CN206769919U - Suitable for tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate - Google Patents
Suitable for tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate Download PDFInfo
- Publication number
- CN206769919U CN206769919U CN201720456609.9U CN201720456609U CN206769919U CN 206769919 U CN206769919 U CN 206769919U CN 201720456609 U CN201720456609 U CN 201720456609U CN 206769919 U CN206769919 U CN 206769919U
- Authority
- CN
- China
- Prior art keywords
- dividing plate
- steel plates
- gunite concrete
- rectangular steel
- arch
- 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
- 239000004567 concrete Substances 0.000 title claims abstract description 35
- 239000011378 shotcrete Substances 0.000 title claims abstract description 23
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses one kind to be suitable to tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate, including the rectangular steel plates being inserted into for level at bow member arch springing, the rectangular steel plates side offers the open slot being engaged with bow member arch springing, rectangular steel plates opposite side is provided with rotary-type handheld ring, and rectangular steel plates surface is welded with a plurality of a diameter of 16mm round steel along cartridge insertion direction interval.It is provided by the utility model to be suitable to tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate, it is simple in construction, it is easy to use, the phenomenon that arch springing gunite concrete lower surface bonds dregs can be prevented completely, and a batch face can be connect in concrete and leave clearly indenture, it is easy to and subordinate's step steel arch-shelf gunite concrete strong bonded, guarantee construction quality.
Description
Technical field
Construction of road and bridge technical field is the utility model is related to, is suitable to tunnel benching tunnelling method construction middle arch rack more particularly, to one kind
Gunite concrete dividing plate.
Background technology
Tunnel benching tunnelling method construction, i.e., in tunneling, carry out, often excavate one layer, i.e., steel is set in tunnel stage by stage
Simultaneously casting concrete as temporary support, prevents from caving in bow member.Due to the limitation of construction condition, first branch bow member is sprayed mixed
After solidifying soil, the arch springing lower surface of bow member easily bonds with dregs, and it is tight between subordinate step steel arch-shelf gunite concrete to influence it
, often there is weak intercalated layer in close combination, so as to produce serious quality problems between the two.Therefore, it is necessary to put into more people
The dregs that the power cost more time bonds to first branch bow member gunite concrete surface is cleared up.
The content of the invention
Used to solve the above problems, the utility model provides a kind of tunnel benching tunnelling method construction middle arch rack gunite concrete that is suitable to
Dividing plate.
To achieve the above object, the utility model can take following technical proposals：
It is described in the utility model to be suitable to tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate, including for level
The rectangular steel plates being inserted at bow member arch springing, the rectangular steel plates side offer the open slot being engaged with bow member arch springing, square
Shape steel plate opposite side is provided with rotary-type handheld ring, and rectangular steel plates surface is welded with a plurality of a diameter of 16mm along cartridge insertion direction interval
Round steel.
The open slot is two, and the round steel is five.
The rectangular steel plates thickness is 10-20mm, and rectangular steel plates width is more than bow member concrete width 50-60mm.
It is provided by the utility model be suitable to tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate, it is simple in construction, make
The phenomenon of dregs is bonded with arch springing gunite concrete lower surface conveniently, can be prevented completely, and a batch face can be connect in concrete and stayed
Under clearly indenture, be easy to and subordinate's step steel arch-shelf gunite concrete strong bonded, ensure construction quality.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
By taking the dividing plate suitable for H230 type grid steel arch-shelfs as an example, as shown in figure 1, described in the utility model be suitable to tunnel
Benching tunnelling method construction middle arch rack gunite concrete dividing plate, include long 600mm, wide 370mm, thick 10mm rectangular steel plates 1, its left side
Long side is spaced apart the open slot 2 for being provided with and being engaged with two steel arch-shelf arch springings, and right side long side is provided with rotary-type handheld ring 3, with
The side surface that gunite concrete is in contact is welded with 5 φ 16mm round steel 4 along cartridge insertion direction, and above-mentioned round steel 4 is by open slot 2
2,1,2 Packet State is separated into, for leaving indenture on gunite concrete surface, in favor of the superior and the subordinate's step steel arch-shelf injection
Combining closely between concrete.The thickness of above-mentioned rectangular steel plates 1 can meet the requirement that dividing plate is reused, and be advantageous to save
Cost；Its width is more than bow member concrete width 50mm, is easy to peel off on dividing plate and gunite concrete.Above-mentioned rotary-type handheld ring
3 do not influence gunite concrete, are easily installed, remove dividing plate.
Before dividing plate is installed, the high wooden units of 10cm are first padded above the junction steel plate of grid steel arch-shelf arch springing both sides as place mat,
Then it is the open slot 2 of dividing plate and arch springing level is plug-in, make with hole slag to isolate below dividing plate, afterwards rotary-type portable
The drop handle of ring 3, which is turned down, to be protected；After dividing plate installation, baffle surface earthing must be wiped clean, ensure no soil, avoid spraying
Penetrate concrete surface and bond loosened soil slag, influence isolation effect；After lower circulation bench excavation, artificial hand hammer taps the exposed portion of dividing plate
Point, after dividing plate loosening, rotary-type handheld ring 3 is pulled, is re-used after drawing out partition plate is removed into surface irregularities.
Removal steel diaphragm after construction gunite concrete, it is found that concrete joint part concrete is pollution-free, and use surface
Smooth molding round steel, therefore steel diaphragm is easy to remove, and concrete surface impression is clear, is easy to and subordinate's step steel arch-shelf spray
Concrete strong bonded is penetrated, meets construction speed and quality requirement.
Claims (3)
1. one kind is suitable to tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate, it is characterised in that：Including being inserted for level
Rectangular steel plates at bow member arch springing（1）, the rectangular steel plates（1）Side offers the open slot being engaged with bow member arch springing
（2）, rectangular steel plates（1）Opposite side is provided with rotary-type handheld ring（3）, rectangular steel plates（1）Welded along cartridge insertion direction interval on surface
There is a plurality of a diameter of 16mm round steel（4）.
2. according to claim 1 be suitable to tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate, it is characterised in that：
The open slot（2）For two, the round steel（4）For five.
3. according to claim 1 be suitable to tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate, it is characterised in that：
The rectangular steel plates（1）Thickness is 10-20mm, rectangular steel plates（1）Width is more than bow member concrete width 50-60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720456609.9U CN206769919U (en) | 2017-04-27 | 2017-04-27 | Suitable for tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720456609.9U CN206769919U (en) | 2017-04-27 | 2017-04-27 | Suitable for tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206769919U true CN206769919U (en) | 2017-12-19 |
Family
ID=60634102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720456609.9U Expired - Fee Related CN206769919U (en) | 2017-04-27 | 2017-04-27 | Suitable for tunnel benching tunnelling method construction middle arch rack gunite concrete dividing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206769919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915177A (en) * | 2019-04-28 | 2019-06-21 | 中交一公局第四工程有限公司 | A kind of first branch top bar arch junction steel plate protective device in tunnel |
-
2017
- 2017-04-27 CN CN201720456609.9U patent/CN206769919U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915177A (en) * | 2019-04-28 | 2019-06-21 | 中交一公局第四工程有限公司 | A kind of first branch top bar arch junction steel plate protective device in tunnel |
| CN109915177B (en) * | 2019-04-28 | 2024-03-08 | 中交一公局第四工程有限公司 | Protection device for steel plate for connecting primary support with upper step arch frame of tunnel |
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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: 20171219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |