CN208416545U - A kind of shield well reserving hole quick blocking system - Google Patents
A kind of shield well reserving hole quick blocking system Download PDFInfo
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- CN208416545U CN208416545U CN201820964116.0U CN201820964116U CN208416545U CN 208416545 U CN208416545 U CN 208416545U CN 201820964116 U CN201820964116 U CN 201820964116U CN 208416545 U CN208416545 U CN 208416545U
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- shield well
- plugging plate
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- reserving hole
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Abstract
The utility model relates to a kind of shield well reserving hole quick blocking systems, prefabricated plugging plate is set above shield well reserving hole, prefabricated plugging plate both side plate end is erected on the main structure top plate ring beam of shield well, monolithic reinforced concrete structure layer is set above prefabricated plugging plate, it is laid with waterproof layer above monolithic reinforced concrete structure layer, foundation pit backfill layer is backfilled with above waterproof layer.The utility model blocks hole by prefabricated plugging plate after shield well completion mission, and closure is laid with waterproof layer, cast-in-place concrete layer after the completion, and the work such as foundation pit backfill have the characteristics that closure is quick, engineering intersection is small, save the duration, is safe.
Description
Technical field
The utility model relates to Tunnel Engineering technical fields, and in particular to a kind of shield well reserving hole quick blocking body
System.
Background technique
The Railway Transit Construction dynamics of cities in China gradually increases at present, citizen to the needs of subway increasingly
Urgently, subway construction duration and safe pressure are increasing, after the completions construction such as construction later period shield, routinely set up scaffold
Holes blocking technology, laying a railway track with tunnel, there are cross-operation for equal electromechanical equipments unit, and safety is relatively poor.
Summary of the invention
The purpose of the utility model is to provide a kind of shield well reserving hole quick blocking systems in the construction process can
By shifting to an earlier date prefabricated hole plugging plate, after the completion of the constructions such as shield, directly it is erected on reserving hole, is laid with waterproof layer, is existing
Pouring concrete layer etc. realizes hole quick closure, and is not take up tunnel space, and electromechanical unit is not influenced by closure.
The technology employed by the present utility model is
A kind of shield well reserving hole quick blocking system, it is characterised in that:
Prefabricated plugging plate is set above shield well reserving hole, and prefabricated plugging plate both side plate end is erected on the master of shield well
Body structure roof ring beam, is arranged monolithic reinforced concrete structure layer above prefabricated plugging plate, on monolithic reinforced concrete structure layer
Side is laid with waterproof layer, and foundation pit backfill layer is backfilled with above waterproof layer.
Prefabricated plugging plate is in bar shaped, and parallel side-by-side is set to above shield well reserving hole.
Prefabricated plugging plate both side plate end is taken on the neat mouth for being placed on and being arranged on the inside of main structure top plate ring beam, and the surface of neat mouth is set
It is equipped with cement mortar screeding layer.
The filling of neoprene latex cement is provided between prefabricated plugging plate side end face and main structure top plate ring beam.
Water expandable waterstop is provided between prefabricated plugging plate end bottom surface and the neat discharge surface of main structure top plate ring beam.
Monolithic reinforced concrete structure layer performs above prefabricated plugging plate, and two sides cover prefabricated plugging plate and main structure
The seam of top plate ring beam.
Main structure top plate ring beam top surface below monolithic reinforced concrete structure layer end is provided with water-swellable sealing
Item.
The utility model has the advantage that
The utility model reserves the neat mouth of prefabricated board construction in main body construction, and prefabricated plugging plate, is laid with cast-in-place coagulation in advance
Soil layer, waterproof layer, equipment, the material etc. blocked for shield preformed hole is conventional material, convenient for construction.And it can be according to stress
And equipment needs to process different size prefabricated board, meets plurality of specifications reserving hole blocking technology.Prefabricated board is laid with after the completion i.e.
Electromechanical construction in hole can be carried out, duration intersection is reduced, saves the duration, and is safe and reliable.
