CN215369949U - Middle plate and frame body reserved door type channel - Google Patents
Middle plate and frame body reserved door type channel Download PDFInfo
- Publication number
- CN215369949U CN215369949U CN202121820638.1U CN202121820638U CN215369949U CN 215369949 U CN215369949 U CN 215369949U CN 202121820638 U CN202121820638 U CN 202121820638U CN 215369949 U CN215369949 U CN 215369949U
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- Prior art keywords
- door type
- support
- middle plate
- frame body
- shield
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000010276 construction Methods 0.000 abstract description 31
- 238000000034 method Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 5
- 238000009415 formwork Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a middle plate frame body reserved door type channel, which aims at the problem that the existing station main body structure and a shield cannot be constructed simultaneously and comprises a full support erected on a bottom plate, a door type support arranged on a shield starting line and a middle plate bottom die arranged at the tops of the full support and the door type support; the gate-type support includes two rows of stands that set up along the shield structure line direction, sets up longeron at every row of stand top and sets up the crossbeam on the longeron, it is stupefied with horizontal time to be equipped with vertical main stupefied on the crossbeam, the die block sets up on stupefied once. According to the method, the portal supports are arranged at the shield line positions, so that the main structure of the station and the shield can be constructed synchronously, the construction efficiency is improved, the construction period is shortened, and the construction cost is reduced; and the door type support is convenient to install, good in stability and convenient to construct.
Description
Technical Field
The utility model relates to the technical field of underground construction, in particular to a middle plate frame body reserved door type channel.
Background
The main structure of the station is divided into a plurality of construction sections according to design requirements for flow construction, and each construction section is constructed according to the sequence of a bottom plate, a side wall, a middle plate, a side wall and a top plate.
Shield interval construction generally sets up the shield shaft in the tip of station to utilize station major structure to do the shield shaft as far as possible, in order to reduce shield shaft construction cost, usually after the length that station major structure has been under construction can satisfy shield machine installation required length, carry out shield machine's installation again. However, the existing station main structure construction generally adopts a full-hall support for construction, the full-hall support is used for bearing the weight and the construction load of a station middle plate and a top plate, the full-hall support needs to be dismantled after the middle plate is poured and the middle plate concrete reaches the strength, so that the constructed effective length of the station cannot meet the installation requirement of a shield machine, and if the effective length of the station main body meets the requirement, the shield starting is carried out.
SUMMERY OF THE UTILITY MODEL
The utility model provides a middle plate frame body reserved door type channel which can meet the requirement of simultaneous construction of a middle plate and a shield and has the advantages of simple structure, low cost, simplicity and convenience in operation and good stability.
The technical problem to be solved is that: the existing full-hall support construction method can be dismantled only after the middle slab concrete reaches the strength, shield construction cannot be carried out in the process, and the shield construction period and the construction cost are increased.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model relates to a middle plate frame body reserved door type channel, which comprises a full support erected on a bottom plate, a door type support arranged on a shield starting line and a middle plate bottom die arranged at the tops of the full support and the door type support;
the gate-type support includes two rows of stands that set up along the shield structure line direction, sets up longeron at every row of stand top and sets up the crossbeam on the longeron, it is stupefied with horizontal time to be equipped with vertical main stupefied on the crossbeam, the die block sets up on stupefied once.
The utility model relates to a middle plate frame body reserved door type channel, further comprising support piers arranged at the lower ends of the stand columns, wherein the support piers are arranged at axillary angles of a bottom plate.
The middle plate frame body provided with the reserved door-type channel further comprises a plurality of horizontal rods for supporting two adjacent side walls, a plurality of rows of temporary vertical rods are arranged in the door-type support, and the horizontal rods are connected with the temporary vertical rods and the full-hall support.
The utility model relates to a middle plate frame body reserved door type channel, and further steel plates are fixedly arranged at the top and the bottom of each upright post respectively.
According to the middle plate frame body reserved door type channel, each row of the stand columns are connected into a whole through the channel steel.
According to the middle plate frame body reserved door type channel, a scissor diagonal brace is arranged between every two adjacent rows of the stand columns.
The middle plate frame body provided with the reserved door type channel is characterized in that a longitudinal rod and a transverse rod are further arranged in the door type frame body, and the longitudinal rod and the transverse rod are connected with a temporary vertical rod.
The middle plate frame body provided with the reserved door type channel is characterized in that the steel plate is connected with the buttress through the expansion bolt.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the method, the portal supports are arranged at the shield line positions, so that the main structure of the station and the shield can be constructed synchronously, the construction efficiency is improved, the construction period is shortened, and the construction cost is reduced; the door type support is convenient to install, good in stability and convenient to construct;
2. the horizontal rod replaces a steel support to replace a support scheme, point support is changed into surface support, the support effect is better, and construction is more convenient.
The utility model will be further explained with reference to the drawings.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
fig. 3 is a schematic view of the installation structure of the protruding temporary vertical rod of the present invention.
Reference numerals:
1. a base plate; 2. a full support; 3. bottom die; 4. a column; 5. a stringer; 6. a cross beam; 7. a steel plate; 8. buttress; 9. main corrugation; 10. secondary corrugation; 11. temporarily erecting a rod; 12. a longitudinal bar; 13. a cross bar; 14. a horizontal bar; 15. channel steel; 16. and (4) a scissor diagonal bracing.
Detailed Description
With reference to fig. 1 and 2, the middle plate frame body reserved door type passage of the present invention includes a full hall support 2 erected on a bottom plate 1, a door type support arranged on a shield originating line, and a middle plate bottom mold 3 arranged on the top of the full hall support 2 and the door type support.
The full support 2 is erected at the position of a non-shield line and used for middle plate construction. The portal support comprises two rows of upright columns 4 arranged along the shield line direction, longitudinal beams 5 arranged at the tops of the upright columns 4 in each row and cross beams 6 arranged on the longitudinal beams 5. The stand 4 is the circular steel tube, and every row of stand 4 evenly sets up many along the shield structure line direction interval. The longitudinal beam 5 is made of 40b I-steel and is welded and fixed with the upright post 4. The cross beams 6 are made of 32b I-shaped steel, are welded and fixed with the two rows of longitudinal beams 5, and are arranged at intervals along the shield line direction.
Further, in order to guarantee the installation stability of stand 4, the steel sheet 7 has been welded respectively at the top of stand 4, bottom, and 1 axillary angle position of bottom plate has been pour concrete buttress 8 and has been made level, and the steel sheet 7 of stand 4 bottom is fixed with buttress 8 through expansion bolts, and the steel sheet 7 and the longeron 5 welded fastening at top increase stand 4's area of contact through setting up steel sheet 7, guarantee stand 4 dark stability of turning round.
Longitudinal main ridges 9 arranged along the shield line direction are laid on the cross beam 6, a plurality of main ridges 9 of the longitudinal beam 5 are uniformly arranged along the length direction of the cross beam 6 at intervals, and the main ridges 9 are made of 32b I-steel. The main edges 9 are paved with transverse secondary edges 10, the secondary edges 10 are made of square wood, and the secondary edges 10 are paved with bottom molds 3.
Referring to fig. 2 and 3, a plurality of rows of temporary upright posts 11 are erected in the portal support, the plurality of rows of temporary upright posts 11 are connected into a whole through longitudinal rods 12 and cross rods 13, horizontal rods 14 are arranged between two adjacent side walls, and the plurality of horizontal upright posts are arranged at intervals in the vertical direction; the two ends of the horizontal rod 14 are respectively supported on the side walls through I-shaped steel, the horizontal rod 14 is connected with the temporary vertical rod 11 and the full support 2 through fasteners, and a steel support replacement scheme is replaced by the horizontal rod 14, so that point support is changed into surface support, the support effect is better, and the construction is more convenient; furthermore, when the horizontal bar 14 is set up to meet the structural column, the horizontal bar 14 is aligned with the structural column.
Further, in order to guarantee the stability of portal jib support when medium plate construction, connect every row of stand 4 as whole through channel-section steel 15, channel-section steel 15 and stand 4 welded fastening set up between every row of adjacent stand 4 and cut fork bracing 16, guarantee the stability of portal jib support when the construction.
According to the method, the portal supports are arranged at the shield line positions, so that the main structure of the station and the shield can be constructed synchronously, the construction efficiency is improved, the construction period is shortened, and the construction cost is reduced; the door type support is convenient to install, good in stability and convenient to construct;
in addition, the horizontal rod 14 replaces a steel support to replace a support scheme, point support is changed into surface support, the support effect is better, and construction is more convenient.
The construction steps are as follows:
excavating the earthwork to a designed elevation, constructing and comprehensively grounding, cushion and waterproofing in sequence, binding the reinforcing steel bars of the bottom plate 1 and pouring the concrete of the bottom plate 1, dismantling the third steel support after the concrete of the bottom plate 1 reaches the designed strength, and applying the concrete of the side wall below the second-layer upright post 4 and the second steel support.
And (3) removing the side wall formwork, and after the side wall concrete reaches the design strength, erecting a middle plate formwork full support 2 and a door type support. Installing a vertical column 4, a longitudinal beam 5 and a cross beam 6; meanwhile, multiple rows of horizontal rods 14 are erected in combination with the formwork support to replace support for the top side wall, a second steel support is dismantled, the formwork support below the middle plate is continuously erected, and finally middle plate concrete is poured.
After the middle plate structure concrete pouring is completed and the strength of the middle plate structure concrete pouring reaches the strength required by the design, the horizontal rods 14 and the temporary vertical rods 11 in the range of the portal supports are removed, and a running channel of the shield tunneling machine is provided.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. The utility model provides a gate-type passageway is reserved to medium plate support body which characterized in that: comprises a full-hall support (2) erected on a bottom plate (1), a door type support arranged on a shield starting line and a middle plate bottom die (3) arranged on the top of the full-hall support (2) and the door type support;
the gate-type support includes two rows of stand (4) that set up along shield structure line direction, sets up longeron (5) at every row of stand (4) top and sets up crossbeam (6) on longeron (5), be equipped with vertical main stupefied (9) and horizontal stupefied (10) of time on crossbeam (6), die block (3) set up on stupefied (10) of time.
2. The middle plate frame body reserved door type channel as claimed in claim 1, wherein: the lower end of the upright post (4) is provided with a buttress (8), and the buttress (8) is arranged at the axillary angle position of the bottom plate (1).
3. The middle plate frame body reserved door type channel as claimed in claim 1, wherein: still including multichannel horizon bar (14) that support adjacent two side walls, be equipped with multirow temporary pole setting (11) in the portal frame, horizon bar (14) are connected with temporary pole setting (11) and full hall support (2).
4. The middle plate frame body reserved door type channel as claimed in claim 2, wherein: and steel plates (7) are fixedly arranged at the top and the bottom of the upright post (4) respectively.
5. The middle plate frame body reserved door type channel as claimed in claim 1, wherein: and each row of the upright posts (4) are connected into a whole through channel steel (15).
6. The middle plate frame body reserved door type channel as claimed in claim 1, wherein: a scissor diagonal brace (16) is arranged between every two adjacent rows of the upright posts (4).
7. The middle plate frame body reserved door type channel as claimed in claim 3, wherein: still be equipped with vertical pole (12) and horizontal pole (13) in the door-type support, vertical pole (12) and horizontal pole (13) all are connected with interim pole setting (11).
8. The middle plate frame body reserved door type channel as claimed in claim 4, wherein: the steel plate (7) is connected with the buttress (8) through an expansion bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121820638.1U CN215369949U (en) | 2021-08-05 | 2021-08-05 | Middle plate and frame body reserved door type channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121820638.1U CN215369949U (en) | 2021-08-05 | 2021-08-05 | Middle plate and frame body reserved door type channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215369949U true CN215369949U (en) | 2021-12-31 |
Family
ID=79615600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121820638.1U Expired - Fee Related CN215369949U (en) | 2021-08-05 | 2021-08-05 | Middle plate and frame body reserved door type channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215369949U (en) |
-
2021
- 2021-08-05 CN CN202121820638.1U patent/CN215369949U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |