machine 1 moves forward along the downward inclination direction, and a certain gap is always formed between the shield machine 1 and the tunnel portal steel ring 2 in the process that the shield machine 1 passes through the tunnel portal steel ring 2, so that the shield machine 1 is not scratched with the tunnel portal steel ring 2, and the problem of jamming is avoided. When the shield machine 1 enters the soil body, the deviation between the shield central line and the design axis is 72mm, and within +/-100 mm required by construction specifications, meanwhile, the shield machine is influenced by self weight (the self weight is about 350 tons) and can sink to a certain extent in the starting process, and at the moment, the error of 72mm can be reduced under the action of self-gravity offset, so that the shield central line approaches to the design axis more. The shield can be closer to the designed axis after completely entering the soil body, so that the shield machine 1 can easily adjust the posture to be completely overlapped with the designed axis.
Referring to fig. 2 and 3, in the present embodiment, after the portal steel ring 2 is pre-buried in the sidewall of the working well 7, the extension steel ring 3 is provided, the extension steel ring 3 is fixedly arranged on the outer end face of the portal steel ring 2, the sealing curtain cloth is provided, and the sealing curtain cloth is laid and fixed along the outer end face of the extension steel ring 3. In the prior art, the sealing curtain cloth is usually arranged on the outer end face of the tunnel portal steel ring 2, after the tunnel portal is sealed and installed, the shield starts to be pushed forward, the sealing curtain cloth topples forward to form a sealing state with the shield body, and the sealing effect is achieved, but the sealing curtain cloth is easily stirred by the rotation of the cutter head for cutting the soil body, and the sealing performance is damaged, so that the extension steel ring 3 is additionally arranged, the sealing curtain cloth is arranged on the outer end face of the extension steel ring 3, the cutter head rotates only when the shield machine 1 cuts the soil body, and the cutter head is not rotated when the shield machine 1 passes through the extension steel ring 3, so that the problem that the sealing curtain cloth is stirred to influence the sealing performance is.
Referring to fig. 2 and 3, further, after the extension steel ring 3 is fixedly arranged on the portal steel ring 2, a plurality of sealing brushes are provided, the plurality of sealing brushes are fixedly arranged along the inner wall of the extension steel ring 3 to form at least one sealing ring, the sealing ring is arranged on the inner wall of the portal steel ring 2, and when the shield starts to push forwards, the sealing ring tilts forwards to form a sealing state with the shield body, so that a further sealing effect is achieved.
Referring to fig. 1, in a specific embodiment, after the shield tunneling machine 1 is hung on a receiving plate, a plurality of negative ring pipe pieces 6 are provided, a propulsion device is installed in the shield tunneling machine 1, the plurality of negative ring pipe pieces 6 are installed between a jack of the shield tunneling machine 1 and a reaction frame 5 in a splicing manner, and the negative ring pipe pieces 6 are pushed by the jack, so that the reaction frame 5 can provide a reverse acting force to the shield tunneling machine 1 to push the shield tunneling machine 1 to advance.
Further, before the portal steel ring 2 is pre-buried in the side wall of the working well 7, a pouring space is formed in the soil body by excavating corresponding to the inner side of the arrangement position of the portal steel ring 2, the section size of the pouring space formed by excavating is not smaller than that of the inner wall of the portal steel ring 2, glass fiber reinforcements are provided, the glass fiber reinforcements are bound and fixed in the pouring space, and concrete is poured in the pouring space to form a portal enclosure structure. The steel bar is usually buried in the enclosure structure in the prior art, but the shield constructs 1 can not cut the reinforcing bar of major diameter, and this application replaces reinforcing bar for glass fiber muscle both can guarantee enclosure structure's intensity, can directly cut the portal cell wall with shield constructs 1 again and come through the portal, and the influence of construction vibrations effect to excavation face when reducible chisel removes the portal.
Furthermore, when the shield machine 1 moves to the tunnel portal enclosure structure, a cutter head of the shield machine 1 is started to cut the enclosure structure, so that the shield machine 1 digs into the soil body.
Preferably, the starting frame 4 further comprises a plurality of support plates arranged at intervals along the length direction of the receiving plate, and the heights of the support plates increase from the portal steel ring 2 to the reaction frame 5.
By adopting the technical scheme, the invention has the following beneficial effects:
according to the invention, the portal steel ring is pre-buried in the side wall of the working well according to the design axis of the shield tunnel, and the receiving plate for placing the shield machine is arranged in an inclined manner, so that the shield machine moves forwards along the downward inclined direction, the shield central line can be closer to the inclined design axis when the shield machine enters the soil body, so that the shield central line is close to the design axis of the shield tunnel, the deviation rectifying difficulty of the shield is greatly reduced, the shield machine can be closer to the design axis after completely entering the soil body, the posture of the shield machine can be easily adjusted to be completely overlapped with the design axis, the problem of adjusting the design line is avoided, the manpower and material resources are saved, and the construction efficiency is improved. This application has increased the extension steel ring, will seal the curtain cloth setting on the outer terminal surface of extension steel ring, because the shield constructs the machine cutter head just rotatory when only cutting the soil body, the shield constructs the machine and does not rotate the cutter head when the extension steel ring to the sealed curtain cloth of stirring and influence the problem of leakproofness has been avoided. The sealing ring is arranged on the inner wall of the steel ring of the tunnel portal, and when the shield starts to push forwards, the sealing ring tilts forwards to form a sealing state with the shield body, so that the further sealing effect is achieved.
