CN203515614U - Steel tube concrete support pressure transfer component - Google Patents
Steel tube concrete support pressure transfer component Download PDFInfo
- Publication number
- CN203515614U CN203515614U CN201320619744.2U CN201320619744U CN203515614U CN 203515614 U CN203515614 U CN 203515614U CN 201320619744 U CN201320619744 U CN 201320619744U CN 203515614 U CN203515614 U CN 203515614U
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- CN
- China
- Prior art keywords
- pressure transfer
- concrete
- steel tube
- pvc plastic
- steel
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- Expired - Fee Related
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a steel tube concrete support pressure transfer component which comprises a sandglass-shaped pressure transfer body and a PVC plastic tube. The sandglass-shaped pressure transfer body is made of rolled steel and is hollow, a through hole is reserved in the center of the sandglass-shaped pressure transfer body, and the PVC plastic tube is installed inside the through hole. The sandglass-shaped pressure transfer body is connected with steel tube concrete components through a sleeve. When bearing the excessively-large load, a steel tube concrete support starts to conduct pressure transfer deformation, and resistance is increased gradually along with the deformation amount. During concrete pumping, concrete is conveyed to each steel tube concrete component through the PVC plastic tube, and the smooth concrete pumping is ensured through the PVC plastic tube. The steel tube concrete support pressure transfer component is reasonable in structural design, easy to install, low in cost and capable of well solving the problems that in the deep high-stress roadway support engineering, the rigidity of the steel tube concrete support is too large, the pressure transfer deformation capacity is poor, and the support effect cannot be brought into effective play.
Description
Technical field
The utility model relates to mine timbering, various construction of tunnel supportings steel pipe concrete bracket used, especially relates to a kind of steel pipe concrete bracket and allows pressure member.
Background technology
Steel pipe concrete bracket is to be shaped by empty steel tube bending, and the combined member that inner filling concrete forms has high-strength supporting capacity and non-deformability.The in the situation that of identical steel using amount, the supporting capacity of steel pipe concrete bracket can reach traditional the more than 3 times of U-shaped steel contractibility frame, and relatively makes simple.In deep tunnel supporting, adopting concrete filled steel tube as timbering material, can give full play to the high enabling capabilities of concrete filled steel tube, is a kind of effective way that improves rack bearing power.But the rigidity of steel pipe concrete bracket is large, allow compressive strain ability, in the roadway with large deformation support engineering of deep, because roadway deformation is fast, it is fast to press, cause the steel pipe concrete bracket will unstable failure before its supporting effect is brought into play completely, this be very disadvantageous to the long-term stability of deep tunnel and safe handling.
Summary of the invention
The purpose of this utility model is, for allowing of existing steel pipe concrete bracket, press technical deficiency, provide a kind of steel pipe concrete bracket allow pressure member, thereby can effectively solve the problem that steel pipe concrete bracket can not effectively be brought into play by compressive strain ability, supporting effect.
Target of the present utility model is achieved through the following technical solutions.
Steel pipe concrete bracket allows a pressure member, comprises that hourglass shape allows laminate, PVC plastic pipe.Wherein hourglass shape allows the laminate be to be made by steel, and inside is hollow, and through hole is left at center, and PVC plastic pipe is installed in through hole, and the diameter of through hole and PVC plastic pipe match.Hourglass shape allows the length of laminate according to determining according to the degree of roadway deformation, by steel, made, hourglass shape allows the maximum gauge of laminate equal concrete filled steel tube outer wall of steel pipe diameter, can make so described steel pipe concrete bracket allow and press member to be just stuck between two sections of adjacent concrete filled steel tubular members.Hourglass shape allows laminate allow compressive strain when excessive steel pipe concrete bracket is stressed; During concrete pumping, through PVC plastic pipe, be delivered to each section of concrete filled steel tubular member, PVC plastic pipe has guaranteed the smooth pumping of concrete.Described concrete filled steel tube allows presses member to be connected by sleeve pipe with concrete filled steel tubular member.
The press reason that allows of the present utility model is: when steel pipe concrete bracket bearing load is excessive, hourglass shape allows laminate start to allow compressive strain, and the increase along with deflection, hourglass shape allows presses the drag of member to increase gradually, allow the compressive strain later stage, rate of strain is slack-off, and steel pipe concrete bracket changes " allowing " into by " allowing " and " resists " combination.Allowing in pressure process, surrouding rock stress has obtained release, has avoided the too early unstability of steel pipe concrete bracket, the supporting effect of support be effectively played.
The concrete filled steel tube that the utility model provides allow press member reasonable in design, install simple, can solve well in the high stress tunnel support engineering of deep steel pipe concrete bracket rigidity excessive, allow compressive strain ability, supporting effect can not get the effectively problem of performance.
Accompanying drawing explanation
Fig. 1 is integral installation structure chart of the present utility model.
Fig. 2 is stereogram of the present utility model.
Marginal data: 1-hourglass shape allows laminate, 2-PVC plastic pipe, 3-concrete filled steel tubular member, 4-concrete, 5-sleeve pipe.
The specific embodiment
Content elaborates to the specific embodiment of the present utility model by reference to the accompanying drawings below.
As shown in the figure, the utility model provides a kind of concrete filled steel tube allow pressure member, comprise that hourglass shape allows laminate 1, PVC plastic pipe 2, wherein hourglass shape allows laminate 1 be made by steel, inner hollow, through hole is left in center, and PVC plastic pipe 2 is installed in through hole, and the diameter of the diameter of through hole and PVC plastic pipe 2 matches.Hourglass shape allows the length of laminate 1 determine according to the deformation extent in tunnel, hourglass shape allows the maximum gauge of laminate 1 equal the outer diameter of concrete filled steel tubular member 3, and described like this steel pipe concrete bracket allows presses member can just be stuck between two sections of adjacent concrete filled steel tubular members 3.Hourglass shape allows laminate 1 when steel pipe concrete bracket bearing load is excessive, allow compressive strain; During concrete 4 pumping, through PVC plastic pipe 2, be delivered to each section of concrete filled steel tubular member, PVC plastic pipe has guaranteed the smooth pumping of concrete 4.
During installation, described concrete filled steel tube is allowed and presses member to be arranged on the adjacent of two sections of concrete filled steel tubular members 3, put sleeve pipe 5, all concrete filled steel tubular members 3 are in turn connected into according to the method described above as integral support, and be fixed on the tunnel wall for the treatment of supporting, then pumping of concrete 4, and concrete 4 is pumped to each section of concrete filled steel tubular member of steel pipe concrete bracket through plastic pipes, and the complete and maintenance of pumping can complete installation.
Claims (2)
1. steel pipe concrete bracket allows a pressure member, comprises that hourglass shape allows laminate, PVC plastic pipe, it is characterized in that described hourglass shape allows the laminate be to be made by steel, inside is hollow, through hole is left at center, and PVC plastic pipe is installed in through hole, and the diameter of through hole and PVC plastic pipe match.
2. steel pipe concrete bracket according to claim 1 allows pressure member, it is characterized in that hourglass shape allows the length of laminate determine according to the deformation extent in tunnel, hourglass shape allows the maximum gauge of laminate equal the diameter of concrete filled steel tube outer wall of steel pipe, steel pipe concrete bracket is allowed and press member to be just stuck between two sections of adjacent concrete filled steel tubular members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320619744.2U CN203515614U (en) | 2013-10-09 | 2013-10-09 | Steel tube concrete support pressure transfer component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320619744.2U CN203515614U (en) | 2013-10-09 | 2013-10-09 | Steel tube concrete support pressure transfer component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515614U true CN203515614U (en) | 2014-04-02 |
Family
ID=50374559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320619744.2U Expired - Fee Related CN203515614U (en) | 2013-10-09 | 2013-10-09 | Steel tube concrete support pressure transfer component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515614U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485804A (en) * | 2013-10-09 | 2014-01-01 | 山东科技大学 | Concrete-filled steel tube support pressure-transfer component and installation method thereof |
| CN103924992A (en) * | 2014-04-15 | 2014-07-16 | 山东科技大学 | Concrete-filled steel tube support yielding device and utilization method thereof |
-
2013
- 2013-10-09 CN CN201320619744.2U patent/CN203515614U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485804A (en) * | 2013-10-09 | 2014-01-01 | 山东科技大学 | Concrete-filled steel tube support pressure-transfer component and installation method thereof |
| CN103924992A (en) * | 2014-04-15 | 2014-07-16 | 山东科技大学 | Concrete-filled steel tube support yielding device and utilization method thereof |
| CN103924992B (en) * | 2014-04-15 | 2018-02-06 | 山东科技大学 | Steel pipe concrete bracket is by pressure device and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20141009 |
|
| EXPY | Termination of patent right or utility model |