CN204436418U - Lid digs top board structure that is prefabricated in subway station and cast-in-place combination - Google Patents
Lid digs top board structure that is prefabricated in subway station and cast-in-place combination Download PDFInfo
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- CN204436418U CN204436418U CN201520113094.3U CN201520113094U CN204436418U CN 204436418 U CN204436418 U CN 204436418U CN 201520113094 U CN201520113094 U CN 201520113094U CN 204436418 U CN204436418 U CN 204436418U
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Abstract
The utility model discloses a kind of lid and dig top board structure that is prefabricated in subway station and cast-in-place combination, comprise horizontal shore, the left and right sides of described horizontal shore is equipped with the collar tie beam that bears down on one, and described horizontal shore is added is provided with prefabricated superimposed sheet, and described prefabricated superimposed sheet is provided with casting top slab.Described prefabricated superimposed sheet bears down on one between collar tie beam two.Described horizontal shore, prefabricated superimposed sheet and the height that casting top slab combines with bear down on one that to enclose depth of beam identical.Top board of the present utility model adopts prefabricated superimposed sheet to do template, and without the need to removing, save formwork striking time, saved mould material, prefabricated superimposed sheet becomes a part for structure roof, increases the globality of station top board.
Description
Technical field
The utility model relates to a kind of lid and digs in subway station the station top board structure utilizing prefabricated units to do template to build.
Background technology
At present, bustling Metro Excavation station, location, city is that after adopting cap excavation method to be faced down be excavated to the top board degree of depth by ground, by top seal, recover temporary road, remaining bottom engineering is constructed under the top cover closed; But existing lid digs station top board and all adopts cast-in-place structural, formwork form removal required time is longer, and construction is complicated, and have a strong impact on the backfill time, long-term blocked road has increased the weight of traffic jam issue.
Chinese patent CN 102926403 A discloses a kind of top board of digging method construction, and its top board adopts first matting layer then formwork supporting plate cast-in-place concrete structure, and need stripping and bed course after concrete curing completes, the required duration is oversize.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, and provide a kind of prefabricated units that utilize to do the cast-in-place station top board structure of template, top board adopts prefabricated superimposed sheet to do template, without the need to removing, saving formwork striking time, having saved mould material; Prefabricated superimposed sheet becomes a part for structure roof, and the double secondary beam doing top board bears upper load.
For achieving the above object, the utility model adopts following technical proposals:
A kind of lid digs top board structure that is prefabricated in subway station and cast-in-place combination, comprise horizontal shore, the left and right sides of described horizontal shore is equipped with the collar tie beam that bears down on one, and described horizontal shore is added is provided with prefabricated superimposed sheet, and described prefabricated superimposed sheet is provided with casting top slab.
Described prefabricated superimposed sheet bears down on one between collar tie beam two.
Described horizontal shore, prefabricated superimposed sheet and the height that casting top slab combines with bear down on one that to enclose depth of beam identical.
The vertical sectional shape of described prefabricated superimposed sheet is that multiple convex shape connects to form.
Longitudinally reinforcing bar is provided with in described prefabricated superimposed sheet.
The high spot reserved joint bar of described prefabricated superimposed sheet, described reserved joint bar top is provided with crotch, can hold the main muscle in the cast-in-place structural of top, together with the reinforcing bar binding in the cast-in-place structural of top, increases the fastness of cast-in-place structural and prefabricated superimposed sheet.
The beneficial effects of the utility model are:
Bear down on one in the utility model collar tie beam and top board beam is built simultaneously, and stability is better, and genus is rigidly connected, and the pressure of the top backfill soil body passes to stake by top board, can add the anti-floating ability at station.
Top board of the present utility model adopts prefabricated superimposed sheet to do template, without the need to removing, saves formwork striking time, greatly reduces the off-period of top road.Save mould material, prefabricated superimposed sheet becomes a part for structure roof simultaneously, and the double secondary beam doing top board bears upper load, increases the globality of station top board.
Accompanying drawing explanation
Fig. 1 is that the utility model lid digs top board structure schematic diagram that is prefabricated in subway station and cast-in-place combination;
Fig. 2 is that the utility model lid digs top board structure top view that is prefabricated in subway station and cast-in-place combination;
Fig. 3 is that the utility model top board structure is covering the application schematic diagram dug in subway station;
Fig. 4 is the sectional view of the prefabricated superimposed sheet of the utility model top board structure;
Fig. 5 is the top view of the prefabricated superimposed sheet of the utility model top board structure;
In figure, 1 is fender post; 3 is stand column pile; 4 is prefabricated superimposed sheet; 5 is reinforcing bar; 6 is reserved joint bar; 7 is casting top slab; 8 is horizontal shore; 9 is water-stop curtain; 10 is the collar tie beam that bears down on one, and 11 is backfill.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As Figure 1-Figure 2, lid digs top board structure that is prefabricated in subway station and cast-in-place combination, comprise horizontal shore 8, the left and right sides of horizontal shore 8 is equipped with the collar tie beam 10 that bears down on one, on horizontal shore 8, two erections of bearing down on one between collar tie beam 10 have prefabricated superimposed sheet 4, and prefabricated superimposed sheet 4 is provided with casting top slab 7.Horizontal shore 8, prefabricated superimposed sheet 4 are identical with the height of the collar tie beam 10 that bears down on one with the height that casting top slab 7 combines.
