CN208816146U - A kind of grid steel frame with predetermined dismounting point - Google Patents
A kind of grid steel frame with predetermined dismounting point Download PDFInfo
- Publication number
- CN208816146U CN208816146U CN201821390869.1U CN201821390869U CN208816146U CN 208816146 U CN208816146 U CN 208816146U CN 201821390869 U CN201821390869 U CN 201821390869U CN 208816146 U CN208816146 U CN 208816146U
- Authority
- CN
- China
- Prior art keywords
- pilot tunnel
- bracket
- tunnel bracket
- steel plate
- support
- 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.)
- Expired - Fee Related
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
A kind of grid steel frame with predetermined dismounting point, including at least the first pilot tunnel bracket, second pilot tunnel bracket and arch, lateral frame is provided between the first pilot tunnel bracket and the second pilot tunnel bracket, wherein, infall between first pilot tunnel bracket and arch is provided with the first default dismounting point, infall between first pilot tunnel bracket and lateral frame is provided with the second default dismounting point, in the case where the first pilot tunnel bracket and the second pilot tunnel bracket are distributed about the arch in mirror symmetry, the second pilot tunnel bracket be also respectively arranged with described first at the first pilot tunnel bracket position to correspond to each other and default remove point and the second default dismounting point.Supporting temporary support abolishes position in the early stage for the connecting node setting of the utility model grid steel frame, is more conducive to Demolition Construction operation, accelerates construction speed, is conducive to stratum settlement control.
Description
Technical field
The utility model belongs to railway traffic engineering technical field more particularly to a kind of grid steel with predetermined dismounting point
Frame.
Background technique
Cavern-pile method is the common construction method in tunneling subway station in underground engineering, according to technological characteristics of construction, in tunneling
In pilot tunnels, the vertical bearing carrier in station and crown structure are completed, needs to abolish the temporary support of preliminary bracing in the construction process,
And then main arch two of constructing serves as a contrast.
During excavating the soil body among main arch section and abolishing temporary support, preliminary bracing stress system repeatedly occurs
Greatest risk when conversion, especially dismounting temporary support should take rationally effectively working measure to avoid arch deformation cracking, stratum
Excessive sedimentation.The preliminary bracing of its medium and small pilot tunnel adds gunite concrete using steel grating, and every Pin steel grating is divided into 5~6 lists
Member and node are arranged in vault, side wall and bottom board symmetry respectively, and the strength bolts connection such as use.
Successively every Pin is abolished for usual preliminary bracing temporary support segmentation, is set up manual operation platform, is cut and faced using pneumatic pick
When support 20~30cm of two ends concrete, then gas welding cut framework of steel reinforcement, finally transport dregs.It is generated in work progress
The security risks such as vibration, impact, noise, dust flying chip, open fire, labor intensity is larger, and especially high-frequency vibration influences initial stage branch
The structure stress of shield.
Suitable temporary support method for dismounting is selected, for keeping adjoining rock stability, structure safety and Green civilization construction tool
It is of great significance.
Utility model content
Word " module " as used herein describes any hardware, software or combination thereof, is able to carry out and " mould
The associated function of block ".
For the deficiencies of the prior art, the utility model provides a kind of with the predetermined grid steel frame for removing point, at least wraps
The first pilot tunnel bracket, the second pilot tunnel bracket and arch are included, is arranged between the first pilot tunnel bracket and the second pilot tunnel bracket
There is lateral frame, wherein the infall between the first pilot tunnel bracket and arch is provided with the first default dismounting point, the first pilot tunnel
Infall between bracket and lateral frame is provided with the second default dismounting point, in the first pilot tunnel bracket and described second
Pilot tunnel bracket about the arch in mirror symmetry distribution in the case where, the second pilot tunnel bracket with the first pilot tunnel branch
Also it is respectively arranged with described first at frame position to correspond to each other and presets dismounting point and the described second default dismounting point.
According to a kind of preferred embodiment, the first pilot tunnel bracket and/or the second pilot tunnel bracket by it respectively
First default remove point and the second default remove is divided into the first linkage section and the second linkage section, wherein along the first pilot tunnel
On the extending direction of bracket or the second pilot tunnel bracket, at least two angle bar are respectively arranged on first two ends of linkage section,
At least one first junction steel plate is respectively arranged on two ends of the second linkage section, wherein the angle bar and described
Several are provided on one junction steel plate for placing the fixation hole of bolt, first linkage section and second linkage section
It is connected to each other in such a way that bolt is embedded in the fixation hole.
According to a kind of preferred embodiment, respective first steel plate of at least two angle bar is fixed on institute in the way of welding
It states on two ends of the first linkage section, wherein be provided with the fixation hole on the second steel plate of angle bar.
According to a kind of preferred embodiment, the grid steel frame further includes the first support, wherein the first end of the first support
It being bolted on the first pilot tunnel bracket, the second end of the first support is fixed on the lateral frame through connector,
The second end of first support is also connect through handling part with first linkage section.
According to a kind of preferred embodiment, in the case where the extending direction of lateral frame is parallel to ground, with described second
The angle between contact surface and ground between default the second steel plate for removing the corresponding angle bar of point is acute angle, wherein the
The height on the lateral extent ground close to first support of two steel plates is less than its side far from first support.
According to a kind of preferred embodiment, at the corresponding position of the described first default dismounting point, first pilot tunnel
It is provided with the second junction steel plate on bracket and the second pilot tunnel bracket, is provided with third on two ends of the arch
Junction steel plate.
According to a kind of preferred embodiment, it is provided on second junction steel plate and the third junction steel plate several
A bolt hole, second junction steel plate and the third junction steel plate connect in the way of bolt is arranged in the bolt hole
It connects.
According to a kind of preferred embodiment, the grid steel frame further includes the second support, two end parts of the second support
It is not connected to the arch and the lateral frame, wherein in the case where the extending direction of lateral frame is parallel to ground, second
Support extends perpendicularly to ground.
According to a kind of preferred embodiment, the lateral frame, first support and second support are channel steel, round steel
One of with i shaped steel.
According to a kind of preferred embodiment, the first pilot tunnel bracket, the second pilot tunnel bracket and the arch are lattice
Grid arch.
The advantageous effects of the utility model:
Supporting temporary support abolishes position in the early stage for the connecting node setting of grid steel frame, is more conducive to Demolition Construction
Operation accelerates construction speed, is conducive to stratum settlement control.Meanwhile static state just can be carried out to grid steel frame using spanner and torn open
It removes, avoids influence of the high-frequency vibration to preliminary bracing structure, reduce operation fugitive dust, noise, reduce labor intensity, reach
Safety, green, economy, efficient construction effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model preferably has the predetermined grid steel frame for removing point；
Fig. 2, which is that the utility model preferred first is default, removes point and the second default structural schematic diagram for removing point；
Fig. 3 is the first default side view for removing point and the second default structure for removing point；With
Fig. 4 is the attachment structure schematic diagram of the preferred arch of the utility model and the first pilot tunnel bracket.
Reference signs list
1: the first pilot tunnel bracket, 2: the second pilot tunnel bracket 3: arch
4: lateral frame 5: the first is default to remove the default dismounting point of point 6: the second
7: the first supports 8: angle bar 9: fixation hole
10: connector 11: 12: the second junction steel plate of handling part
13: third junction steel plate 14: bolt hole 15: the second supports
16: the first junction steel plates 17: 18: eight word muscle of main reinforcement
19:U steel bar
1a: the first the 1b: the second linkage section of linkage section α: angle
Specific embodiment
It is described in detail with reference to the accompanying drawing.
As shown in Figures 1 to 4, the utility model provides a kind of with the predetermined grid steel frame for removing point, includes at least the
One pilot tunnel bracket 1, the second pilot tunnel bracket 2 and arch 3, are provided with lateral frame between the first pilot tunnel bracket 1 and the second pilot tunnel bracket 2
4, wherein the first pilot tunnel bracket 1 is provided with the first default dismounting point 5, the first pilot tunnel bracket with the infall between arch 3
Infall between 1 and lateral frame 4 is provided with the second default dismounting point 6, in the first pilot tunnel bracket and the second pilot tunnel bracket
About arch 3 in mirror symmetry distribution in the case where, the second pilot tunnel bracket at the first pilot tunnel bracket position to correspond to each other
Also it is respectively arranged with the first default point 5 and second of removing and presets dismounting point 6.Preferably, the intersection of the first pilot tunnel bracket and arch
The infall of place and the first pilot tunnel bracket and lateral frame be first it is default remove point and second it is default remove for the ease of
Ideal position in the case where description is not that the first default point and second of removing presets the absolute position for removing point, can
Understanding, based on Practical Project situation, first presets the position that dismounting point presets dismounting with second can be intersecting
There are certain deviations with the other component that is staggered for position.It is torn open for example, being preset there are three the end setting even more than component first
Except when, due to the influence of the end volume of each component, it is impossible to guarantee that it is located in absolute same point, therefore, each component
End can be carried out in the range near above-mentioned crosspoint suitably deviate to mutually stagger.
Preferably, the first pilot tunnel bracket and/or the second pilot tunnel bracket by its respective first it is default remove point and
Second default point of removing is divided into the first linkage section 1a and the second linkage section 1b, wherein leads along the first pilot tunnel bracket or second
On the extending direction of hole bracket, at least two angle bar 8 are respectively arranged on the first end of linkage section two, the second linkage section
At least one first junction steel plate 16 is respectively arranged on two ends, wherein be respectively provided on angle bar and the first junction steel plate
There are several for placing the fixation hole 9 of bolt, the first linkage section and second linkage section according to bolt insertion fixation hole
Mode is connected to each other.
Preferably, the first pilot tunnel bracket, the second pilot tunnel bracket and arch are grillages.As shown in figure 4, perpendicular to
In the plane of the extending direction of grillage, grillage includes at least four main reinforcements 17, and main reinforcement is connected by four single u-shaped reinforcing bars 19
It connects to form the section of rectangular or square, is additionally provided with two eight word muscle 18 in the section that main reinforcement limits.First steel of angle bar
Plate 9a is separately fixed on two ends of the first linkage section in the way of welding, wherein is set on the second steel plate 9b of angle bar
It is equipped with fixation hole.For example, as shown in figure 3, the first steel plate of angle bar is fixed on the main reinforcement of the first linkage section in the way of welding
On, the extending direction of the surface of the first steel plate perpendicular to the first main reinforcement.
Preferably, grid steel frame further includes the first support, wherein the first end of the first support is bolted on first
On pilot tunnel bracket, the second end of the first support is fixed on lateral frame through connector 10, and the second end of the first support is also through handling
Part 11 is connect with the first linkage section.Preferably, lateral frame, the first support and the second support are in channel steel, round steel and i shaped steel
One kind.Connector can be reinforcing bar or channel steel, and connector can be fixed on the end of the first support in a welding manner.It hangs
Fortune part can be chain block, and one end of chain block can be fixed on the first linkage section, by pulling the another of chain block
One end just can separate the first linkage section with the second linkage section.Preferably, for ease of description, it is to be understood that second is pre-
If the position for removing point can be deviated according to the actual situation relative to the first support and the crossover location of the first pilot tunnel bracket
So that the first support and lateral frame are arranged on the second linkage section, i.e., the first linkage section only passes through bolt and the second linkage section
Connection, with other components without connecting in order to its dismounting.
Preferably, as shown in Fig. 2, in the case where the extending direction of lateral frame is parallel to ground, with the second default dismounting
The angle α between contact surface and ground between second steel plate of the corresponding angle bar of point is acute angle, wherein the second steel plate 9b
Close to first support 7 a lateral extent ground height be less than its far from first support 7 side so that nut can
Towards construction side, can be convenient for dismantling.
Preferably, at the position corresponding to the first default dismounting point 5, on the first pilot tunnel bracket and the second pilot tunnel bracket
It is provided with the second junction steel plate 12, is provided with third junction steel plate 13 on two ends of arch 3.Second junction steel plate and
Several bolts hole 14 are provided on three junction steel plates, the second junction steel plate and third junction steel plate are set according in bolt hole
The mode for setting bolt connects.Second junction steel plate is the end for being positioned close to the first default the second linkage section for removing point, such as
Shown in Fig. 4, the side that the second junction steel plate is fixed on main reinforcement makes the surface of the second junction steel plate be parallel to the extension side of main reinforcement
To.
Preferably, grid steel frame further includes the second support 15, and two ends of the second support are respectively connected to arch 3 and cross
Bracket 4, wherein in the case where the extending direction of lateral frame is parallel to ground, the second support extends perpendicularly to ground.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can be in the utility model
Various solutions are found out under the inspiration of disclosure, and these solutions also belong to the open scope of the utility model simultaneously
It falls within the protection scope of the utility model.It will be understood by those skilled in the art that the utility model specification and its attached drawing
It is illustrative and not constitutes limitations on claims.The protection scope of the utility model is by claim and its equivalent
It limits.
Claims (10)
1. it is a kind of with it is predetermined remove point grid steel frame, include at least the first pilot tunnel bracket (1), the second pilot tunnel bracket (2) and
Arch (3), which is characterized in that be provided with lateral frame between the first pilot tunnel bracket (1) and the second pilot tunnel bracket (2)
(4), wherein
Infall between first pilot tunnel bracket (1) and arch (3) is provided with the first default dismounting point (5), the first pilot tunnel
Infall between bracket (1) and lateral frame (4) is provided with the second default dismounting point (6),
In the first pilot tunnel bracket (1) and the second pilot tunnel bracket (2) about the arch (3) in mirror symmetry distribution
In the case of, the second pilot tunnel bracket (2) be also respectively arranged at the first pilot tunnel bracket (1) position to correspond to each other
Preset dismounting point (6) in the described first default remove point (5) and described second.
2. grid steel frame as described in claim 1, which is characterized in that the first pilot tunnel bracket (1) and/or described second lead
Hole bracket (2) is divided into the first linkage section (1a) by its respective first default dismounting point (5) and the second default remove point (6)
With the second linkage section (1b), wherein
On the extending direction of the first pilot tunnel bracket (1) or the second pilot tunnel bracket (2), on two ends of the first linkage section (1a)
Be respectively arranged at least two angle bar (8), be respectively arranged on two ends of the second linkage section (1b) at least one
One junction steel plate (16),
Wherein, several are provided with for placing the fixation of bolt on the angle bar (8) and first junction steel plate (16)
Hole (9), first linkage section (1a) and second linkage section (1b) in such a way that bolt is embedded in the fixation hole (9) that
This connection.
3. grid steel frame as claimed in claim 2, which is characterized in that respective first steel plate of at least two angle bar (8)
(9a) is separately fixed on two ends of first linkage section (1a) in the way of welding, wherein
The fixation hole (9) are provided on the second steel plate (9b) of angle bar (8).
4. grid steel frame as claimed in claim 3, which is characterized in that the grid steel frame further includes the first support (7),
In, the first end of the first support (7) is bolted on the first pilot tunnel bracket (1), the second end of the first support (7)
It is fixed on the lateral frame (4) through connector (10),
The second end of first support (7) is also connect through handling part (11) with first linkage section (1a).
5. grid steel frame as claimed in claim 4, which is characterized in that be parallel to ground in the extending direction of lateral frame (4)
In the case of, with the contact surface and ground between the described second default the second steel plate (9b) for removing point (6) corresponding angle bar (8)
Angle (α) between face is acute angle, wherein
The height on the lateral extent ground close to first support (7) of the second steel plate (9b) is less than it far from described first
Support the side of (7).
6. grid steel frame as claimed in claim 5, which is characterized in that the position corresponding to the described first default dismounting point (5)
Place is set, is provided with the second junction steel plate (12) on the first pilot tunnel bracket (1) and the second pilot tunnel bracket (2), it is described
Third junction steel plate (13) are provided on two ends of arch (3).
7. grid steel frame as claimed in claim 6, which is characterized in that second junction steel plate (12) connects with the third
Several bolts hole (14), second junction steel plate (12) and the third junction steel plate (13) are provided on steel plate (13)
It is connected in the way of the setting bolt in the bolt hole (14).
8. grid steel frame as claimed in claim 7, which is characterized in that the grid steel frame further includes the second support (15), the
Two ends of two supports (15) are respectively connected to the arch (3) and the lateral frame (4), wherein
In the case where the extending direction of lateral frame (4) is parallel to ground, the second support extends perpendicularly to ground.
9. grid steel frame as claimed in claim 8, which is characterized in that the lateral frame (4), first support (7) and institute
Stating the second support (15) is one of channel steel, round steel and i shaped steel.
10. grid steel frame as claimed in claim 9, which is characterized in that the first pilot tunnel bracket (1), second pilot tunnel
Bracket (2) and the arch (3) are grillages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821390869.1U CN208816146U (en) | 2018-08-27 | 2018-08-27 | A kind of grid steel frame with predetermined dismounting point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821390869.1U CN208816146U (en) | 2018-08-27 | 2018-08-27 | A kind of grid steel frame with predetermined dismounting point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208816146U true CN208816146U (en) | 2019-05-03 |
Family
ID=66274844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821390869.1U Expired - Fee Related CN208816146U (en) | 2018-08-27 | 2018-08-27 | A kind of grid steel frame with predetermined dismounting point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208816146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320320A (en) * | 2021-12-31 | 2022-04-12 | 北京住总集团有限责任公司 | Supporting structure suitable for underground excavation section local expanding excavation and expanding excavation method |
-
2018
- 2018-08-27 CN CN201821390869.1U patent/CN208816146U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320320A (en) * | 2021-12-31 | 2022-04-12 | 北京住总集团有限责任公司 | Supporting structure suitable for underground excavation section local expanding excavation and expanding excavation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103075163B (en) | Support change process of second liner construction of large-cross-section tunnel | |
| CN108868834B (en) | Temporary support device for tunnel arch wall primary support intrusion limit arch changing construction | |
| CN104963301A (en) | Dragging, translating and lowering device and method for dismantling pier top beam section and pier | |
| CN110374612B (en) | Shield machine receiving platform applied to near-empty state and construction process | |
| CN104294769B (en) | A kind of piling and the construction method increasing the built bridge abutment structure of platform cap composite reinforcement | |
| CN107023309B (en) | Arch frame mounting trolley | |
| CN103603679A (en) | Vault steel frame for support tunnel arch and tunnel construction method | |
| KR102301960B1 (en) | Horizontal division simultaneous excavating method for tunnel | |
| CN110904867A (en) | Construction method for dismantling upper-span existing line arch bridge | |
| CN104929649A (en) | Tunnel transverse cave-to-master cave top brushing construction method and top brushing structure | |
| CN108301332A (en) | The detachable steel trestle construction method of beret slice | |
| CN110158609A (en) | A kind of mechanization demolition reduction method of reinforced concrete brace in foundation pit | |
| CN111022076B (en) | Construction method for large-span subway tunnel secondary lining vault by adopting split self-propelled form jumbo | |
| CN111577311A (en) | Construction process of cantilever type heading machine in soft rock tunnel | |
| CN204716248U (en) | Tunnel Heng Dong enters main hole and to caunch structure | |
| CN204097889U (en) | A kind of piling and the built bridge abutment structure of increase platform cap composite reinforcement | |
| CN208816146U (en) | A kind of grid steel frame with predetermined dismounting point | |
| CN110159312B (en) | Method for repairing straight wall circular arch tunnel lining | |
| CN206071096U (en) | The underpinning device of load bearing wall in brick mix structure | |
| CN112502730A (en) | Steel arch frame for preventing collapse of roadway at underground rock crushing section and supporting method thereof | |
| CN109751062A (en) | One kind facing sky fender Floor Heave in Roadway control method | |
| KR101184255B1 (en) | A construction method for a non-portal tunnel structure and a steel plate structure used in the method | |
| CN111946351B (en) | Rapid excavation method for contact channel of hard rock stratum of rail transit | |
| CN111764923B (en) | Construction method for dismantling temporary inverted arch of existing tunnel with cross-cut downward | |
| CN106758881A (en) | Bridge maintenance rail steel structural support arm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |