CN219060069U - Pile-beam combined supporting structure suitable for foundation pit continuous external corner reinforcement - Google Patents
Pile-beam combined supporting structure suitable for foundation pit continuous external corner reinforcement Download PDFInfo
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- CN219060069U CN219060069U CN202223285103.6U CN202223285103U CN219060069U CN 219060069 U CN219060069 U CN 219060069U CN 202223285103 U CN202223285103 U CN 202223285103U CN 219060069 U CN219060069 U CN 219060069U
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Abstract
The utility model relates to a pile-beam combined supporting structure suitable for continuous external corner reinforcement of a foundation pit, which comprises a plurality of supporting piles vertically arranged side by side on the contour line of the foundation pit, wherein reinforced concrete crown beams are arranged at the top ends of all the supporting piles, at least one reinforced concrete supporting beam is connected between the reinforced concrete crown beams corresponding to the upper ends of two sides of the internal corners of the contour line of the foundation pit, a plurality of anchor piles are arranged on the connecting line between adjacent internal corners of the contour line of the foundation pit at intervals, at least one reinforced concrete pull beam is connected between the upper ends of the anchor piles and the reinforced concrete crown beams of the external corners and/or the upper ends of two sides of the external corners, and reinforced concrete connecting beams are arranged at the upper ends of all the anchor piles. The combined supporting structure is adopted, the number of anchor piles is small, the construction process is simple, the operation is easier, the external tension of the foundation pit is provided at the external corner position of the foundation pit on the premise of small occupied area, the stress is clear, the integral rigidity is high, the excessive deformation of the external corner of the foundation pit is more effectively prevented, the safety of the foundation pit is ensured, and the internal space of the foundation pit is not occupied.
Description
Technical Field
The utility model relates to the technical field of foundation pit support, in particular to a pile-beam combined support structure suitable for foundation pit continuous external corner reinforcement.
Background
The supporting piles are generally arranged along the outer contour of the underground main body structure in foundation pit engineering, the underground main body structure needs to consider factors such as ground red lines, building functions and the like, and the situation that the outer contour of the underground main body structure is similar to a zigzag continuous folded line shape can sometimes occur. This results in a continuous external corner in the planar arrangement of the foundation pit support piles, and the external corner is often a weak place of the foundation pit, and the deformation of the support structure at the external corner is larger than that at the general position. Especially for the foundation pit adopting cantilever pile support, once the supporting structure at the external corner is excessively deformed, other positions can be driven to follow the deformation, so that the safety of the whole foundation pit is affected.
For a foundation pit which is supported by cantilever piles and has continuous external corners, the corner support can be arranged at the internal corner between two external corners, but the external corner still has lateral soil pressure pointing to the interior of the foundation pit, the lateral soil pressure cannot be balanced, the overall stability of the supporting structure is affected, and therefore, a tensile force pointing to the outside of the foundation pit at the external corner is required to be provided for the supporting piles. If the pile anchor structure is formed by anchor rods, the anchor rods are generally longer, and the ground red line can be exceeded. If a vertical diagonal bracing is arranged in the foundation pit, the foundation pit is required to be locally dug to the pit bottom, soil bodies close to the side of the supporting piles are reserved, and the diagonal bracing is installed after the construction of the bottom plate of the main body structure is completed.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a pile-beam combined supporting structure suitable for continuous external corner reinforcement of a foundation pit.
The technical scheme for solving the technical problems is as follows: the utility model provides a pile-beam combination supporting structure suitable for continuous external corner reinforcement of foundation ditch, includes the many supporting piles that set up side by side on the contour line of foundation ditch vertically, the top of supporting pile is provided with reinforced concrete crown beam, just be provided with reinforced concrete crown beam will all supporting pile connects into whole, be connected with at least one reinforced concrete supporting beam between the reinforced concrete crown beam that the both sides upper end of the reentrant corner of foundation ditch contour line corresponds, the interval is provided with many anchor piles on the line between the adjacent reentrant corner of foundation ditch contour line, the upper end of anchor pile with the external corner and/or be connected with at least one reinforced concrete beam between the reinforced concrete crown beam of the upper end of external corner both sides, the upper end of anchor pile is provided with reinforced concrete beam, just reinforced concrete beam with all reinforced concrete beam with the reentrant corner of foundation ditch contour line connects into whole.
Based on the technical scheme, the utility model can also be improved as follows:
further: the external corners and the internal corners are formed by vertically and uniformly arranging the obtained support piles along the outline line of the foundation pit.
Further: and the pile diameter, the pile length and the pile top elevation of the supporting pile and the anchor pile are the same.
Further: the distance between two adjacent anchor piles is 4.0-5.0m.
Further: the reinforced concrete pull beams positioned between the reinforced concrete crown beams and the corresponding anchor piles at the upper ends of the two sides of the external corner are symmetrically arranged relative to the reinforced concrete pull beams between the anchor piles and the external corner.
Further: the reinforced concrete tie beams positioned between the external corners and the corresponding anchor piles and the reinforced concrete support beams positioned between the two external corners are mutually perpendicular, and the reinforced concrete crown beams positioned at the upper ends of the two sides of the external corners and the reinforced concrete tie beams positioned between the corresponding anchor piles and the reinforced concrete crown beams positioned at the upper ends of the corresponding sides of the internal corners are mutually perpendicular.
Further: the reinforced concrete crown beam and the reinforced concrete connecting beam have the same cross section size.
Further: the section sizes of the reinforced concrete tensile beams of the reinforced concrete supporting beams are the same.
The beneficial effects of the utility model are as follows: the utility model is suitable for a pile-beam combined supporting structure for reinforcing the continuous external corners of the foundation pit, adopts a supporting structure of combining anchor piles and reinforced concrete pull beams, has the advantages of less anchor piles, simple construction procedure, easier operation, definite stress, high overall rigidity, capability of effectively preventing the excessive deformation at the external corners of the foundation pit, ensuring the safety of the foundation pit, no occupation of the internal space of the foundation pit, convenience for earth excavation and main structure construction and construction period saving.
Drawings
FIG. 1 is a schematic plan view of a pile-beam combined support structure for continuous external corner reinforcement of a foundation pit according to an embodiment of the present utility model;
fig. 2 is a schematic cross-sectional structure of a pile-beam combined supporting structure suitable for continuous external corner reinforcement of a foundation pit according to an embodiment of the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1. the support pile, 2, reinforced concrete crown beam, 3, reinforced concrete support beam, 4, anchor pile, 5, reinforced concrete pull beam, 6, reinforced concrete connecting beam, 7, external corner, 8, internal corner.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As shown in fig. 1 and 2, a pile-beam combined supporting structure suitable for continuous external corner reinforcement of a foundation pit is applied to a foundation pit contour line with a saw-tooth-shaped cross section, and comprises a plurality of supporting piles 1 which are vertically arranged side by side on the foundation pit contour line, wherein reinforced concrete crown beams 2 are arranged at the top ends of the supporting piles 1, the reinforced concrete crown beams 2 are arranged to connect all the supporting piles 1 into a whole, at least one reinforced concrete supporting beam 3 is connected between the reinforced concrete crown beams 2 corresponding to the upper ends of two sides of an internal corner 8 of the foundation pit contour line, a plurality of anchor piles 4 are arranged at intervals on a connecting line between adjacent internal corners 8 of the foundation pit contour line, at least one reinforced concrete tie beam 5 is connected between the upper ends of the anchor piles 4 and the reinforced concrete crown beams 2 at the upper ends of two sides of the external corners 7, and the reinforced concrete tie beams 6 are arranged to connect all the contour beams 5 with the whole reinforced concrete tie beams 8.
In one or more embodiments of the utility model, said external corners 7 and said internal corners 8 are each formed by a vertical uniform arrangement of the resulting support piles 1 along the outline of the foundation pit. Through will prop up 1 along the vertical evenly distributed formation of foundation ditch contour line external corner 7 with internal corner 8, can make like this prop up 1's atress is more even, and the structure is more stable, and arrangement bearing capacity is stronger, effectually prevents the too big deformation of foundation ditch external corner 7 department.
In one or more embodiments of the utility model, the distance between two adjacent anchor piles 4 is 4.0-5.0m. In this embodiment, the distance between two adjacent anchor piles 4 is preferably 4.5m.
In one or more embodiments of the present utility model, the reinforced concrete girder 5 between the reinforced concrete crown beam 2 and the corresponding anchor pile 4 at the upper ends of both sides of the external corner 7 is symmetrically disposed with respect to the reinforced concrete girder 5 between the anchor pile 4 and the external corner 7. Through the symmetry setting, can improve this supporting construction's stability for arrangement atress is more balanced.
In practice, the reinforced concrete tie beams 5 between the anchor piles 4 and the external corners 7 are located on angular bisectors of the external corners 7, and the reinforced concrete crown beams 2 located at the upper ends of both sides of the external corners 7 and the reinforced concrete tie beams 5 between the corresponding anchor piles 4 are symmetrically arranged in parallel with respect to the reinforced concrete tie beams 5 between the anchor piles 4 and the external corners 7.
In one or more embodiments of the present utility model, the reinforced concrete tie beams 5 between the external corners 7 and the corresponding anchor piles 4 and the reinforced concrete support beams 3 between the two external corners 7 are disposed perpendicular to each other, and the reinforced concrete tie beams 5 between the reinforced concrete crown beams 2 at the upper ends of both sides of the external corners 7 and the corresponding anchor piles 4 and the reinforced concrete support beams 3 between the reinforced concrete crown beams 2 at the upper ends of the corresponding sides of the internal corners 8 are disposed perpendicular to each other.
In one or more embodiments of the present utility model, the reinforced concrete crown beam 2 has the same cross-sectional dimensions as the reinforced concrete bridge 6. By setting the same section size of the reinforced concrete crown beam 2 and the reinforced concrete connecting beam 6, construction can be facilitated, and construction efficiency is improved.
In one or more embodiments of the present utility model, the reinforced concrete tie beams 5 of the reinforced concrete support beam 3 have the same cross-sectional dimensions. By arranging the reinforced concrete tie beams 5 of the reinforced concrete support beam 3 with the same section size, construction can be facilitated, and construction efficiency is improved.
The construction process of the pile-beam combined supporting structure suitable for foundation pit continuous external corner reinforcement is as follows:
(1) firstly, constructing the support piles 1 after the field is leveled;
(2) according to the external corner 7 of the foundation pit contour line formed by the support pile 1 on a plane, constructing anchor piles 4 at the intersection point of the angular bisector of the external corner 7 and the central line of the reinforced concrete connecting beam 6, and symmetrically constructing other anchor piles 4 at the two sides of the angular bisector of the external corner 7 of the foundation pit wheel line;
(3) excavating earthwork to the bottom elevations of the reinforced concrete crown beam 2, the reinforced concrete support beam 3, the reinforced concrete pull beam 5 and the reinforced concrete connecting beam 6, constructing the reinforced concrete crown beam 2, the reinforced concrete support 3, the reinforced concrete pull beam 5 and the reinforced concrete connecting beam 6, and anchoring the reinforced concrete and pouring the concrete synchronously;
(4) after the reinforced concrete crown beam 2, the reinforced concrete support 3, the reinforced concrete tie beam 5 and the reinforced concrete connecting beam 6 all reach the design strength, a foundation pit can be excavated to the substrate elevation;
(5) and constructing the main body structure from bottom to top, dismantling the reinforced concrete supporting beam 3 after the main body structure reaches the design strength, and backfilling the foundation pit.
(6) According to actual needs, the reinforced concrete crown beam 2, the reinforced concrete pull beam 5 and the reinforced concrete connecting beam 6 can be respectively chiseled off and backfilled to the designed elevation.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (8)
1. Pile-beam combined supporting structure suitable for reinforcing continuous external corners of foundation pit is applied to foundation pit contour line with saw-tooth section, and is characterized in that: including many support stake (1) that set up side by side on the contour line of foundation ditch vertically, the top of supporting stake (1) is provided with reinforced concrete guan liang (2), just be provided with reinforced concrete guan liang (2) will all support stake (1) and connect into wholly, the both sides upper end of the reentrant corner (8) of foundation ditch contour line corresponds be connected with at least one reinforced concrete supporting beam (3) between reinforced concrete guan liang (2), the interval is provided with many anchor stake (4) on the connecting wire between adjacent reentrant corner (8) of foundation ditch contour line, the upper end of anchor stake (4) with external corner (7) and/or be connected with at least one reinforced concrete tie beam (5) between reinforced concrete guan liang (2) of the upper end of external corner (7) both sides, the upper end of anchor stake (4) is provided with concrete tie beam (6), just reinforced concrete tie beam (6) will all reinforced concrete tie up the reentrant corner (8) of contour line.
2. The pile-beam combined supporting structure suitable for foundation pit continuous external corner reinforcement according to claim 1, wherein: the external corners (7) and the internal corners (8) are formed by uniformly arranging the obtained support piles (1) vertically along the outline of the foundation pit.
3. The pile-beam combined supporting structure suitable for foundation pit continuous external corner reinforcement according to claim 1, wherein: the pile diameter, pile length and pile top elevation of the supporting pile (1) and the anchor pile (4) are the same.
4. A pile-beam combined support structure suitable for foundation pit continuous external corner reinforcement according to claim 3, wherein: the distance between two adjacent anchor piles (4) is 4.0-5.0m.
5. The pile-beam combined supporting structure suitable for foundation pit continuous external corner reinforcement according to claim 1, wherein: the reinforced concrete bracing beams (5) between the reinforced concrete crown beams (2) and the corresponding anchor piles (4) which are positioned at the upper ends of the two sides of the external corner (7) are symmetrically arranged relative to the reinforced concrete bracing beams (5) between the anchor piles (4) and the external corner (7).
6. The pile-beam combined supporting structure suitable for foundation pit continuous external corner reinforcement according to claim 5, wherein: the reinforced concrete bracing beams (5) between the external corners (7) and the corresponding anchor piles (4) and the reinforced concrete supporting beams (3) between the two external corners (7) are mutually perpendicular, and the reinforced concrete bracing beams (2) between the upper ends of the two sides of the external corners (7) and the corresponding anchor piles (4) are mutually perpendicular to the reinforced concrete supporting beams (3) between the reinforced concrete bracing beams (5) between the upper ends of the corresponding sides of the internal corners (8).
7. The pile-beam combination support structure suitable for continuous external corner reinforcement of foundation pit according to any one of claims 1-6, wherein: the cross section of the reinforced concrete crown beam (2) is the same as that of the reinforced concrete connecting beam (6).
8. The pile-beam combination support structure suitable for continuous external corner reinforcement of foundation pit according to any one of claims 1-6, wherein: the reinforced concrete supporting beams (3) and the reinforced concrete pull beams (5) are the same in section size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223285103.6U CN219060069U (en) | 2022-12-08 | 2022-12-08 | Pile-beam combined supporting structure suitable for foundation pit continuous external corner reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223285103.6U CN219060069U (en) | 2022-12-08 | 2022-12-08 | Pile-beam combined supporting structure suitable for foundation pit continuous external corner reinforcement |
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| Publication Number | Publication Date |
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| CN219060069U true CN219060069U (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223285103.6U Active CN219060069U (en) | 2022-12-08 | 2022-12-08 | Pile-beam combined supporting structure suitable for foundation pit continuous external corner reinforcement |
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| CN (1) | CN219060069U (en) |
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2022
- 2022-12-08 CN CN202223285103.6U patent/CN219060069U/en active Active
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