Detailed description of the invention
Fig. 1 is the utility model floor plan.
Fig. 2 is the utility model cross-sectional view.
Fig. 3 is prefabricated plugging plate plate end enlarged drawing.
In figure, 1, building enclosure, 2, main structure side wall, 3, main structure top plate ring beam, 4, foundation pit backfill layer, 5, prefabricated
Plugging plate, 6, monolithic reinforced concrete structure layer, 7, cement mortar screeding layer, 8, water expandable waterstop, 9, neoprene latex water
Mud filling, 10, waterproof layer.
Specific embodiment
The utility model is described in detail With reference to embodiment.
The utility model relates to a kind of shield well reserving hole quick blocking systems, in the construction process, can be by advance
Prefabricated hole plugging plate is directly erected on reserving hole after the completion of the constructions such as shield, is laid with waterproof layer, cast-in-place concrete
Layer etc. realizes hole quick closure, and is not take up tunnel space, and electromechanical unit is not influenced by closure.
Specific structure is:
Prefabricated plugging plate 5 is set above shield well reserving hole, and prefabricated plugging plate 5 is in bar shaped, and parallel side-by-side is set to
Above shield well reserving hole.Prefabricated plugging plate 5 carries out reasonable piecemeal according to reserved shield well size, and end can be set as needed
Head block, general control block 1.5 meters of board width <, and plate is wide to be generally uniformly distributed, and block engineering and use same size as far as possible, in shield
Structure construction period completion engineering is prefabricated, is prefabricated reinforced concrete structure.Prefabricated 5 both side plate end of plugging plate is erected on shield well
Main structure top plate ring beam 3, end take on the neat mouth for being placed on and being arranged on the inside of main structure top plate ring beam 3, neat mouth be sink platform,
Neat mouth need to meet prefabricated board stress demand, and the surface of neat mouth is provided with cement mortar screeding layer 7.It is arranged above prefabricated plugging plate 5
Monolithic reinforced concrete structure layer 6, as waterproof reinforced layer, using C35 concrete, thickness 300mm is laid with Dual-layer reinforcing bar
12@150 × 150 of mesh sheet φ.When prefabricated plugging plate 5 can not undertake whole overlying water soil pressures, monolithic reinforced concrete structure layer 6
It can be used as coaction system to be designed, increase in-situ layer thickness and steel-bar arrangement form.Monolithic reinforced concrete structure layer 6
Top is laid with waterproof layer 10, and foundation pit backfill layer 4 is backfilled with above waterproof layer 10.
The neoprene latex water of 50 ~ 100mm thickness is provided between prefabricated 5 side end face of plugging plate and main structure top plate ring beam 3
Mud filling 9.Water-swellable sealing is provided between prefabricated 5 end bottom surface of plugging plate and the neat discharge surface of main structure top plate ring beam 3
Item 8.
Monolithic reinforced concrete structure layer 6 performs above prefabricated plugging plate 5, and two sides cover prefabricated plugging plate 5 and main body
The seam of structure roof ring beam 3.3 top surface of main structure top plate ring beam setting below 6 end of monolithic reinforced concrete structure layer
There is water expandable waterstop 8.
The construction method of above structure includes the following steps:
1) shield well size, including shield reserving hole size are determined.
2) construction main structure side wall 2, top plate hole main structure top plate ring beam 3 of constructing.
3) shield-tunneling construction.
4) prefabricated plugging plate 5 uses C50, and every piece 1.5 meters of width <, batch production is prefabricated.
5) after the completion of shield-tunneling construction, prefabricated 5 installation site of plugging plate positioning.
6) the neat mouth of main structure top plate ring beam 3 is smoothed out to form cement mortar screeding layer 7, strength grade with 1:1 cement mortar
>=M15, and water expandable waterstop 8 is installed.
7) prefabricated 5 piecemeal of plugging plate lifting installation.
Prefabricated 5 prefabrication process of plugging plate, need to be pre-buried 4,25 suspension hook of φ at both ends, lifting when facilitating site operation.
8) neoprene latex cement is filled between main structure top plate ring beam 3 and prefabricated plugging plate 5.
9) water expandable waterstop 8 of 3 top surface of mounting body structure roof ring beam, it is cast-in-place mixed above prefabricated plugging plate 5
Solidifying soil is laid with range and is wider than 2000 meters of prefabricated board or to 1 inward flange 500mm of building enclosure, reinforced mesh using C35 concrete
It is laid with for φ 12 150 × 150 is double-deck.
10) monolithic reinforced concrete structure layer 6 can be laid with waterproof layer 10 after the completion of constructing, and waterproof layer 10 is coating waterproof layer
+ 70mm thickness C20 pea gravel concreten protective layer composition.
11) it is backfilled to designed elevation as required, preformed hole, which blocks, to be completed.
The content of the utility model is not limited to cited by embodiment, and those of ordinary skill in the art are practical new by reading this
Type specification and to any equivalent transformation that technical solutions of the utility model are taken, be the claim institute of the utility model
Cover.
Claims (7)
1. a kind of shield well reserving hole quick blocking system, it is characterised in that:
Prefabricated plugging plate (5) is set above shield well reserving hole, and prefabricated plugging plate (5) both side plate end is erected on shield well
Monolithic reinforced concrete structure layer (6) are arranged in main structure top plate ring beam (3), prefabricated plugging plate (5) top, cast in place reinforced bar coagulation
Waterproof layer (10) are laid with above soil structure layer (6), foundation pit backfill layer (4) is backfilled with above waterproof layer (10).
2. a kind of shield well reserving hole quick blocking system according to claim 1, it is characterised in that:
Prefabricated plugging plate (5) is in bar shaped, and parallel side-by-side is set to above shield well reserving hole.
3. a kind of shield well reserving hole quick blocking system according to claim 1, it is characterised in that:
Prefabricated plugging plate (5) both side plate end is taken on the neat mouth for being placed on and being arranged on the inside of main structure top plate ring beam (3), the surface of neat mouth
It is provided with cement mortar screeding layer (7).
4. a kind of shield well reserving hole quick blocking system according to claim 3, it is characterised in that:
Neoprene latex cement filling (9) is provided between prefabricated plugging plate (5) side end face and main structure top plate ring beam (3).
5. a kind of shield well reserving hole quick blocking system according to claim 3, it is characterised in that:
Water-swellable sealing is provided between prefabricated plugging plate (5) end bottom surface and the neat discharge surface of main structure top plate ring beam (3)
Item (8).
6. a kind of shield well reserving hole quick blocking system according to claim 1, it is characterised in that:
Monolithic reinforced concrete structure layer (6) performs above prefabricated plugging plate (5), and two sides cover prefabricated plugging plate (5) and master
The seam of body structure roof ring beam (3).
7. a kind of shield well reserving hole quick blocking system according to claim 1, it is characterised in that:
Main structure top plate ring beam (3) top surface below monolithic reinforced concrete structure layer (6) end is provided with water-swellable and stops
Water bar (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820964116.0U CN208416545U (en) | 2018-06-22 | 2018-06-22 | A kind of shield well reserving hole quick blocking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820964116.0U CN208416545U (en) | 2018-06-22 | 2018-06-22 | A kind of shield well reserving hole quick blocking system |
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| Publication Number | Publication Date |
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| CN208416545U true CN208416545U (en) | 2019-01-22 |
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| CN201820964116.0U Active CN208416545U (en) | 2018-06-22 | 2018-06-22 | A kind of shield well reserving hole quick blocking system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590681A (en) * | 2018-06-22 | 2018-09-28 | 中铁第勘察设计院集团有限公司 | Shield well reserving hole quick blocking system and its construction method |
-
2018
- 2018-06-22 CN CN201820964116.0U patent/CN208416545U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590681A (en) * | 2018-06-22 | 2018-09-28 | 中铁第勘察设计院集团有限公司 | Shield well reserving hole quick blocking system and its construction method |
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