CN206111181U - Freeze novel steel sheet wall of a well structure of well - Google Patents
Freeze novel steel sheet wall of a well structure of well Download PDFInfo
- Publication number
- CN206111181U CN206111181U CN201620846100.0U CN201620846100U CN206111181U CN 206111181 U CN206111181 U CN 206111181U CN 201620846100 U CN201620846100 U CN 201620846100U CN 206111181 U CN206111181 U CN 206111181U
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- steel plate
- high strength
- wall structure
- shaft wall
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Abstract
The utility model discloses a freeze novel steel sheet wall of a well structure of well, include: wall of a well inboard is located to the plastic slab, the reinforcing bar net is located the plastic slab is inboard, a steel sheet section of thick bamboo and pit shaft axis parallel arrangement to it puts to be located pit shaft central point, the concrete, pour in between plastic slab, the steel sheet section of thick bamboo. The utility model discloses can the wide application in all kinds of mine construction, composite shaft lining can not only construct and bears great water and soil pressure, can reduce wall of a well thickness, shaft excavation section and the volume of freezing the engineering etc. Moreover to reduce the total cost of mine construction.
Description
Technical field
This utility model is related to mine support construction applications, and more specifically, this utility model is related to one kind and presses with being used for
Big freeze-wellboring pit shaft borehole wall supporting construction (freezing wells with high strength RC new steel plate shaft wall structure).
Background technology
Pit shaft is the throat of mine, is mine construction the features such as with service year limit for length because of the particularity of its position
Construction Difficulties.According to statistics, the shaft lining breakage example of construction freezing method is of common occurrence, and pit shaft is successive in construction and production process
Generation freeze section borehole wall Support structure damage, or even individually pit shaft causes to flood the major accidents such as well.It is embodied in freeze section well
There is in various degree the phenomenons such as cracking, fracture, breakage in wall construction, keep in repair multiple repeatedly, and to mine huge economic damage is caused
Lose, and seriously threaten the safety in production of mine.
With the increase of mining depth, pit shaft is more and more deeper, and ground pressure is increasing, if shaft wall structure is propped up using traditional
Protection structure form, calculates according to the code requirement borehole wall by 1.0 hydrostatic pressings are born, and thickness of shaft wall is too thick, the deep-well borehole wall of major diameter
Thickness is even more than 3m, and not only increase is freezed, block difficulty dug, while also increasing investment cost.
The content of the invention
The purpose of this utility model is to provide a kind of freezing wells with high strength RC new steel plate shaft wall structure, with the depth for solving presently, there are
Items problem caused by well thickness of shaft wall is larger.
To achieve these goals, this utility model provides technical scheme below：
A kind of freezing wells with high strength RC new steel plate shaft wall structure, it includes：Plastic plate, located at borehole wall inner side；Bar-mat reinforcement, located at described
Plastic plate inner side；Steel plate cylinder, and the setting of pit shaft diameter parallel, and positioned at wellbore centre position；Concrete, pours in the plastics
Between plate, steel plate cylinder.
Preferably, in above-mentioned freezing wells with high strength RC new steel plate shaft wall structure, the steel plate barrel thickness be 10mm, 16mm, 20mm,
25mm or 35mm.
Preferably, in above-mentioned freezing wells with high strength RC new steel plate shaft wall structure, the steel plate cylinder welded by each circular arc steel plate and
Into the circular arc steel plate outside is welded with anchor clamp, and the anchor clamp is by the band steel that specification is wide by 80 × long 800mm × thickness 20mm
Bending machining is formed.
Preferably, in above-mentioned freezing wells with high strength RC new steel plate shaft wall structure, the plastic plate is double-deck polyethylene panel.
Preferably, in above-mentioned freezing wells with high strength RC new steel plate shaft wall structure structure, the bar-mat reinforcement includes the ring muscle being arranged circumferentially
With longitudinally disposed vertical muscle.
Preferably, in above-mentioned freezing wells with high strength RC new steel plate shaft wall structure, a diameter of 22～32mm of the ring muscle, the vertical muscle
A diameter of 20～28mm, the adjacent ring muscle spacing and the adjacent longitudinal bar spacing is 200～300mm.
Preferably, in above-mentioned freezing wells with high strength RC new steel plate shaft wall structure, the strength grade of concrete adopts C80～C90.
Preferably, in above-mentioned freezing wells with high strength RC new steel plate shaft wall structure, the steel plate cylinder is provided with multiple-anticorrosion coating.
Preferably, in above-mentioned freezing wells with high strength RC new steel plate shaft wall structure, the multiple-anticorrosion coating includes：The steel plate cylinder
Surface reaches Sa2.5 levels using blasting treatment；Subbing adopts epoxy zinc rich primer；Intermediate layer coating is using in epoxy micaceous iron
Between paint；Investment precoat adopts epoxy finish.
