CN209398435U - A kind of contracting formula steel arch-shelf for bump tunnel - Google Patents
A kind of contracting formula steel arch-shelf for bump tunnel Download PDFInfo
- Publication number
- CN209398435U CN209398435U CN201821695430.XU CN201821695430U CN209398435U CN 209398435 U CN209398435 U CN 209398435U CN 201821695430 U CN201821695430 U CN 201821695430U CN 209398435 U CN209398435 U CN 209398435U
- Authority
- CN
- China
- Prior art keywords
- contracting formula
- steel
- rubber cushion
- cushion blocks
- slip casting
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- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 72
- 239000010959 steel Substances 0.000 title claims abstract description 72
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000011435 rock Substances 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 17
- 238000007569 slipcasting Methods 0.000 claims description 27
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000011083 cement mortar Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009527 percussion Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a kind of contracting formula steel arch-shelfs for bump tunnel, including fashioned iron main structure (1), the fashioned iron main structure (1) is made by I-steel or H profile steel, fashioned iron main structure is at least divided into three sections, between every section by can contracting formula connection structure connection, can contracting formula connection structure include: two pieces of connecting plates (2), rubber cushion blocks (3) and connect bolt (4)；Connecting plate (2) is formed by steel plate stamping bolt hole, rubber cushion blocks (3) size and connecting plate (2) are consistent, rubber cushion blocks rush bolt hole on (3), are fixedly connected with two pieces of connecting plates (2) with rubber cushion blocks (3) by connection bolt (4).The steel arch-shelf structure of the utility model can resist certain rock burst impact, can solve existing steel arch-shelf it is generally existing allow to deform it is small, resist the disadvantages of impact capacity is poor, while steel arch-shelf internal force can be monitored, supporting parameter easy to adjustment in time.
Description
Technical field
The utility model belongs to technical field of tunnel construction, and in particular to a kind of contracting formula steel for bump tunnel
Arch.
Background technique
Rockburst Problem is often encountered when High Ground Stress Areas carries out constructing tunnel, rock burst can discharge a large amount of suddenly when occurring
Energy, simultaneous part country rock is crushed, dishes out, can be to neighbouring construction personnel's machine security if construction is mishandling
Cause biggish threat.Shaped steel arch strong supporting is generallyd use in work progress in rock burst tunnel at present to cause to reduce rock burst
Influence, but some constructing tunnels practice have shown that, the big energy discharged suddenly in process of rock-burst can to steel arch-shelf formed wink
Between impact, cause steel arch-shelf localized crush to distort, and other positions of steel arch-shelf are intact, while discovery arch encloses behind after changing arch
Batholith sheet is complete, the wall rock destabilization of no large area.At present in tunnel common shaped steel arch mainly use I-steel process and
At rigidity is larger, substantially without the leeway for allowing to deform after by vertical percussion, thus is easy to cause part
Distortion destroys, while internal force suffered by steel arch-shelf is indefinite.
Utility model content
For above situation, to avoid existing tunnel steel arch-shelf defect, the purpose of the utility model is to provide a kind of novel
Convenient for resist rock burst impact steel arch-shelf structure, can solve existing steel arch-shelf it is generally existing allow to deform it is small, resist impact
The disadvantages of ability is poor, while steel arch-shelf internal force can be monitored, supporting parameter easy to adjustment in time.
A kind of contracting formula steel arch-shelf for bump tunnel, including fashioned iron main structure 1, the fashioned iron main structure
1 is made by I-steel or H profile steel, fashioned iron main structure be at least divided between three sections, adjacent two sections by can contracting formula connect
Binding structure connection, can contracting formula connection structure include: two pieces of connecting plates 2, rubber cushion blocks 3 and connection bolt 4；Connecting plate 2 is by steel plate
It rushes bolt hole to form, rubber cushion blocks 3 are consistent with 2 size of connecting plate, bolt hole rushed on rubber cushion blocks 3, by connecting bolt 4 for two
Block connecting plate 2 is fixedly connected with rubber cushion blocks 3, and rubber cushion blocks 3 are clamped among two pieces of connecting plates 2.
The contracting formula steel arch-shelf for bump tunnel, can contracting formula connection structure further include pressure gauge 5, even
Pressure gauge 5 is installed for measuring steel arch-shelf pressure between fishplate bar 2 and rubber cushion blocks 3.
The contracting formula steel arch-shelf for bump tunnel, can contracting formula connection structure further include limit steel cylinder 6, note
Starch ductule 7 and constraint reinforcing bar 8；Limit steel cylinder 6 be cylindrical barrel structure, limit steel cylinder 6 by connecting plate 2, rubber cushion blocks 3,
Connection bolt 4, pressure gauge 5 are enclosed in the inside, act to limit generation alternate displacement at connection structure, limit steel cylinder 6 and type
It is welded between steel main structure 1, it is small that a slip casting is respectively arranged in the cylindrical barrel structure upper bottom surface two sides of limit steel cylinder 6
Conduit 7 is reinforced, and one end of every slip casting ductule 7 is squeezed into inside country rock, and the other end of every slip casting ductule 7 passes through about
Beam reinforcing bar 8 is fixedly connected.
The contracting formula steel arch-shelf for bump tunnel, in the cylindrical barrel structure bottom of limit steel cylinder 6
Face two sides are also provided with two slip casting ductules 7 and are reinforced, and one end of every slip casting ductule 7 is squeezed into inside country rock, every note
The other end of slurry ductule 7 is fixedly connected by constraining reinforcing bar 8.
The contracting formula steel arch-shelf for bump tunnel injects cement mortar inside slip casting ductule 7, makes to infuse
Slurry ductule connect stronger with country rock.
The contracting formula steel arch-shelf for bump tunnel, 7 tube wall of slip casting ductule are evenly distributed with through-hole.
Using the technical solution of the utility model, steel arch-shelf structure can resist certain rock burst impact, can solve existing steel
Arch it is generally existing allow to deform it is small, resist the disadvantages of impact capacity is poor, while steel arch-shelf internal force can be monitored, convenient for timely
Adjust supporting parameter.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model embodiment 1；
Fig. 2 is 1 structure partial enlarged drawing of the utility model embodiment；
Fig. 3 is the schematic diagram of the utility model embodiment 2；
Fig. 4 is the schematic diagram (can contracting formula connection structure front view) of the utility model embodiment 3；
Fig. 5 is the schematic diagram (can contracting formula connection structure top view) of the utility model embodiment 3；
Specific embodiment
Below in conjunction with specific embodiment, the utility model is described in detail.
Embodiment 1
With reference to Fig. 1 and Fig. 2, a kind of contracting formula steel arch-shelf for bump tunnel, including fashioned iron main structure 1, institute
Fashioned iron main structure 1 is stated to be made by I-steel or H profile steel, fashioned iron main structure is at least divided into three sections, adjacent two sections it
Between by can contracting formula connection structure connection, can contracting formula connection structure include: two pieces of connecting plates 2, rubber cushion blocks 3, connection bolt 4；
Connecting plate 2 is formed by steel plate stamping bolt hole, and rubber cushion blocks 3 are consistent with 2 size of connecting plate, is rushed bolt hole on rubber cushion blocks 3, is passed through
Two pieces of connecting plates 2 are fixedly connected by connection bolt 4 with rubber cushion blocks 3, and rubber cushion blocks 3 are clamped among two pieces of connecting plates 2, type
Steel main structure section and section connecting pin link together with corresponding connecting plate 2 respectively.Due to increasing deformable rubber pad
Block 3 can allow for steel arch-shelf that certain deformation occurs, greatly reduce percussion, being capable of effective protection fashioned iron main structure.
Embodiment 2
Another embodiment, with reference to Fig. 3, can contracting formula connection structure further include pressure gauge 5, in connecting plate 2 and rubber pad
Pressure gauge 5 is installed for measuring steel arch-shelf pressure between block 3, each connection structure position of steel arch-shelf can be grasped in real time
Stress condition, timely adjusting parameter.
Embodiment 3
Another embodiment, with reference to Fig. 4 and Fig. 5, can contracting formula connection structure further include limit steel cylinder 6, slip casting ductule 7
With constraint reinforcing bar 8.Limit steel cylinder 6 be cylindrical barrel structure, limit steel cylinder 6 by connecting plate 2, rubber cushion blocks 3, connection bolt 4,
Pressure gauge 5 is enclosed in the inside, acts to limit generation alternate displacement at connection structure, limit steel cylinder 6 and fashioned iron main structure
It is welded between 1, a piece slip casting ductule 7 is respectively set in the cylindrical barrel structure upper bottom surface two sides of limit steel cylinder 6 and is carried out
It reinforces, one end of every slip casting ductule 7 is squeezed into inside country rock, and the other end of every slip casting ductule 7 passes through constraint reinforcing bar 8
It is fixedly connected.
Two slip casting ductules 7 also can be set in the cylindrical barrel structure bottom surface two sides of limit steel cylinder 6 to be added
Gu one end of each slip casting ductule 7 is squeezed into inside country rock, the other end of each slip casting ductule 7 passes through constraint reinforcing bar 8
It is fixedly connected, fixed effect can be more preferable in this way.
