CN212452740U - Reinforcing structure for beam-column type support foundation - Google Patents
Reinforcing structure for beam-column type support foundation Download PDFInfo
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- CN212452740U CN212452740U CN202021702472.9U CN202021702472U CN212452740U CN 212452740 U CN212452740 U CN 212452740U CN 202021702472 U CN202021702472 U CN 202021702472U CN 212452740 U CN212452740 U CN 212452740U
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Abstract
The utility model discloses a reinforced structure for beam column type support basis, reinforced structure set up in the periphery on basis, including consolidating pile foundation subassembly and supporting pile foundation subassembly, consolidate pile foundation subassembly and basic connection, consolidate the pile foundation subassembly and include the stiffening pile part and the enhancement frame of being connected with the stiffening pile part, the enhancement frame sets up at the top of stiffening pile part, and the enhancement frame is overall structure, and the supporting pile foundation subassembly sets up consolidate the outside of pile foundation subassembly, the supporting pile foundation subassembly is including supporting pile part. The utility model discloses a reinforced structure consolidates the support system basis under not demolising former support condition, and reinforced structure and basis become a whole atress structure, increase basic overall stability, make whole support system satisfy the atress requirement.
Description
Technical Field
The utility model relates to a bridge engineering field, in particular to a reinforced structure for beam column type support basis.
Background
Along with the rapid development of bridge construction, the construction of bridges is diversified according to different addresses and environmental factors of the bridges, and mainly comprises a full framing method, a beam-column type framing method, a movable formwork method, a prefabricated hoisting method, a steel pipe, a section steel and Bailey beam combined framing method and the like, wherein the beam-column type framing can meet the requirements of vehicle passing and navigation in the construction of crossing roads and river box beams, has the advantages of short construction period, less materials and labor, stable foundation, small settlement and the like, is widely used, and can avoid large-area foundation treatment and reduce the personnel investment by adopting the beam-column type framing.
The beam-column type support structure comprises a foundation, buttresses, longitudinal beams, cross beams, templates and the like, and the bearing capacity of the foundation is detected and calculated according to the requirements of field geological conditions in the construction process. When the bearing capacity of the foundation does not meet the requirement, if the foundation is soft soil in many areas, the compressibility is high and the strength is low, so that the foundation needs to be reinforced, and the requirement on the bearing capacity of the foundation is met by filling materials with hard texture, high strength and stable performance in a filling mode generally; piles with certain strength, such as cement mixing piles, cement mortar piles, cement fly ash gravel piles and the like, are constructed in soft land to form a composite foundation, then a foundation is constructed on the composite foundation, and then a beam column type support system is built. When the bearing capacity of the foundation meets the design requirement, the foundation does not need to be reinforced, a concrete foundation is directly constructed on the foundation, then a beam-column type support system is built, the construction support can have certain risks after the foundation is not treated, for example, after the vertical column support is erected, due to other non-resistance factors such as rainfall and drainage, the soil body structure of a soft soil ground under the combined action of self weight and certain load is damaged, the foundation on the soft soil foundation is sunk and unstable, the foundation is easy to laterally slide and displace, the bearing capacity of the foundation is sharply reduced, the initial design bearing capacity cannot be reached, and the bearing capacity of the foundation cannot meet the design requirement of the original support system. Aiming at the condition that the basic bearing capacity can not meet the requirement, the measures generally adopted in engineering are to dismantle the original support and then erect the support again, the method needs to consume a large amount of manpower, financial resources and material resources, and the construction period is delayed for a long time; if the original support is not removed and the stress area of the whole support foundation is only enlarged, the method has the advantages that the effect is not very obvious, the success cases are few, and in the stress process of the support, the stress area of the foundation is only increased, so that uneven force transmission of the whole support is easily caused, the foundation is cracked, the local settlement is serious, and the quality of a support beam body cannot be guaranteed. Therefore, effective engineering measures must be taken to reinforce the built beam-column type support foundation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problem that the basis bearing capacity that the beam column type support system leads to after accomplishing to set up under the exogenic factor is unsatisfied with the design requirement, provide the reinforced structure who is used for beam column type support basis, under not demolising the support condition, consolidate the support basis, reinforced structure and basis become a whole stress structure, increase basic overall stability, make whole support system satisfy the atress requirement.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a reinforcing structure for a beam-column type support foundation, which is arranged at the periphery of the foundation and comprises a reinforcing component and a supporting component, wherein the reinforcing component is connected with the foundation and comprises a reinforcing pile part and a first enlarged foundation, the reinforcing pile part comprises a plurality of reinforcing piles arranged along the circumferential direction of the foundation, the first enlarged foundation is arranged at the top of the reinforcing pile part, and the first enlarged foundation is of an integral structure; the support assembly includes a support pile member including a plurality of support piles arranged circumferentially of the reinforcement assembly.
The utility model provides a reinforced structure for beam column type support basis, when soft soil foundation soil body structure changes after the rainfall and leads to the unsatisfied atress requirement of support, reinforced structure has been set up in the periphery of basis, the vertical setting of enhancement stake circumference in the enhancement stake part is in the outlying ground of basis, a bearing capacity for reinforcing soft soil foundation, first enlarge the basis and will strengthen stake part and basic connection, first enlarge the basis and be overall structure, thereby make basis and reinforcement component connect into a whole, the lifting surface who has increased the basis and bear the support has increased, the support stake setting that supports stake part simultaneously is peripheral at reinforcement component, consolidate soft soil foundation on every side, further increase the bearing capacity of ground. The utility model discloses basic reinforced structure has improved the bearing capacity of soft soil foundation, the lifting surface area on basis has been increased, when receiving the external load effect, the load is dispersed and is applied to the whole that basis and reinforced structure formed, prevent that the basis from appearing subsiding or the lateral sliding displacement, show the anti lateral sliding ability at low strength soft soil foundation of the whole that improves basis and reinforced structure formation, the overall stability of basis on the low strength soft soil foundation has been increased, solve the soft weak of low strength soft soil gene foundation, the basis unstability and the not satisfied atress condition of the whole support system that leads to, this scheme adapts to ground failure mode, full play reinforced structure's anti destructive power, saved the expense of buildding again, economic benefits is showing.
Further, the vertical interval of reinforced pile sets up in soft soil foundation, reinforced pile with first enlarged foundation rigid connection.
Further, the support piles are vertically arranged in the soft soil foundation at intervals.
Further, the reinforcing pile or the supporting pile is one of a cement jet grouting pile, a cement fly ash gravel pile or a concrete pile.
Further, the distance between the reinforcing pile and the foundation is 0.5-2.0 m.
Further, when the reinforcing piles or the supporting piles are cement jet grouting piles, the pile spacing is 0.5-2.0 m.
Further, the first expanded foundation is a concrete member, a reinforcing mesh is arranged in the concrete member, the reinforcing mesh is horizontally arranged and has at least one layer, and the strength of the first expanded foundation is greater than or equal to C30 concrete.
Further, a top surface of the first enlarged base is flush with a top surface of the base.
Further, strengthen the stake and support the stake vertical setting in the soft soil foundation, the soft soil foundation includes soft soil layer of foundation and foundation bearing force layer from top to bottom, strengthen the stake and support the lower extreme of stake and stretch into the foundation bearing force layer.
Further, the support assembly further comprises a support frame, and the support frame is connected with the support pile part and the first enlarged foundation.
Further, the support frame is overall structure, the support frame is the concrete component, be provided with the reinforcing bar in the support frame, the intensity of support frame is more than or equal to C30 concrete. When the support frame is overall structure, the support frame can regard as the second to enlarge the basis, so the basis, reinforcement subassembly and supporting component have constituted an overall structure, the reinforcing pile part that sets up in the ground strengthens soft soil foundation with supporting pile part, make overall structure can homogenize the low strength soft soil to the stress of reinforcing pile and supporting pile, promote the effect of antiskid in coordination, the first support frame that enlarges basis and supporting component is connected the lifting surface area who makes the basis further increase simultaneously, make the basis more firm.
Further, the support frame includes a plurality of horizontally arranged support beams. Each supporting beam connects each supporting pile with the reinforcing component, the supporting beams connect the supporting parts with the reinforcing component and the whole formed by the foundation together, and the reinforcing piles and the supporting piles arranged in the soft soil can homogenize the load borne by the soft soil foundation, jointly improve the lateral sliding resistance and strengthen the lateral destructive power of the soft soil foundation.
Further, the support beam is a concrete member. The strength of the support beam is greater than or equal to C30 concrete.
Further, the supporting beam is of a steel bar structure. The steel bar structure connects each supporting pile with the reinforcing component without pouring concrete.
Compared with the prior art, the beneficial effects of the utility model are that:
1. a reinforced structure for beam column type support basis, connect into a whole with the reinforcement subassembly with the basis, increased the lifting surface area that the support was born to the basis, reinforce the stake part simultaneously and support the stake part and consolidate to soft soil foundation on every side. The utility model discloses a basic strengthening structure has improved the bearing capacity of soft soil foundation, prevents that the lateral sliding displacement from appearing in the basis, is showing the whole anti lateral sliding ability at low strength soft soil foundation that improves basis and reinforced structure and form, has increased the overall stability of basis on the low strength soft soil foundation, solves the soft weak of low strength soft soil gene foundation, basis unstability and the unsatisfactory atress condition of whole support system that leads to.
2. A reinforced structure for beam column type support basis, support pile foundation subassembly still includes the support frame, when the support frame is overall structure, make basis, reinforcement subassembly and supporting component have constituted an overall structure, the reinforcing pile part that sets up in the ground strengthens weak soil ground with supporting pile part, make overall structure ability homogenization low strength soft soil to the stress of reinforcing pile and supporting pile, promote the effect of antiskid in coordination, the first support frame that enlarges basis and supporting component who consolidates the subassembly simultaneously connects the lifting surface area who makes the basis further increase, make the basis more firm.
3. A reinforced structure for beam column type support basis be fit for ground failure mode, full play reinforced structure's anti lateral sliding ability has avoided setting up again after demolising the support, saved the expense of buildding again, economic benefits is showing.
Description of the drawings:
FIG. 1 is a cross-sectional view of a basic reinforcing structure in example 1;
FIG. 2 is a top view structural view of a foundation reinforcement structure in example 1;
FIG. 3 is a cross-sectional view of a basic reinforcing structure in example 2;
FIG. 4 is a top view structural view of a foundation reinforcement structure in example 2;
FIG. 5 is a cross-sectional view of the reinforcing structure of the foundation in example 3;
FIG. 6 is a top view structural view of a foundation reinforcement structure in example 3;
FIG. 7 is a cross-sectional view of the basic reinforcing structure in example 4;
fig. 8 is a top view structural view of the foundation reinforcement structure in example 4.
The labels in the figure are: 1-foundation, 2-reinforced pile foundation component, 21-reinforced pile component, 211-reinforced pile, 22-first enlarged foundation, 3-supported pile foundation component, 31-supported pile component, 311-supported pile, 32-support frame, 321-support beam, 4-soft soil foundation, 41-foundation soft soil layer and 42-foundation bearing layer.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1 and 2, a reinforcing structure for a beam-column type support foundation is provided at the periphery of a foundation 1, and comprises a reinforcing component 2 and a supporting component 3, wherein the reinforcing component 2 is connected with the foundation 1, the reinforcing component comprises a reinforcing pile part 21 and a first enlarged foundation 22 connected with the reinforcing pile part, the reinforcing pile part 21 comprises a plurality of reinforcing piles 211 arranged along the circumferential direction of the foundation 1, the first enlarged foundation 22 is provided at the top of the reinforcing pile part 21, the first enlarged foundation 22 is of an integral structure, the supporting component 3 is provided at the outer side of the reinforcing pile part 2, the supporting component 3 comprises a supporting pile part 31, and the supporting pile part 31 comprises a plurality of supporting piles 311 arranged along the circumferential direction of the reinforcing component 2.
The reinforced pile part 21 includes a plurality of vertical spaced reinforced piles 211 provided in the soft soil foundation 4, the reinforced piles 211 are arranged in a square frame shape in the soft soil foundation 4, the upper end of the reinforced piles 211 is provided in the soft soil layer 41 of the foundation, the top surface of the upper end is connected with the first enlarged foundation 22, and the lower end extends into the foundation bearing layer 42. The reinforced pile 211 is a cement jet grouting pile, a CFG pile or a concrete pile. The top surface of the first enlarged base 22 is flush with the top surface of the base 1. The first enlarged footing 22 is a concrete member having a reinforcing mesh disposed therein, the reinforcing mesh being disposed horizontally, and at least one layer, the strength of the first enlarged footing 22 being greater than or equal to C30 concrete.
The supporting pile part 31 comprises a plurality of supporting piles 311 which are vertically arranged on a soft soil foundation at intervals, the supporting piles 311 are connected with the supporting frame 32, the supporting piles 311 are arranged on the outer side of the reinforcing component 2 in a square frame shape, the upper ends of the supporting piles 311 are arranged in the soft soil 41 of the foundation, the top surfaces of the supporting piles 311 are flush with the top surface of the foundation 1, and the lower ends of the supporting piles extend into the foundation bearing layer 42. The support pile 311 is a cement jet grouting pile, a CFG pile, or a concrete pile.