Claims (8)
1. A shield large-gradient starting construction method is characterized in that the construction method comprises the following steps:
providing a portal steel ring, and embedding the portal steel ring in the side wall of the working well according to the design axis of the shield tunnel;
providing an originating frame, wherein the originating frame is provided with an inclined receiving plate, and the originating frame is arranged above the bottom of the working well corresponding to the portal steel ring;
providing a reaction frame, arranging one side of the reaction frame, which is close to the originating frame and is far away from the portal steel ring, above the bottom of the working well, and enabling the reaction frame to be vertical to the originating frame; and
and providing a shield machine, and hoisting the shield machine to the receiving plate to enable the shield machine to move into the portal steel ring and dig into the soil body.
2. The shield heavy grade initial construction method according to claim 1,
when the design gradient of the shield tunnel is 20-50 per mill, the inclination angle of the receiving plate of the starting frame is 15-30 per mill.
3. The shield heavy grade initial construction method according to claim 2,
when the design gradient of the shield tunnel is 45 per thousand, the inclination angle of the receiving plate of the provided starting frame is 30 per thousand.
4. The shield heavy grade initial construction method according to claim 1,
after the portal steel ring is pre-embedded in the side wall of the working well, providing an extension steel ring, and fixedly arranging the extension steel ring on the outer end face of the portal steel ring;
and providing a sealing curtain cloth, and laying and fixing the sealing curtain cloth along the outer end face of the extension steel ring.
5. The shield heavy grade initial construction method according to claim 4,
after the extension steel ring is fixedly arranged on the portal steel ring, a plurality of sealing brushes are provided, and the sealing brushes are fixed along the inner wall of the extension steel ring to form at least one sealing ring.
6. The shield heavy grade initial construction method according to claim 1,
after the shield machine is hung on the receiving plate, a plurality of negative ring pipe pieces are provided, the negative ring pipe pieces are spliced and installed between a jack of the shield machine and the reaction frame, and the negative ring pipe pieces are pushed by the jack, so that the reaction frame can provide reverse acting force for the shield machine to push the shield machine to advance.
7. The shield heavy grade initial construction method according to claim 1,
before the portal steel ring is pre-buried in the side wall of the working well, a pouring space is formed in the soil body in an excavation mode corresponding to the inner side of the arrangement position of the portal steel ring, and the section size of the pouring space formed by excavation is not smaller than the section size of the inner wall of the portal steel ring;
and providing glass fiber reinforcements, binding and fixing the glass fiber reinforcements in a pouring space, and pouring concrete in the pouring space to form the tunnel door enclosure structure.
8. The shield heavy grade initial construction method according to claim 7,
and when the shield machine moves to the tunnel portal enclosure structure, starting a cutter head of the shield machine to cut the enclosure structure so that the shield machine digs into the soil body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011351879.6A CN112324444B (en) | 2020-11-27 | 2020-11-27 | Shield large-gradient starting construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011351879.6A CN112324444B (en) | 2020-11-27 | 2020-11-27 | Shield large-gradient starting construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112324444A true CN112324444A (en) | 2021-02-05 |
| CN112324444B CN112324444B (en) | 2023-01-31 |
Family
ID=74309589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011351879.6A Active CN112324444B (en) | 2020-11-27 | 2020-11-27 | Shield large-gradient starting construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112324444B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901188A (en) * | 2021-02-24 | 2021-06-04 | 中建八局轨道交通建设有限公司 | Shield large-gradient tunnel portal grinding construction method |
| CN113882864A (en) * | 2021-08-27 | 2022-01-04 | 上海市基础工程集团有限公司 | Automatic pipe jacking device with adjustable angle |
| CN115199814A (en) * | 2022-07-19 | 2022-10-18 | 北京城建设计发展集团股份有限公司 | Construction process for oblique jacking pipe receiving end |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767376A (en) * | 2012-05-28 | 2012-11-07 | 广东华隧建设股份有限公司 | Shield balanced launching and arriving construction method |
| CN104389619A (en) * | 2014-10-08 | 2015-03-04 | 海南大学 | Shield excess hole construction method |
| CN108825250A (en) * | 2018-06-22 | 2018-11-16 | 中铁九局集团第四工程有限公司 | Vertical curve variable slope segment shield secant method originates construction |
| CN109356599A (en) * | 2018-12-24 | 2019-02-19 | 中铁局集团有限公司 | Shield semi-ring originates construction method under the conditions of a kind of big longitudinal slope |
