CN217629952U - Larsen steel sheet pile and miniature steel-pipe pile combined foundation pit supporting structure - Google Patents
Larsen steel sheet pile and miniature steel-pipe pile combined foundation pit supporting structure Download PDFInfo
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- CN217629952U CN217629952U CN202221105481.9U CN202221105481U CN217629952U CN 217629952 U CN217629952 U CN 217629952U CN 202221105481 U CN202221105481 U CN 202221105481U CN 217629952 U CN217629952 U CN 217629952U
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Abstract
The utility model discloses a Larsen steel sheet pile and miniature steel-pipe pile combined foundation pit supporting structure, including Larsen steel sheet pile, steel sheet, shaped steel waist rail, miniature steel-pipe pile and slip casting hole, larsen steel sheet pile is connected with shaped steel waist rail through the steel sheet, and one side of shaped steel waist rail is connected with miniature steel-pipe pile through the sealing plate, is provided with a plurality of slip casting holes on the miniature steel-pipe pile; the miniature steel pipe pile is obliquely arranged on the lower portion of the ground surface, and a plurality of angle steel barbs are arranged on the miniature steel pipe pile. The utility model discloses set up miniature steel-pipe pile in the hole, can not adopt the hole outer support system and provide effectual solution to the higher engineering of foundation ditch deformation requirement to the foundation ditch, and solved simultaneously and adopted the inclined throwing to prop or support construction period in the level longer, influence the difficult problem of major structure construction progress.
Description
Technical Field
The utility model belongs to the technical field of the building foundation ditch construction, concretely relates to excavation supporting construction of combination of larsen steel sheet pile and miniature steel-pipe pile.
Background
The Larsen steel sheet pile is a hot-rolled (or cold-formed) profile steel with a lock catch, and is driven into the steel sheet pile to be mutually connected and occluded by the lock catch to form a continuous steel sheet pile enclosure wall for retaining soil and stopping water, so that the construction is convenient and fast, the steel sheet pile can be pulled out after the foundation pit construction is finished, the steel sheet pile can be recycled, the economy is better, and the like. In the foundation pit project which has strict requirements on the deformation of the foundation pit and cannot adopt an external foundation pit supporting system such as Larsen steel sheet piles and anchor anchors due to site limitations or policy requirements, the use of the Larsen steel sheet pile supporting structure is limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a supporting construction of foundation ditch of larsen steel sheet pile and miniature steel-pipe pile combination sets up miniature steel-pipe pile in the hole, can not adopt to hole outer support system and provide effectual solution to the higher engineering of foundation ditch deformation requirement to the foundation ditch, and solved simultaneously and adopted the bracing of throwing or the level in support construction period longer, influence the difficult problem of major structure construction progress.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a Larsen steel sheet pile and miniature steel pipe pile combined foundation pit supporting structure comprises a Larsen steel sheet pile, a steel plate, a profile steel waist beam, a miniature steel pipe pile and grouting holes, wherein the Larsen steel sheet pile is connected with the profile steel waist beam through the steel plate, one side of the profile steel waist beam is connected with the miniature steel pipe pile through a sealing plate, and the miniature steel pipe pile is provided with a plurality of grouting holes; the miniature steel pipe pile is obliquely arranged on the lower portion of the ground surface, and a plurality of angle steel barbs are arranged on the miniature steel pipe pile.
Furthermore, the Larsen steel sheet pile is a U-shaped new IV-shaped steel sheet pile, and the cross-sectional dimension of the Larsen steel sheet pile is 400 multiplied by 170mm.
Further, the section steel wale and the Larsen steel sheet pile are welded through a steel plate; the steel plate is low-alloy high-strength steel with the thickness of 2cm, and the height of the welding end of the steel plate is 150mm higher than that of the two sides of the section steel waist rail; the height of the welding seam of the steel plate is 8mm-10mm.
Furthermore, the sealing plate is made of low-alloy high-strength steel with the thickness of 2cm, and the width of the two sides of the sealing plate is larger than that of the miniature steel pipe pile by 100mm.
Furthermore, wedge-shaped cushion blocks are arranged in the middle of the sealing plate and the waist beam of the section steel.
Further, the outer diameter of the miniature steel pipe pile is larger than 219mm, the distance between grouting holes in the miniature steel pipe pile is 500mm, and the aperture of each grouting hole is 8-10 mm.
Further, the inclination angle of the miniature steel pipe pile is 45-60 degrees.
Compared with the prior art, the utility model discloses one of following beneficial effect has at least:
1. the whole Larsen steel sheet pile is arranged on the ground surface, the whole miniature steel pipe pile is buried underground through the steel sheet (2), the section steel waist beam (3), the sealing plate and the miniature steel pipe pile, pouring is carried out, the supporting bearing capacity of the miniature steel pipe is improved, and the problem that the construction period of the inclined throwing support or the horizontal inner support is long and the construction progress of a main structure is influenced is solved.