Example 2
As shown in fig. 3 and 4, a reinforcing structure for a beam-column type support foundation, which is different from embodiment 1 in that a support assembly 3 includes a support pile part 31 and a support frame 32, the support frame 32 is connected with the support pile part 31 and a reinforcement assembly 2, the support frame 32 is an integral structure, the support frame 32 is a concrete member, a mesh reinforcement is arranged in the concrete member, the mesh reinforcement is horizontally arranged, and at least one layer of the mesh reinforcement is provided, and the strength of the support frame 32 is greater than or equal to C30 concrete. The top surface of the support bracket 32 is flush with the top surface of the base 1. The foundation 1, the reinforcing component 2 and the supporting component 3 form an integral structure.
Example 3
As shown in fig. 5 and 6, a reinforcing structure for a beam-column type support foundation, this embodiment is different from embodiment 1 in that a support assembly 3 includes a support pile part 31 and a support frame 32, the support frame 32 is connected with the support pile part 31 and a reinforcing assembly 2, the support frame 32 is not an integral structure, the support frame 32 includes a plurality of horizontally arranged support beams 321, the support beams 321 are concrete members, each support beam 321 connects each support pile 311 with a first enlarged foundation 22 in the reinforcing assembly 2, and the integral connection of the reinforcing assembly 2 and the support assembly 3 is realized.
Example 4
As shown in fig. 7 and 8, a reinforcing structure for a beam-column type support foundation, this embodiment is different from embodiment 3 in that a supporting beam 321 is not a concrete member, the supporting beam 321 is a steel bar, and each supporting pile 311 is connected with a first enlarged foundation 22 in a reinforcing assembly 2 by 2 horizontally arranged steel bars, so that the connection of the reinforcing assembly 2 and the supporting assembly 3 is realized.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Reinforcement structure for beam and column support foundations, characterized in that it is arranged at the periphery of the foundation (1) and comprises a reinforcement component (2) and a support component (3),
the reinforcement assembly (2) is connected with a foundation (1), the reinforcement assembly (2) comprises a reinforcement pile part (21) and a first enlarged foundation (22), the reinforcement pile part (21) comprises a plurality of reinforcement piles (211) arranged along the circumference of the foundation (1), the first enlarged foundation (22) is arranged on the top of the reinforcement pile part (21), and the first enlarged foundation (22) is of a whole structure;
the support assembly (3) comprises a support pile part (31), the support pile part (31) comprising a plurality of support piles (311) arranged circumferentially along the reinforcement assembly (2).
2. The reinforcement structure of a foundation according to claim 1, wherein the reinforcing piles (211) are vertically spaced apart in a soft ground, the lower ends of the reinforcing piles (211) extending into the ground bearing layer (42).
3. The reinforcement structure of a foundation according to claim 1, wherein the support piles (311) are vertically spaced apart in a soft ground, the lower ends of the support piles (311) extending into the ground bearing layer (42).
4. The reinforcement structure of a foundation according to claim 2, wherein the reinforcing piles (211) are cement jet grouting piles, cement fly ash gravel piles or concrete piles.
5. The reinforcement structure of a foundation according to claim 3, wherein the support piles (311) are cement jet grouting piles, cement fly ash gravel piles or concrete piles.
6. The reinforcement structure of a foundation according to claim 1, wherein the first enlarged base (22) is a concrete member, and the strength of the first enlarged base (22) is greater than or equal to C30 concrete.
7. The reinforced structure of claim 6, wherein the concrete member has a reinforcing mesh disposed horizontally in at least one layer.
8. The reinforcement structure of a foundation according to claim 1, wherein the support assembly (3) further comprises a support frame (32), the support frame (32) connecting the support pile member (31) and the first enlarged foundation (22).
9. The reinforcement structure of the foundation according to claim 8, wherein the support frame (32) is a unitary structure and the support frame (32) is a concrete member.
10. The reinforcement structure of a foundation according to claim 8, wherein the support frame (32) comprises a number of horizontally arranged support beams (321), which support beams (321) connect the support piles (311) with the reinforcement elements (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021702472.9U CN212452740U (en) | 2020-08-14 | 2020-08-14 | Reinforcing structure for beam-column type support foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021702472.9U CN212452740U (en) | 2020-08-14 | 2020-08-14 | Reinforcing structure for beam-column type support foundation |
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| Publication Number | Publication Date |
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| CN212452740U true CN212452740U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021702472.9U Active CN212452740U (en) | 2020-08-14 | 2020-08-14 | Reinforcing structure for beam-column type support foundation |
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| CN (1) | CN212452740U (en) |
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