CN212248275U - Steel sheet pile supporting construction who holds platform template simultaneously and support - Google Patents
Steel sheet pile supporting construction who holds platform template simultaneously and support Download PDFInfo
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- CN212248275U CN212248275U CN202021492045.2U CN202021492045U CN212248275U CN 212248275 U CN212248275 U CN 212248275U CN 202021492045 U CN202021492045 U CN 202021492045U CN 212248275 U CN212248275 U CN 212248275U
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Abstract
The utility model discloses a double as steel sheet pile supporting construction that cushion cap template supported, cover into tetragonal steel form including enclosing, the steel form outside is equipped with the steel sheet pile, and the steel sheet pile is laid the round as strutting the system along the steel form outside end to end in proper order, and the steel sheet pile top outside is equipped with encloses wailing, enclose wailing with it is fixed to pull back through the pull rod between the steel sheet pile, and adjacent enclosing wailing junction is fixed through the ring flange. The utility model discloses can reduce destruction and later stage road surface restoration engineering volume to original highway road surface, reduce earthwork excavation and foundation ditch backfill volume, lower to the requirement of construction scope, more reasonable in limited space, alleviateed the dead weight of template, reduce the cost and drop into, template engineering time shortens moreover for the engineering progress shortens construction cycle.
Description
Technical Field
The utility model relates to a bridge construction cushion cap foundation ditch excavation construction field specifically is a steel sheet pile supporting construction who doubles cushion cap template and support.
Background
The foundation pit steel sheet pile supporting technology is an extremely important technical composition in road and bridge engineering construction, wherein the steel sheet pile supporting effect is excellent, the dangerous situation treatment based on road section and roadbed penetration damage can be realized, the flood defense effect is good, and the protective capability is strong. The steel sheet pile can exert the advantage of high efficiency and skill, is an excellent building material, can be used for realizing the functions of dikes, retaining walls, water retaining walls and the like in building components or building components, and has wide application. In the road and bridge engineering foundation pit construction, the steel sheet pile support can play a role in promoting the engineering progress, the technology has better adaptability, the construction is simple and convenient, the efficiency is high, the cost is low, the water stopping effect meets the requirement, meanwhile, the technology has the advantage of flexible construction, the construction period and the engineering investment are greatly saved, and the technology is the cofferdam construction technology with advantages at present. The application of the steel sheet pile supporting technology is realized by equipment facilities such as a mechanical arm, a crawler crane, a vibration hammer, a static pressure pile planting machine and the like, and different construction equipment is selected based on different steel sheet piles. For example, a steel sheet pile with a length of no more than 12m is usually constructed by a steel sheet pile machine; when the length exceeds 12m, a mode of combining the crawler crane and the vibration hammer can be adopted. In the high-speed development of the transportation industry and the continuous expansion of the construction coverage range of traffic facilities, the overload phenomenon of part of road and bridge projects in China already occurs, so that the guarantee of the project quality and the project bearing capacity is very important in the road and bridge project construction. The foundation pit engineering is an important foundation of road and bridge engineering, the construction quality of the foundation pit engineering can greatly influence the road and bridge engineering quality, and when the steel sheet pile supporting technology is adopted for construction, the investment of construction economic cost can be reduced, and the investment of construction time cost is reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a double as steel sheet pile supporting construction that cushion cap formwork supported, reducible destruction and later stage road surface recovery engineering volume to original highway road surface provides the efficiency of construction.
The utility model provides an adopted technical scheme of its technical problem does: the steel sheet pile supporting structure serving as the template support of the bearing platform comprises a steel template which is enclosed to form a quadrangle, steel sheet piles are arranged on the outer side of the steel template, the steel sheet piles are sequentially arranged end to end along the outer side of the steel template to form a circle as a supporting system, wailing is arranged on the outer side of the top of each steel sheet pile, the wailing and the steel sheet piles are fixed in a back-pulling mode through pull rods, and the joints of the wailing adjacent to each other are fixed through flange plates.
Furthermore, wailing is provided with a walkway beam, and the walkway beam is provided with a bridge plate for construction vehicles to pass through.
The utility model also discloses a construction method is strutted to steel sheet pile that cushion cap formwork supported utilizes foretell one kind to hold the steel sheet pile supporting construction that the formwork supported, carries out following step concurrently:
firstly, installing a ring beam in place, then welding and forming the steel sheet pile, connecting four corner joints by using a flange plate after forming, driving the steel sheet pile into a preset position of a foundation pit by adopting a steel sheet pile driver, placing wails at the position 1m deep from the ground outside the steel sheet pile, and reversely drawing and fixing the steel sheet pile through a pull rod; then excavating a foundation pit with the depth of about 5.5 meters, and excavating a water collecting well with the depth of 50cm at the bottom of the foundation pit for placing a water suction pump so as to pump accumulated water in the foundation pit out; after the foundation pit is excavated and a pile head is chiseled, soil on the steel sheet pile is manually cleaned, a foundation bottom die is made of a concrete surface of a foundation bed course, four angular points of a bearing platform are measured and lofted, a stay wire is arranged on the steel sheet pile, a positioning rib is welded on the steel sheet pile and used as a steel template of the bearing platform in an installing and positioning mode, and sand is filled in a gap between the steel sheet pile and the steel template to support and reinforce the steel template.
The utility model has the advantages that:
1. the damage to the original road surface of the highway and the amount of later-period road surface recovery work are reduced;
2. the earth excavation and the foundation pit backfilling amount are reduced;
3. the requirement on the construction range is lower, and the construction method is more reasonable in limited space;
4. the self weight of the template is reduced, and the cost investment is reduced;
5. the construction time of the template is shortened, the engineering progress is accelerated, and the construction period is shortened.
Drawings
FIG. 1 is a schematic view of the present invention showing a forward cut structure;
fig. 2 is a top view of the structure of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the steel sheet pile supporting structure used as a template support of a bearing platform comprises a steel template 2 which is enclosed to form a quadrangle, steel sheet piles 1 are arranged on the outer side of the steel template, four steel sheet piles 1 are sequentially arranged along the outer side of the steel template 2 end to form a circle as a supporting system, wails 4 are arranged on the outer side of the top of each steel sheet pile 1, the wails 4 and the steel sheet piles 1 are fixed in a back-pull mode through pull rods 5, and joints of the wails 4 are connected through flanges 3; wailing 4 is further provided with a walkway beam 6, and a bridge passing plate 7 is mounted on walkway beam 6 and used for construction vehicles to pass through.
The utility model also discloses a construction method is strutted to steel sheet pile that cushion cap formwork supported utilizes foretell one kind to hold the steel sheet pile supporting construction that the formwork supported, carries out following step concurrently:
s1, firstly, installing a ring beam in place, then welding and forming a steel plate pile, and driving the steel plate pile into a preset position of a foundation pit by adopting a steel plate pile driver; after the steel sheet piles are welded and formed, the four corner joints are connected by using flange plates, so that the steel sheet piles are convenient to disassemble, assemble and transport; for not influencing the integral hoisting of the steel bars in the lower process, wailing is arranged at the position, 1m deep from the ground, of the outer side of the steel sheet pile, the steel sheet pile is fixed through the pull rod in a reverse pulling mode, the steel sheet pile fixing device has the effect of fixing the steel sheet pile, and the steel sheet pile fixing device is used as a guide frame when the steel sheet pile is driven, so that the correct and vertical driving position of the steel sheet pile is guaranteed.
S2, excavating a foundation pit, wherein the depth is about 5.5 meters, the PC200 excavator is used for primary excavation of the foundation pit, and because silt in the corners of the steel sheet piles is blocked by the pile heads and is not easy to excavate, when the large excavator excavates the pile heads to expose half of the pile heads, the small excavator is hoisted into the silty soil in the corners of the steel sheet piles excavated by the bearing platform, and when the large excavator excavates the pile heads to about 30cm away from the bottom, the PC30 excavator is used for excavating the soil around the pile heads to the designed elevation, so that reworking caused by over excavation is avoided. And additionally, a water collecting well with the depth of 50cm is dug at the bottom of the foundation pit and used for placing a water suction pump so as to conveniently pump the accumulated water of the foundation pit.
And S3, after a pile head is chiseled after a foundation pit is excavated, manually cleaning soil on the steel sheet pile, taking a concrete surface of a base cushion layer as a base bottom die, measuring and lofting four angular points of the bearing platform and pulling wires on the steel sheet pile, welding bearing platform template positioning ribs on the steel sheet pile by using a hanging hammer as a bearing platform steel template for installation and positioning, wherein the template uses a 16mm steel plate, the template support is the steel sheet pile and the positioning ribs welded on the steel sheet pile, and sand is filled in a gap between the steel sheet pile and the steel template to support and reinforce the template.
The utility model discloses on having been applied to ancient god's highway at present, ancient god's highway is 24m wide, and the construction is enclosed to cover for 15m, and the scope of construction is limited, has adopted according to this the utility model discloses a steel sheet pile cofferdam is template support, ring beam external stay concurrently, and the cushion cap template uses the construction process of 16mm thick steel sheet, and cushion cap excavation border expands 1.1m outward for the cushion cap sideline, cushion cap excavation supporting system adopts to place walking beam (3I45a I-steel) and lays bridge plate (1cm thick steel sheet) and is used for the current use of construction vehicle, and the cushion cap template uses 16mm thick steel sheet, and the steel sheet pile encloses to be waited, pull rod, ring flange are constituteed as excavation supporting, and wherein the welding cushion cap template locating rib is template support on the steel sheet pile concurrently, has realized reducing excavation size.
The above mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope covered by the present invention.
Claims (2)
1. The steel sheet pile supporting structure capable of being used as a bearing platform formwork support is characterized by comprising a steel formwork which is enclosed to form a quadrilateral, steel sheet piles are arranged on the outer side of the steel formwork, a circle of steel sheet piles is sequentially arranged along the outer side of the steel formwork end to serve as a supporting system, wales are arranged on the outer side of the top of each steel sheet pile, the wales and the steel sheet piles are fixed in a back-pulling mode through pull rods, and the joints of the adjacent wales are fixed through flange plates.
2. The steel sheet pile supporting structure used as a template support of a cushion cap as claimed in claim 1, wherein a walkway beam is further arranged on the wails, and a bridge plate is arranged on the walkway beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021492045.2U CN212248275U (en) | 2020-07-24 | 2020-07-24 | Steel sheet pile supporting construction who holds platform template simultaneously and support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021492045.2U CN212248275U (en) | 2020-07-24 | 2020-07-24 | Steel sheet pile supporting construction who holds platform template simultaneously and support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212248275U true CN212248275U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021492045.2U Active CN212248275U (en) | 2020-07-24 | 2020-07-24 | Steel sheet pile supporting construction who holds platform template simultaneously and support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212248275U (en) |
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2020
- 2020-07-24 CN CN202021492045.2U patent/CN212248275U/en active Active
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