CN219059995U

CN219059995U - Soft soil foundation treatment reinforcing structure

Info

Publication number: CN219059995U
Application number: CN202223217891.5U
Authority: CN
Inventors: 周国旭; 陈伟; 黄志军
Original assignee: Lanzhou Jiaotong University
Current assignee: Lanzhou Jiaotong University
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-05-23
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses a soft soil foundation treatment reinforcing structure, which comprises a soft soil foundation, wherein a plurality of groups of vertical concrete reinforcing piles which are distributed in parallel are symmetrically distributed in the soft soil foundation, support plates which are spliced with each other are fixed at the tops of the concrete reinforcing piles, support beams are arranged at the upper parts of the support plates, limit holes are formed in two sides of the bottoms of the support plates, the tops of the concrete reinforcing piles and the support plates are inserted into the corresponding limit holes through integrally formed positioning convex blocks, positioning screws which are screwed in the positioning convex blocks are arranged on the support plates, the support beams are arched and are detachably connected with the support plates, and transverse supporting rods and vertical rods are arranged on the support beams. The utility model has novel structure, the pile bodies are uniformly distributed on the soft soil foundation, the support plates and the support beams are connected above the pile bodies to form a whole, the bearing capacity is greatly improved, the assembly is convenient, and the construction efficiency is high.

Description

Soft soil foundation treatment reinforcing structure

Technical Field

The utility model relates to the technical field of road construction, in particular to a soft soil foundation treatment reinforcing structure.

Background

Soft soil refers to fine-grained soil with high natural water content, large pore ratio, high compressibility and low shear strength deposited on the coast, the lake and the marsh, the valley and the river beach. Has the advantages of high natural water content, large natural pore ratio, high compressibility, low shear strength, small consolidation coefficient, long consolidation time high sensitivity, high disturbance, poor water permeability, complex layered distribution of soil layers, large physical and mechanical property difference among layers, and the like.

Soft soil is widely distributed in places such as river, lake and coast in China, and the areas are generally economically developed areas, so that the need for highway traffic is urgent, and in particular, highways are developed. In the construction of highways and high-speed railways, it is inevitable to pass through soft foundations which are not suitable for embankment construction. Filling high-fill embankments on soft soil foundations often faces the problems of insufficient bearing capacity, instability, embankment settlement, uneven settlement, overlarge lateral deformation and the like of the foundations. Therefore, soft soil at the high embankment, large bridge, a large number of culverts and channels brings different degrees of damage to the soft soil. Due to the complexity, construction period and economy of geological conditions, the application of the traditional construction method has great limitation. Therefore, it is necessary to design a soft soil foundation treatment reinforcing structure.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides a soft soil foundation treatment reinforcing structure which is novel in structure and ingenious in conception, pile bodies are uniformly distributed on the soft soil foundation, and a supporting plate and an arch supporting beam are connected above the pile bodies to form a whole, so that the bearing capacity strength is greatly improved, the assembly is convenient, the construction period is greatly shortened, and the construction efficiency is high.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a reinforced structure is handled to weak soil foundation, includes the weak soil foundation, the inside symmetric distribution of weak soil foundation has a plurality of groups parallel distribution's vertical concrete to consolidate the stake, the top of concrete to consolidate the stake is fixed with the backup pad of mutually concatenation, the bottom bilateral symmetry of backup pad is equipped with spacing hole, the concrete consolidates the stake through the top with concrete to consolidate stake integrated into one piece's locating lug inserts and establishes rather than corresponding in spacing hole, be provided with in the backup pad and connect soon the inside set screw of locating lug, the backup pad top is provided with a supporting beam.

Preferably, the pile body is a concrete pile body, the tip end is conical, and the top is provided with an integrally formed positioning lug.

Preferably, the supporting beam is arched, a vertical rod is vertically arranged in the middle of the supporting beam, and a cross brace is arranged between two arch legs of the supporting beam.

Preferably, the upper part of the supporting plate is provided with a plurality of groups of drainage grooves in parallel.

Preferably, a plurality of spring expansion connectors are installed between two adjacent support plates, each spring expansion connector comprises a top plate and a bottom plate with circular structures, an expansion cylinder is installed between the top plate and the bottom plate, a buffer spring is sleeved outside the expansion cylinder, and a limit sleeve is installed on the inner sides of the top plate and the bottom plate and on the outer sides of the buffer springs.

Preferably, two adjacent support plates are connected through an expansion water bar.

Preferably, a sand soil layer is paved at the top of the soft soil foundation, a grid layer is paved at the top of the sand soil layer, a gravel layer is paved at the top of the grid layer, the top of the gravel layer is contacted with the bottom of the supporting plate, and an earthwork layer is arranged between the upper part of the supporting beam and the supporting beam.

The beneficial effects of the utility model are as follows:

1. the vertical concrete piles which are uniformly distributed are arranged on the soft soil foundation, and the connecting support plates and the arched support beams are arranged on the upper parts of the piles, so that upward lifting force can be provided for pavement materials, pavement recession is effectively prevented, the roadbed bearing capacity is greatly improved, the connection and the installation are convenient, the construction efficiency is improved to a certain extent, and the construction period is shortened;

2. in rainy season, rainwater permeated from the upper layer of earthwork reaches to the supporting plate and is discharged to two sides of a road through the drainage grooves on the plate, so that the rainwater is prevented from being permeated into the soft soil foundation of the lower layer, and the bearing capacity of the soft soil foundation is further reduced;

3. when the connected support plates expand with heat and contract with cold due to air temperature, the two support plates are connected through a flexible connecting structure consisting of a telescopic cylinder, a buffer spring, a top plate, a bottom plate and a limit sleeve through a spring telescopic connector, so that the two support plates are prevented from being mutually extruded and damaged when expanding with heat and contracting with cold;

4. the expansion water bar prevents rainwater from flowing into the soft soil foundation from a gap between the two support plates;

5. the sand layer, the grid layer and the gravel layer are supported at the bottom of the supporting plate, and the arch supporting beam and the earthwork layer are arranged on the upper portion, so that the bearing capacity of the whole soft soil foundation is further improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall planar structure of the present utility model;

FIG. 2 is a schematic top plan view of the present utility model;

FIG. 3 is a schematic view of the spring telescoping connector of the present utility model;

reference numerals in the drawings: 1. a soft soil foundation; 2. a concrete reinforcing pile; 3. a support beam; 4. a crushed stone layer; 5. a support plate; 6. positioning the protruding blocks; 7. a limiting hole; 8. a sandy soil layer; 9. a grid layer; 10. a drainage channel; 11. a vertical rod; 12. a cross brace; 13. expanding the water blocking strip; 14. a spring telescoping connector; 15. a top plate; 16. a limit sleeve; 17. a buffer spring; 18. a bottom plate; 19. a telescopic cylinder; 20. a set screw; 21. and an earth layer.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

Example 1

Given by fig. 1, the present utility model provides the following technical solutions: the utility model provides a reinforced structure is handled to weak soil foundation, including weak soil foundation 1, the inside symmetric distribution of weak soil foundation 1 has a plurality of groups parallel distribution's vertical concrete to consolidate stake 2, the top of concrete to consolidate stake 2 is fixed with the backup pad 5 of mutually concatenation, the bottom bilateral symmetry of backup pad 5 is equipped with spacing hole 7, concrete to consolidate stake 2 inserts through top integrated into one piece's locating lug 6 rather than corresponding spacing hole 7, be provided with the set screw 20 of spin joint in locating lug 6 inside in the backup pad 5, set up evenly distributed's concrete to consolidate stake 2 on weak soil foundation 1, form a whole with backup pad 5, bearing capacity intensity improves greatly, its time limit is shorter and the installation is convenient, the efficiency of construction is high.

Preferably, the pile body is a concrete pile body, the tip is conical, and the top is provided with an integrally formed positioning lug which is more accurately and tightly connected with the supporting plate.

Example two

Referring to fig. 1, as another preferred embodiment, a supporting beam 3 is disposed above a supporting plate 5, the supporting beam 3 is arched and is provided with a transverse strut 12 and a vertical rod 11, the supporting beam 3, a concrete reinforcing pile 2 and the supporting plate 5 are connected to form a whole through a set screw 20, so that an upward lifting force can be provided for a pavement material, pavement recession is effectively prevented, and the bearing capacity of a road base is greatly improved.

Preferably, the supporting beam is arched, a vertical rod is vertically arranged in the middle of the beam, and a cross brace is arranged between two arch legs.

