CN220118141U - Disposable supporting structure device for excavation of tunnel body of water delivery tunnel - Google Patents
Disposable supporting structure device for excavation of tunnel body of water delivery tunnel Download PDFInfo
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- CN220118141U CN220118141U CN202320951300.2U CN202320951300U CN220118141U CN 220118141 U CN220118141 U CN 220118141U CN 202320951300 U CN202320951300 U CN 202320951300U CN 220118141 U CN220118141 U CN 220118141U
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- fixedly connected
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- excavation
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000009412 basement excavation Methods 0.000 title claims abstract description 13
- 238000010276 construction Methods 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 2
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 239000002893 slag Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011378 shotcrete Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 101100366060 Caenorhabditis elegans snap-29 gene Proteins 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to the technical field related to tunnel construction, in particular to a disposable supporting structure device for excavation of a water delivery tunnel body, which comprises supporting frames, wherein a reinforcing steel bar body is fixedly connected between the supporting frames, a connecting support is fixedly connected above the supporting frames, an inclined pull rod is fixedly connected between the connecting support and the supporting frames, a first supporting plate and a second supporting plate are fixedly connected between the connecting supports, a fixed shaft is fixedly connected above the first supporting plate, a threaded rod is connected with the inner threads of the fixed shaft, a rotating disc is fixedly connected with the lower end of the threaded rod, and the problems that water flushing and collapse seriously affect the progress of engineering in the excavation process of the water delivery tunnel body of hydraulic engineering and endanger the safety of constructors are solved.
Description
Technical Field
The utility model relates to the technical field related to tunnel construction, in particular to a disposable supporting structure device for excavation of a water delivery tunnel body.
Background
The hydraulic engineering is a built engineering for controlling and allocating surface water and underground water in nature to achieve the aim of removing harm and benefiting. Water is an essential valuable resource for human production and life, but its naturally occurring state does not fully meet the needs of humans. Only when the hydraulic engineering is built, the water flow can be controlled, flood disasters are prevented, and the water quantity is regulated and distributed so as to meet the needs of people living and production on water resources;
the water temperature address condition of the coastal water of the Jinshajiang is complex, the problems of water inrush and collapse in the process of excavating a water delivery tunnel of the hydraulic engineering seriously affect the progress of the engineering, and the safety of constructors is endangered, so that the establishment of an economic and effective tunnel water inrush and collapse treatment technology is significant for tunnel tunneling construction.
In view of the above, we propose a disposable supporting structure device for excavation of the tunnel body of a water conveyance tunnel.
Disclosure of Invention
In order to make up for the defects, the utility model provides a disposable supporting structure device for excavating a tunnel body of a water delivery tunnel.
The technical scheme of the utility model is as follows:
the utility model provides a disposable supporting construction device of water delivery tunnel shaft excavation, includes the support frame, fixedly connected with reinforcing bar body between the support frame, the top fixedly connected with linking bridge of support frame, linking bridge with fixedly connected with diagonal draw bar between the support frame, fixedly connected with first backup pad and second backup pad between the linking bridge, the top fixedly connected with fixed axle of first backup pad, the inside threaded connection of fixed axle has the threaded rod, the lower extreme fixedly connected with rolling disc of threaded rod.
As the preferable technical scheme, the upper end fixedly connected with connecting plate of threaded rod, the top fixedly connected with rubber cushion of connecting plate.
As the preferable technical scheme, the upper part of the diagonal draw bar is fixedly connected with a supporting rod.
As an optimal technical scheme, the upper end of the supporting rod is fixedly connected with the connecting bracket.
As the preferable technical scheme, a fixed block is fixedly connected below the supporting frame.
As the preferable technical scheme, the fixed plate is fixedly connected below the fixed block, and the fixed through hole is formed in the surface of the fixed plate.