Preferably, in above-mentioned freezing wells with high strength RC new steel plate shaft wall structure, in the multiple-anticorrosion coating, subbing is applied
Thickness degree is 60 μm；Intermediate layer coating coating layer thickness is 60 μm；Investment precoat coating layer thickness is 80 μm.
Analysis understands that this utility model provides a kind of steel plate cylinder and concrete composite shaft lining structure, and in the borehole wall specification is met
Hydraulic pressure is calculated while require, moreover it is possible to the significantly thickness of the thinning borehole wall, reduce difficulty of construction, improve speed of application, saved
Great amount of investment, therefore, the composite shaft lining that steel plate cylinder is constituted with armored concrete (steel fiber reinforced concrete) is to huge thick alluvium
And highland pressure freezing shaft wall structure design has promotional value with application aspect.
Description of the drawings
The cross-sectional structure schematic diagram of the supporting construction embodiment that Fig. 1 is provided for this utility model；
Fig. 2 is the cross section structure diagram of A-A along the line in Fig. 1；
Fig. 3 is the cross section structure diagram of B-B along the line in Fig. 1；
Fig. 4 is the structural representation after plane steel plate welding anchor clamp；
Fig. 5 is the structural representation of anchor clamp.
Specific embodiment
This utility model is described in further details with reference to the accompanying drawings and detailed description.
In order to solve a supporting difficult problem for the current pit shaft borehole wall, as shown in Figure 1 and Figure 2, pit shaft is adopted in the inner side of the borehole wall 1
Composite support form, the wherein borehole wall 1 are the former borehole wall, and it includes concrete 11, the steel plate 12 on the outside of concrete 11, in short
It：In the inner side of the borehole wall 1, using circular arc steel plate 2, the outside of circular arc steel plate 2 welding anchor clamp 3, and cast-in-place mixed armored concrete
Or the composite support form of steel fiber reinforced concrete (being referred to as concrete 6).
It is new to this practicality below in conjunction with the supporting construction shown in Fig. 1-Fig. 3 in order to understand and not producing the sense for repeating
The freeze-wellboring pit shaft borehole wall supporting construction that type is provided is described simultaneously with construction method, and not independent description supporting knot
Structure or construction method.
As shown in Figure 1-Figure 3, the construction method that this utility model is provided is comprised the following steps：
First, plane steel plate is made into steel plate in the arc-shaped 2 on ground, and spilled water hole 20 is reserved on circular arc steel plate 2；
Again the anchor clamp 3 as shown in Figure 5 for processing is welded on into the outside of circular arc steel plate 2 (side of the borehole wall 1), as Figure 1-Figure 4.
The thickness of above-mentioned plane steel plate circular arc steel plate 2 in other words has as needed a multiple choices, such as 10mm, 16mm,
20mm、25mm、35mm.The height of every block of circular arc steel plate 2 may be selected to be 500～2000mm, length, and for 3～5m, (bending is circle
Before curved plate).
Preferably, this utility model is made at anti-corrosion also before the processing of circular arc steel plate 2 or before being transported into down-hole to it
Reason.For example, Sa2.5 levels are reached using blasting treatment to surface of steel plate, is then painted, wherein, subbing adopts epoxy zinc-rich
Priming paint, coating layer thickness is 60 μm；Intermediate layer coating adopts epoxy micaceous iron intermediate coat, and coating layer thickness is 60 μm；Investment precoat is adopted
Epoxy finish, 80 μm of coating layer thickness.It is highly preferred that weld seam between circular arc steel plate 2 and anchor clamp 3 and in each circular arc in down-hole
Weld seam between steel plate 2 is also adopted by the multiple-anticorrosion coating system.
As shown in figure 5, band steel bending machining of the anchor clamp 3 by specification for width 80mm × long 800mm × thickness 20mm is formed, bow
Depending on sight, anchor clamp 3 takes the shape of the letter U.Certainly, the specification of anchor clamp 3 is not limited thereto, in fact, the effect of anchor clamp 3 is：Make coagulation
Is formed effectively integrally between soil 6 and the steel plate cylinder that is welded into by circular arc steel plate 2, it is seen then that the shape of anchor clamp 3, specification have no
Limit, meet the similar effect of " anchor pole or anchor cable " in Geotechnical Engineering.
Then, in the inner side of the borehole wall 1, it is preferred that be close to the inner side of the borehole wall 1, lay at least one of which plastic plate 5, and in plastics
The inner side assembling reinforcement net of plate 5.
