CN211498896U - Steel sheet pile cofferdam prefabricated supporting structure convenient to system conversion - Google Patents
Steel sheet pile cofferdam prefabricated supporting structure convenient to system conversion Download PDFInfo
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- CN211498896U CN211498896U CN201921977455.3U CN201921977455U CN211498896U CN 211498896 U CN211498896 U CN 211498896U CN 201921977455 U CN201921977455 U CN 201921977455U CN 211498896 U CN211498896 U CN 211498896U
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Abstract
The utility model discloses a steel sheet pile cofferdam prefabricated bearing structure convenient to system conversion, include: wailing; the two-way connecting joints are arranged and are all fixed on the wails, and the two-way connecting joints are provided with two end plates facing different directions; the inner support is provided with a plurality of inner supports, end plates are arranged at two ends of each inner support, and the end plates at two ends of each inner support are just assembled with one end plate bolt of the two corresponding bidirectional connecting joints into a whole. The utility model has the advantages of maneuverability is strong, the component degree of assemblability is high, has reduced the potential safety hazard that the support was traded in the steel sheet pile cofferdam, has improved support system conversion and material turnover availability factor in the cofferdam, and reduction of erection time reduces construction cost.
Description
Technical Field
The utility model relates to a steel sheet pile cofferdam construction technical field. More specifically, the utility model relates to a steel sheet pile cofferdam prefabricated bearing structure convenient to system conversion.
Background
In the steel sheet pile cofferdam structure, a structural system consisting of wails and inner supports is used as a supporting point of the steel sheet pile structure in the processes of foundation pit excavation, water pumping, bearing platform and pier stud construction, and the number of supporting points and the strength and rigidity of the supporting structure are all of great importance. At present, steel sheet pile wailing and an inner support are mostly connected by welding, and are troublesome to install and disassemble. The block prefabrication and the field welding are adopted, the field labor intensity is high, the operation risk is high, and a large amount of welding materials are consumed; the whole prefabrication is adopted, the hoisting equipment is hoisted and lowered down integrally, and the high requirements on the prefabrication site and the transportation and hoisting equipment are met. When the system is changed and the later-stage supporting system is dismantled, a gas cutting method is adopted, so that the turnover use of the supporting structure is not facilitated, and the waste of materials is caused.
Wailing and inner support are processed in blocks, and are connected into a whole by bolts to be implemented in partial projects. However, when the system is changed, the length of the newly installed internal support structure is difficult to adjust and adapt because the sheet piles and the support system are deformed. Moreover, wailing and inner support are mostly in stress construction, and when an old support is dismantled, the dismantling difficulty is easily caused due to the fact that bending moment and pressure cannot be released, and the potential safety hazard of construction is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steel sheet pile cofferdam prefabricated bearing structure convenient to system conversion, its maneuverability is strong, component prefabricated degree is high.
In order to achieve these objects and other advantages in accordance with the purpose of the invention, a steel sheet pile cofferdam fabricated support structure convenient for system conversion is provided, comprising: wailing; the two-way connecting joints are arranged and are all fixed on the wails, and the two-way connecting joints are provided with two end plates facing different directions; the inner support is provided with a plurality of inner supports, end plates are arranged at two ends of each inner support, and the end plates at two ends of each inner support are just assembled with one end plate bolt of the two corresponding bidirectional connecting joints into a whole.
Preferably, the wailing comprises a plurality of wailing units, two end portions of each wailing unit are provided with connecting plates, the periphery of each wailing unit protrudes out of the periphery of each wailing unit, and adjacent wailing units are assembled into a whole through a pair of connecting plate bolts.
Preferably, a plurality of rib plates are arranged between the wailing unit and the connecting plate and between the inner support side wall and the end plate of the inner support side wall.
Preferably, the periphery of the inner support end plate is smaller than that of the bidirectional connecting joint, a pair of jack supports are symmetrically arranged on the side wall of one end of the inner support, a jack is arranged in the jack, and the jack faces and is arranged to be capable of tightly abutting against the bidirectional connecting joint end plate.
Preferably, an inner reinforcing plate is provided inside the inner support.
Preferably, a copy pad space is reserved between the inner support end plate and the bidirectional connecting joint end plate, and a backing plate is arranged in the copy pad space.
The utility model discloses at least, include following beneficial effect:
the steel sheet pile cofferdam support replacing structure has the advantages of being strong in construction operability and high in component assembling degree, reducing potential safety hazards of support replacing of the steel sheet pile cofferdam, improving supporting system conversion and material turnover using efficiency in the cofferdam, shortening construction period and reducing construction cost.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic plan view of the steel sheet pile cofferdam of the present invention;
fig. 2 is a longitudinal schematic view of the inner support system conversion connection of the present invention;
fig. 3 is a transverse schematic view of the transition connection of the internal support system of the present invention;
fig. 4 is an illustration of wailing connection according to the present invention.
Description of reference numerals:
1. the steel sheet pile comprises 2 wails, 3 a connecting plate, 4 a bidirectional connecting joint, 5 an inner support, 51 an original inner support, 52 a new inner support, 6 a support, 7 a jack, 8 a rib plate, 9 an end plate, 10 a reinforcing plate, 11 and a base plate.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the utility model provides a steel sheet pile cofferdam assembled bearing structure convenient to system conversion, include: wailing 2; a plurality of two-way connecting joints 4 are arranged and fixed on the wails 2, and two end plates 9 facing to different directions are arranged on the two-way connecting joints 4; the inner support 5 is provided with a plurality of inner supports, end plates 9 are arranged at two ends of each inner support 5, and the end plates 9 at two ends of each inner support 5 are respectively and exactly assembled with one end plate 9 of the two corresponding bidirectional connecting joints 4 into a whole through bolts. Wailing 2 comprises a plurality of wailing units, two end portions of each wailing unit are provided with connecting plates 3, the periphery of each wailing unit protrudes out of the periphery of each wailing unit, and adjacent wailing units are assembled into a whole through a pair of connecting plates 3.
In the technical scheme, the steel sheet pile cofferdam structure comprises a steel sheet pile 1, wailing 2 and an inner support 5, and the steel sheet pile 1, wailing 2 and inner support are cooperatively stressed to jointly resist the constantly-changing soil pressure, water pressure and the like in the construction processes of foundation pit excavation, water pumping and the like. Wailing 2 and inner support 5 form a frame structure system, serve as a supporting point of a supporting structure of the steel sheet pile 1, and are arranged into multiple layers according to conditions such as foundation pit excavation depth, bearing platform water depth and the like. According to the structural style and the lifting capacity of the lifting equipment, wailing 2 and inner support 5 are prefabricated in blocks, and the blocks are connected through bolts. Wailing 2 assembles the node and welds connecting plate 3, reserve bolt hole in advance, assembles into an entirety at the assembly platform through the bolt. At the support changing position of the inner support 5, a bidirectional connecting joint 4 is arranged on the wailing 2 in advance, one end of the bidirectional connecting joint is connected with the original inner support 51, and the other end of the bidirectional connecting joint is connected with the new inner support 52. Before the construction of the pier body, a new inner support 52 is installed, and then the original inner support 51 which conflicts with the pier body is removed.
In another technical scheme, a plurality of rib plates 8 are arranged between the wailing unit and the connecting plate 3, between the side wall of the inner support 5 and the end plate 9 of the inner support, and an inner reinforcing plate 10 is arranged inside the inner support 5 to increase the strength.
In another technical scheme, the periphery of the end plate 9 of the inner support 5 is smaller than the periphery of the bidirectional connecting joint 4, a pair of jack supports 6 is symmetrically arranged on the side wall of one end of the inner support 5, a jack 7 is arranged in the jack supports, and the jack 7 faces and is arranged to be capable of tightly abutting against the end plate 9 of the bidirectional connecting joint 4.
In the technical scheme, the jack 7 is arranged to ensure that the stress of the structure is safer. When the steel sheet pile is installed, the length of the inner support 5 can be adjusted by using the jack 7, so that the steel sheet pile is suitable for deformation of wailing 2 of the steel sheet pile 1; when the device is disassembled, the jack 7 is used for releasing the axial force. The bidirectional connecting joint 4 only needs to be connected with the inner support 5 through bolts, but when the inner support 5 of the cofferdam is in a stress state, a jack 7 is needed, a jack support 6 needs to be arranged at one end of each inner support 5, the stress has a dynamic process, and the jack 7 is needed for adjustment.