2. The structure can be recycled after construction, is low-carbon and green, and improves economic benefits.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a plan view of the larsen steel sheet pile of the present invention.
Fig. 3 is a schematic view of a partial structure of the wedge frame of the present invention.
In the figure: 1-Larsen steel sheet pile, 2-steel sheet, 3-section steel waist rail, 4-sealing plate, 5-miniature steel pipe pile, 6-grouting hole and 7-angle steel barb.
Detailed Description
In order to make the purpose, technical scheme and advantages of the present invention more clear and more obvious, the following is combined with the attached drawings
And an embodiment of the present invention will be described in further detail. It should be understood that the particulars described herein are illustrative
The examples are provided only for explaining the present invention and are not intended to limit the present invention.
In the description of the present invention, it is to be understood that "front, rear, upper, lower, left, right", "inner,
The directions or positional relationships indicated by the outer, bottom, top, etc. are generally based on the directions or positions shown in the drawings
Relationships are merely for convenience of description and simplicity of description, and where not otherwise stated, these are
The directional terms do not indicate or imply that the referenced device or element must have a particular orientation or be in a particular direction
Bit configuration and operation, and therefore, should not be construed as limiting the scope of the present invention.
Example 1
Referring to fig. 1-3, the foundation pit supporting structure combining the Larsen steel sheet pile and the miniature steel pipe pile comprises the Larsen steel sheet pile (1), a steel plate (2), a section steel waist beam (3), the miniature steel pipe pile (5) and grouting holes (6), wherein the Larsen steel sheet pile (1) is connected with the section steel waist beam (3) through the steel plate (2), one side of the section steel waist beam (3) is connected with the miniature steel pipe pile (5) through a sealing plate (4), and the miniature steel pipe pile (5) is provided with a plurality of grouting holes (6); the miniature steel pipe pile (5) is obliquely arranged on the lower part of the ground surface, and a plurality of angle steel barbs (7) are arranged on the miniature steel pipe pile (5); the Larsen steel plate pile (1) adopts a U-shaped new IV-type steel plate pile, and the cross section of the Larsen steel plate pile (1) is 400 multiplied by 170mm; in the above scheme, whole Larsen steel sheet pile (1) is connected with miniature steel-pipe pile slope, forms triangular structure with ground to through pouring the whole stability of hiring of reinforcing, formation supporting construction that can be fine, not only convenient to use can dismantle in addition when needs, repeated recovery.
Example 2:
in the embodiment, the first connecting rod 2 is further described on the basis of the prior embodiment 1, and the section steel wale (3) and the Larsen steel sheet pile (1) are welded through the steel sheet (2); the steel plate (2) is low-alloy high-strength steel with the thickness of 2cm, and the height of the welding end of the steel plate (2) is 150mm higher than that of the two sides of the section steel waist beam (3); the height of a welding seam of the steel plate (2) is 9mm; the sealing plate (4) is made of low-alloy high-strength steel with the thickness of 2cm, and the width of the two sides of the sealing plate (4) is larger than 100mm of the miniature steel pipe pile (5); the whole equipment joint adopts a welding mode, the structural strength is higher, the sealing plate part adopts low-alloy high-strength steel, the welding performance is good, the cold brittleness tendency, the notch and the aging sensitivity are lower, and the corrosion resistance to atmosphere, seawater and the like is better
Example 3:
in this embodiment, a sealing plate (4) is further described on the basis of the existing embodiment 1, and wedge-shaped cushion blocks are arranged in the middle of the sealing plate (4) and a steel wale (3); the outer diameter of the miniature steel pipe pile (5) is larger than 219mm, the distance between grouting holes (6) on the miniature steel pipe pile (5) is 500mm, and the aperture of the grouting holes (6) is 8.5mm; the inclination angle of the miniature steel pipe pile (5) is 50 degrees; the wedge cushion can be added according to needs enthusiasm, and the stability is stronger after being convenient for imbed.
