CN215105387U - Larsen steel sheet pile and double-row space combined type foundation pit supporting structure of steel pipe pile - Google Patents
Larsen steel sheet pile and double-row space combined type foundation pit supporting structure of steel pipe pile Download PDFInfo
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- CN215105387U CN215105387U CN202121593932.3U CN202121593932U CN215105387U CN 215105387 U CN215105387 U CN 215105387U CN 202121593932 U CN202121593932 U CN 202121593932U CN 215105387 U CN215105387 U CN 215105387U
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Abstract
The utility model discloses a Larsen steel sheet pile and steel pipe pile double-row space combined foundation pit supporting structure, which comprises an inner row pile body, wherein the inner row pile body consists of an inner row steel pipe pile and an inner row Larsen steel sheet pile section; the Larsen steel plate pile section comprises at least two Larsen steel plate piles, each Larsen steel plate pile of the Larsen steel plate pile section and the adjacent Larsen steel plate pile are mutually hooked through respective second locking plates, and the second locking plates on two sides of the Larsen steel plate pile section and the first locking plates of the adjacent inner steel pipe piles are mutually hooked; the inner row of steel pipe piles are welded with backward extending first lock opening plates at intervals, and each backward extending first lock opening plate is correspondingly provided with a longitudinal Larsen steel plate pile section and an outer row of steel pipe piles. The Larsen steel sheet pile and steel pipe pile double-row space combined type foundation pit supporting structure is high in rigidity, strong in supporting performance and good in effect of resisting the lateral pressure of a soil body.
Description
Technical Field
The utility model relates to a building foundation ditch construction technical field specifically says a double pile body space combination formula underground structure by the common structure of larsen steel sheet pile and steel-pipe pile.
Background
In order to protect the safety of the construction of the underground main structure and the surrounding environment of the foundation pit, a supporting structure needs to be constructed on the side wall of the foundation pit to play roles of retaining, reinforcing and protecting. The common foundation pit supporting structure is generally that a circle of cast-in-situ bored piles are driven at the edge of a foundation pit to serve as fender piles, and a circle of cement mixing piles are constructed on the periphery of the circle of fender piles to serve as a waterproof curtain. However, the supporting structure has the disadvantages of slow construction speed, long construction period and high cost. The supporting structure formed by overlapping a plurality of Larsen steel sheet piles end to end also appears in the industry, and the supporting structure only needs to insert each Larsen steel sheet pile into the soil body and enables locking notches of each adjacent Larsen steel sheet pile to be overlapped, so that the construction speed is high, the construction period is short, the cost is relatively low, but the supporting structure has the biggest defect of insufficient rigidity, and the supporting effect is weak and insufficient for resisting the lateral pressure of the soil body especially in areas with poor soil conditions such as soft soil.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a rigidity is big, and bearing performance is strong, resists the effectual Larsen steel sheet pile of soil body lateral pressure and the double space combination formula underground structure of steel-pipe pile.
The technical solution of the utility model is to provide a Larsen steel sheet pile and steel pipe pile double-row space combined foundation pit supporting structure, which comprises an inner row pile body, wherein the inner row pile body consists of an inner row steel pipe pile and an inner row Larsen steel sheet pile section; two first locking plates are welded on the left side and the right side of the inner row of steel pipe piles, the inner row of Larsen steel plate pile sections comprise at least two Larsen steel plate piles, and two second locking plates are arranged on two flange plates on the two sides of each Larsen steel plate pile; each Larsen steel sheet pile of the inner Larsen steel sheet pile section and the adjacent Larsen steel sheet pile are hooked with each other through respective second locking plates, and the second locking plates on two sides of the inner Larsen steel sheet pile section and the first locking plates of the adjacent inner steel pipe pile are hooked with each other; the inner row of steel pipe piles are welded with backward extending first lock opening plates at intervals, each backward extending first lock opening plate is correspondingly provided with a longitudinal Larsen steel plate pile section and an outer row of steel pipe piles, and the front side of each outer row of steel pipe pile is provided with a first lock opening plate; the Larsen steel sheet pile section comprises a plurality of Larsen steel sheet piles, each Larsen steel sheet pile of the Larsen steel sheet pile section is hooked with an adjacent Larsen steel sheet pile through a respective second locking plate, and the second locking plate on the front side of the first Larsen steel sheet pile of the Larsen steel sheet pile section is hooked with the first locking plate extending backwards of the corresponding steel pipe pile in the inner row; and a second lock catch plate at the rear side of the last Larsen steel sheet pile of the longitudinal Larsen steel sheet pile section is hooked with a first lock catch plate at the front side of the corresponding outer-row steel pipe pile.
Compared with the prior art, the Larsen steel sheet pile and steel pipe pile double-row space combined type foundation pit supporting structure adopting the structure has the following advantages:
firstly, the supporting structure is convenient and quick to construct, and only the steel pipe piles and the Larsen steel plate piles are inserted into the soil body, and the locking plate plates of the adjacent piles are hooked with each other; compared with the traditional process of constructing the cast-in-situ bored pile and the waterproof curtain and waiting for the dryness and hardness of the cast-in-situ bored pile and the waterproof curtain in the prior art, the supporting structure of the utility model has the advantages of high construction speed, short period and relatively low cost; moreover, more importantly, compared with the structure which is formed by overlapping Larsen steel sheet piles in the prior art, the supporting structure is provided with the steel pipe piles with large depth, high strength and high rigidity at intervals, so that the rigidity and the bearing capacity of the supporting structure are obviously increased, and the effect of resisting the lateral pressure of a soil body is improved; moreover, from the perspective of spatial layout, besides the transverse inner row pile body of the foundation, a plurality of rows of vertical Larsen steel plate pile sections are additionally arranged, and the rear end of each longitudinal Larsen steel plate pile section is also provided with an outer row of steel pipe piles, so that the space combination type supporting structure is formed in a face-to-face mode, the rigidity and the bearing capacity are further increased, and the effect of resisting the lateral pressure of the soil body is further enhanced.
Preferably, two outer rows of Larsen steel plate pile sections and one transition steel pipe pile are arranged between every two adjacent and parallel columns of Larsen steel plate pile sections, two second locking plates on the inner sides of the two outer rows of Larsen steel plate pile sections are respectively hooked with two first locking plates of the transition steel pipe pile, and two second locking plates on the outer sides of the two outer rows of Larsen steel plate pile sections are respectively hooked with the first locking plates on the left sides or the right sides of the two outer rows of steel pipe piles; therefore, the outer row Larsen steel plate pile sections and the transition steel pipe piles are arranged at intervals to form a transverse outer row pile body, so that an integral supporting pattern with double-row spatial distribution of the inner row pile body and the outer row pile body is constructed, and the inner row pile body and the outer row pile body are connected through the multiple columns of longitudinal Larsen steel plate pile sections, so that the integrity and the rigidity are greatly improved, the supporting performance is remarkably improved, and the effect of resisting the lateral pressure of a soil body is greatly optimized.
Preferably, two corner Larsen steel plate pile sections and one corner steel pipe pile are arranged between every two adjacent and vertical columns of Larsen steel plate pile sections, two second locking plates on the inner sides of the two corner Larsen steel plate pile sections are respectively hooked with two first locking plates of the corner steel pipe piles, and two second locking plates on the outer sides of the two corner Larsen steel plate pile sections are respectively hooked with first locking plates on the inclined sides of the two steel pipe piles which are arranged outwards; like this, outer pile body has been add at the originally weak turning position of foundation ditch to this structure, has compensatied the defect that foundation ditch turning rigidity and bearing capacity are not enough, is showing firmness and the stability that has promoted this position.
Preferably, a sealing strip is arranged between the second locking port plate of each Larsen steel sheet pile of the inner row of pile bodies and the second locking port plate of the adjacent Larsen steel sheet pile or the first locking port plate of the adjacent inner row of steel pipe piles, and the sealing strip is screwed on the corresponding second locking port plate or first locking port plate through screws at the upper end and the lower end; therefore, the arrangement of the sealing strips obviously increases the waterproof sealing performance of the locking port connection between the adjacent pile bodies, and further enhances the waterproof efficiency of the whole supporting structure system; the waterproof pressure during the construction and pouring of the underground building in the foundation pit is reduced; and the installation and the dismantlement of sealing strip reasonable in design, during the installation, the spiro union is on the fore shaft board that corresponds steel-pipe pile or larsen steel sheet pile earlier, and is driven into the soil body along with integrative the inserting of pile body, and then pulls out the soil body along with integrative playing of pile body during the dismantlement, then tears the bolt open promptly and tear the convenience open.
