A grid and fiber combined reinforced soil foundation structure

Abstract

The utility model discloses a grid and fiber combined reinforced soil foundation structure, which belongs to the field of construction engineering technology, and includes: an upper bearing layer and a lower bearing layer, a mesh grid is bonded between the upper bearing layer and the lower bearing layer, an upper fiber grid is bonded above the upper bearing layer, and a lower fiber grid is bonded below the lower bearing layer. A plurality of prefabricated holes are opened on the upper bearing layer and the lower bearing layer, and pile foundations are arranged inside the prefabricated holes. The mesh grid is composed of a plurality of steel bars and iron wires. The upper fiber grid and the lower fiber grid are grids composed of a plurality of fiber reinforced plastics; in the utility model, the structure of the fiber grid and the steel bars is adopted to enhance the bearing capacity and integrity of the foundation, and the steel bars are passed through the lower bearing layer and the lower fiber grid, and the foundation is divided into a five-layer design, which is connected to the steel bars through the column base, thereby improving the compression resistance and stability of the foundation.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a grid and fiber combined reinforced soil foundation structure. Background Art

[0002] The grid and fiber combined reinforced soil foundation structure is a geotechnical reinforcement technology, mainly used to improve the bearing capacity and stability of the foundation. It is usually composed of two parts: grid and fiber. Among them, the grid is a mesh structure made of high-strength plastic or metal, which can effectively disperse the load, reduce the deformation of the soil, and form a solid "skeleton". The fiber is a slender material that can improve the shear strength and toughness of the soil, forming a uniform "net" structure. By combining the grid and fiber, the slippage and collapse of the soil can be prevented, and the stability and safety of the soil foundation structure can be ensured.

[0003] Most of the existing foundations reinforced by grids and fibers are fixed by laying fiber grids on the foundation. However, the fiber grid can only fix the surface that fits it, and cannot fix the position far away from the fiber grid. Therefore, a grid and fiber combined reinforced foundation structure is proposed. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a grid and fiber combined reinforced soil foundation structure.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A grid and fiber combined reinforced soil foundation structure comprises: an upper bearing layer and a lower bearing layer, a mesh grid is attached between the upper bearing layer and the lower bearing layer, an upper fiber grid is attached above the upper bearing layer, and a lower fiber grid is attached below the lower bearing layer.

[0007] By adopting the above technical solution, the lower bearing layer is composed of a base layer of sand, gravel and clay, and the upper bearing layer is composed of a waterproof layer of asphalt and concrete.

[0008] Preferably, a plurality of prefabricated holes are opened on the upper bearing layer and the lower bearing layer, and pile foundations are arranged inside the prefabricated holes.

[0009] By adopting the above technical solution, the number of prefabricated holes is at least four, and they are successively passed through the mesh to be fixed.

[0010] Preferably, the mesh grid is composed of a plurality of steel bars and iron wires.

[0011] By adopting the above technical solution, a plurality of steel bars are connected and then fixed by iron wires, and the diameter of the steel bars is smaller than the diameter of the reinforcing bars, and the diameter of the iron wires is smaller than the diameter of the steel bars.

[0012] Preferably, the upper fiber grid and the lower fiber grid are grids composed of multiple strands of fiber reinforced plastic.

[0013] By adopting the above technical solution, both the upper fiber grid and the lower fiber grid have the characteristics of light weight, high strength, anti-corrosion, fireproof, anti-skid, wear-resistant, aging-resistant, insulating, non-magnetic, spark-free, non-toxic, odorless, and long service life;

[0014] The fiber reinforcement is glass fiber, which provides high strength and rigidity, and is bonded with polyester resin to form a strong grid structure and coated on the surface.

[0015] Preferably, the lower fiber grid, the lower bearing layer and the mesh grid are all arrayed with multiple rows of reinforcing ribs running through them.

[0016] By adopting the above technical solution, the steel bars are staggered with the prefabricated holes, and the steel bars are distributed in an array, and there are at least three groups.

[0017] Preferably, the lower fiber grid is connected to the lower bearing layer by rolling with a rubber roller, and the upper bearing layer and the prefabricated hole, and the prefabricated hole and the lower bearing layer are connected by pouring concrete.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] In the utility model, the fiber grid and steel bar structure are adopted to enhance the bearing capacity and integrity of the foundation, and the steel bar runs through the lower bearing layer and the lower fiber grid, and the foundation is divided into five layers, which are connected with the steel bar through the column base, thereby improving the compression resistance and stability of the foundation;

[0020] In the utility model, the upper bearing layer adopts a waterproof layer composed of asphalt and concrete, which effectively prevents the erosion of the road foundation by water and prolongs the service life of the road surface. When laying the upper bearing layer, a prefabricated hole is opened and the column base is placed in the prefabricated hole, which further improves the compression resistance and overall stability of the foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model mesh grid and the lower bearing layer and the upper bearing layer;

[0023] Figure 3 It is a schematic diagram of the structure of the lower fiber grid and steel bars of the utility model.

[0024] In the figure: 10, upper fiber grid; 11, upper bearing layer; 12, prefabricated hole; 13, mesh grid; 14, lower bearing layer; 15, lower fiber grid; 16, reinforcement ribs. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0027] A grid and fiber combined reinforced soil foundation structure comprises: an upper bearing layer 11 and a lower bearing layer 14, a mesh grid 13 is attached between the upper bearing layer 11 and the lower bearing layer 14, an upper fiber grid 10 is attached above the upper bearing layer 11, and a lower fiber grid 15 is attached below the lower bearing layer 14.

[0028] Furthermore, the lower bearing layer 14 is a base layer composed of sand, gravel and clay, and the upper bearing layer 11 is a waterproof layer composed of asphalt and concrete.

[0029] A plurality of prefabricated holes 12 are provided on the upper bearing layer 11 and the lower bearing layer 14 , and pile foundations are provided inside the prefabricated holes 12 .

[0030] Furthermore, the number of the prefabricated holes 12 is at least four, and they penetrate the mesh 13 in sequence for fixation.

[0031] The grid 13 is composed of a plurality of steel bars and iron wires.

[0032] Furthermore, the plurality of steel bars are connected and fixed by iron wires, and the diameter of the steel bars is smaller than the diameter of the reinforcing bar 16, and the diameter of the iron wire is smaller than the diameter of the steel bars.

[0033] The upper fiber grid 10 and the lower fiber grid 15 are grids composed of a plurality of fiber reinforced plastic strands.

[0034] Furthermore, both the upper fiber grid 10 and the lower fiber grid 15 have the characteristics of being lightweight, high-strength, anti-corrosion, fireproof, anti-skid, wear-resistant, aging-resistant, insulating, non-magnetic, spark-free, non-toxic, odorless, and having a long service life;

[0035] The fiber reinforcement is glass fiber, which provides high strength and rigidity, and is bonded with polyester resin to form a strong grid structure and coated on the surface.

[0036] Multiple rows of reinforcing ribs 16 are arranged in an array and penetrate through the lower fiber grid 15 , the lower bearing layer 14 and the mesh grid 13 .

[0037] Furthermore, the reinforcing bars 16 and the prefabricated holes 12 are arranged in an alternating manner, and the reinforcing bars 16 are distributed in an array and are at least three groups.

[0038] The lower fiber grid 15 and the lower bearing layer 14 are connected by rolling with a rubber roller, and the upper bearing layer 11 and the prefabricated hole 12, and the prefabricated hole 12 and the lower bearing layer 14 are connected by pouring concrete.

[0039] According to the above technical solution, the working steps of this solution are summarized and sorted out:

[0040] When laying the lower fiber grid 15, construction begins from the starting position, and the grid is laid at an angle of 90° to the foundation. The grid is laid layer by layer in sequence along the overall direction of the required construction foundation line, and is laid forward in sequence. The longitudinal and transverse flat grids are connected to both sides of the foundation. The total connection length of each adjacent horizontal fiberglass cloth is at least 20 cm, and the connection edge is fixed with a U-shaped nail structure;

[0041] Then, the lower bearing layer 14 is laid, which is a base layer composed of sand, gravel and clay, and compacted, and the reinforcing bar 16 is installed. The reinforcing bar 16 runs through the lower bearing layer 14 and the lower fiber grid 15, and then the mesh 13 is laid, so that after the laying is completed, the height of the reinforcing bar 16 outside the lower bearing layer 14 is lower than the height of the mesh 13, and concrete is poured;

[0042] Lay an upper bearing layer 11, which is a waterproof layer composed of asphalt and concrete, open a prefabricated hole 12, which runs through the lower bearing layer 14, and place the column foundation into the prefabricated hole 12;

[0043] Finally, the upper fiber grid 10 is laid. After laying, a heavy press is used to vibrate and compact the upper part 4-6 times, and then a small press is used to lay the construction geotextile. Finally, partial layers are started, and small presses are used to compact the layers several times to fill the soil and rocks.

[0044] In the description of the present utility model, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without contradiction.

[0048] In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grid and fiber combined reinforced soil foundation structure, characterized in that: include: An upper bearing layer (11) and a lower bearing layer (14), wherein a mesh grid (13) is bonded between the upper bearing layer (11) and the lower bearing layer (14), an upper fiber grid (10) is bonded above the upper bearing layer (11), and a lower fiber grid (15) is bonded below the lower bearing layer (14).

2. A grid and fiber combined reinforced soil foundation structure according to claim 1, characterized in that: A plurality of prefabricated holes (12) are provided on the upper bearing layer (11) and the lower bearing layer (14), and pile foundations are provided inside the prefabricated holes (12).

3. A grid and fiber combined reinforced soil foundation structure according to claim 1, characterized in that: The mesh grid (13) is composed of a plurality of steel bars and iron wires.

4. The grid and fiber combined reinforced soil foundation structure according to claim 1, characterized in that: The upper fiber grid (10) and the lower fiber grid (15) are grids composed of multiple strands of fiber-reinforced plastic.

5. The grid and fiber combined reinforced soil foundation structure according to claim 1, characterized in that: The lower fiber grid (15), the lower bearing layer (14) and the mesh grid (13) are all provided with a plurality of rows of reinforcing ribs (16) running through them in an array.

6. The grid and fiber combined reinforced soil foundation structure according to claim 1, characterized in that: The lower fiber grid (15) and the lower bearing layer (14) are connected by rolling with a rubber roller, and the upper bearing layer (11) and the prefabricated hole (12), and the prefabricated hole (12) and the lower bearing layer (14) are connected by pouring concrete.

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