Reinforced net layered rolling retaining wall structure and construction method thereof

Abstract

The invention relates to the technical field of retaining walls, in particular to a reinforced net layered rolling retaining wall structure and a construction method thereof.The retaining wall structure comprises a body, the body is composed of a wall body and a base, a heel slab is arranged at the position, corresponding to the rear end of the wall body, of the base, and a first slope is arranged between the top of the heel slab and the rear portion of the wall body; a hinge groove is horizontally formed in the middle surface of the first slope; the soil pressing plate is obliquely arranged above the heel plate, the bottom end of the soil pressing plate is matched with the hinge groove, and hydrophobic filler is arranged between the soil pressing plate and the wall body; and the anchoring rib net is composed of a plurality of anchoring ribs, and each anchoring rib is connected with the top end of the soil pressing plate and horizontally extends towards the side away from the wall body. The soil pressing plate is a preliminary soil retaining component and is matched with the slope surface of the soil body, the main body is a main soil retaining component, and the hydrophobic filler filled between the soil pressing plate and the main body serves as a buffer area to absorb and decompose internal pressure caused by angle change of the soil pressing plate, so that displacement of the main body is avoided, and the service life of the structure is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of retaining walls, and in particular to a reinforced mesh layered rolling retaining wall structure and a construction method thereof. Background Art

[0002] Retaining walls are structures that support roadbed fill or hillside soil to prevent deformation and instability of fill or soil. Most existing retaining walls are reinforced concrete cantilever retaining walls, but when the bearing capacity of the foundation is low or when the backfill is used, the higher foundation bearing capacity of the retaining wall cannot meet the requirements, posing a safety hazard. Summary of the invention

[0003] The present invention provides a reinforced mesh layered rolled retaining wall structure, wherein the earth plate is a preliminary retaining component and is adapted to the surface slope of the hillside soil, while the main body is the main retaining component. The hydrophobic filler filled between the two serves as a buffer zone to absorb and decompose the internal pressure caused by the angle change of the earth plate, thereby avoiding displacement of the main body and extending the life of the structure.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a reinforced mesh layered rolled retaining wall structure, comprising: a main body, the main body is composed of a wall body and a base, the base is provided with a toe plate corresponding to the front end of the wall body, and a heel plate is provided corresponding to the rear end of the wall body, a first slope is provided between the top of the heel plate and the rear of the wall body, and a hinge groove is horizontally opened on the middle surface of the first slope; an earth pressing plate, the earth pressing plate is obliquely arranged above the heel plate and cooperates with the hinge groove through the bottom end, a hydrophobic filler is provided between the earth pressing plate and the wall body, and a vegetation layer is provided on the top of the hydrophobic filler; an anchoring reinforcement mesh, the anchoring reinforcement mesh is composed of a plurality of anchor bars, each of the anchor bars is respectively connected to the top of the earth pressing plate, and extends horizontally to the side away from the wall body.

[0005] Preferably, the compacting plate is formed by splicing a plurality of prefabricated plates, and each prefabricated plate is provided with a circular insert along the edge at the bottom and a circular slot along the edge at the top, and two adjacent prefabricated plates are hingedly connected to the circular slot via the circular insert.

[0006] Preferably, the anchoring reinforcement mesh is arranged in multiple layers, and each of the anchoring reinforcement meshes is fixedly connected to the corresponding top of the prefabricated panel.

[0007] Preferably, a horizontal supporting layer is provided in the hydrophobic filler corresponding to the top of each prefabricated board.

[0008] Preferably, a second slope is provided between the top of the toe board and the wall body, and an anchor hole perpendicular to the surface of the second slope is provided through the base; an anchor pipe extending downwardly toward the base is provided in the anchor hole, the top end of the anchor pipe is fixedly connected to the second slope, and an anchor block is provided at the bottom end.

[0009] Preferably, a construction method comprises the following steps:

[0010] Step 1: trim the slope of the hillside soil and level the foundation pit along the bottom of the slope;

[0011] Step 2: Place several prefabricated main bodies in the base trench in sequence, and fill the gap between the base and the foundation pit trench to arrange the main bodies neatly along the length direction;

[0012] Step 3: Drill a channel along the anchor hole to the bottom of the hillside soil, and insert the anchor pipe along the channel;

[0013] Step 4: Install the soil pressure plate, and fill it with hydrophobic filler to make it fit the surface of the hillside soil, and then anchor the soil pressure plate with anchor bars to form an anchor bar network;

[0014] Step 5: Lay a vegetation layer on top of the drainage fill.

[0015] Preferably, in step three, after drilling is completed, water is pumped at high pressure to flush the bottom of the hillside soil through the anchor pipe, and then the mud is pumped out by the water pump to form an anchoring space, and finally concrete is pumped into the anchoring space through the anchor pipe, and the anchor pipe is anchored to the second slope.

[0016] Preferably, in step 4, the earth pressing plate is installed in multiple layers, and after each layer of prefabricated plates is assembled, hydrophobic fillers and horizontal support layers are sequentially filled until they are flush with the top of the prefabricated plates and then gravity compacted, and the horizontal support layer is collected from the hillside soil.

[0017] The beneficial effects of the present invention are as follows: the earthplate is a preliminary retaining component and is adapted to the slope of the hillside soil surface, while the main body is the main retaining component. The hydrophobic filler filled between the two serves as a buffer zone. When the hillside soil flows and deforms, the inclination angle of the earthplate changes. At this time, the hydrophobic filler absorbs and decomposes the squeezing force of the earthplate by deforming under force. The earthplate is spliced ​​by a plurality of prefabricated panels. During the construction process, the dependence on large machinery can be reduced, and the size and shape of the earthplate can be adjusted more flexibly and conveniently. Each anchoring rib extends into the hillside soil by penetrating the prefabricated panels, thereby improving the fixing force of each prefabricated panel. The horizontal support layer is used to shape the top of each layer of hydrophobic filler, thereby improving the horizontal support force of the hydrophobic filler between the earthplate and the wall. The solidified concrete in the anchoring space forms an integrated structure with the anchor pipe and the anchor hole. The anchoring effect of the main body and the hillside soil can be achieved by concrete pouring under the guidance of the anchor pipe, effectively avoiding the problem of displacement of the main body. The layered installed soil compaction plates can be adaptively fitted with the surface of the hillside soil. When each layer of prefabricated plates is in place, the hydrophobic filler and the horizontal support layer are gravity compacted by the compaction device, so that each prefabricated plate is compacted with the hillside soil, avoiding landslides inside the hillside soil caused by gaps, and effectively extending the life of the slope protection. The anchoring net extends horizontally into the hillside soil, thereby increasing the lateral fixing tension of each prefabricated plate, making the soil compaction plate more stable as a whole. In addition, during the change of terrain, the spliced ​​soil compaction plates can change locally according to the terrain, thereby avoiding the overall displacement of the soil compaction plates and reducing the amount of engineering work for later repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] In the figure: 1, wall; 2, base; 3, toe board; 4, heel board; 5, first slope; 6, hinge groove; 7, hydrophobic filler; 8, vegetation layer; 9, anchor bar; 10, prefabricated board; 11, round insert; 12, round slot; 13, horizontal support layer; 14, second slope; 15, anchor pipe; 16, anchor block. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] according to Figure 1 As shown, a reinforced mesh layered rolled retaining wall structure comprises: a main body, which is composed of a wall body and a base 2, wherein the base 2 is provided with a toe plate 3 corresponding to the front end of the wall body 1, and a heel plate 4 corresponding to the rear end of the wall body 1, a first slope 5 is provided between the top of the heel plate 4 and the rear part of the wall body 1, and a hinge groove 6 is horizontally opened on the middle surface of the first slope 5; an earth pressing plate, which is obliquely arranged above the heel plate 4 and cooperates with the hinge groove 6 through the bottom end, a hydrophobic filler 7 is provided between the earth pressing plate and the wall body 1, and a vegetation layer 8 is provided on the top of the hydrophobic filler; an anchoring reinforcement mesh, which is composed of a plurality of anchor bars 9, each of which is connected to the top of the earth pressing plate and extends horizontally to the side away from the wall body 1.

[0023] In this structure, the earth-pressing plate is a preliminary retaining component and is adapted to the surface slope of the hillside soil, while the main body is the main retaining component. The hydrophobic filler 7 filled between the two serves as a buffer zone. When the hillside soil flows and deforms, the inclination angle of the earth-pressing plate changes. At this time, the hydrophobic filler 7 absorbs and decomposes the squeezing force of the earth-pressing plate by deforming under force.

[0024] The earth pressing plate is composed of a plurality of prefabricated plates 10, and each prefabricated plate 10 is provided with a round insert 11 along the bottom edge, and a round slot 12 along the top edge, and two adjacent prefabricated plates 10 are hingedly matched with the round insert 11 and the round slot 12. The split earth pressing plate can reduce the dependence on large machinery during construction, and make the size and shape of the earth pressing plate more flexible and convenient to adjust.

[0025] The anchoring reinforcement net is arranged in multiple layers, and each of the anchoring reinforcement nets is fixedly connected to the top of the corresponding prefabricated panel 10. In this structure, each anchoring reinforcement extends into the hillside soil by penetrating the prefabricated panel 10, thereby improving the fixing force of each prefabricated panel 10.

[0026] Horizontal support layers 13 are respectively arranged in the hydrophobic filler 7 corresponding to the top of each prefabricated board 10. The horizontal support layer 13 is used to shape the top of each layer of hydrophobic filler 7, thereby improving the horizontal support force of the hydrophobic filler 7 between the earth plate and the wall body 1.

[0027] A second slope 14 is provided between the top of the toe board 3 and the wall body 1, and an anchor hole perpendicular to the surface of the second slope 14 is provided through the base 2; an anchor pipe 15 extending downward from the base 2 is provided in the anchor hole, and the top end of the anchor pipe 15 is fixedly connected to the second slope 14, and an anchor block 16 is provided at the bottom end.

[0028] The structure can achieve the anchoring effect between the main body and the hillside soil by means of concrete pouring using the guidance of the anchor pipe 15 .

[0029] A construction method comprising the following steps: Step 1: trim the slope of the hillside soil and level the foundation pit along the bottom of the slope; Step 2: Place several prefabricated main bodies in the base trench in sequence, and fill the gap between the base and the foundation pit trench to arrange the main bodies neatly along the length direction; Step 3: Drill a channel along the anchor hole to the bottom of the hillside soil, and insert the anchor pipe 15 along the channel; after the channel drilling is completed, high-pressure water is pumped to the bottom of the hillside soil through the anchor pipe 15, and then the mud is pumped out by the water pump to form an anchoring space, and finally concrete is pumped into the anchoring space through the anchor pipe 15, and the anchor pipe 15 is anchored to the second slope; In this step, the concrete solidified in the anchoring space forms an integrated structure with the anchor pipe 15 and the anchor hole, thereby improving the anchoring force of the anchor pipe 15 and effectively avoiding the problem of main body displacement; Step 4: Install the earth-pressing plate, and make it fit with the surface of the hillside soil by filling it with hydrophobic filler 7, and then anchor the earth-pressing plate with anchor bars 9 to form an anchoring bar network; wherein, the earth-pressing plate is installed in layers for multiple times, and after each layer of prefabricated panels 10 is assembled, the hydrophobic filler 7 and the horizontal support layer 13 are filled in sequence until it is flush with the top of the prefabricated panels 10, and then gravity compaction is performed, and the horizontal support layer 13 is taken from the hillside soil; In this step, the layered installed earth-pressing plates can be adaptively fitted with the surface of the hillside soil. When each layer of prefabricated plates 10 is in place, the hydrophobic filler 7 and the horizontal support layer 13 are gravity-pressed by a rolling device, so that each prefabricated plate 10 is firmly attached to the hillside soil, avoiding landslides inside the hillside soil due to gaps, and effectively extending the life of the slope protection. The anchoring net extends horizontally into the hillside soil, thereby increasing the lateral fixing tension of each prefabricated plate 10, making the earth-pressing plate more stable as a whole. In addition, during the change of terrain, the spliced ​​earth-pressing plates can change locally according to the terrain, thereby avoiding the overall displacement of the earth-pressing plates and reducing the amount of engineering work for later repairs. Step 5: Lay a vegetation layer 8 on the top of the drainage fill, and use the vegetation layer 8 to protect the structure on the top of the retaining wall to avoid the problem of fill loss.