Compared with the prior art, the utility model has the beneficial effects that:
according to the hydraulic engineering water delivery tunnel supporting device, the inside of the tunnel body is supported, so that the collapse of the tunnel is avoided, the construction safety is improved, the beneficial effects of rapid tunneling of the small-section water delivery tunnel through a poor geological section are realized, and the problems that water inrush and collapse in the process of excavating the hydraulic engineering water delivery tunnel seriously affect the progress of engineering and endanger the safety of constructors are solved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a supporting frame structure according to the present utility model;
FIG. 3 is a schematic view of a connecting bracket according to the present utility model;
fig. 4 is a schematic view of a first supporting board structure according to the present utility model.
In the figure: 1. a support frame; 11. a fixed block; 12. a fixing plate; 13. a fixing through hole; 14. a reinforcing steel bar body; 15. a connecting bracket; 16. a diagonal draw bar; 17. a support rod; 2. a first support plate; 21. a second support plate; 22. a fixed shaft; 23. a threaded rod; 24. a rotating disc; 25. a connecting plate; 26. and a rubber cushion block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two elements; the specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 4, the present utility model provides a technical solution:
the utility model provides a disposable supporting construction device of water delivery tunnel shaft excavation, including support frame 1, fixedly connected with reinforcing bar body 14 between the support frame 1, the top fixedly connected with linking bridge 15 of support frame 1, fixedly connected with diagonal draw bar 16 between linking bridge 15 and the support frame 1, fixedly connected with first backup pad 2 and second backup pad 21 between the linking bridge 15, the top fixedly connected with fixed axle 22 of first backup pad 2, the inside threaded connection of fixed axle 22 has threaded rod 23, the lower extreme fixedly connected with rolling disc 24 of threaded rod 23, the upper end fixedly connected with connecting plate 25 of threaded rod 23, the top fixedly connected with rubber cushion 26 of connecting plate 25, the top fixedly connected with bracing piece 17 of diagonal draw bar 16, the upper end and linking bridge 15 fixed connection of bracing piece 17, the below fixedly connected with fixed block 11 of support frame 1, the below fixedly connected with fixed plate 12 of fixed block 11, fixed through-hole 13 has been seted up on the surface of fixed plate 12, after confirming support frame 1 position, the rolling disc 24, upwards promotes connecting plate 25 through 23, make rubber cushion upwards promote supporting frame 1.
To supplement, the potential safety hazard caused by front water gushing collapse of the excavated supporting hole section is not prevented, the outer section supporting frame 1 supporting construction is firstly carried out within a certain length range from the slag soil, the supporting frames 1 are of steel structure type I16, the distance is 40cm, phi 25 steel bar bodies 14 are adopted to connect the supporting frames 1, the distance is 50cm, phi 22 mortar anchor rods with L=1.8m are respectively arranged on the supporting frames 1, concrete pouring is carried out on the initial slag soil surface formed by the collapse of the tunnel after the supporting frames 1 are supported, the strength grade C15 is carried out, the thickness is 50cm, and the supporting frames are used as cover plates for primary concreting grouting.
The grouting construction is carried out in the first period, grouting is carried out while pushing according to the hole forming condition, grouting is carried out from outside to inside gradually in sequence, the aperture of a consolidation grouting hole is 50mm, phi 50 flower pipes and L=6m are adopted, the direction and the axis of the hole form an included angle of 10 degrees outwards, the row spacing is 3.0m, the hole spacing is 50cm, quincuncial arrangement is adopted among the rows, water purification slurry is adopted as grouting materials, the water-cement ratio change range of the slurry is 0.45:1-0.65:1, the grouting pressure is preferably controlled to be 0.2-0.5 MPa, the pressure is specifically determined according to the actual condition of the site, and meanwhile, the water drainage hole is drilled.
Further, the outer part of the secondary grouting cover plate is fixedly subjected to grouting construction, grouting is performed while advancing according to the hole forming condition, the hole diameter is 75mm, the hole depth is 9m, an angle of 20 degrees is formed between the grouting cover plate and the axis of a hole outwards, the row spacing is 2.0m, the hole spacing is 50cm, quincuncial arrangement is formed between the rows, then outer anchor rod construction is performed, and the anchor rods phi 28 and L=9m.
Further, the construction of the self-advancing type advanced anchor rod is carried out, the self-advancing type anchor rod is carried out, phi 25 is adopted, L=4.5 m, the distance is 10cm, the overlap length of each row of anchor rods is 1.5m, grouting cover plate concrete is removed after the construction of the advanced anchor rod is finished, slag discharge is started, bottom plate cushion layer concrete pouring is carried out, each time 0.5m is excavated forwards, the support frame 1 and the sprayed concrete support are immediately carried out, parameters of the support frame 1 are the same as the first step, the reinforcing mesh is phi 6.5, the distance is 5cm, the sprayed concrete is C20, the thickness is 16cm, the partial concreting grouting construction in the second-stage grouting cover plate is finally carried out, grouting is carried out while concreting grouting is carried out according to hole forming conditions, the sequential circulation grouting is carried out, quincuncial arrangement is carried out among each row of grouting holes, the aperture is 75mm, and the hole depth is 9m.
When the disposable supporting structure device for excavating the tunnel body of the water conveying tunnel is used, potential safety hazards caused by front water burst collapse of an excavated supporting tunnel section are not prevented, first, outer-section supporting frame 1 supporting construction is carried out within a certain length range from slag soil, the supporting frames 1 are of steel structure type I16 and are 40cm in distance, phi 25 steel bar bodies 14 are adopted among the supporting frames 1 to be connected, the distance is 50cm, phi 22 mortar anchor rods and L=1.8m mortar anchor rods are respectively arranged among the supporting frames 1, concrete pouring is carried out on the initial slag soil surface formed by the collapse of the tunnel after the supporting frames 1 are supported, the strength grade C15 is 50cm, and the supporting frames are used as cover plates for primary concreting grouting.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a disposable supporting construction device of water delivery tunnel shaft excavation, includes support frame (1), its characterized in that: fixedly connected with reinforcing bar body (14) between support frame (1), the top fixedly connected with linking bridge (15) of support frame (1), linking bridge (15) with fixedly connected with diagonal draw bar (16) between support frame (1), fixedly connected with first backup pad (2) and second backup pad (21) between linking bridge (15), the top fixedly connected with fixed axle (22) of first backup pad (2), the inside threaded connection of fixed axle (22) has threaded rod (23), the lower extreme fixedly connected with rolling disc (24) of threaded rod (23).
2. The disposable supporting structure device for excavation of a tunnel body of a water conveyance tunnel according to claim 1, wherein: the upper end of the threaded rod (23) is fixedly connected with a connecting plate (25), and a rubber cushion block (26) is fixedly connected above the connecting plate (25).
3. The disposable supporting structure device for excavation of a tunnel body of a water conveyance tunnel according to claim 1, wherein: the upper part of the diagonal draw bar (16) is fixedly connected with a supporting rod (17).
4. A disposable support structure device for excavation of a tunnel body of a water conveyance tunnel as set forth in claim 3, wherein: the upper end of the supporting rod (17) is fixedly connected with the connecting bracket (15).
5. The disposable supporting structure device for excavation of a tunnel body of a water conveyance tunnel according to claim 1, wherein: the lower part of the supporting frame (1) is fixedly connected with a fixed block (11).
6. The disposable supporting structure device for excavating a tunnel body of a water delivery tunnel according to claim 5, wherein: the fixing plate (12) is fixedly connected to the lower portion of the fixing block (11), and fixing through holes (13) are formed in the surface of the fixing plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320951300.2U CN220118141U (en) | 2023-04-25 | 2023-04-25 | Disposable supporting structure device for excavation of tunnel body of water delivery tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320951300.2U CN220118141U (en) | 2023-04-25 | 2023-04-25 | Disposable supporting structure device for excavation of tunnel body of water delivery tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220118141U true CN220118141U (en) | 2023-12-01 |
Family
ID=88892030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320951300.2U Active CN220118141U (en) | 2023-04-25 | 2023-04-25 | Disposable supporting structure device for excavation of tunnel body of water delivery tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220118141U (en) |
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2023
- 2023-04-25 CN CN202320951300.2U patent/CN220118141U/en active Active
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