CN206957743U - A kind of rectangular steel pipe curtain foot attachment structure - Google Patents
A kind of rectangular steel pipe curtain foot attachment structure Download PDFInfo
- Publication number
- CN206957743U CN206957743U CN201720579754.6U CN201720579754U CN206957743U CN 206957743 U CN206957743 U CN 206957743U CN 201720579754 U CN201720579754 U CN 201720579754U CN 206957743 U CN206957743 U CN 206957743U
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- steel pipe
- vertical
- bolt
- type
- attachment structure
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 5
- 230000008093 supporting effect Effects 0.000 description 6
- 230000005641 tunneling Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model provides a kind of rectangular steel pipe curtain foot attachment structure, L-type including being placed in pilot tunnel is basic, the vertical steel pipe outside pilot tunnel, and for connecting the vertical bolt of two rows of vertical steel pipe and L-type basis, the vertical steel pipe towards L-type basis one side on offer two rows bolt hole corresponding with vertical bolt, described vertical bolt one end is connected through the bolt hole on vertical steel pipe, the other end by embedded bar with L-type basis.The utility model is simple in construction, is easy to build, and reduces the jacking quantity of vertical duct curtain, greatly reduces the construction period, is applicable to the base form of various pipe-roofing methods；L-type base form, it can agree with later stage agent structure perfection, increase space availability ratio, convenient construction, improve economic benefit.
Description
Technical field
The Underground Subway Station using pipe curtain structure as supporting construction is the utility model is related to, relates generally to pipe curtain structure pin
The construction and pipe curtain structure on portion basis.
Background technology
In recent years, city underground engineering is built into gold period.With the development of science and technology the support idea for excavation
And mode also gradually changes.Wherein use influence of the excavation to earth's surface and surrounding enviroment under pipe curtain support form smaller,
And pipe-roofing method can play the effect to block water to a certain extent.Therefore, China it is multiple build or built engineering using pipe
The form of curtain supporting is constructed.In general pipe curtain structure form is semi-enclosed domes, this structure tension performance compared with
It is good, but its space availability ratio is smaller, therefore there is the rectangular tube curtain structure of flat-top form.In order to ensure this kind of pipe curtain structure not
There is integral sinking when excavating the soil body below pipe curtain, need to be reinforced in the foot of pipe curtain structure, usually by more steel pipes simultaneously
Row links together, and to increase the bearing capacity of pipe curtain structure foot, sees Fig. 1.But such a reinforcing mode needs to increase the number of push pipe
Amount, extend the construction period, in addition during jacking construction, jacking precision is difficult to control, if deviation is larger, the company of adjacent steel pipe
Connect relatively difficult, then can reduce the consolidation effect of pipe curtain end, in turn result in the integral sinking of pipe curtain structure, and then influence pipe curtain
The supporting effect of structure.
Utility model content
The utility model provides one kind and is easy to construct, and is capable of the attachment structure of effective reinforcing pipe curtain structure foot,
Consolidation effect is more notable, and with the later stage, the construction of side wall and bottom plate at station is combined, and optimizes construction way.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
A kind of rectangular steel pipe curtain foot attachment structure, including the L-type being placed in pilot tunnel is basic, the vertical steel outside pilot tunnel
Pipe, and for connecting the vertical bolt of two rows of vertical steel pipe and L-type basis, one side of the vertical steel pipe towards L-type basis
On offer two rows bolt hole corresponding with vertical bolt, described vertical bolt one end is through the bolt hole on vertical steel pipe, separately
One end is connected by embedded bar with L-type basis.
Region between the vertical steel pipe and L-type basis has been vertically arranged minor-diameter steel-tube, and the minor-diameter steel-tube is used for
Through vertical bolt.
The vertical bolt welds with embedded bar in the minor-diameter steel-tube.
From above technical scheme, the utility model is simple in construction, is easy to build, and reduces the jacking number of vertical duct curtain
Amount, greatly reduces the construction period, is applicable to the base form of various pipe-roofing methods；L-type base form, can be with later stage master
Body perfect structure is agreed with, and is increased space availability ratio, convenient construction, is improved economic benefit.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model rectangular steel pipe curtain foot attachment structure；
Fig. 2 is the station profile using the utility model rectangular tube curtain foot attachment structure；
Fig. 3 is the top view of vertical steel pipe in the utility model.
Embodiment
A kind of preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
As shown in Fig. 2 rectangular steel pipe curtain foot attachment structure 10 is a part for pipe curtain supporting, for pipe curtain structure
Foot is reinforced, and is agreed with the perfection of later stage agent structure 20, increases space availability ratio, convenient construction.
As shown in figs. 1 and 3, rectangular steel pipe curtain foot attachment structure 10 includes L-type basis 30 and vertical steel pipe 40, L-type base
Plinth is placed in inside the pilot tunnel 70 of tunneling, and vertical steel pipe is placed on the outside of pilot tunnel, and the side of wherein vertical steel pipe towards pilot tunnel offers
Two row's bolts hole 41, vertical steel pipe are fixedly connected with L-type basis by vertical bolt 50.