Drawings
Fig. 1 is the structural schematic diagram of the double-row space combined type foundation pit supporting structure of larsen steel sheet piles and steel pipe piles in embodiment 1.
Fig. 2 is the structural schematic diagram of the double-row space combined type foundation pit supporting structure embodiment 2 of the larsen steel sheet pile and the steel pipe pile.
Fig. 3 is the utility model discloses enlarged structure schematic diagram of the corner of Larsen steel sheet pile and the double space combination formula underground structure supporting construction of steel-pipe pile embodiment 2.
Fig. 4 is the structural schematic diagram of the double-row space combined type foundation pit supporting structure embodiment 3 of the larsen steel sheet pile and the steel pipe pile.
Fig. 5 is an enlarged schematic view of a portion a of fig. 3.
Fig. 6 is an enlarged schematic view of a portion B of fig. 4.
Shown in the figure are 1, inner row pile bodies, 2, inner row steel pipe piles, 3, inner row Larsen steel plate pile sections, 4, first locking plates, 5, Larsen steel plate piles, 6, second locking plates, 7, longitudinal Larsen steel plate pile sections, 8, outer row steel pipe piles, 9, outer row Larsen steel plate pile sections, 10, transition steel pipe piles, 11, corner Larsen steel plate pile sections, 12, corner steel pipe piles, 13, sealing strips, 14 and screws.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
As shown in fig. 1, the utility model discloses Larsen steel sheet pile and double space combination formula underground structure's of steel-pipe pile embodiment 1, the basic embodiment of this application promptly, it includes interior row of pile body 1, and interior row of pile body 1 comprises interior row of steel-pipe pile 2 and interior row of Larsen steel sheet pile section 3.
Two first lock plates 4 on the left and right sides of each inner row of steel pipe piles 2 are welded. The inner larsen steel plate pile section 3 comprises at least two larsen steel plate piles 5, in the embodiment, the number of the inner larsen steel plate pile sections is two, certainly can be more than two, and two second locking hole plates 6 are arranged on two flange plates on two sides of each larsen steel plate pile 5; each Larsen steel sheet pile 5 of the inner Larsen steel sheet pile section 3 and the adjacent Larsen steel sheet pile 5 are hooked with each other through respective second locking plates 6, and the second locking plate 6 on the left side of one Larsen steel sheet pile 5 on the leftmost side of the inner Larsen steel sheet pile section 3 is hooked with the first locking plate 4 on the right side of the adjacent inner steel pipe pile 2; the second locking plate 6 on the right side of the rightmost Larsen steel sheet pile 5 of the inner row of Larsen steel sheet pile sections 3 is hooked with the first locking plate 4 on the left side of the adjacent inner row of steel pipe piles 2.
The inner row steel pipe piles 2 are welded with backward extending first lock opening plates 4 at intervals, in other words, odd number of the inner row steel pipe piles 2 such as 1, 3, 5, 7 or even number of the inner row steel pipe piles 2 are welded with backward extending first lock opening plates 4. Each first lock opening plate 4 extending backwards is correspondingly provided with a tandem Larsen steel plate pile section 7 and an outer row of steel pipe piles 8, and the front side of each outer row of steel pipe piles 8 is provided with a first lock opening plate 4. The tandem larsen steel sheet pile section 7 includes a plurality of larsen steel sheet piles 5, for example, 5 in this embodiment. Each Larsen steel sheet pile 5 of the longitudinal Larsen steel sheet pile section 7 is hooked with the adjacent Larsen steel sheet pile 5 through respective second locking plate 6, and the first Larsen steel sheet pile section 7 is also hooked with the second locking plate 6 at the front side of the most previous Larsen steel sheet pile 5 and the first locking plate 4 extending backwards of the corresponding inner row of steel pipe piles 2; and a second locking plate 6 at the rear side of the last Larsen steel plate pile 5 of the longitudinal Larsen steel plate pile section 7 is hooked with the first locking plate 4 at the front side of the corresponding outer row steel pipe pile 8.
As shown in fig. 2, fig. 3 and fig. 5, the difference between the embodiment 2 of the double-row space combined foundation pit supporting structure of the larsen steel sheet pile and the steel pipe pile of the present invention and the embodiment 1 is: two outer Larsen steel plate pile sections 9 and a transition steel pipe pile 10 are further arranged between every two adjacent and parallel longitudinal Larsen steel plate pile sections 7, two second locking plates 6 on the inner sides of the two outer Larsen steel plate pile sections 9 are respectively hooked with two first locking plates 4 of the transition steel pipe pile 10, and two second locking plates 6 on the outer sides of the two outer Larsen steel plate pile sections 9 are respectively hooked with the first locking plates 4 on the left side or the right side of the two outer Larsen steel pipe piles 8. In other words, the second locking plate 6 on the left side of the outer larsen steel plate pile section 9 on the left side is hooked with the first locking plate 4 on the right side of the outer steel pipe pile 8 on the left side; the second locking plate 6 on the right side of the outer larsen steel plate pile section 9 on the right side is hooked with the first locking plate 4 on the left side of the outer steel pipe pile 8 on the right side.
Two corner Larsen steel plate pile sections 11 and one corner steel pipe pile 12 are arranged between every two adjacent and vertical longitudinal Larsen steel plate pile sections 7, and two second locking plates 6 on the inner sides of the two corner Larsen steel plate pile sections 11 are respectively hooked with two first locking plates 4 of the corner steel pipe pile 12. The second locking plate 6 on the outer side of one corner Larsen steel plate pile section 11 is hooked with the first locking plate 4 extending out of the right upper corner of the outer row steel pipe pile 8 positioned at the left lower corner, and the second locking plate 6 on the outer side of the other corner Larsen steel plate pile section 11 is hooked with the first locking plate 4 extending out of the left lower corner of the outer row steel pipe pile 8 positioned at the right upper corner.
As shown in fig. 4 and 6, the embodiment 3 of the double-row space combined foundation pit supporting structure of the larsen steel sheet pile and the steel pipe pile of the present invention is different from the embodiment 1 in that: and a sealing strip 13 is arranged between the second locking plate 6 of each Larsen steel sheet pile 5 of the inner row pile body 1 and the second locking plate 6 of the adjacent Larsen steel sheet pile 5 or the first locking plate 4 of the adjacent inner row steel pipe pile 2, and the sealing strip 13 is screwed on the corresponding second locking plate 6 or first locking plate 4 through two screws 14 at the upper end and the lower end.
Claims (4)
1. The utility model provides a double space combination formula underground structure of larsen steel sheet pile and steel-pipe pile, its characterized in that: the pile comprises an inner row of pile bodies (1), wherein each inner row of pile body (1) consists of an inner row of steel pipe piles (2) and an inner row of Larsen steel plate pile sections (3); two first locking plates (4) are welded on the left side and the right side of the inner row of steel pipe piles (2), the inner row of Larsen steel plate pile sections (3) comprise at least two Larsen steel plate piles (5), and two second locking plates (6) are arranged on two flange plates on two sides of each Larsen steel plate pile (5); each Larsen steel plate pile (5) of the inner Larsen steel plate pile section (3) and the adjacent Larsen steel plate pile (5) are hooked with each other through respective second locking plates (6), and the second locking plates (6) on two sides of the inner Larsen steel plate pile section (3) are hooked with the first locking plates (4) of the adjacent inner steel pipe piles (2); the inner row of steel pipe piles (2) are welded with backward extending first lock opening plates (4) at intervals, each backward extending first lock opening plate (4) is correspondingly provided with a tandem Larsen steel plate pile section (7) and an outer row of steel pipe piles (8), and the front side of each outer row of steel pipe piles (8) is provided with a first lock opening plate (4); the Larsen steel plate pile section (7) comprises a plurality of Larsen steel plate piles (5), each Larsen steel plate pile (5) of the Larsen steel plate pile section (7) and the adjacent Larsen steel plate pile (5) are mutually hooked through respective second locking plates (6), and the second locking plate (6) on the front side of the first Larsen steel plate pile (5) of the Larsen steel plate pile section (7) is hooked with the first locking plate (4) which extends backwards of the corresponding steel pipe pile (2) in the inner row; and a second lock catch plate (6) at the rear side of the last Larsen steel plate pile (5) of the longitudinal Larsen steel plate pile section (7) is hooked with a first lock catch plate (4) at the front side of the corresponding outer-row steel pipe pile (8).
2. The double-row space combined type foundation pit supporting structure for the Larsen steel sheet pile and the steel pipe pile as claimed in claim 1, which is characterized in that: two outer Larsen steel plate pile sections (9) and a transition steel pipe pile (10) are arranged between every two adjacent and parallel longitudinal Larsen steel plate pile sections (7), two second locking plates (6) on the inner sides of the two outer Larsen steel plate pile sections (9) are respectively hooked with two first locking plates (4) of the transition steel pipe pile (10), and two second locking plates (6) on the outer sides of the two outer Larsen steel plate pile sections (9) are respectively hooked with the first locking plates (4) on the left side or the right side of the two outer Larsen steel pipe piles (8).
3. The double-row space combined type foundation pit supporting structure for Larsen steel sheet piles and steel pipe piles as claimed in claim 2, wherein: two corner Larsen steel plate pile sections (11) and a corner steel pipe pile (12) are arranged between every two adjacent and vertical longitudinal Larsen steel plate pile sections (7), two second locking plates (6) on the inner sides of the two corner Larsen steel plate pile sections (11) are respectively hooked with two first locking plates (4) of the corner steel pipe pile (12), and two second locking plates (6) on the outer sides of the two corner Larsen steel plate pile sections (11) are respectively hooked with first locking plates (4) on the inclined sides of two outer steel pipe piles (8).
4. The double-row space combined type foundation pit supporting structure for the Larsen steel sheet pile and the steel pipe pile as claimed in claim 1, which is characterized in that: and a sealing strip (13) is arranged between the second locking plate (6) of each Larsen steel sheet pile (5) of the inner row of pile bodies (1) and the second locking plate (6) of the adjacent Larsen steel sheet pile (5) or the first locking plate (4) of the adjacent inner row of steel pipe piles (2), and the sealing strip (13) is screwed on the corresponding second locking plate (6) or the corresponding first locking plate (4) through screws (14) at the upper end and the lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121593932.3U CN215105387U (en) | 2021-07-13 | 2021-07-13 | Larsen steel sheet pile and double-row space combined type foundation pit supporting structure of steel pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121593932.3U CN215105387U (en) | 2021-07-13 | 2021-07-13 | Larsen steel sheet pile and double-row space combined type foundation pit supporting structure of steel pipe pile |
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| CN215105387U true CN215105387U (en) | 2021-12-10 |
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| CN202121593932.3U Active CN215105387U (en) | 2021-07-13 | 2021-07-13 | Larsen steel sheet pile and double-row space combined type foundation pit supporting structure of steel pipe pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644472A (en) * | 2019-09-24 | 2020-01-03 | 上海建工四建集团有限公司 | Steel pipe pile assembly, foundation pit support structure and construction method thereof |
| CN114960623A (en) * | 2022-06-29 | 2022-08-30 | 湖北道泽勘测设计院有限公司 | Basic structure and construction method of PSLC construction method pile |
-
2021
- 2021-07-13 CN CN202121593932.3U patent/CN215105387U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644472A (en) * | 2019-09-24 | 2020-01-03 | 上海建工四建集团有限公司 | Steel pipe pile assembly, foundation pit support structure and construction method thereof |
| CN114960623A (en) * | 2022-06-29 | 2022-08-30 | 湖北道泽勘测设计院有限公司 | Basic structure and construction method of PSLC construction method pile |
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