By injecting cement mortar inside slip casting ductule 7, country rock can be reinforced, connect slip casting ductule more with country rock
Add securely, plays the role of fixed limit steel cylinder 6 and fashioned iron main structure, prevent fashioned iron main structure unstable failure；
7 tube wall of slip casting ductule is evenly distributed with through-hole, and cement mortar is goed deep into country rock playing by through-hole preferably reinforces and consolidate
It is set for using.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (6)
1. a kind of contracting formula steel arch-shelf for bump tunnel, which is characterized in that described including fashioned iron main structure (1)
Fashioned iron main structure (1) is made by I-steel or H profile steel, and fashioned iron main structure is at least divided into three sections, adjacent two sections it
Between by can contracting formula connection structure connection, can contracting formula connection structure include: two pieces of connecting plates (2), rubber cushion blocks (3) and connect spiral shell
Bolt (4)；Connecting plate (2) is formed by steel plate stamping bolt hole, and rubber cushion blocks (3) are consistent with connecting plate (2) size, rubber cushion blocks (3)
On rush bolt hole, two pieces of connecting plates (2) are fixedly connected with rubber cushion blocks (3) by connection bolt (4), rubber cushion blocks (3) press from both sides
It holds intermediate in two pieces of connecting plates (2).
2. the contracting formula steel arch-shelf according to claim 1 for bump tunnel, which is characterized in that can the connection of contracting formula
Structure further includes pressure gauge (5), and pressure gauge (5) are installed between connecting plate (2) and rubber cushion blocks (3) for measuring steel arch-shelf institute
By pressure.
3. the contracting formula steel arch-shelf according to claim 2 for bump tunnel, which is characterized in that can the connection of contracting formula
Structure further includes limit steel cylinder (6), slip casting ductule (7) and constraint reinforcing bar (8)；Limiting steel cylinder (6) is cylindrical barrel structure,
Connecting plate (2), rubber cushion blocks (3), connection bolt (4), pressure gauge (5) are enclosed in the inside by limit steel cylinder (6), play limitation connection
The effect that alternate displacement occurs at structure, limits and is welded between steel cylinder (6) and fashioned iron main structure (1), in limit steel cylinder
(6) cylindrical barrel structure upper bottom surface two sides are respectively arranged a slip casting ductule (7) and are reinforced, every slip casting ductule
(7) one end is squeezed into inside country rock, and the other end of every slip casting ductule (7) is fixedly connected by constraining reinforcing bar (8).
4. the contracting formula steel arch-shelf according to claim 3 for bump tunnel, which is characterized in that in limit steel cylinder
(6) cylindrical barrel structure bottom surface two sides are also provided with two slip casting ductules (7) and are reinforced, every slip casting ductule
(7) one end is squeezed into inside country rock, and the other end of every slip casting ductule (7) is fixedly connected by constraining reinforcing bar (8).
5. the contracting formula steel arch-shelf according to claim 3 or 4 for bump tunnel, which is characterized in that slip casting is small
Cement mortar is injected inside conduit (7), connect slip casting ductule with country rock stronger.
6. the contracting formula steel arch-shelf according to claim 5 for bump tunnel, which is characterized in that slip casting ductule
(7) tube wall is evenly distributed with through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821695430.XU CN209398435U (en) | 2018-10-19 | 2018-10-19 | A kind of contracting formula steel arch-shelf for bump tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821695430.XU CN209398435U (en) | 2018-10-19 | 2018-10-19 | A kind of contracting formula steel arch-shelf for bump tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209398435U true CN209398435U (en) | 2019-09-17 |
Family
ID=67878593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821695430.XU Expired - Fee Related CN209398435U (en) | 2018-10-19 | 2018-10-19 | A kind of contracting formula steel arch-shelf for bump tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209398435U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608055A (en) * | 2019-10-18 | 2019-12-24 | 中铁隧道局集团有限公司 | Plug-and-play ball-hinge type steel arch connecting component capable of achieving quantitative yielding and use method |
| CN110847939A (en) * | 2019-12-10 | 2020-02-28 | 中铁第四勘察设计院集团有限公司 | Steel arch frame joint |
-
2018
- 2018-10-19 CN CN201821695430.XU patent/CN209398435U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608055A (en) * | 2019-10-18 | 2019-12-24 | 中铁隧道局集团有限公司 | Plug-and-play ball-hinge type steel arch connecting component capable of achieving quantitative yielding and use method |
| CN110608055B (en) * | 2019-10-18 | 2020-10-20 | 中铁隧道局集团有限公司 | Plug-and-play ball-hinge type steel arch connecting component capable of achieving quantitative yielding and use method |
| CN110847939A (en) * | 2019-12-10 | 2020-02-28 | 中铁第四勘察设计院集团有限公司 | Steel arch frame joint |
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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: 20190917 |