Preferably, plastic plate 5 is the bilayer of stacking, and plastic plate 5 is polyethylene panel.The reinforcing bar of the inner side of plastic plate 5
Net includes ring muscle 41, vertical muscle 42, wherein, ring muscle 41 is indulged muscle 42 and is adopted 20～28mm of diameter using the reinforcing bar of 22～32mm of diameter
Reinforcing bar, spacing is 200～300mm between adjacent ring muscle 41 or adjacent vertical muscle 42, and intersecting ring muscle 41, vertical muscle 42 are then tied up
Bundle is integrated.
Then, the circular arc steel plate 2 for being welded anchor clamp 3 is transported to into down-hole, assembly, centering, are then welded as in down-hole
Steel plate cylinder.
Preferably, the splicing gap of the vertical and ring of each circular arc steel plate 2 adopts solder design, and weld seam is using machinery
Automatic welding, further, vertical weldquality is two grades.To improve speed of welding, can be using electro-gas (enclosed) welding and carbon dioxide
Gas shielded arc welding technique.The parallel operations between vertical position welding and horizontal position welding can be realized, the speed of welding of steel plate is greatly speeded up.
Each circular arc steel plate 2 is welded as after steel plate cylinder, and due to the effect of steel plate cylinder, in application process, it can change
Become the stress of concrete 6, improve the overall intensity of the borehole wall.
After steel plate cylinder has been welded, between the outside of circular arc steel plate 2 and the inner side of the borehole wall 1, segmentation one-piece casting high intensity is high
Performance concrete 6.
That is, above-mentioned welding steel cylinder is also segmentation carrying out, not the steel plate cylinder in the inner side of the borehole wall 1 is all welded
After the completion of, in casting concrete 6, but steel plate cylinder completes one section, and concrete 6 pours one section, section construction.
Preferably, each section of a height of 500mm～1240mm, the strength grade of concrete 6 adopts C80～C90, segment section height to pour
Build steel fiber reinforced concrete.Wherein, steel fiber reinforced concrete is to add appropriate steel fibre in armored concrete, can be had
Effect improves the tensile property of concrete 6, the overall safety for improving supporting construction.
In work progress, because the strength grade requirement to concrete 6 is higher, need special messenger to prepare, thing is done before pouring
Reason performance test, then recirculation next one section is high.
As shown in Fig. 2 circular arc steel plate 2 and the reserved 4 contour, Grouting Pipe 7 that ring is uniform in concrete 6, along
The longitudinal direction of pit shaft, the spacing of Grouting Pipe 7 is not more than 30m.The effect of Grouting Pipe 7 is in 1 set of appropriate time built after terminating of the borehole wall
Carry out wall clearance grouting.Therefore, circular arc steel plate 2 reserve at Grouting Pipe 7 position a through hole arranging, when Grouting Pipe 7 is laid with
Circular arc steel plate 2 is welded.
Preferably, after the completion of slip casting, for mortar leakage prevention, one pipe plug 71 is set in the outer end termination of Grouting Pipe 7.Enter one
Step ground, material selection Φ 60X7 seamless steel pipes (YB231-70) of Grouting Pipe 7, the long 100mm of screw thread of pipe plug 71.
To sum up, this utility model provides one kind in freeze-wellboring shaft construction, and the borehole wall is using steel plate cylinder and cast-in-place steel
Reinforced concrete composite shaft lining or steel plate cylinder and steel fiber reinforced concrete composite shaft lining structural support form.Work progress includes：
Be welded with the circular arc steel plate cylinder of anchor clamp not only as the borehole wall bearing structure but also as concrete-pouring template, the circle circular arc of the borehole wall one
After steel plate is to connecting, circular arc steel plate ring and vertical abutment joint are welded, steel plate cylinder is formed, then to circular arc steel plate cylinder
The cast-in-place high intensity in outside, high performance steel or steel fiber reinforced concrete, complete the high steel plate docking of section, welding and a coagulation
After soil is poured, then carry out the high construction of next section.
Analysis and field test show that this utility model can be widely applied in all kinds of mine constructions, and composite shaft lining is not
It is only capable of structure and bears larger Water And Earth Pressures, and thickness of shaft wall, shaft excavation section and freezing engineering amount etc. can be reduced, so as to drops
Low mine construction total cost.
As known by the technical knowledge, this utility model can be by other essence without departing from its spirit or the reality of essential feature
Apply scheme to realize.Therefore, embodiment disclosed above, for each side, is all merely illustrative, and is not only
's.It is all in the range of this utility model or in the change being equal in the range of this utility model by this utility model bag
Contain.
Claims (10)
1. a kind of freezing wells with high strength RC new steel plate shaft wall structure, it is characterised in that include：
Plastic plate, located at borehole wall inner side；
Bar-mat reinforcement, located at plastic plate inner side；
Steel plate cylinder, and the setting of pit shaft diameter parallel, and positioned at wellbore centre position；
Concrete, pours between the plastic plate, steel plate cylinder.