Described vertical one end of bolt 50 passes through embedded bar 31 and L-type through the bolt hole 41 on vertical steel pipe, the other end
Basis 30 connects.Region between the vertical steel pipe and L-type basis has been vertically arranged minor-diameter steel-tube 60, the minor-diameter steel-tube
For through vertical bolt so that vertical bolt welds with embedded bar in minor-diameter steel-tube.
The specific method that the utility model rectangular steel pipe curtain foot attachment structure is used for the construction of pipe curtain structure is as follows：
First, supporting is carried out, up to along pipe curtain axle when excavating using the pilot tunnel 70 below benching tunnelling method construction pipe curtain first
To insertion.And when pilot tunnel is constructed according to the spacing of the bolt hole of vertical steel pipe, at the beginning of tunneling in branch the pre-buried@150 of φ 45 it is small
Diameter steel pipe 60, pre-buried preceding both ends carry out closure using plastic adhesive tape prevents concrete from entering, and is fixed using grid, prevents
Only minor-diameter steel-tube shifts during pneumatically placed concrete.
2nd, L-type basis is constructed, embedded bar 31 should be set when framework of steel reinforcement starts colligation at the top of it, it is pre-buried
Length meets 35d, and protruded length is more than 32d, adjusted at random according to the hole position of the minor-diameter steel-tube on tunneling pilot tunnel when pre-buried
It is whole, it is ensured that both are on same center line, to be subsequently attached.After the completion of steel skeleton overlap joint, formwork casting concrete.
3rd, during steel pipe jacking, for connected in tunneling pilot tunnel vertical steel pipe jacking when precision control extremely
Close important, it not only has influence on the direction of top push pipe, and influences the connection with L-type basis, answers continuity to enter during construction
Row measurement, correction in time, strive that the hole position up and down of vertical steel pipe is horizontal, its bolt hole is vertically connected with hole phase with minor-diameter steel-tube
It is logical.
4th, after the completion of push pipe, by vertical bolt 50 out of bolt hole 41 under wear, ensure that pilot tunnel supporting need not be being abolished
In the case of can by the pre-buried minor-diameter steel-tube 60 of tunneling and L-type basis embedded bar 31 weld, weld length is not less than 10d.
5th, after vertical bolt and embedded bar welding, quality examination is carried out, after the assay was approved, for junction branch
Mould, one-piece casting concrete is carried out, integral tube curtain structure and foot's strengthening construction finish.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New scope is defined, and on the premise of the utility model design spirit is not departed from, those of ordinary skill in the art are to this
The various modifications and improvement that the technical scheme of utility model is made, the guarantor that claims of the present utility model determine all should be fallen into
In the range of shield.
Claims (3)
- A kind of 1. rectangular steel pipe curtain foot attachment structure, it is characterised in that including be placed in pilot tunnel L-type basis, positioned at pilot tunnel Outer vertical steel pipe, and for connecting the vertical bolt of two rows of vertical steel pipe and L-type basis, the vertical steel pipe is towards L-type Two rows bolt hole corresponding with vertical bolt is offered in the one side on basis, described vertical bolt one end is passed through on vertical steel pipe Bolt hole, the other end are connected by embedded bar with L-type basis.
- 2. rectangular steel pipe curtain foot attachment structure according to claim 1, it is characterised in that the vertical steel pipe and L-type Region between basis has been vertically arranged minor-diameter steel-tube, and the minor-diameter steel-tube is used for through vertical bolt.
- 3. rectangular steel pipe curtain foot attachment structure according to claim 2, it is characterised in that the vertical bolt with it is pre-buried Reinforcing bar welds in the minor-diameter steel-tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720579754.6U CN206957743U (en) | 2017-05-23 | 2017-05-23 | A kind of rectangular steel pipe curtain foot attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720579754.6U CN206957743U (en) | 2017-05-23 | 2017-05-23 | A kind of rectangular steel pipe curtain foot attachment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206957743U true CN206957743U (en) | 2018-02-02 |
Family
ID=61375376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720579754.6U Active CN206957743U (en) | 2017-05-23 | 2017-05-23 | A kind of rectangular steel pipe curtain foot attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206957743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100650A (en) * | 2017-05-23 | 2017-08-29 | 中铁四局集团第五工程有限公司 | A kind of rectangular steel pipe curtain foot's attachment structure and its construction method |
-
2017
- 2017-05-23 CN CN201720579754.6U patent/CN206957743U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100650A (en) * | 2017-05-23 | 2017-08-29 | 中铁四局集团第五工程有限公司 | A kind of rectangular steel pipe curtain foot's attachment structure and its construction method |
| CN107100650B (en) * | 2017-05-23 | 2023-09-26 | 中铁四局集团第五工程有限公司 | Rectangular steel pipe curtain foot connecting structure and construction method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |