CN220226912U - Suspension type pipe shed locating rack for tunnel inner pipe shed - Google Patents
Suspension type pipe shed locating rack for tunnel inner pipe shed Download PDFInfo
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- CN220226912U CN220226912U CN202322013138.2U CN202322013138U CN220226912U CN 220226912 U CN220226912 U CN 220226912U CN 202322013138 U CN202322013138 U CN 202322013138U CN 220226912 U CN220226912 U CN 220226912U
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- pipe shed
- positioning
- pipe
- steel frame
- shed
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- 239000000725 suspension Substances 0.000 title abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 93
- 239000010959 steel Substances 0.000 claims abstract description 93
- 230000008093 supporting effect Effects 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 3
- 238000010276 construction Methods 0.000 abstract description 32
- 239000011435 rock Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a suspension type pipe shed positioning frame for an inner pipe shed of a tunnel hole, which comprises a pipe shed supporting steel frame, a temporary dismantling steel frame, a pipe shed positioning pipe and a pipe shed sleeved in the pipe shed positioning pipe, wherein the pipe shed supporting steel frame is arranged on the pipe shed positioning pipe; the pipe shed supporting steel frames and the pipe shed positioning steel frames are respectively arranged at two sides of the temporary dismantling steel frame; a pipe shed positioning rib is arranged at the lower part of the pipe shed positioning steel frame, one end of a pipe shed positioning pipe is supported on the pipe shed supporting steel frame, and the other end of the pipe shed positioning pipe penetrates through the pipe shed positioning rib and is fixedly connected with the pipe shed positioning rib, so that a hanging pipe shed positioning frame is formed to assist in construction of the pipe shed. The utility model adopts the hanging type pipe shed positioning frame to assist the pipe shed construction, has the advantages of quick and efficient construction, simple and reliable structure and low input cost, simply limits the pipe shed construction through the U-shaped steel bar, meets the actual construction requirements of the tunnel face under relatively complex operation environments, and is easy to popularize and apply.
Description
Technical Field
The utility model relates to a suspension type pipe shed positioning frame for a tunnel inner pipe shed, and belongs to the technical field of tunnel inner pipe shed construction.
Background
In the tunnel construction process, the surrounding rock belt is possibly broken, or accidents such as tunnel face collapse, roof fall and the like occur, and at the moment, the support length of the advanced small guide pipe or the advanced anchor rod is insufficient to effectively pass through the potential fracture angle, so that the stability of the arch surrounding rock in the excavation suspension stage cannot be ensured. In order to ensure construction safety, a forepoling shed is generally selected in engineering as a forepoling measure for crossing the bad geological zone. However, the construction of conventional pipe shed studio needs to expand to dig, wastes time and energy relatively, and engineering cost is higher, and construction risk hidden danger is big, and carry out pipe shed location through the I-steel web trompil then can weaken the effective rigidity of web trompil I-steel by a wide margin, and then probably can not satisfy the requirement that pipe shed location construction or later stage pipe shed terminal atress supported.
Aiming at the related adverse effects of the simple pipe shed positioning frame formed by utilizing the I-steel web plate holes, the suspension type pipe shed positioning frame for the tunnel inner pipe shed is provided, the defects can be effectively overcome, and the research result has great practical significance.
Disclosure of Invention
In view of the above, the utility model aims to provide a suspension type pipe shed positioning frame for a tunnel inner pipe shed, which can overcome the defects in the prior art.
The utility model aims at realizing the following technical scheme:
a hanging type pipe shed positioning frame for an inner pipe shed of a tunnel hole comprises a pipe shed supporting steel frame, a temporary dismantling steel frame, a pipe shed positioning pipe and a pipe shed sleeved in the pipe shed positioning pipe; the pipe shed supporting steel frame and the pipe shed positioning steel frame are respectively arranged at the front and the rear of the temporary dismantling steel frame; the lower part of the pipe shed positioning steel frame is provided with a pipe shed positioning rib, one end of the pipe shed positioning pipe is supported on the pipe shed supporting steel frame, and the other end of the pipe shed positioning pipe penetrates through the pipe shed positioning rib and is fixedly connected with the pipe shed positioning rib.
The pipe shed supporting steel frame is erected I-steel which is closest to the face and relatively stable, and the temporary dismantling steel frame and the pipe shed positioning steel frame are sequentially arranged.
The pipe shed positioning ribs are circumferentially distributed in the range of 120 degrees of the arch part, and the distribution interval of adjacent pipe shed positioning ribs is 40-50cm.
The rear side of the pipe shed positioning steel frame is arranged on one side of the pipe shed positioning rib;
or the pipe shed positioning ribs are symmetrically arranged on two sides of the pipe shed positioning steel frame.
The pipe shed positioning rib comprises a connecting part, an extending part and an annular positioning part, wherein the connecting part is welded on the lower flange plate of the pipe shed positioning steel frame, and the size of the annular positioning part is matched with the pipe diameter of the pipe shed positioning pipe.
The length of the extension part of the pipe shed positioning rib arranged at the rear side of the pipe shed positioning steel frame is slightly longer than that of the extension part of the pipe shed positioning rib arranged at the front side of the pipe shed positioning steel frame.
The connecting part, the extension part and the annular positioning part are integrally formed by L-shaped and U-shaped structures.
The integral forming structure is formed by bending reinforcing steel bars with the diameter of more than 20 mm.
Compared with the prior art, the suspension type pipe shed positioning frame for the tunnel inner pipe shed comprises a pipe shed supporting steel frame, a temporary dismantling steel frame, a pipe shed positioning pipe and a pipe shed sleeved in the pipe shed positioning pipe; the pipe shed supporting steel frames and the pipe shed positioning steel frames are respectively arranged at two sides of the temporary dismantling steel frame; a pipe shed positioning rib is arranged at the lower part of the pipe shed positioning steel frame, one end of a pipe shed positioning pipe is supported on the pipe shed supporting steel frame, and the other end of the pipe shed positioning pipe penetrates through the pipe shed positioning rib and is fixedly connected with the pipe shed positioning rib, so that a hanging pipe shed positioning frame is formed to assist in construction of the pipe shed. The utility model has the advantages of simple structure, low input cost, convenient and efficient construction, and can effectively ensure the vertical supporting effect of the tail end of the pipe shed and improve the tunnel construction safety.
The beneficial effects of the utility model are as follows:
(1) By welding the pipe shed positioning ribs on the pipe shed positioning frame to assist in pipe shed positioning construction, compared with a construction method for opening holes on an erected arch frame web, the construction difficulty is obviously reduced, and the adverse effect that the rigidity of the arch frame is greatly reduced due to the fact that the I-steel web is opened is effectively avoided;
(2) The hanging type pipe shed positioning frame is simple and reliable in structure, high in construction convenience and short in construction period, the U-shaped steel bars are adopted to simply limit the pipe shed construction, actual construction requirements of a tunnel face in a relatively complex operation environment are met, and popularization and application are easy;
(3) The hanging type pipe shed positioning frame takes the erected I-steel as a stress foundation, can transfer the stress of the tail end of the pipe shed to the I-steel with the rigidity not reduced, and can effectively ensure the vertical supporting effect of the tail end of the pipe shed.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic side view of the present utility model;
FIG. 2 is a schematic diagram of the front structure of the present utility model;
FIG. 3 is a schematic diagram of a connection structure of a pipe shed positioning rib and a pipe shed positioning steel frame;
fig. 4 is a schematic structural view of a pipe shed positioning rib.
Detailed Description
Hereinafter, preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
In the case of example 1,
as shown in fig. 1-4, a hanging type pipe shed positioning frame for a tunnel inner pipe shed comprises a pipe shed supporting steel frame 1, a temporary dismantling steel frame 2, a pipe shed positioning steel frame 3, a pipe shed positioning rib 4, a pipe shed positioning pipe 5 and a pipe shed 6 penetrating through the pipe shed positioning pipe 5; the pipe shed supporting steel frame 1 and the pipe shed positioning steel frame 3 are respectively arranged at the front and the rear of the temporary dismantling steel frame 2; the pipe shed positioning ribs 4 are fixedly connected to the lower portion of the pipe shed positioning steel frame 3, one end of the pipe shed positioning pipe 5 is supported on the pipe shed supporting steel frame 1, and the other end of the pipe shed positioning pipe penetrates through the pipe shed positioning ribs 4 and is fixedly connected with the pipe shed positioning ribs, so that a hanging pipe shed positioning frame is formed, and construction of the pipe shed 6 is assisted. Before the pipe shed positioning pipe 5 is installed, the temporary dismantling steel frame 2 needs to be dismantled first, so that the two are prevented from being in mutual conflict in space.
Specifically, the pipe shed support steel frame 1 is an erected I-steel which is closest to the face and relatively stable, and then the steel frame 2 and the pipe shed positioning steel frame 3 are temporarily dismantled in sequence.
The pipe shed positioning ribs 4 are circumferentially distributed in the range of 120 degrees of the arch part, and the distribution interval of the adjacent pipe shed positioning ribs 4 is generally 40-50cm; the pipe shed positioning ribs 4 can be arranged on the rear side of the pipe shed positioning steel frame 3 in a single-sided manner, and can be symmetrically arranged on the front side and the rear side of the pipe shed positioning steel frame 3 in a double-sided manner.
The pipe shed positioning rib 4 comprises a connecting portion 4.1, an extending portion 4.2 and an annular positioning portion 4.3, wherein the connecting portion 4.1 is welded on a lower flange plate of the pipe shed positioning steel frame 3, and the size of the annular positioning portion 4.3 is matched with the pipe diameter of a pipe shed positioning pipe 5.
The length of the extension part 4.2 is adjusted according to the auxiliary construction angle of the suspension type pipe shed locating frame which is set according to the requirement, wherein the length of the extension part of the pipe shed locating rib which is arranged at the rear side of the pipe shed locating steel frame 3 is slightly longer than that of the extension part of the pipe shed locating rib which is arranged at the front side of the pipe shed locating steel frame 3.
The connecting part 4.1, the extension part 4.2 and the annular positioning part 4.3 are of an integral molding structure consisting of an L shape and a U shape. The integral forming structure is formed by bending steel bars with the diameter of more than 20 mm.
The specific construction process comprises the following steps:
1) When conditions of weak broken surrounding rock bands, collapse or roof collapse and the like of an inner pipe shed of a tunnel are met in the tunnel construction process, selecting a pipe shed supporting steel frame 1, a temporary dismantling steel frame 2 and a pipe shed positioning steel frame 3 according to site conditions, wherein the pipe shed supporting steel frame 1 is erected I-steel which is closest to a tunnel face and relatively stable, and then the temporary dismantling steel frame 2 and the pipe shed positioning steel frame 3 are sequentially arranged;
2) Mounting a pipe shed positioning rib 4 on the pipe shed positioning steel frame 3;
3) Under the condition of ensuring construction safety, carrying out slotting dismantling construction on the temporary dismantling steel frame 2, and adopting auxiliary construction measures such as radial grouting reinforcement and the like when necessary;
4) The installation construction of the pipe shed positioning pipe 5 is carried out, and the concrete operation is as follows: the pipe shed positioning pipe 5 passes through the annular positioning part 4.3 of the pipe shed positioning rib 4 and is lapped on the upper wing plate of the pipe shed supporting steel frame 1, then the position of the front end of the pipe shed positioning pipe 5 on the pipe shed supporting steel frame 1 is adjusted, the vertical projection of the pipe shed positioning pipe 5 is lifted by an angle after being leveled with the tunnel axis, the lifting angle is the construction elevation angle of the subsequent pipe shed 6, and then the pipe shed positioning pipe 5, the annular positioning part 4.3 of the pipe shed positioning rib 4 and the upper wing plate of the pipe shed supporting steel frame 1 are welded and fixed;
5) Constructing a pipe shed 6 by means of a suspension type pipe shed positioning frame, and then excavating a tunnel under the protection of the pipe shed 6;
6) After the construction of the relevant paragraph is completed, the pipe shed 6 which invades the secondary lining limit of the tunnel is cut off, then the pipe shed positioning ribs 4 and the pipe shed positioning pipes 5 are removed, the temporary removal steel frame 2 is erected again, the pipe shed support steel frame 1 is sprayed with concrete, the temporary removal steel frame 2 and the pipe shed positioning steel frame 3 are subjected to concrete spraying sealing treatment, and all the construction of the structure is completed.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variations and modification made to the above embodiment according to the technical matter of the present utility model without departing from the technical scope of the present utility model still fall within the scope of the technical scheme of the present utility model.