2. freezing wells with high strength RC new steel plate shaft wall structure according to claim 1, it is characterised in that the steel plate barrel thickness is
10mm, 16mm, 20mm, 25mm or 35mm.
3. freezing wells with high strength RC new steel plate shaft wall structure according to claim 1, it is characterised in that the steel plate cylinder is by each circular arc
Shape steel plate is welded, and the circular arc steel plate outside is welded with anchor clamp, and the anchor clamp is wide by 80 × long 800mm × thickness by specification
The band steel bending machining of degree 20mm is formed.
4. freezing wells with high strength RC new steel plate shaft wall structure according to claim 1, it is characterised in that the plastic plate is double-deck
Polyethylene panel.
5. freezing wells with high strength RC new steel plate shaft wall structure according to claim 1, it is characterised in that the bar-mat reinforcement includes ring
The ring muscle of setting and longitudinally disposed vertical muscle.
6. freezing wells with high strength RC new steel plate shaft wall structure according to claim 5, it is characterised in that the ring muscle is a diameter of 22～
32mm, a diameter of 20～28mm of the vertical muscle, the adjacent ring muscle spacing and the adjacent longitudinal bar spacing be 200～
300mm。
7. freezing wells with high strength RC new steel plate shaft wall structure according to claim 1, it is characterised in that the strength grade of concrete
Using C80～C90.
8. freezing wells with high strength RC new steel plate shaft wall structure according to claim 1, it is characterised in that the steel plate cylinder is provided with many
Anticorrosion coat.
9. freezing wells with high strength RC new steel plate shaft wall structure according to claim 8, it is characterised in that the multiple-anticorrosion coating bag
Include：The steel plate cylinder surface reaches Sa2.5 levels using blasting treatment；Subbing adopts epoxy zinc rich primer；Intermediate layer coating
Using epoxy micaceous iron intermediate coat；Investment precoat adopts epoxy finish.
10. freezing wells with high strength RC new steel plate shaft wall structure according to claim 9, it is characterised in that apply in the multiple-anticorrosion
In layer, subbing coating layer thickness is 60 μm；Intermediate layer coating coating layer thickness is 60 μm；Investment precoat coating layer thickness is 80 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620846100.0U CN206111181U (en) | 2016-08-05 | 2016-08-05 | Freeze novel steel sheet wall of a well structure of well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620846100.0U CN206111181U (en) | 2016-08-05 | 2016-08-05 | Freeze novel steel sheet wall of a well structure of well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111181U true CN206111181U (en) | 2017-04-19 |
Family
ID=58512270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620846100.0U Expired - Fee Related CN206111181U (en) | 2016-08-05 | 2016-08-05 | Freeze novel steel sheet wall of a well structure of well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111181U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121658A (en) * | 2016-08-05 | 2016-11-16 | 煤炭工业合肥设计研究院 | Freeze-wellboring pit shaft borehole wall supporting construction and construction method thereof |
| CN108412499A (en) * | 2018-03-11 | 2018-08-17 | 吕琳 | A kind of vertical reparation shaft wall structure |
| CN108775241A (en) * | 2018-05-23 | 2018-11-09 | 北京中煤矿山工程有限公司 | Enable to slurries equally distributed filling process between freezing shaft inside and outside wall |
| CN109723087A (en) * | 2018-12-26 | 2019-05-07 | 中国矿业大学 | A kind of double-layer wall of well and construction technique of outer wall assembly steel member |
-
2016
- 2016-08-05 CN CN201620846100.0U patent/CN206111181U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121658A (en) * | 2016-08-05 | 2016-11-16 | 煤炭工业合肥设计研究院 | Freeze-wellboring pit shaft borehole wall supporting construction and construction method thereof |
| CN106121658B (en) * | 2016-08-05 | 2020-03-27 | 煤炭工业合肥设计研究院 | Freezing method sinking shaft well wall supporting structure and construction method thereof |
| CN108412499A (en) * | 2018-03-11 | 2018-08-17 | 吕琳 | A kind of vertical reparation shaft wall structure |
| CN108775241A (en) * | 2018-05-23 | 2018-11-09 | 北京中煤矿山工程有限公司 | Enable to slurries equally distributed filling process between freezing shaft inside and outside wall |
| CN109723087A (en) * | 2018-12-26 | 2019-05-07 | 中国矿业大学 | A kind of double-layer wall of well and construction technique of outer wall assembly steel member |
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| 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: 20170419 Termination date: 20190805 |
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| CF01 | Termination of patent right due to non-payment of annual fee |