[0030] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A reinforced mesh layered rolling retaining wall structure, characterized in that: include: A main body, the main body being composed of a wall body and a base (2), the base (2) being provided with a toe plate (3) corresponding to the front end of the wall body (1), and a heel plate (4) corresponding to the rear end of the wall body (1), a first slope (5) being provided between the top of the heel plate (4) and the rear part of the wall body (1), and a hinge groove (6) being provided horizontally on the middle surface of the first slope (5); A soil pressing plate, the soil pressing plate being arranged obliquely above the heel plate (4) and cooperating with the hinge groove (6) through the bottom end, a hydrophobic filler (7) being provided between the soil pressing plate and the wall body (1), and a vegetation layer (8) being provided on the top of the hydrophobic filler; An anchoring bar mesh, the anchoring bar mesh is composed of a plurality of anchor bars (9), each of the anchor bars (9) being connected to a top end of the earth pressing plate and extending horizontally toward a side away from the wall body (1).

2. A reinforced mesh layered rolling retaining wall structure according to claim 1, characterized in that: The soil compaction plate is formed by splicing a plurality of prefabricated plates (10), and each prefabricated plate (10) is provided with a circular insert strip (11) along the edge at the bottom, and a circular slot (12) along the edge at the top, and two adjacent prefabricated plates (10) are hingedly connected to the circular slot (12) via the circular insert strip (11).

3. The reinforced mesh layered rolling retaining wall structure according to claim 2 is characterized in that: The anchoring reinforcement mesh is arranged in multiple layers, and each of the anchoring reinforcement meshes is fixedly connected to the top of the corresponding prefabricated panel (10).

4. The reinforced mesh layered rolling retaining wall structure according to claim 2 is characterized in that: A horizontal support layer (13) is provided in the hydrophobic filler (7) corresponding to the top of each prefabricated panel (10).

5. The reinforced mesh layered rolling retaining wall structure according to claim 1 is characterized in that: A second slope (14) is provided between the top of the toe board (3) and the wall body (1); an anchor hole perpendicular to the surface of the second slope (14) is provided through the base (2); an anchor pipe (15) extending downwardly from the base (2) is provided in the anchor hole; the top end of the anchor pipe (15) is fixedly connected to the second slope (14), and the bottom end is provided with an anchor block (16).

6. A construction method for the reinforced mesh layered rolling retaining wall structure according to claims 1 to 5, characterized in that: The following steps are involved: Step 1: trim the slope of the hillside soil and level the foundation pit along the bottom of the slope; Step 2: Place several prefabricated main bodies in the base trench in sequence, and fill the gap between the base and the foundation pit trench to arrange the main bodies neatly along the length direction; Step 3: Drill a channel along the anchor hole toward the bottom of the hillside soil, and insert an anchor pipe (15) along the channel; Step 4: installing a soil pressure plate, and filling the soil pressure plate with a hydrophobic filler (7) to make the soil pressure plate fit the surface of the hillside soil, and then anchoring the soil pressure plate with anchor bars (9) to form an anchor bar network; Step 5: Lay a vegetation layer (8) on top of the drainage fill.

7. The construction method according to claim 6, characterized in that: In step three, after the drilling is completed, high-pressure water is pumped to flush the bottom of the hillside soil through the anchor pipe (15), and then the mud is pumped out by the water pump to form an anchoring space. Finally, concrete is pumped into the anchoring space through the anchor pipe (15), and the anchor pipe (15) is anchored to the second inclined surface.

8. The construction method according to claim 6, characterized in that: In step 4, the soil pressing plate is installed in layers for multiple times, and after each layer of prefabricated plate (10) is assembled, the hydrophobic filler (7) and the horizontal support layer (13) are filled in sequence until it is flush with the top of the prefabricated plate (10), and then gravity compaction is performed, and the horizontal support layer (13) is collected from the hillside soil.

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