CN110076888B - Construction template structure based on immersed tube prefabrication middle and narrow space corridor - Google Patents
Construction template structure based on immersed tube prefabrication middle and narrow space corridor Download PDFInfo
- Publication number
- CN110076888B CN110076888B CN201910472281.3A CN201910472281A CN110076888B CN 110076888 B CN110076888 B CN 110076888B CN 201910472281 A CN201910472281 A CN 201910472281A CN 110076888 B CN110076888 B CN 110076888B
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- Prior art keywords
- template
- trolley
- chamfer
- immersed tube
- narrow space
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- 238000010276 construction Methods 0.000 title claims abstract description 32
- 238000009417 prefabrication Methods 0.000 title claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000009415 formwork Methods 0.000 claims 2
- 238000000034 method Methods 0.000 description 3
- 150000001875 compounds Chemical class 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
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
- B28B13/065—Removing the shaped articles from moulds by applying electric current or other means of discharging, e.g. pneumatic or hydraulic discharging means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
- B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
Abstract
The invention relates to the technical field of immersed tube prefabrication construction, in particular to a construction template structure based on a narrow space gallery in immersed tube prefabrication. Including the platform truck, its characterized in that: the device also comprises a template; the template comprises a top die fixed at the upper end of the trolley, side dies connected to two sides of the trolley, an upper chamfer template connected between the top die and the side dies, and a lower chamfer template hinged at the lower end of the side dies; the lower chamfer template is a retractable and extensible folding structure formed by a plurality of sections of templates. The invention has simple structure and convenient operation, can effectively adapt to the mold stripping and mold closing of the template with small narrow corridor space, has high construction efficiency and high precision, and has great popularization value.
Description
Technical Field
The invention relates to the technical field of immersed tube prefabrication construction, in particular to a construction template structure based on a narrow space gallery in immersed tube prefabrication.
Background
The immersed tube prefabrication is a method commonly used in underwater tunnel construction in China, and is widely used for the construction of immersed tube prefabrication projects such as a Kong-zhu-ao bridge, a Taihu tunnel and the like. Compared with other underwater tunnel construction methods such as a shield method, the method has the advantages of good construction quality, low construction cost, short construction period, high construction safety and the like. However, gallery construction in the existing immersed tube prefabrication is quite spacious, and mechanized operation of a gallery inner mold and a trolley device is facilitated. However, aiming at the gallery construction in a narrow area in the immersed tube structure, the field of immersed tube construction does not show any embodiment at present, and the gallery construction in the narrow area, the problems of difficult shrinkage or expansion and serious influence on construction because the template is demoulded, matched molds and walks are different from a spacious gallery due to narrow space.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provides a construction template structure based on a narrow space gallery in immersed tube prefabrication.
The technical scheme of the invention is as follows: construction template structure based on narrow space corridor in immersed tube prefabrication, including the platform truck, its characterized in that: the device also comprises a template; the template comprises a top die fixed at the upper end of the trolley, side dies connected to two sides of the trolley, an upper chamfer template connected between the top die and the side dies, and a lower chamfer template hinged at the lower end of the side dies; the lower chamfer template is a retractable and extensible folding structure formed by a plurality of sections of templates.
Further the lower chamfer template includes a first chamfer portion and a second chamfer portion; the upper end of the first chamfering part is rotatably hinged to the lower end of the side die, and the lower end of the first chamfering part is rotatably hinged to the upper end of the second chamfering part and forms a gallery lower end chamfering part template with the second chamfering part.
A transverse supporting rod is arranged between the two lower chamfer templates; the transverse supporting rods are horizontally and transversely arranged, and two ends of the transverse supporting rods are respectively and rotatably hinged to the two first chamfer portions.
A vertical supporting rod is further arranged between the lower chamfering template and the trolley; the vertical supporting rods are arranged along the vertical direction, and the upper end and the lower end of the vertical supporting rods are respectively and rotatably hinged to the trolley and the second chamfering part.
Further, sliding grooves are formed in the two transverse ends of the top die; the sliding groove is a long hole perpendicular to the upper chamfer template, and a bolt capable of sliding in the sliding groove is arranged in the sliding groove in a penetrating manner; the upper chamfer template is connected in the chute through a bolt in a sliding way.
And a driving structure for driving the side mold to be demolded and closed is arranged between the trolley and the side mold.
The driving structure further comprises a plurality of demoulding cylinders; the demolding cylinder shell is hinged to the trolley, and the pushing end is hinged to the side mold.
Further the drive structure comprises a sleeve fixed on the trolley; the sleeve is of a cylindrical structure with the axis parallel to the axis of the demolding cylinder, and a guide rod capable of axially moving along the sleeve is arranged in the sleeve in a penetrating manner; one end of the guide rod is connected with the sleeve in a sliding manner, and the other end of the guide rod is connected with the side die in a hinged manner.
The lower end of the trolley is further provided with a jacking cylinder for driving the trolley and the template to vertically move.
The invention has the advantages that: 1. the lower chamfer template in the template is set to be a retractable and extensible folding structure, so that the occupation of the transverse space of the lower chamfer template during demolding and die assembly is reduced, the pouring construction of a narrow space can be dealt with, the problem that the existing template structure is not easy to extend and use in the narrow space is solved, and the template structure has great popularization value;
2. the lower chamfer template is of a two-section structure, the end parts of the first chamfer part and the end part of the second chamfer part are both of hinged connection structures and can rotate through hinge points, and the template can be realized through secondary rotation during demolding or die assembly, so that the operation is convenient;
3. the lower chamfer template is fixed by arranging the vertical supporting rods and the transverse supporting rods, and after die assembly is completed, the lower chamfer template can be stably supported by the vertical supporting rods and the transverse supporting rods, so that the stability of the template structure is improved;
4. by arranging the side die driving structure, the transverse space is saved, power output is provided for side die demolding and die closing, the degree of automation of side die mold closing and demolding is improved, the labor input is reduced, and the construction efficiency is improved;
5. by arranging the guide structure, the moving precision of the side die during demolding and die assembly is improved;
6. through set up spout structure at top mould both ends, be favorable to the removal regulation of upper chamfer template when drawing of patterns and compound die, under the combined action of top mould and side form, upper chamfer template can be quick accurate positioning, easy operation, and the efficiency of construction is high.
The invention has simple structure and convenient operation, can effectively adapt to the mold stripping and mold closing of the template with small narrow corridor space, has high construction efficiency and high precision, and has great popularization value.
Drawings
Fig. 1: the template structure of the invention is schematically shown;
fig. 2: the lower chamfer template shrink structure schematic diagram of the invention;
fig. 3: the upper chamfer template structure of the invention is schematically shown;
wherein: 1-a trolley; 2-top mold; 3-side mold; 4-upper chamfer template; 5-lower chamfer templates; 5.1-a first chamfer portion; 5.2-a second chamfer portion; 6, a transverse supporting rod; 7, a vertical supporting rod; 8-a chute; 9, a bolt; 10-demolding oil cylinder; 11-a sleeve; 12-a guide rod; 13-jacking oil cylinder.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1 to 3, the template structure of the present embodiment includes four parts, namely a top mold 2, an upper chamfer template 4, a side mold 3 and a lower chamfer template 5, wherein the top mold 2 is fixed at the upper end of the trolley 1, a lifting cylinder 13 for driving the trolley 1 and the template structure to move vertically is arranged at the lower end of the trolley 1, and when the top mold 2 needs to be demolded or closed, the top mold 2 can be demolded or closed by driving the lifting cylinder 13 to drive the trolley 1 and the top mold 2 to move vertically.
The side dies 3 are positioned on two lateral sides of the trolley 1, and a driving structure for driving the side dies 3 to demould and die are arranged between the trolley 1 and the side dies 3. As shown in fig. 1, the driving structure comprises a plurality of demolding cylinders 10, wherein the shell of each demolding cylinder 10 is hinged to the trolley 1, and the pushing end is hinged to the side mold 3.
The driving structure further comprises a guiding structure, as shown in fig. 1, the guiding structure comprises a sleeve 11 fixed on the trolley 1, the sleeve 11 is of a cylindrical structure with the axis parallel to the axis of the demolding cylinder 10, a guiding rod 12 capable of axially moving along the sleeve 11 is arranged in the sleeve 11 in a penetrating manner, one end of the guiding rod 12 is slidably connected with the sleeve 11, and the other end of the guiding rod is hinged to the side mold 3.
When the side mold 3 needs to be demolded or clamped, the side mold 3 moves along the axial direction of the sleeve 11 under the guiding action of the guide rod 12 by driving the demolding oil cylinder 10, so that demolding or clamping is realized.
The upper chamfer template 4 of this embodiment is hinged between the top mold 2 and the side mold 3, as shown in fig. 3, the two transverse ends of the top mold 2 are provided with sliding grooves 8, the sliding grooves 8 are long holes perpendicular to the upper chamfer template 4, the sliding grooves 8 are internally provided with bolts 9 which can slide in the sliding grooves 8, and the upper chamfer template 4 is slidably connected in the sliding grooves 8 through the bolts 9. The upper chamfer template 4 of this embodiment uses the driving force of the top mold 2 and the side mold 3 during demolding and mold closing, that is, the upper chamfer template 4 moves along with the top mold 2 and the side mold 3 during demolding or mold closing, and the chute 8 is an adjustment space reserved for the upper chamfer template 4. The side mold 3 is released or clamped by the release cylinder 10, and at this time, a part of the upper chamfer mold plate 4 connected with the side mold 3 moves along with the side mold 3.
As shown in fig. 1 to 2, the upper end of the lower chamfer template 5 of the present embodiment is hinged to the lower end of the side template 3, and the lower chamfer template 5 is a retractable and stretchable folding structure formed by a plurality of sections of templates. The lower chamfer template 5 comprises a first chamfer part 5.1 and a second chamfer part 5.2, wherein the upper end of the first chamfer part 5.1 is rotatably hinged to the lower end of the side die 3, and the lower end of the first chamfer part is rotatably hinged to the upper end of the second chamfer part 5.2 and forms a gallery lower end chamfer part template with the second chamfer part 5.2.
When the lower chamfer template 5 is subjected to demoulding or mould closing, the electric hoist or other power equipment drives the first chamfer part 5.1 to rotate around a hinge point with the side mould 3, and drives the second chamfer part 5.2 to rotate around a hinge point with the first chamfer part 5.1, so that the demoulding or mould closing of the lower chamfer template 5 can be realized through two times of rotation. The lower chamfer template 5 of this embodiment is a folded structure.
After the die assembly is completed, in order to fix the lower chamfer template 5, in this embodiment, a transverse supporting rod 6 is disposed between the two lower chamfer templates 5, as shown in fig. 1, the transverse supporting rod 6 is horizontally and transversely disposed, and two ends of the transverse supporting rod are respectively rotatably hinged to the two first chamfer portions 5.1. A vertical supporting rod 7 is arranged between the lower chamfering template 5 and the trolley 1, the vertical supporting rod 7 is arranged along the vertical direction, and the upper end and the lower end are respectively and rotatably hinged on the trolley 1 and the second chamfering part 5.2.
When the die is assembled, the jacking cylinder 13 is driven to push the trolley 1 and the whole die plate to move in place vertically, the demolding cylinder 10 drives the side die 3 and the upper chamfering die plate 4 to move in place horizontally, the first chamfering part 5.1 and the second chamfering part 5.2 are unfolded to enable the lower chamfering die plate 5 to extend in place, and the vertical supporting rod 7 and the transverse supporting rod 6 are arranged to fix the lower chamfering die plate 5, so that the die assembly is completed.
After pouring is completed, when demoulding is required, the vertical support rod 7 and the transverse support rod 6 are disassembled, the first chamfering part 5.1 and the second chamfering part 5.2 are lifted to enable the lower chamfering template 5 to be folded, the demoulding oil cylinder 10 is driven to enable the side mould 3 and the upper chamfering template 4 to move towards the trolley 1, and the jacking oil cylinder 13 is driven to enable the trolley 1 and the templates to descend, so that demoulding is completed.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a narrow space corridor construction template structure based on immersed tube prefabrication, includes platform truck (1), its characterized in that: the device also comprises a template; the template comprises a top die (2) fixed at the upper end of the trolley (1), side dies (3) connected to two sides of the trolley (1), an upper chamfering template (4) connected between the top die (2) and the side dies (3) and a lower chamfering template (5) hinged at the lower end of the side dies (3); the lower chamfer template (5) is a retractable and extensible folding structure formed by a plurality of sections of templates;
the lower chamfer template (5) comprises a first chamfer part (5.1) and a second chamfer part (5.2); the upper end of the first chamfering part (5.1) is rotatably hinged to the lower end of the side die (3), and the lower end of the first chamfering part is rotatably hinged to the upper end of the second chamfering part (5.2) and the second chamfering part (5.2) to form a gallery lower end chamfering part template;
a driving structure for driving the side mold (3) to release and mold is arranged between the trolley (1) and the side mold (3).
2. The construction template structure based on the narrow space gallery in immersed tube prefabrication as set forth in claim 1, wherein: a transverse supporting rod (6) is arranged between the two lower chamfer templates (5); the transverse supporting rods (6) are horizontally and transversely arranged, and two ends of each transverse supporting rod are respectively and rotatably hinged to the two first chamfer portions (5.1).
3. A narrow space corridor construction formwork structure in immersed tube prefabrication as claimed in claim 1 or 2, wherein: a vertical supporting rod (7) is arranged between the lower chamfering template (5) and the trolley (1); the vertical supporting rods (7) are arranged along the vertical direction, and the upper end and the lower end of each vertical supporting rod are respectively and rotatably hinged to the trolley (1) and the second chamfering part (5.2).
4. The construction template structure based on the narrow space gallery in immersed tube prefabrication as set forth in claim 1, wherein: the driving structure comprises a plurality of demoulding cylinders (10); the shell of the demolding oil cylinder (10) is hinged to the trolley (1), and the pushing end is hinged to the side mold (3).
5. The construction template structure based on the narrow space gallery in immersed tube prefabrication as set forth in claim 4, wherein: the driving structure comprises a sleeve (11) fixed on the trolley (1); the sleeve (11) is of a cylindrical structure with the axis parallel to the axis of the demolding cylinder (10), and a guide rod (12) capable of axially moving along the sleeve (11) is arranged in the sleeve (11) in a penetrating manner; one end of the guide rod (12) is connected with the sleeve (11) in a sliding way, and the other end of the guide rod is connected with the side die (3) in a hinged way.
6. The construction template structure based on the narrow space gallery in immersed tube prefabrication as set forth in claim 1, wherein: the lower end of the trolley (1) is provided with a jacking cylinder (13) for driving the trolley (1) and the templates to vertically move.
7. A narrow space corridor construction formwork structure in immersed tube prefabrication as claimed in claim 1 or 6, wherein: sliding grooves (8) are formed in the two transverse ends of the top die (2); the sliding groove (8) is a long hole perpendicular to the upper chamfer template (4), and a bolt (9) capable of sliding in the sliding groove (8) is arranged in the sliding groove (8) in a penetrating manner; the upper chamfer template (4) is connected in the chute (8) in a sliding way through a bolt (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910472281.3A CN110076888B (en) | 2019-05-31 | 2019-05-31 | Construction template structure based on immersed tube prefabrication middle and narrow space corridor |
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| CN201910472281.3A CN110076888B (en) | 2019-05-31 | 2019-05-31 | Construction template structure based on immersed tube prefabrication middle and narrow space corridor |
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| CN110076888A CN110076888A (en) | 2019-08-02 |
| CN110076888B true CN110076888B (en) | 2024-04-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110450279B (en) * | 2019-08-13 | 2020-04-28 | 中交第四航务工程局有限公司 | Dry dock system for pouring full-section precast concrete and arrangement method |
| CN111391074B (en) * | 2020-04-01 | 2020-12-15 | 中交第四航务工程局有限公司 | Immersed tube tunnel middle cavity template system and construction method |
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