CN219840667U - Steel pipe concrete support lets pressure equipment and puts - Google Patents
Steel pipe concrete support lets pressure equipment and puts Download PDFInfo
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- CN219840667U CN219840667U CN202320581553.5U CN202320581553U CN219840667U CN 219840667 U CN219840667 U CN 219840667U CN 202320581553 U CN202320581553 U CN 202320581553U CN 219840667 U CN219840667 U CN 219840667U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 123
- 239000010959 steel Substances 0.000 title claims abstract description 123
- 238000005266 casting Methods 0.000 claims abstract description 80
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 9
- 230000001965 increasing effect Effects 0.000 abstract description 18
- 230000008093 supporting effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002633 protecting effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a yielding device of a concrete filled steel tube support, and relates to the field of underground engineering support. The steel tube concrete support lets pressure equipment device, including multiunit steel ring, multiunit pass through the connecting rod interconnect between the steel ring, the steel ring comprises many connection steel pipes, every two equal fixedly connected with multistage lets pressure equipment subassembly between the connection steel pipe, multistage lets pressure equipment subassembly includes that first lets the casting die, second lets the casting die, and third lets the casting die; the first pressure-relieving piece is fixedly connected between every two adjacent connecting steel pipes; the utility model can lead the support to continuously and progressively carry out yielding deformation on the premise of having enough bearing capacity through the multistage yielding assembly, gradually increases resistance, realizes the combination of yielding and resistance increasing, and gradually yields the support, so that the bearing capacity of the support is gradually enhanced, the stable bearing capacity of the steel pipe concrete support is ensured, and the supporting effect on underground engineering is effectively ensured.
Description
Technical Field
The utility model belongs to the technical field of underground engineering support, and particularly relates to a yielding device of a concrete filled steel tube support.
Background
When a tunnel or the like is constructed, in order to protect the shape of the underground engineering such as the tunnel or the like and prevent accidents such as stratum collapse or the like, a concrete filled steel tube bracket system is used as a support for the underground engineering such as the tunnel or the like and prevent the accidents such as collapse or the like.
The current steel pipe concrete support system comprises a plurality of rings of steel pipe concrete supports and a yielding device, wherein the shape of each ring of steel pipe concrete support in the plurality of rings of steel pipe concrete supports is identical to the shape of the cross section of a tunnel and is fixed on the inner wall of the tunnel at equal intervals, each ring of steel pipe concrete support comprises a plurality of steel pipes, concrete is poured into each steel pipe, the yielding device is arranged between every two steel pipes and comprises two connecting sleeves and a yielding member, the yielding member is arranged between the two connecting sleeves, the two connecting sleeves are respectively connected with one steel pipe, when the steel pipes are stressed, the two adjacent steel pipes extrude the yielding member, so that the yielding member deforms to release the pressure born by the two steel pipes.
In the prior art, the application number is CN201410150213.2, the name is a concrete filled steel tube support yielding device and a using method thereof, and the concrete filled steel tube support yielding device and the using method thereof are disclosed. The steel pipe concrete support lets the pressure equipment to put and includes steel pipe concrete member, hourglass shape lets the pressure component and connecting sleeve, hourglass shape lets the pressure component to be located between two adjacent steel pipe concrete members, connecting sleeve locates at hourglass shape lets the pressure component outside and lets the pressure component and steel pipe concrete member link together; the upper end face and the lower end face of the hourglass-shaped yielding member are respectively provided with a plurality of anchoring steel bars, and the anchoring steel bars are connected to the hourglass-shaped yielding member and extend into the concrete filled steel tube member; a first grouting hole is formed in the side face of the hourglass-shaped yielding member; a pair of relative displacement sensors are arranged in the hourglass-shaped yielding member; a second grouting hole and an exhaust hole are formed in the connecting sleeve; the data transmission line of the relative displacement sensor sequentially passes through the first grouting hole and the exhaust hole and then is connected to the data acquisition device.
The above patent can exert a yielding effect on a concrete filled steel tube support, but cannot exert a progressive increasing effect on the resistance of the concrete filled steel tube support, and as the load pressure of the stratum on the concrete filled steel tube support is continuously increased, the bearing capacity of the concrete filled steel tube support may be smaller than the pressure of the stratum, thereby causing the reduction of the supporting force on the underground engineering.
Disclosure of Invention
The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a steel pipe concrete support yielding device which can overcome the problems or at least partially solve the problems.
In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that: the steel tube concrete support lets pressure equipment device, including multiunit steel ring, multiunit pass through the connecting rod interconnect between the steel ring, the steel ring comprises many connection steel pipes, every two equal fixedly connected with multistage lets pressure equipment subassembly between the connection steel pipe, multistage lets pressure equipment subassembly includes that first lets the casting die, second lets the casting die, and third lets the casting die; the first pressure-relieving piece is fixedly connected between every two adjacent connecting steel pipes; the second pressure let piece is fixedly connected in the first pressure let piece; the third lets the casting die fixed connection let the casting die in the second, wherein, first casting die, second let the casting die and the third lets adjacent one side of casting die fixed connection in proper order, first casting die, second let casting die and the third let one side that the casting die was fixed each other set up at every two connecting steel pipes be located the connection steel pipe position that is close to the downside, first casting die, second let casting die and the third let and form three and let the pressure cavity between the casting die.
For be convenient for staff audio-visual to let the casting die first, the second lets the casting die and the third lets the deformation volume of casting die look over, further, first let casting die, the second let casting die and the third let casting die sliding connection have the displacement measurement pole, the one end that the displacement measurement pole is close to the scale mark runs through in first letting the casting die, the one end that the scale mark was kept away from to the displacement measurement pole is with first inner wall fixed connection who lets the casting die.
In order to facilitate the concrete to pass through the first pressure let piece, the second pressure let piece and the third pressure let the pressure let piece pour into in all connecting steel pipes, further, first pressure let piece, the second pressure let piece and the third pressure let and alternate in the pressure let have logical thick liquid pipe, the both ends of logical thick liquid pipe are linked together with adjacent connecting steel pipe respectively.
In order to facilitate the formation of three pressure-yielding cavities among the first pressure-yielding part, the second pressure-yielding part and the third pressure-yielding part, the concrete is filled, and further, the positions of the first pressure-yielding part, the second pressure-yielding part and the third pressure-yielding part, which are close to the two sides and are connected with the steel pipes, are provided with mutually-communicated slurry-yielding openings.
In order to be convenient for only pour into concrete to one of them connection steel pipe, concrete alright pour into other connection steel pipes into through hollow connecting rod in, still further, lie in the top the symmetry has seted up the through-hole on the connection steel pipe, be close to the connecting rod of through-hole position is hollow setting, and both ends are put through with the through-hole of adjacent connection steel pipe respectively.
In order to further improve the supporting and protecting effects of the steel pipe concrete support on underground engineering such as tunnels, coal mine tunnels or underground petroleum storage caverns, the first pressure-relieving piece, the second pressure-relieving piece and the third pressure-relieving piece are all in hollow spherical shapes.
After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects: compared with the prior art, the utility model can be used as a joint to enable a plurality of connecting steel pipes to form the steel pipe concrete support, and can enable the support to continuously and progressively carry out yielding deformation on the premise of having enough bearing capacity through the multistage yielding component, the resistance gradually increases, the combination of yielding and resistance increasing is realized, the gradient yielding is realized, the bearing capacity of the support is gradually enhanced, the stable bearing capacity of the steel pipe concrete support is ensured, and the supporting effect on underground engineering is effectively ensured.
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.
In the drawings:
fig. 1 is a front perspective schematic view of a yielding device of a concrete filled steel tube bracket according to the present utility model;
fig. 2 is a schematic structural diagram of a yielding device for a concrete filled steel tube bracket according to the present utility model;
FIG. 3 is a schematic diagram II of a yielding device of a concrete filled steel tube bracket according to the present utility model;
fig. 4 is a schematic top view of a yielding device for a concrete filled steel tube bracket according to the present utility model.
In the figure: 1. connecting steel pipes; 101. a through hole; 2. a first hold-down member; 3. a second hold-down member; 4. a third hold-down member; 5. a displacement measuring rod; 6. a connecting rod; 7. a slurry tube; 8. and a slurry port.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.
Example 1:
referring to fig. 1-4, a steel pipe concrete support lets pressure equipment device, including multiunit steel ring, connect each other through connecting rod 6 between the multiunit steel ring, the steel ring is by the multiunit steel pipe 1 that connects, every two connect between steel pipe 1 fixedly connected with multistage let pressure equipment subassembly, multistage let pressure equipment subassembly include let the casting die 2, let the casting die 3 and let the casting die 4 by the third with the casting die; the first pressure-relieving piece 2 is fixedly connected between every two adjacent connecting steel pipes 1; the second pressure let-down member 3 is fixedly connected in the first pressure let-down member 2; and the third yielding part 4 is fixedly connected in the second yielding part 3, wherein the adjacent sides of the first yielding part 2, the second yielding part 3 and the third yielding part 4 are sequentially and fixedly connected, one sides of the first yielding part 2, the second yielding part 3 and the third yielding part 4, which are mutually fixed, are arranged at the positions of every two connecting steel pipes 1, which are close to the lower sides, of the connecting steel pipes 1, and three yielding cavities are formed among the first yielding part 2, the second yielding part 3 and the third yielding part 4.
After the underground engineering such as a tunnel, a coal mine tunnel or an underground petroleum storage cave is excavated, the steel pipe concrete support can be installed in the underground engineering, the underground engineering has a supporting and protecting effect, when a stratum moves downwards, the bearing load of the steel pipe concrete support can be increased, then the first yielding part 2 starts to deform and yielding, along with the increase of pressure, the yielding cavity between the first yielding part 2 and the second yielding part 3 can be reduced, after the first yielding part 2 is attached to the second yielding part 3, the first yielding and increasing resistance of the steel pipe concrete support can be realized, the second yielding part 3 can start to deform and yielding along with the continuous increase of the pressure born by the steel pipe concrete support, the yielding cavity between the second yielding part 3 and the third yielding part 4 can be reduced, when the pressure born by the steel pipe concrete support is increased again, the pressure born by the steel pipe concrete support can be increased again, the gradient can be realized, the gradient can be increased gradually, the bearing capacity of the steel pipe concrete support can be increased gradually, and the gradient can be realized, the gradient can be increased gradually, and the bearing capacity of the steel pipe concrete support can be increased gradually, and the bearing capacity of the steel pipe support can be increased gradually, and the gradient can be increased gradually, and the bearing capacity of the steel pipe support can be increased gradually and the gradient can be increased gradually.
Example 2:
referring to fig. 1 to 4, a concrete filled steel tube support yielding apparatus is substantially the same as that of example 1, and further comprises: the first casting die 2 that lets, the second lets casting die 3, and the third let casting die 4 sliding connection have displacement measuring rod 5, displacement measuring rod 5 is close to the one end that the scale mark runs through in the first casting die 2 that lets, displacement measuring rod 5 keeps away from the one end of scale mark and the first inner wall fixed connection that lets casting die 2, through displacement measuring rod 5's setting, when first casting die 2, the second lets casting die 3, and the third let casting die 4 let the press deformation, displacement measuring rod 5 can move in to the first casting die 2 that lets, then staff alright be audio-visual to first casting die 2, the second lets casting die 3, and the third let casting die 4's deformation volume look over, so that in time make corresponding measure.
Example 3:
referring to fig. 1 to 4, a concrete filled steel tube support yielding apparatus is substantially the same as that of example 1, and further comprises: the first lets the casting die 2, the second lets the casting die 3, and the third let the casting die 4 in interlude have logical thick liquid pipe 7, let the both ends of thick liquid pipe 7 be linked together with adjacent connecting steel pipe 1 respectively, let casting die 2, the second let casting die 3, and the third let casting die 4 in interlude logical thick liquid pipe 7 to make the both ends of logical thick liquid pipe 7 be linked together with adjacent connecting steel pipe 1 respectively, when pouring concrete into connecting steel pipe 1, can let the concrete pass first let casting die 2, the second let casting die 3, and the third let casting die 4 pour into in all connecting steel pipe 1, improve grouting efficiency.
Example 4:
referring to fig. 1 to 4, a concrete filled steel tube support yielding apparatus is substantially the same as that of example 1, and further comprises: the positions of the first letting-in piece 2, the second letting-in piece 3 and the third letting-in piece 4, which are close to the two sides and are connected with the steel pipe 1, are provided with mutually communicated slurry inlets 8, and the slurry inlets 8 are respectively formed on the first letting-in piece 2, the second letting-in piece 3 and the third letting-in piece 4, so that when concrete is conveyed into the connected steel pipe 1, the three letting-in cavities formed among the first letting-in piece 2, the second letting-in piece 3 and the third letting-in piece 4 are filled with concrete, and the bending resistance of the steel pipe concrete support can be guaranteed when the letting-in device is subjected to pressure.
Example 5:
referring to fig. 1 to 4, a concrete filled steel tube support yielding apparatus is substantially the same as that of embodiment 3 or 4, and further: through holes 101 are symmetrically formed in the connecting steel pipes 1 positioned above, connecting rods 6 close to the through holes 101 are arranged in a hollow mode, two ends of each connecting rod are respectively communicated with the through holes 101 of the adjacent connecting steel pipes 1, and when concrete is poured into the connecting steel pipes 1, as a plurality of groups of steel rings are connected in series through the hollow connecting rods 6, concrete can be poured into one connecting steel pipe 1 only, concrete can be poured into the other connecting steel pipes 1 through the hollow connecting rods 6, each connecting steel pipe 1 does not need to be poured in sequence, and the efficiency of concrete pouring is improved;
the first casting die 2 that lets, the second let casting die 3, and the third let casting die 4 all be hollow globular setting, let casting die 2, the second let casting die 3, and the third let casting die 4 all be hollow globular design through making first, when first let casting die 2, the second let casting die 3, and the third let casting die 4 receive the pressure of stratum, can improve first casting die 2, the second let casting die 3, and the third let casting die 4 let the compressive capacity after letting the pressure to further improve the support protection effect of steel pipe concrete support to underground works such as tunnel, colliery tunnel or underground petroleum storage cave.
