Filling processing structure

Abstract

The utility model relates to a fill processing structure, and belongs to the field of geotechnical engineering. Comprising a plurality of pipe sets which are stacked in an inverted trapezoid shape, each pipe set comprises a plurality of tubular materials arranged side by side, gaps among the tubular materials are backfilled with backfill soil, geogrids are arranged among the pipe sets to compact the backfill soil and the tubular materials, a gravel leveling layer is laid on the uppermost geogrid, and the gravel leveling layer is laid on the lower geogrid. And the backfill surface of the deloading area and the backfill surface of the non-deloading area are consistent in elevation, smooth and attractive. According to the utility model, the tubular material is adopted to replace backfill, the load shedding effect is obvious, the manufacturing cost is low, the structural strength is high, and the purposes of load shedding and filler strength improvement are realized to the greatest extent.

Description

Technical Field

[0001] The utility model belongs to the field of geotechnical engineering and relates to a filling treatment structure. Background Art

[0002] In projects such as high fill, landslide control, steep slope embankment and soft soil foundation filling, reducing fill load plays a positive role in controlling settlement and improving stability. In terms of load reduction measures, there are methods such as laying light and flexible materials such as straw, construction techniques such as "middle loose and side solid", "fill first and then dig", and methods of filling with light materials such as foam lightweight concrete. The above measures all play an important role in reducing engineering loads.

[0003] In terms of filling materials, foamed lightweight concrete is currently used instead of ordinary filling soil for filling. Since the bulk density of foamed lightweight concrete is smaller than that of ordinary filling soil, the purpose of reducing the filling soil load can be achieved. However, foamed lightweight concrete is expensive, and has disadvantages such as limited load reduction effect and low structural strength.

[0004] For foamed lightweight concrete, this method proposes a fill treatment structure with low cost, good load reduction effect and high structural strength, which can achieve the purpose of load reduction and improve fill strength to the greatest extent. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a filling treatment structure with low cost, good load reduction effect and high structural strength.

[0006] In order to achieve the above object, the utility model provides the following technical solutions:

[0007] A fill processing structure, characterized in that: it comprises a load-reducing fill processing structure and a non-load-reducing fill processing structure, the non-load-reducing fill processing structure is arranged around the load-reducing fill processing structure, and the boundary line between the load-reducing fill processing structure and the non-load-reducing fill processing structure is in a stepped shape;

[0008] The load-reducing filling treatment structure comprises a horizontally arranged pipe group, wherein the pipe group comprises a plurality of tubular materials arranged side by side; the gaps between adjacent tubular materials are filled with backfill soil; and a leveling layer is laid above the tubular materials.

[0009] Optionally, the pipe groups are stacked in at least two layers, and geogrids are arranged between adjacent stacked pipe groups.

[0010] Optionally, the number of tubular materials in each of the tubular material groups is less than or equal to the number of tubular materials in the tubular material group located above it.

[0011] Optionally, the two layers of the tube groups are arranged in an inverted trapezoidal shape.

[0012] Optionally, the inverted trapezoid is symmetrical about its central axis.

[0013] Optionally, the tubular materials in adjacent tubular material groups are arranged in a staggered manner.

[0014] Optionally, the leveling layer is a crushed stone leveling layer.

[0015] Optionally, the non-load-relief filling treatment structure includes a soil-rock mixed filling material.

[0016] Optionally, the tubular material is reinforced concrete.

[0017] Optionally, the vertical distance between the uppermost geogrid and the top surface of the tubular material is smaller than the cross-sectional height of the tubular material.

[0018] The beneficial effects of the utility model are:

[0019] (1) The interior of the tubular material is hollow. Under the same volume, the weight of the tubular material is lower than that of foam lightweight concrete and backfill soil, and the load reduction effect is better.

[0020] (2) The tubular material of this scheme is reinforced concrete. Compared with the foam lightweight concrete commonly used in replacement, reinforced concrete has higher structural strength and can enable the upper part of the backfill area to bear a greater load.

[0021] (3) In terms of construction cost, foam lightweight concrete is expensive, while tubular materials can be prefabricated in the factory and have a low cost, which is more advantageous.

[0022] (4) The interior of the tubular material is hollow. Under certain conditions and environments, it can replace culverts to play a drainage role, saving the cost of culverts.

[0023] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0025] Figure 1 This is a schematic diagram of the fill treatment structure.

[0026] Reference numerals:

[0027] 1. Tubular material, 2. Backfill soil, 3. Geogrid, 4. Leveling layer, 5. Superstructure, 6. Soil-rock mixed filling. DETAILED DESCRIPTION

[0028] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0029] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] See also Figure 1, is a fill treatment structure, which includes a load-reducing fill treatment structure and a non-load-reducing fill treatment structure. The non-load-reducing fill treatment structure is arranged in the non-load-reducing area, and the load-reducing fill treatment structure is arranged in the load-reducing area; the load-reducing fill treatment structure includes a horizontally arranged pipe group, and the pipe group includes a plurality of tubular materials 1 arranged side by side; the gaps between adjacent tubular materials 1 are filled with backfill soil 2; geogrids 3 are arranged between adjacent stacked pipe groups; a crushed stone leveling layer 4 is laid above the tubular material 1 to make the top surface of the backfill area flat. An upper structure 5 is usually arranged above the crushed stone leveling layer 4. The upper structure 5 is determined according to the position of the load-reducing backfill area, and can be a road surface, a building, or other filling structures. The tubular material 1 can be made of reinforced concrete, or other materials that are easy to manufacture and have strong structural bearing capacity can be selected.

[0032] The pipe group is stacked in several layers, and geogrids 3 are arranged between adjacent stacked pipe groups, which can increase the bearing capacity of the ground in the backfill area on the one hand, and reduce uneven settlement of the fill soil on the other hand.

[0033] The number of tubular materials 1 in each tubular material group is less than or equal to the number of tubular materials 1 in the tubular material group above it, that is, a plurality of tubular material groups are stacked and arranged in an inverted trapezoid with a larger top and a smaller bottom, and the inverted trapezoid can be an inverted trapezoid with a central axis symmetry. In addition, the tubular materials 1 in adjacent tubular material groups are arranged in a staggered manner to form a plum blossom shape.

[0034] The area surrounding the load-reducing filling treatment structure is a non-load-reducing area, which is backfilled with soil-rock mixed filler 6. The interface between the load-reducing area structure and the non-load-reducing area soil-rock mixed filler 6 is stepped to ensure the compactness of the backfill.

[0035] In the load-reducing filling treatment structure of the utility model, the backfill soil 2 filled between adjacent tubular materials 1 has a smaller particle size and stronger water permeability than the soil-rock mixed filler 6. On the one hand, it ensures the compactness of the backfill, and on the other hand, it improves the hydrophobic drainage effect of the backfill structure in the load-reducing area. Combined with the hollow tubular material 1 inside, under certain conditions, it can replace the culvert to play a drainage role, saving the cost of setting up the culvert, and serving two purposes in one.

[0036] A load reduction filling treatment method, applied to the above-mentioned load reduction filling treatment structure, comprises the following steps:

[0037] S1, divide the load shedding area and non-load shedding area;

[0038] S2, backfill the non-load-reducing area with soil-rock mixed filler 6, and backfill the load-reducing area with load-reducing filling treatment structure;

[0039] S21, laying gravel soil in the load reduction area;

[0040] S22, laying a layer of tubular material 1 on the gravel soil, and filling the gaps between adjacent tubular materials 1 with gravel;

[0041] S23, laying a geogrid 3 on the layer of tubular material 1, and compacting the tubular material 1 and crushed stone;

[0042] S24, repeating steps S22 to S23 several times until the control elevation is reached;

[0043] S25, laying a crushed stone layer on the uppermost geogrid 3 and leveling it to the same elevation as the non-load reduction area.

[0044] In step S24 , the control elevation is that the vertical distance between the uppermost geogrid 3 and the top surface of the tubular material 1 is less than the cross-sectional height of the tubular material 1 .

[0045] The tubular material 1 of the utility model is hollow inside. Under the same volume, the weight of the tubular material 1 is lower than that of the foam lightweight concrete and the backfill soil 2, and the load reduction effect is better. The tubular material 1 is made of reinforced concrete. Compared with the foam lightweight concrete commonly used in replacement, the reinforced concrete has a higher structural strength, which can make the upper part of the backfill area bear a greater load. In terms of construction cost, the cost of foam lightweight concrete is high, while the tubular material 1 can be prefabricated in the factory, which is low in cost and has more advantages. The tubular material 1 is hollow inside. Under certain conditions and environments, it can replace the culvert to play a drainage role, saving the cost of the culvert.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A filling treatment structure, characterized in that: It comprises a load-reducing filling treatment structure and a non-load-reducing filling treatment structure, wherein the non-load-reducing filling treatment structure is arranged around the load-reducing filling treatment structure, and the boundary line between the load-reducing filling treatment structure and the non-load-reducing filling treatment structure is in a stepped shape; The load-reducing filling treatment structure comprises a horizontally arranged pipe group, wherein the pipe group comprises a plurality of tubular materials (1) arranged side by side; the gaps between adjacent tubular materials (1) are filled with backfill soil (2); and a leveling layer (4) is laid above the tubular materials (1).

2. The backfill processing structure according to claim 1, characterized in that: The pipe groups are stacked in at least two layers, and geogrids (3) are arranged between adjacent stacked pipe groups.

3. The filling treatment structure according to claim 2, characterized in that: The number of tubular materials (1) in each of the tubular material groups is less than or equal to the number of tubular materials (1) in the tubular material group located above it.

4. The filling treatment structure according to claim 2, characterized in that: The two layers of the pipe groups are arranged in an inverted trapezoidal shape.

5. The filling treatment structure according to claim 4, characterized in that: The inverted trapezoid is symmetrical along its central axis.

6. The filling treatment structure according to claim 2, characterized in that: The tubular materials (1) in adjacent tubular material groups are arranged in a staggered manner.

7. The backfill processing structure according to claim 2, characterized in that: The vertical distance between the uppermost geogrid (3) and the top surface of the tubular material (1) is smaller than the cross-sectional height of the tubular material (1).

8. The backfill processing structure according to claim 1, characterized in that: The leveling layer (4) is a crushed stone leveling layer (4).

9. The backfill processing structure according to claim 1, characterized in that: The non-load-relief filling treatment structure comprises a soil-rock mixed filling material (6).

10. The backfill processing structure according to claim 1, characterized in that: The tubular material (1) is reinforced concrete.

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