Example III

Referring to fig. 1 and 2, as another preferred embodiment, there is a difference from the first embodiment in that a plurality of sets of drainage grooves 10 are arranged in parallel at the upper portion of the supporting plate 5, and in a rainy season, rainwater infiltrated from the upper earth is discharged to both sides of the road through the drainage grooves 10 on the plate up to the supporting plate 5, so that the rainwater is prevented from being infiltrated into the lower soft soil foundation 1, and the bearing capacity of the soft soil foundation 1 is further reduced;

example IV

Referring to fig. 2 and 3, as another preferred embodiment, a difference from the first embodiment is that a plurality of spring expansion connectors 14 are installed between two adjacent support plates 5, the spring expansion connectors 14 comprise a top plate 15 and a bottom plate 18 of a circular structure, a telescopic cylinder 19 is installed between the top plate 15 and the bottom plate 18, a buffer spring 17 is sleeved outside the telescopic cylinder 19, a limit sleeve 16 is installed inside the top plate 15 and the bottom plate 18 and outside the buffer spring 17, when the support plates 5 expand with heat and contract with cold due to air temperature, the two support plates 5 are connected through a flexible connection structure composed of the telescopic cylinder 19, the buffer spring 17, the top plate 15, the bottom plate 18 and the limit sleeve 16, and the two support plates are prevented from being mutually extruded and damaged when the expansion with cold is generated.

Preferably, two adjacent support plates 5 are connected through an expansion water bar 13, and rainwater is prevented from flowing into the soft soil foundation 1 from a gap between the two support plates 5 through the expansion water bar 13.

Example five

Referring to fig. 1, as another preferred embodiment, a sand layer 8 is laid on top of a soft soil foundation 1, a grid layer 9 is laid on top of the sand layer 8, a crushed stone layer 4 is laid on top of the grid layer 9, top of the crushed stone layer 4 is contacted with bottom of a supporting plate 5, an earth layer 21 is arranged between upper portion of the supporting beam 3 and the supporting plate 5, and the supporting beam 3 is further improved in bearing capacity of the reinforcing structure by the aid of the sand layer 8, the grid layer 9 and the crushed stone layer 4.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a soft soil foundation handles reinforced structure, includes soft soil foundation (1), its characterized in that: the inside symmetric distribution of weak soil foundation (1) has concrete reinforcing pile (2) of a plurality of groups parallel distribution, the top of concrete reinforcing pile (2) is fixed with backup pad (5) of mutually concatenation, the bottom bilateral symmetry of backup pad (5) is equipped with spacing hole (7), concrete reinforcing pile (2) pass through the top with concrete reinforcing pile (2) integrated into one piece's locating lug (6) insert establish rather than corresponding in spacing hole (7), be provided with on backup pad (5) and connect soon locating screw (20) inside locating lug (6), backup pad (5) top is provided with supporting beam (3), supporting beam (3) with backup pad (5) concrete reinforcing pile (2) pass through locating screw (20) form detachable connection.

2. A soft soil foundation treatment reinforcing structure according to claim 1, wherein: the supporting beam (3) is arched, a vertical rod (11) is vertically arranged in the middle of the supporting beam (3), and a cross brace (12) is arranged between two arch legs of the supporting beam (3).

3. A soft soil foundation treatment reinforcing structure according to claim 1, wherein: the concrete reinforced pile (2) is a concrete pile body, the tip is conical, and the top of the concrete reinforced pile (2) is provided with a positioning lug (6) integrally formed with the concrete reinforced pile (2).

4. A soft soil foundation treatment reinforcing structure according to claim 1, wherein: the upper part of the supporting plate (5) is provided with a plurality of groups of drainage grooves (10) in parallel.

5. A soft soil foundation treatment reinforcing structure according to claim 1, wherein: a plurality of spring expansion connectors (14) are arranged between two adjacent support plates (5), each spring expansion connector (14) comprises a top plate (15) and a bottom plate (18) which are of circular structures, an expansion cylinder (19) is arranged between each top plate (15) and each bottom plate (18), a buffer spring (17) is sleeved outside each expansion cylinder (19), and a limiting sleeve (16) is arranged on the inner sides of each top plate (15) and each bottom plate (18) and on the outer sides of the corresponding buffer springs (17).

6. A soft soil foundation treatment reinforcing structure according to claim 5, wherein: two adjacent support plates (5) are connected through an expansion water bar (13).

7. A soft soil foundation treatment reinforcing structure according to claim 1, wherein: the sand soil layer (8) has been laid at the top of weak soil foundation (1), grid layer (9) have been laid at the top of sand soil layer (8), gravel layer (4) has been laid at the top of grid layer (9), the top and the bottom contact of backup pad (5) of gravel layer (4), the upper portion of supporting beam (3) and supporting beam (3) with set up earthwork layer (21) between backup pad (5).