In another technical scheme, a shoveling pad space is reserved between the end plate 9 of the inner support 5 and the end plate 9 of the bidirectional connecting joint 4, and a backing plate 11 is arranged in the shoveling pad space.
In the technical scheme, the inner support 5 is used for replacing the two-way connecting joint 4, the jack support 6 is arranged, a copying space is reserved between the connecting end plate 9 of the inner support 5 and the two-way connecting joint 4, the backing plate 11 is arranged in the inner support, the inner support 5 can be conveniently mounted and dismounted, the length of the inner support 5 can be adjusted to adapt to the deformation of the steel sheet pile 1 and wails 2 in the construction, and after the inner support 5 is dismounted, the structural stress can be safely and orderly adjusted and distributed, so that the replacement work can be safely carried out.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (6)
1. The utility model provides a steel sheet pile cofferdam prefabricated bearing structure convenient to system conversion which characterized in that includes:
wailing;
the two-way connecting joints are arranged and are all fixed on the wails, and the two-way connecting joints are provided with two end plates facing different directions;
the inner support is provided with a plurality of inner supports, end plates are arranged at two ends of each inner support, and the end plates at two ends of each inner support are just assembled with one end plate bolt of the two corresponding bidirectional connecting joints into a whole.
2. The steel sheet pile cofferdam assembled supporting structure convenient for system conversion as recited in claim 1, wherein said wails include a plurality of wails, both ends of said wails are provided with connecting plates, the periphery of each wail protrudes out of the periphery of each wail, and adjacent wails are assembled into a whole by a pair of connecting plate bolts.
3. The steel sheet pile cofferdam assembled supporting structure convenient for system conversion as recited in claim 2, wherein a plurality of rib plates are arranged between the wailing unit and the connecting plate, and between the inner supporting side wall and the end plate thereof.
4. The steel sheet pile cofferdam assembly supporting structure for facilitating system conversion as claimed in claim 1, wherein the inner support end plate periphery is smaller than the bidirectional connecting joint periphery, a pair of jack supports are symmetrically arranged on one end side wall of the inner support, a jack is arranged in the jack supports, and the jack is faced and arranged to tightly abut against the bidirectional connecting joint end plate.
5. The steel sheet pile cofferdam assembled supporting structure to facilitate the system conversion of claim 1, wherein the inner support is internally provided with an inner reinforcing plate.
6. The steel sheet pile cofferdam assembly supporting structure convenient for system conversion as recited in claim 1, characterized in that a shoveling space is reserved between the inner supporting end plate and the two-way connecting joint end plate, and a backing plate is arranged in the shoveling space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921977455.3U CN211498896U (en) | 2019-11-15 | 2019-11-15 | Steel sheet pile cofferdam prefabricated supporting structure convenient to system conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921977455.3U CN211498896U (en) | 2019-11-15 | 2019-11-15 | Steel sheet pile cofferdam prefabricated supporting structure convenient to system conversion |
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| CN211498896U true CN211498896U (en) | 2020-09-15 |
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| CN201921977455.3U Active CN211498896U (en) | 2019-11-15 | 2019-11-15 | Steel sheet pile cofferdam prefabricated supporting structure convenient to system conversion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924411A (en) * | 2019-11-15 | 2020-03-27 | 中交武汉港湾工程设计研究院有限公司 | Steel sheet pile cofferdam prefabricated supporting structure convenient to system conversion |
-
2019
- 2019-11-15 CN CN201921977455.3U patent/CN211498896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924411A (en) * | 2019-11-15 | 2020-03-27 | 中交武汉港湾工程设计研究院有限公司 | Steel sheet pile cofferdam prefabricated supporting structure convenient to system conversion |
| CN110924411B (en) * | 2019-11-15 | 2024-06-14 | 中交武汉港湾工程设计研究院有限公司 | Steel sheet pile cofferdam assembled supporting structure convenient for system conversion |
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