According to the utility model, through the arrangement of the multistage yielding components, a plurality of connecting steel pipes 1 can be used as connectors to form the steel pipe concrete support, and the support can continuously and progressively deform in a yielding way on the premise of having enough bearing capacity through the multistage yielding components, the resistance is gradually increased, the combination of yielding and resistance increasing is realized, the gradient yielding is realized, the bearing capacity of the support is gradually enhanced, the stable bearing capacity of the steel pipe concrete support is ensured, and the supporting effect on underground engineering is effectively ensured.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not to be construed as limiting the utility model, but is to be construed as limiting the utility model to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the utility model, may be made by those skilled in the art without departing from the scope of the utility model.
Claims (6)
1. The utility model provides a steel pipe concrete support lets pressure equipment device, includes multiunit steel ring, multiunit pass through connecting rod (6) interconnect between the steel ring, the steel ring comprises many with connecting steel pipe (1), every two equal fixedly connected with multistage lets pressure subassembly between connecting steel pipe (1), its characterized in that:
the multi-section yielding assembly comprises a first yielding piece (2), a second yielding piece (3) and a third yielding piece (4);
the first pressure-relieving piece (2) is fixedly connected between every two adjacent connecting steel pipes (1);
the second yielding piece (3) is fixedly connected in the first yielding piece (2);
the third pressure let-down part (4) is fixedly connected in the second pressure let-down part (3),
the first side of letting casting die (2), second let casting die (3) and third let casting die (4) adjacent one side fixed connection in proper order, first side that lets casting die (2), second let casting die (3) and third let casting die (4) mutually fixed sets up in every two connection steel pipes (1) are located connection steel pipe (1) position near the downside, first let casting die (2), second let casting die (3) and third let and form three between casting die (4) and let the pressure cavity.
2. A concrete filled steel tube support yielding apparatus as defined in claim 1, wherein: the first pressure piece (2), the second pressure piece (3) and the third pressure piece (4) of letting are connected with displacement measuring rod (5) in a sliding mode, one end, close to the scale mark, of the displacement measuring rod (5) penetrates through the first pressure piece (2), and one end, far away from the scale mark, of the displacement measuring rod (5) is fixedly connected with the inner wall of the first pressure piece (2).
3. A concrete filled steel tube support yielding apparatus as defined in claim 1, wherein: the first let casting die (2), the second let casting die (3) and the third let casting die (4) in interlude have logical thick liquid pipe (7), the both ends of logical thick liquid pipe (7) are linked together with adjacent connecting steel pipe (1) respectively.
4. A concrete filled steel tube support yielding apparatus as defined in claim 1, wherein: the first let casting die (2), the second let casting die (3) and the third let casting die (4) all offer the logical thick liquid mouth (8) that link up each other near both sides connection steel pipe (1) position.
5. A concrete filled steel tube bracket yielding apparatus according to any one of claims 3 and 4, wherein: the connecting steel pipes (1) positioned above are symmetrically provided with through holes (101), the connecting rods (6) close to the positions of the through holes (101) are arranged in a hollow mode, and two ends of each connecting rod are communicated with the through holes (101) of the adjacent connecting steel pipes (1).
6. A concrete filled steel tube support yielding apparatus as defined in claim 1, wherein: the first letting the casting die (2), the second letting the casting die (3), and the third letting the casting die (4) all take the form of hollow sphere setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320581553.5U CN219840667U (en) | 2023-03-23 | 2023-03-23 | Steel pipe concrete support lets pressure equipment and puts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320581553.5U CN219840667U (en) | 2023-03-23 | 2023-03-23 | Steel pipe concrete support lets pressure equipment and puts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219840667U true CN219840667U (en) | 2023-10-17 |
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ID=88297585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320581553.5U Active CN219840667U (en) | 2023-03-23 | 2023-03-23 | Steel pipe concrete support lets pressure equipment and puts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219840667U (en) |
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2023
- 2023-03-23 CN CN202320581553.5U patent/CN219840667U/en active Active
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