| CN109505613A (en) * | 2018-12-30 | 2019-03-22 | 中铁五局集团电务工程有限责任公司 | Originating method in the hole of earth pressure balanced shield, EPBS in small space |
| CN109667601A (en) * | 2017-10-17 | 2019-04-23 | 北京建工路桥集团有限公司 | A kind of construction method that glass fibre main reinforcement portal is originated with steel bushing and off-axis line |
| CN110080296A (en) * | 2019-04-29 | 2019-08-02 | 中铁四局集团有限公司 | A kind of unilateral glass muscle-reinforcement cage structure for tunnel shielding portal ground-connecting-wall |
| CN110159284A (en) * | 2019-05-22 | 2019-08-23 | 中铁十一局集团第四工程有限公司 | Strand hydraulic reclamation stratum shield machine is ultra-shallow earth-covered, big longitudinal slope originates construction method |
-
2020
- 2020-11-27 CN CN202011351879.6A patent/CN112324444B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767376A (en) * | 2012-05-28 | 2012-11-07 | 广东华隧建设股份有限公司 | Shield balanced launching and arriving construction method |
| CN104389619A (en) * | 2014-10-08 | 2015-03-04 | 海南大学 | Shield excess hole construction method |
| CN109667601A (en) * | 2017-10-17 | 2019-04-23 | 北京建工路桥集团有限公司 | A kind of construction method that glass fibre main reinforcement portal is originated with steel bushing and off-axis line |
| CN108825250A (en) * | 2018-06-22 | 2018-11-16 | 中铁九局集团第四工程有限公司 | Vertical curve variable slope segment shield secant method originates construction |
| CN109356599A (en) * | 2018-12-24 | 2019-02-19 | 中铁局集团有限公司 | Shield semi-ring originates construction method under the conditions of a kind of big longitudinal slope |
| CN109505613A (en) * | 2018-12-30 | 2019-03-22 | 中铁五局集团电务工程有限责任公司 | Originating method in the hole of earth pressure balanced shield, EPBS in small space |
| CN110080296A (en) * | 2019-04-29 | 2019-08-02 | 中铁四局集团有限公司 | A kind of unilateral glass muscle-reinforcement cage structure for tunnel shielding portal ground-connecting-wall |
| CN110159284A (en) * | 2019-05-22 | 2019-08-23 | 中铁十一局集团第四工程有限公司 | Strand hydraulic reclamation stratum shield machine is ultra-shallow earth-covered, big longitudinal slope originates construction method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901188A (en) * | 2021-02-24 | 2021-06-04 | 中建八局轨道交通建设有限公司 | Shield large-gradient tunnel portal grinding construction method |
| CN113882864A (en) * | 2021-08-27 | 2022-01-04 | 上海市基础工程集团有限公司 | Automatic pipe jacking device with adjustable angle |
| CN115199814A (en) * | 2022-07-19 | 2022-10-18 | 北京城建设计发展集团股份有限公司 | Construction process for oblique jacking pipe receiving end |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112324444B (en) | 2023-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112324444B (en) | Shield large-gradient starting construction method | |
| CN105298507A (en) | Underground pipe gallery construction method of machine performing open excavation on upper portion and tunneling on lower portion | |
| CN102606168B (en) | Construction method for preventing settlement and deformation of shallow-buried-excavation tunnel in excavation | |
| CN107747488B (en) | The construction method of big cross section shape of a hoof shield launching | |
| CN112065410B (en) | Method for receiving in shield soil body | |
| JP5781574B2 (en) | Starting reaction device for open shield machine | |
| CN104612722B (en) | Tunnel gate strengthening method for starting and arriving of annular shield or annular pushing pipe | |
| CN109026034A (en) | Circumferential direction digs shield mechanism and circumferential direction digs method | |
| CN108301842A (en) | A kind of fixing device and construction method for controlling duct pieces of shield tunnel floating | |
| CN102486092A (en) | Pipe jacking machine holing-through construction method of rectangular channel construction in deep soil layer | |
| US6315496B1 (en) | Method of lining a tunnel and apparatus for performing the same | |
| CN107130629A (en) | A kind of assembled station construction method of use anchor cable and bracing members building enclosure | |
| CN110836118A (en) | Equipment and method for rapid and safe tunnel construction under high ground stress and high geological hazards | |
| CN114033388B (en) | Shaft construction method for water-rich silty sand layer underground tunnel roof pipe | |
| CN104847373A (en) | Gravel clay stratum shield departure and reception construction process | |
| JP7357517B2 (en) | Pipe construction method using propulsion method | |
| CN114151096A (en) | Shield type TBM air-propelled assembled segment tunnel construction method | |
| JP2013160029A (en) | Tunnel structure and method for constructing the same | |
| CN216950369U (en) | Shield underwater receiving device | |
| CN209619757U (en) | The support system of across Coal Transportation tunnel crossover node on tunnel | |
| CN114607417B (en) | High-safety transportation channel in filling body and construction method thereof | |
| CN115369921B (en) | Easily buried electric power inspection well | |
| CN116122826A (en) | Shield well portal structure system for slope rate method construction and construction method | |
| CN216894507U (en) | High-safety transport channel in filling body | |
| CN211648163U (en) | Self-propelled open type shield machine system for constructing underground box culvert |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |