CN108842751A - Tunnel foundation bracing means - Google Patents
Tunnel foundation bracing means Download PDFInfo
- Publication number
- CN108842751A CN108842751A CN201810888915.9A CN201810888915A CN108842751A CN 108842751 A CN108842751 A CN 108842751A CN 201810888915 A CN201810888915 A CN 201810888915A CN 108842751 A CN108842751 A CN 108842751A
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- CN
- China
- Prior art keywords
- steel plate
- junction steel
- junction
- arch
- pipe pile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
Abstract
The invention belongs to technical field of tunnel construction, propose a kind of tunnel foundation bracing means.A kind of tunnel foundation bracing means proposed, the steel arch-shelf of tunnel foundation have semicircle arch and the row's arc bow members below semicircle arch；Semicircle arch is opposite with the bending direction of row's arc bow members；It is connected as one respectively by square connection frame between the two sides and row's arc bow members of semicircle arch；Square connection frame has vertically disposed junction steel plate I and junction steel plate II；Stiffener plate is provided between junction steel plate I and junction steel plate II；The junction of junction steel plate I, junction steel plate II and junction steel plate I and junction steel plate II passes through steel-pipe pile respectively and ground is fixedly connected；The angle of steel-pipe pile and vertical direction is 30-45 degree；The steel-pipe pile and the square connection frame collectively form tunnel foundation bracing means.The present invention effectively reduces the load on arch springing ground unit area, reduces the settlement of foundation of loess tunnel.
Description
Technical field
The invention belongs to technical field of tunnel construction, and in particular to a kind of tunnel foundation bracing means.
Background technique
Since the soil is porous that hole is big for loess, it often will appear collapsible loess structure in the construction in tunnel, it is this
Vertical joints development makes the bearing capacity of ground be far smaller than common ground；It is larger in the erosion and load for encountering water
When usually just will appear sedimentation；Therefore it needs to handle collapsible loess substrate by some reinforcement measures；At present
The country with it is more be cement compaction pile and two kinds of root pile；
Collapsible loess tunnel base treatment construction site is influenced and the limitation of cavern by tunnel tunnel face excavation, section excavation
It temporally and spatially influences each other and interferes between → bottom stab ilization → excavation face supporting；Cement compaction pile and root pile pair
Construction interference is larger, largely constrains Tunnel Construction Schedule.
Summary of the invention
In order to solve the above technical problems, the purpose of the present invention is to propose to a kind of tunnel foundation bracing means.
The present invention is to complete above-mentioned purpose to adopt the following technical scheme that：
A kind of tunnel foundation bracing means, the steel arch-shelf of tunnel foundation have semicircle arch and below semicircle arches
Row's arc bow members；The semicircle arch is opposite with the bending direction of row's arc bow members；The two sides of the semicircle arch and arch
It is connected as one respectively by square connection frame between frame；The square connection frame has vertically disposed junction steel plate
I and junction steel plate II；The upper end of the junction steel plate I is connected firmly with semicircle arch, and lower end and one end of junction steel plate II connect firmly；
The junction steel plate II is connected firmly with the row's arc bow members；It is provided with and adds between the junction steel plate I and junction steel plate II
Strengthening tendons plate；The junction of junction steel plate I, junction steel plate II and the junction steel plate I and junction steel plate II passes through steel respectively
Tubular pole is fixedly connected with ground；The steel-pipe pile is located at and the junction steel plate I, junction steel plate II and junction steel plate
I with the two sides of the junction of junction steel plate II, and by U-shaped steel muscle and the junction steel plate I, junction steel plate II and connect
Steel plate I is welded as a whole with II junction of junction steel plate；The angle of the steel-pipe pile and vertical direction is 30-45 degree；Described
Steel-pipe pile and the square connection frame collectively form tunnel foundation bracing means.
A kind of tunnel foundation bracing means proposed by the present invention, arch springing steelframe are changed to square by circular-arc-shaped design and set
Meter, it is assembled in advance good, into hole after with above lead arch and connect, increase foundation bearing capacity by setting steel-pipe pile, arch springing is by circular arc
Shape is adjusted to square and increases the contact area of arch springing concrete and ground, effectively reduces the load on arch springing ground unit area
Lotus, present invention decreases the sedimentations of loess tunnel.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of right angle connection frame in Fig. 1.
Fig. 3 is the structural schematic diagram that steel-pipe pile is connect with junction steel plate I in the present invention.
Fig. 4 is the A direction view of Fig. 3.
In figure：1, semicircle arch, 2, row's arc bow members, 3, square connection frame, 3-1, junction steel plate I, 3-2, connection steel
Plate II, 3-3, stiffener plate, 4, steel-pipe pile, 5, U-shaped steel muscle.
Specific embodiment
The present invention is illustrated with reference to the drawings and specific embodiments：
As shown in Figure 1, a kind of tunnel foundation bracing means, the steel arch-shelf of tunnel foundation has semicircle arch 1 and is located at semicircle
Row's arc bow members 2 below shape arch；The semicircle arch 1 is opposite with the bending direction of row's arc bow members 2；The semicircle arch
It is connected as one respectively by square connection frame 3 between 1 two sides and row's arc bow members 2；In conjunction with Fig. 2, the square connects
Frame 3 is connect with vertically disposed I 3-1 of junction steel plate and II 3-2 of junction steel plate；The upper end of I 3-1 of junction steel plate and semicircle
Arch 1 connects firmly, and lower end and one end of II 3-2 of junction steel plate connect firmly；II 3-2 of junction steel plate and the row's arc bow members 2
It connects firmly；Stiffener plate 3-3 is provided between II 3-2 of I 3-1 of junction steel plate and junction steel plate；I 3- of junction steel plate
1, it is one that the junction of II 3-2 of junction steel plate and junction steel plate I and junction steel plate II passes through steel-pipe pile 4 to connect firmly with ground respectively
Body；The diameter of steel-pipe pile is 89mm, length 6m；As shown in Figure 3, Figure 4, the steel-pipe pile 4 is located at and the connection steel
The two sides of the junction of plate I, junction steel plate II and junction steel plate I and junction steel plate II, in order to guarantee steel-pipe pile and steelframe
Effectively connection, is connect using U-shaped steel muscle with the junction steel plate I, junction steel plate II and junction steel plate I with junction steel plate II
Place is welded as a whole；Steel-pipe pile is placed in steel arch-shelf two sides, using fillet weld built-up welding connect, steel-pipe pile using 28 reinforcing bar of φ wrap up and
Be close to the profile steel frame edge of a wing to be welded and fixed and is integrated, miniature steel pipe pile in vertical direction with（30-45）Spend angle；The steel-pipe pile
4 collectively form tunnel foundation bracing means with the square connection frame.
Claims (1)
1. a kind of tunnel foundation bracing means, it is characterised in that：The steel arch-shelf of tunnel foundation has semicircle arch and is located at partly
Row's arc bow members below round arch；The semicircle arch is opposite with the bending direction of row's arc bow members；The semicircle arch
Two sides and row's arc bow members between be connected as one respectively by square connection frame；The square connection frame has vertical
The junction steel plate I and junction steel plate II of setting；The upper end of the junction steel plate I is connected firmly with semicircle arch, lower end with connect steel
One end of plate II connects firmly；The junction steel plate II is connected firmly with the row's arc bow members；The junction steel plate I and junction steel plate
Stiffener plate is provided between II；The company of the junction steel plate I, junction steel plate II and junction steel plate I and junction steel plate II
The place of connecing is fixedly connected by steel-pipe pile and ground respectively；The steel-pipe pile is located at and the junction steel plate I, junction steel plate
II and junction steel plate I and junction steel plate II junction two sides, and by U-shaped steel muscle and the junction steel plate I, connect
Steel plate II and junction steel plate I are welded as a whole with II junction of junction steel plate；The angle of the steel-pipe pile and vertical direction is
30-45 degree；The steel-pipe pile and the square connection frame collectively form tunnel foundation bracing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888915.9A CN108842751A (en) | 2018-08-07 | 2018-08-07 | Tunnel foundation bracing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888915.9A CN108842751A (en) | 2018-08-07 | 2018-08-07 | Tunnel foundation bracing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108842751A true CN108842751A (en) | 2018-11-20 |
Family
ID=64192467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810888915.9A Pending CN108842751A (en) | 2018-08-07 | 2018-08-07 | Tunnel foundation bracing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108842751A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250044A (en) * | 2001-02-23 | 2002-09-06 | Ando Corp | Continuous construction method for tunnel block |
| JP2007217960A (en) * | 2006-02-16 | 2007-08-30 | Takatoku:Kk | Arched slope protection frame structure construction method for stabilizing slope face and creating comfortable scenery and its arched slope protection frame structure |
| CN104818997A (en) * | 2015-04-28 | 2015-08-05 | 中铁工程设计咨询集团有限公司 | Prefabricated lagging jack primary support structure inside tunnel and preparation method thereof |
| CN106150533A (en) * | 2015-03-24 | 2016-11-23 | 兰州交通大学 | A kind of loess tunnel vertical deformation control structure and apply method |
| CN205823305U (en) * | 2016-06-13 | 2016-12-21 | 中铁五局集团有限公司 | A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location |
| CN106246190A (en) * | 2016-08-12 | 2016-12-21 | 中铁二十局集团第四工程有限公司 | A kind of nine base tunnel construction methods of tunnel and Double sidewall |
| CN205977241U (en) * | 2016-08-16 | 2017-02-22 | 郑州水务建筑工程股份有限公司 | A steel shotcrete for native tunnel |
| CN206888998U (en) * | 2017-04-28 | 2018-01-16 | 中铁二十二局集团第五工程有限公司 | A kind of inclined shaft and main tunnel transposition section door frame |
-
2018
- 2018-08-07 CN CN201810888915.9A patent/CN108842751A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250044A (en) * | 2001-02-23 | 2002-09-06 | Ando Corp | Continuous construction method for tunnel block |
| JP2007217960A (en) * | 2006-02-16 | 2007-08-30 | Takatoku:Kk | Arched slope protection frame structure construction method for stabilizing slope face and creating comfortable scenery and its arched slope protection frame structure |
| CN106150533A (en) * | 2015-03-24 | 2016-11-23 | 兰州交通大学 | A kind of loess tunnel vertical deformation control structure and apply method |
| CN104818997A (en) * | 2015-04-28 | 2015-08-05 | 中铁工程设计咨询集团有限公司 | Prefabricated lagging jack primary support structure inside tunnel and preparation method thereof |
| CN205823305U (en) * | 2016-06-13 | 2016-12-21 | 中铁五局集团有限公司 | A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location |
| CN106246190A (en) * | 2016-08-12 | 2016-12-21 | 中铁二十局集团第四工程有限公司 | A kind of nine base tunnel construction methods of tunnel and Double sidewall |
| CN205977241U (en) * | 2016-08-16 | 2017-02-22 | 郑州水务建筑工程股份有限公司 | A steel shotcrete for native tunnel |
| CN206888998U (en) * | 2017-04-28 | 2018-01-16 | 中铁二十二局集团第五工程有限公司 | A kind of inclined shaft and main tunnel transposition section door frame |
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