The utility model discloses a foundation pit supporting structure construction method, including following step:
s1, determining the types and the pile lengths of a Larsen steel plate pile (1) and a miniature steel pipe pile (5) according to site conditions and computational analysis;
s2, determining the form of the section steel wale (3) and the number and thickness of steel plates forming the section steel wale (3) according to the site condition and the construction condition and the types and sizes of the Larsen steel sheet pile (1) and the miniature steel pipe pile (5);
s3, determining the sizes of a steel plate (2) for connecting the Larsen steel plate pile and the section steel waist beam and a sealing plate (4) of the miniature steel pipe pile according to the site condition and the construction condition and the sizes of the section steel waist beam (3) and the miniature steel pipe pile (5);
s4, constructing a miniature steel pipe pile (5), obliquely inserting the miniature steel pipe pile (5) into a soil layer, and performing pile side grouting through a grouting hole (6) in the miniature steel pipe pile (5) to improve the supporting bearing capacity of the miniature steel pipe pile (5);
s5, constructing the Larsen steel sheet pile (1);
s6, excavating a foundation pit to 0.5m below the designed elevation of the profile steel waist beam (3), constructing the profile steel waist beam (3), welding the profile steel waist beam (3) with the Larsen steel sheet pile (1) through a steel plate (2), welding with the miniature steel pipe pile (5) through a sealing plate (4), and leveling by using a wedge-shaped cushion block if the sealing plate (4) and the profile steel waist beam (3) cannot be smoothly welded;
s7, continuously excavating the foundation pit to the bottom of the pit;
s8, the joint of the miniature steel pipe pile and the main structure is waterproof, the main structure is poured, a part of fertilizer grooves are backfilled, the miniature steel pipe pile is cut off, and the miniature steel pipe pile and the steel plate pile are recycled.
The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. In a further aspect of the present invention,
when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one or more other embodiments
It is also within the scope of the present disclosure for the embodiments to embody such features, structures, or characteristics.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (7)
1. The utility model provides a foundation ditch supporting construction of combination of larsen steel sheet pile and miniature steel-pipe pile, includes larsen steel sheet pile (1), steel sheet (2), shaped steel waist rail (3), miniature steel-pipe pile (5) and slip casting hole (6), its characterized in that: the Larsen steel plate pile (1) is connected with the section steel waist beam (3) through a steel plate (2), one side of the section steel waist beam (3) is connected with the miniature steel pipe pile (5) through a sealing plate (4), and the miniature steel pipe pile (5) is provided with a plurality of grouting holes (6); miniature steel-pipe pile (5) slope sets up in earth's surface lower part, and is provided with a plurality of angle steel barbs (7) on miniature steel-pipe pile (5).
2. The foundation pit supporting structure of larsen steel sheet pile and miniature steel pipe pile combination according to claim 1, characterized in that: the Larsen steel plate pile (1) is a U-shaped new IV-shaped steel plate pile, and the cross-sectional dimension of the Larsen steel plate pile (1) is 400 multiplied by 170mm.
3. The foundation pit supporting structure combining the Larsen steel plate pile and the miniature steel pipe pile as claimed in claim 1, wherein: the section steel waist beam (3) and the Larsen steel plate pile (1) are welded through a steel plate (2); the steel plate (2) is low-alloy high-strength steel with the thickness of 2cm, and the height of the welding end of the steel plate (2) is 150mm higher than that of the two sides of the section steel waist beam (3); the height of the welding seam of the steel plate (2) is 8mm-10mm.
4. The foundation pit supporting structure of larsen steel sheet pile and miniature steel pipe pile combination according to claim 3, characterized in that: the sealing plate (4) is made of low-alloy high-strength steel with the thickness of 2cm, and the width of the two sides of the sealing plate (4) is larger than that of the miniature steel pipe pile (5) by 100mm.
5. The foundation pit supporting structure combining the Larsen steel plate pile and the miniature steel pipe pile as claimed in claim 1, wherein: and wedge-shaped cushion blocks are arranged in the middle of the sealing plate (4) and the profiled steel wale (3).
6. The foundation pit supporting structure combining the Larsen steel plate pile and the miniature steel pipe pile as claimed in claim 1, wherein: the outer diameter of the miniature steel pipe pile (5) is larger than 219mm, the distance between grouting holes (6) in the miniature steel pipe pile (5) is 500mm, and the aperture of the grouting holes (6) is 8mm-10mm.
7. The foundation pit supporting structure combining the Larsen steel plate pile and the miniature steel pipe pile as claimed in claim 1, wherein: the inclination angle of the miniature steel pipe pile (5) is 45-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221105481.9U CN217629952U (en) | 2022-05-10 | 2022-05-10 | Larsen steel sheet pile and miniature steel-pipe pile combined foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221105481.9U CN217629952U (en) | 2022-05-10 | 2022-05-10 | Larsen steel sheet pile and miniature steel-pipe pile combined foundation pit supporting structure |
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| Publication Number | Publication Date |
|---|---|
| CN217629952U true CN217629952U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221105481.9U Active CN217629952U (en) | 2022-05-10 | 2022-05-10 | Larsen steel sheet pile and miniature steel-pipe pile combined foundation pit supporting structure |
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|---|---|
| CN (1) | CN217629952U (en) |
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2022
- 2022-05-10 CN CN202221105481.9U patent/CN217629952U/en active Active
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