CN219059995U - Soft soil foundation treatment reinforcing structure - Google Patents

Abstract

The utility model discloses a soft soil foundation treatment and reinforcement structure, which comprises a soft soil foundation. Several groups of parallel vertical concrete reinforcement piles are symmetrically distributed inside the soft soil foundation, and the tops of the concrete reinforcement piles are fixed with mutual The spliced support plate, the upper part of the support plate is provided with a support beam, the two sides of the bottom of the support plate are provided with limited holes, and the top of the concrete reinforcement pile and the support plate are inserted through integrally formed positioning protrusions. In the corresponding limiting hole, the support plate is provided with a positioning screw screwed inside the positioning protrusion, the support beam is arched and forms a detachable connection with the support plate, and the support beam A horizontal strut and a vertical bar are arranged. The utility model has a novel structure, and evenly distributed pile bodies are arranged on the soft soil foundation, and support plates and 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 reinforcement structure

technical field

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

Background technique

Soft soil refers to fine-grained soil with high natural water content, large void ratio, high compressibility, and low shear strength deposited in coastal areas, lakes, valleys, and river beaches. It has high natural water content, large natural void ratio, high compressibility, low shear strength, small consolidation coefficient, long consolidation time, high sensitivity, large disturbance, poor water permeability, complex layered distribution of soil layers, and The physical and mechanical properties are quite different among them.

Soft soils are widely distributed along rivers, lakes, and coasts in my country, and these areas are generally economically developed areas, and there is an urgent need for road traffic, especially the development of expressways. In the construction of highways and high-speed railways, it is inevitable to pass through some soft soil foundations that are not suitable for building embankments. Filling high-fill embankments on these soft soil foundations often faces problems such as insufficient foundation bearing capacity, instability, embankment settlement, uneven settlement, and excessive lateral deformation. Therefore, the soft soil at high embankments, large bridges, a large number of culverts, and passages all brings them different degrees of harm. Due to the complexity of geological conditions, construction period and economic reasons, the application of traditional construction methods has great limitations. Therefore, it is necessary to design a soft soil foundation treatment reinforcement structure.

Utility model content

In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a soft soil foundation treatment and reinforcement structure. The support plate and the arched support beam are connected at the top to form a whole, the bearing capacity strength is greatly improved, and the assembly is convenient, which can greatly shorten the construction period and increase the construction efficiency.

In order to achieve the above purpose, the utility model provides the following technical solutions: a soft soil foundation treatment and reinforcement structure, including a soft soil foundation, and several groups of parallel distributed vertical concrete reinforcement piles are symmetrically distributed inside the soft soil foundation. The top of the concrete reinforcement pile is fixed with supporting plates spliced with each other, and the bottom of the support plate is symmetrically provided with limiting holes on both sides. In the corresponding limiting hole, the support plate is provided with a positioning screw screwed inside the positioning protrusion, and a support beam is provided above the support plate.

Preferably, the pile body is a concrete pile body with a conical tip and an integrally formed positioning bump on the top.

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

Preferably, several groups of drainage grooves are distributed in parallel on the upper part of the support plate.

Preferably, several spring telescopic connectors are installed between two adjacent support plates, the spring telescopic connectors include a top plate and a bottom plate with a circular structure, and a telescopic tube is installed between the top plate and the bottom plate, A buffer spring is sheathed on the outside of the telescopic tube, and a limiting sleeve is installed on the inner side of the top plate and the bottom plate and on the outer side of the buffer spring.

Preferably, two adjacent support plates are connected by expansion water retaining strips.

Preferably, a sand layer is laid on the top of the soft soil foundation, a grid layer is laid on the top of the sand layer, a gravel layer is laid on the top of the grid layer, and the top of the gravel layer and the support plate The bottom of the support beam is in contact with the upper part of the support beam and an earthwork layer is set between the support beam and the support plate.

The beneficial effects of the utility model are:

1. Set evenly distributed vertical concrete piles on the soft soil foundation, and set connecting support plates and arched support beams on the upper part of the piles, which can provide upward lifting force for pavement materials, effectively prevent pavement from sinking, and greatly improve The bearing capacity of the subgrade is improved, and the connection and installation are convenient, and at the same time, the construction efficiency is improved to a certain extent, and the construction period is shortened;

2. During the rainy season, the rainwater infiltrated from the upper layer of soil reaches the support plate, and is discharged to both sides of the road through the drainage groove on the plate, so as to prevent the rainwater from soaking into the soft soil foundation of the lower layer, and further reduce the bearing capacity of the soft soil foundation;

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 connection structure composed of a spring telescopic connector, including a telescopic cylinder, a buffer spring, a top plate, a bottom plate and a limit sleeve. , to avoid mutual extrusion and damage of the two support plates during thermal expansion and contraction;

4. Prevent rainwater from flowing into the soft soil foundation from the gap between the two support plates through the set expansion water retaining strip;

5. The bottom of the support plate is supported by the sand layer, grid layer, and gravel layer, and the upper arched support beam and earthwork layer are added to further improve the bearing capacity of the entire soft soil foundation.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a schematic diagram of the overall plane structure of the utility model;

Fig. 2 is a schematic plan view of the utility model;

Fig. 3 is a structural schematic diagram of the utility model spring telescopic connector;

Labels in the figure: 1. Soft soil foundation; 2. Concrete reinforcement pile; 3. Support beam; 4. Gravel layer; 5. Support plate; 6. Positioning bump; 7. Limit hole; 8. Sand layer; 9 , grid layer; 10, drainage groove; 11, vertical bar; 12, cross brace; 13, expansion water retaining bar; 14, spring telescopic connector; 15, top plate; 16, limit sleeve; 17, buffer spring ; 18, bottom plate; 19, telescopic cylinder; 20, set screw; 21, earthwork layer.

Detailed ways

In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features.

The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

Embodiment one

Given by Fig. 1, the utility model provides the following technical scheme: a kind of soft soil foundation treatment reinforcement structure, comprises soft soil foundation 1, and the inner symmetrical distribution of soft soil foundation 1 has several groups of vertical concrete reinforcement piles 2 that are distributed in parallel, The top of the concrete reinforcement pile 2 is fixed with a support plate 5 spliced with each other, and the bottom of the support plate 5 is symmetrically provided with limit holes 7 on both sides. In the limit hole 7, the support plate 5 is provided with a positioning screw 20 screwed inside the positioning bump 6, and the evenly distributed concrete reinforcement piles 2 are arranged on the soft soil foundation 1, forming a whole with the support plate 5, bearing The force strength is greatly improved, the construction period is shorter, the installation is convenient, and the construction efficiency is high.

Preferably, the pile body is a concrete pile body, the tip of which is conical, and the top is provided with an integrally formed positioning protrusion, which is more precisely and closely connected with the support plate.

Embodiment two

Referring to Fig. 1, as another preferred embodiment, the difference from Embodiment 1 is that a support beam 3 is arranged above the support plate 5, the support beam 3 is arched and is provided with a cross brace 12 and a vertical bar 11, the support beam 3 It is connected with the concrete reinforcement pile 2 and the support plate 5 to form a whole through the positioning screw 20, which can provide upward lifting force for the road surface material, effectively prevent the road surface from sinking, and greatly improve the bearing capacity of the roadbed.

Preferably, the support beam is arched, and a vertical bar is vertically arranged in the middle of the beam, and a cross brace is arranged between two arch feet.

Embodiment Three

Referring to Fig. 1 and Fig. 2, as another preferred embodiment, the difference from Embodiment 1 is that several groups of drainage grooves 10 are distributed in parallel on the upper part of the support plate 5, and during the rainy season, the rainwater infiltrated from the upper earthwork reaches the support plate. On the plate 5, it is discharged to both sides of the road through the drainage groove 10 on the plate, preventing rainwater from soaking into the soft soil foundation 1 of the lower layer, and further reducing the bearing capacity of the soft soil foundation 1;

Embodiment Four

Referring to Fig. 2 and Fig. 3, as another preferred embodiment, the difference from Embodiment 1 is that a number of spring telescopic connectors 14 are installed between two adjacent support plates 5, and the spring telescopic connectors 14 include circular structures. Top plate 15 and bottom plate 18, and telescopic tube 19 is installed between top plate 15 and bottom plate 18, and the outside of telescopic tube 19 is covered with buffer spring 17, and the inboard of top plate 15 and bottom plate 18 and the outside of buffer spring 17 are limited Sleeve 16, when the support plate 5 expands with heat and contracts with cold due to air temperature, the two support plates 5 pass through the spring telescopic connector 14, including the telescopic tube 19, the buffer spring 17, the top plate 15, the bottom plate 18 and the limit sleeve 16 The formed flexible connection structure is connected to prevent the two support plates from being squeezed and damaged when thermal expansion and contraction occur.

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

Embodiment five

Referring to Fig. 1, as another preferred embodiment, the difference from Embodiment 1 is that a sand layer 8 is laid on the top of the soft soil foundation 1, a grid layer 9 is laid on the top of the sand layer 8, and a grid layer 9 is laid on the top of the grid layer 9. There is a gravel layer 4, the top of the gravel layer 4 is in contact with the bottom of the support plate 5, an earthwork layer 21 is set on the top of the support beam 3 and between the support beam 3 and the support plate 5, and the sand layer 8 and the grid layer are passed through. 9 and the crushed stone layer 4 are supported on the bottom of the supporting plate 5, and the arched supporting beam 3 is added to further enhance the bearing capacity of the reinforced structure.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (7)

1. A soft soil foundation treatment reinforcement structure, comprising a soft soil foundation (1), is characterized in that: the inner symmetrical distribution of the soft soil foundation (1) has some groups of parallel distributed concrete reinforcement piles (2), the The top of the concrete reinforcement pile (2) is fixed with mutually spliced support plates (5), and the bottom sides of the support plate (5) are symmetrically provided with limiting holes (7), and the concrete reinforcement pile (2) passes through the top and The integrally formed positioning bump (6) of the concrete reinforcement pile (2) is inserted into the corresponding limiting hole (7), and the support plate (5) is provided with a The positioning screw (20) inside the bump (6), the support beam (3) is arranged above the support plate (5), the support beam (3) is connected with the support plate (5), the concrete reinforcement pile (2) A detachable connection is formed by the set screw (20). 2. A soft soil foundation treatment reinforcement structure according to claim 1, characterized in that: the support beam (3) is arched, and a vertical bar (11) is vertically arranged in the middle of the support beam (3) ), a cross brace (12) is arranged between the two arch feet of the support beam (3). 3. A soft soil foundation treatment reinforcement structure according to claim 1, characterized in that: the concrete reinforcement pile (2) is a concrete pile body, the tip of which is conical, and the top of the concrete reinforcement pile (2) is set There are positioning projections (6) integrally formed with the concrete reinforcement pile (2). 4. The reinforcement structure for soft soil foundation treatment according to claim 1, characterized in that: several groups of drainage grooves (10) are distributed in parallel on the upper part of the support plate (5). 5. A reinforcement structure for treating soft ground according to claim 1, characterized in that: a number of spring telescopic connectors (14) are installed between two adjacent support plates (5), and the spring telescopic The connector (14) comprises a top plate (15) and a bottom plate (18) of a circular structure, and a telescopic tube (19) is installed between the top plate (15) and the bottom plate (18), and the telescopic tube (19) A buffer spring (17) is sheathed on the outside of the buffer spring (17), and a limiting sleeve (16) is installed on the inner side of the top plate (15) and the bottom plate (18) and on the outer side of the buffer spring (17). 6. The reinforcement structure for treating soft ground according to claim 5, characterized in that two adjacent support plates (5) are connected by expansion water retaining strips (13). 7. A soft soil foundation treatment reinforcement structure according to claim 1, characterized in that: a sand layer (8) is laid on the top of the soft soil foundation (1), and a sand layer (8) is laid on the top of the sand layer (8). There is a grid layer (9), the top of the grid layer (9) is laid with a gravel layer (4), the top of the gravel layer (4) is in contact with the bottom of the support plate (5), and the support An earthwork layer (21) is arranged on the upper part of the beam (3) and between the support beam (3) and the support plate (5).

Images