Claims (8)
1. A hanging type pipe shed positioning frame for a tunnel inner pipe shed comprises a pipe shed supporting steel frame (1), a temporary dismantling steel frame (2), a pipe shed positioning steel frame (3), a pipe shed positioning pipe (5) and a pipe shed (6) sleeved in the pipe shed positioning pipe (5); the method is characterized in that: the pipe shed supporting steel frame (1) and the pipe shed positioning steel frame (3) are respectively arranged at the front side and the rear side of the temporary dismantling steel frame (2); a pipe shed positioning rib (4) is arranged at the lower part of the pipe shed positioning steel frame (3), one end of a pipe shed positioning pipe (5) is supported on the pipe shed supporting steel frame (1), and the other end of the pipe shed positioning pipe penetrates through the pipe shed positioning rib (4) and is fixedly connected with the pipe shed positioning rib.
2. A suspended pipe shed spacer for a tunnel inner pipe shed as in claim 1, wherein: the pipe shed support steel frame (1) is erected I-steel which is closest to the tunnel face and relatively stable, and the steel frame (2) and the pipe shed positioning steel frame (3) are removed temporarily in sequence.
3. A suspended pipe shed spacer for a tunnel inner pipe shed as in claim 1, wherein: the pipe shed positioning ribs (4) are circumferentially distributed within the range of 120 degrees of the arch part, and the distribution interval of the adjacent pipe shed positioning ribs (4) is 40-50cm.
4. A suspended pipe shed spacer for a tunnel inner pipe shed as in claim 3, wherein: the pipe shed positioning ribs (4) are arranged on the rear side of the pipe shed positioning steel frame (3) on one side;
or the pipe shed positioning ribs (4) are symmetrically arranged on two sides of the pipe shed positioning steel frame (3) in double sides.
5. The suspended pipe shed positioning frame for the inner pipe shed of the tunnel according to claim 4, wherein: the pipe shed positioning rib (4) comprises a connecting portion (4.1), an extending portion (4.2) and an annular positioning portion (4.3), wherein the connecting portion (4.1) is welded on a lower flange plate of a pipe shed positioning steel frame (3), and the size of the annular positioning portion (4.3) is matched with the pipe diameter of a pipe shed positioning pipe (5).
6. The suspended pipe shed positioning frame for the inner pipe shed of the tunnel according to claim 5, wherein: the length of the extension part of the pipe shed positioning rib arranged at the rear side of the pipe shed positioning steel frame (3) is slightly longer than that of the extension part of the pipe shed positioning rib arranged at the front side of the pipe shed positioning steel frame (3).
7. The suspended pipe shed positioning frame for the inner pipe shed of the tunnel according to claim 6, wherein: the connecting part (4.1), the extension part (4.2) and the annular positioning part (4.3) are of an integral molding structure consisting of an L shape and a U shape.
8. The suspended pipe shed positioning frame for the inner pipe shed of the tunnel according to claim 7, wherein: the integral forming structure is formed by bending steel bars with the diameter of more than 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322013138.2U CN220226912U (en) | 2023-07-28 | 2023-07-28 | Suspension type pipe shed locating rack for tunnel inner pipe shed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322013138.2U CN220226912U (en) | 2023-07-28 | 2023-07-28 | Suspension type pipe shed locating rack for tunnel inner pipe shed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220226912U true CN220226912U (en) | 2023-12-22 |
Family
ID=89176962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322013138.2U Active CN220226912U (en) | 2023-07-28 | 2023-07-28 | Suspension type pipe shed locating rack for tunnel inner pipe shed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220226912U (en) |
-
2023
- 2023-07-28 CN CN202322013138.2U patent/CN220226912U/en active Active
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