As shown in Figure 3, utilize the utility model top board structure lid to dig the application of subway station, comprise the following steps:
Step 1. utilizes pile press that prefabricated fender post 1, stand column pile 3 are pressed into the position designed on construction ground;
A) combine near vehicle flowrate rule, at night closure construction section road between 9 to morning 7 next day, and carry out road Warning Mark;
B) utilize pile press that prefabricated fender post 1 is pressed into design attitude, injected hole grouting and reinforcing stake end stratum in the middle of utilizing;
C) outside fender post 1, set a circle cement mixing method as water-stop curtain 9, coordinate dewatering measure to ensure that foundation pit dewatering does not cause the problems such as the sedimentation of surrounding building with measure of recharging;
D) utilize pile press that prefabricated stand column stake 3 is pressed into design attitude.
Step 2. excavation pit, builds the collar tie beam 10 that bears down on one, horizontal support 8, lays prefabricated superimposed sheet 4, pouring structure top board 7;
A) full-time blocked road, carries out enclosing and road Warning Mark;
B) little slope excavation pit to fender post of putting exposes position, stake top;
C) excavation pit side shotcrete with steel bar nets, prevents side slope slump, optionally adopts plate brad supporting;
D) bear down on one in the colligation of fender post top the reinforcing bar of collar tie beam 10, and the reinforcing bar of colligation horizontal shore 8, horizontal shore 8 frame stands in the tip position of stand column pile 3;
E) install bear down on one collar tie beam 10 and horizontal shore 8 template, build bear down on one collar tie beam 10 and horizontal shore 8;
F) on horizontal shore 8, lay prefabricated superimposed sheet 4, the two end supports of plate is double on horizontal shore 8 does top board secondary beam, the double girder doing top board of horizontal shore 8;
G) colligation roof steel bar on prefabricated superimposed sheet 4, the reserved joint bar 6 of roof steel bar and prefabricated superimposed sheet links together, and then builds top board 7, reserves soil outlet and charging aperture in both sides, road;
H) curing concrete is to design strength, laying water-proof coiled material.
Step 3. backfills the top earthwork, road traffic directly over recovery;
A) carry out the protection of soil outlet and charging aperture, backfill tabia above top board and compacting;
B) construction subgrade, laying road, resumes traffic.
As shown in fig. 4-5, the vertical sectional shape of prefabricated superimposed sheet 4 is that multiple convex shape connects to form.With convex shape plate base plate for plane, the length direction of convex shape plate bossing is longitudinally, is longitudinally provided with reinforcing bar 5 in prefabricated superimposed sheet 4.The high spot reserved joint bar 6 of prefabricated superimposed sheet 4.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (6)
1. a lid digs top board structure that is prefabricated in subway station and cast-in-place combination, it is characterized in that, comprise horizontal shore, the left and right sides of described horizontal shore is equipped with the collar tie beam that bears down on one, described horizontal shore is added is provided with prefabricated superimposed sheet, and described prefabricated superimposed sheet is provided with casting top slab.
2. lid as claimed in claim 1 digs top board structure that is prefabricated in subway station and cast-in-place combination, and it is characterized in that, described prefabricated superimposed sheet is bearing down on one between collar tie beam.
3. lid as claimed in claim 1 digs top board structure that is prefabricated in subway station and cast-in-place combination, it is characterized in that, described horizontal shore, prefabricated superimposed sheet and the height that casting top slab combines with bear down on one that to enclose depth of beam identical.
4. lid as claimed in claim 1 digs top board structure that is prefabricated in subway station and cast-in-place combination, and it is characterized in that, the vertical sectional shape of described prefabricated superimposed sheet is that multiple convex shape connects to form.
5. lid as claimed in claim 1 digs top board structure that is prefabricated in subway station and cast-in-place combination, it is characterized in that, the high spot reserved joint bar of described prefabricated superimposed sheet.
6. lid as claimed in claim 5 digs top board structure that is prefabricated in subway station and cast-in-place combination, and it is characterized in that, described reserved joint bar top is provided with crotch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113094.3U CN204436418U (en) | 2015-02-16 | 2015-02-16 | Lid digs top board structure that is prefabricated in subway station and cast-in-place combination |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113094.3U CN204436418U (en) | 2015-02-16 | 2015-02-16 | Lid digs top board structure that is prefabricated in subway station and cast-in-place combination |
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| Publication Number | Publication Date |
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| CN204436418U true CN204436418U (en) | 2015-07-01 |
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| CN201520113094.3U Active CN204436418U (en) | 2015-02-16 | 2015-02-16 | Lid digs top board structure that is prefabricated in subway station and cast-in-place combination |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482147A (en) * | 2021-06-28 | 2021-10-08 | 五冶集团上海有限公司 | Construction method of '0' -layer frame structure |
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2015
- 2015-02-16 CN CN201520113094.3U patent/CN204436418U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482147A (en) * | 2021-06-28 | 2021-10-08 | 五冶集团上海有限公司 | Construction method of '0' -layer frame structure |
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