A wrapped embankment brick-faced reinforced retaining wall structure

Abstract

The application provides a wrapped embankment brick surface reinforced retaining wall structure, which comprises a retaining ground, and a retaining wall is arranged on the top of the retaining ground; the retaining wall comprises multiple layers of hollow bricks which are stacked and formed, the hollow bricks in the same layer are transversely assembled in rows, the hollow bricks in the upper and lower layers are staggered, and connecting pieces are arranged between the hollow bricks in the upper and lower layers. The hollow bricks are assembled on the top of the retaining ground, the hollow bricks of the retaining wall are assembled by using the transverse row assembly and longitudinal staggered assembly process, the hollow bricks in the upper and lower layers are connected through the connecting pieces, and the hollow bricks in the upper layer should be staggered with the wall bricks in the next layer during assembly. The connecting pieces are used for fixing the positions of the hollow bricks, connecting the hollow bricks in the upper and lower layers, fixing the geotechnical net, and connecting the geotechnical net with the retaining wall.

Description

Technical Field

[0001] This invention belongs to the field of retaining wall foundation structure, and in particular relates to a wrapped embankment brick-faced reinforced retaining wall structure. Background Technology

[0002] Reinforced soil retaining walls are a type of retaining structure widely used in highway, railway, and water conservancy projects. They maintain structural stability through the friction between the reinforcing material and the backfill soil. Traditional reinforced retaining walls typically use concrete panels or modules as the wall surface, with reinforced soil backing.

[0003] There are some shortcomings in the existing technology: the connection between traditional reinforced soil retaining wall modules is not strong enough, and they are prone to misalignment or even instability under loads such as uneven settlement of the foundation or earthquakes. Summary of the Invention

[0004] In view of this, the present invention aims to propose a wrapped embankment brick-faced reinforced retaining wall structure to solve the technical problem that the connection between reinforced soil retaining wall modules in the prior art is not strong enough, and that it is prone to misalignment or even instability under loads such as uneven foundation settlement or earthquakes.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A type of enclosed embankment brick-faced reinforced retaining wall structure includes a retaining foundation, on top of which a retaining wall is piled. The retaining wall is formed by stacking multiple layers of hollow bricks, with hollow bricks in the same layer arranged in horizontal rows and hollow bricks in alternating rows between upper and lower layers. Connectors are provided between the upper and lower layers of hollow bricks, and geonets are also provided between the upper and lower layers of hollow bricks. The connectors are used to connect the upper and lower layers of hollow bricks and to limit the geonets.

[0007] Connectors are provided at both ends of the top of the same hollow brick. The connectors include mounting holes, which are opened at both ends of the top of the hollow brick. Threaded sleeves are fixedly connected in the mounting holes. Insertion bodies are threadedly connected to the inner wall of the threaded sleeves. Annular hanging grooves are opened on the surface of the insertion bodies. Insertion grooves that mate with the insertion bodies are opened at both ends of the bottom of the hollow brick.

[0008] Furthermore, two layers of hollow bricks are spaced between two vertically distributed and opposite geonets to create a backfill space. An enclosure is placed within the backfill space, and the top and bottom of the enclosure are in contact with the geonet.

[0009] Furthermore, the top of the connector has a connector cavity, a connecting pin is inserted into the connector cavity, a first support spring is provided inside the connector cavity, the two ends of the first support spring are fixedly connected to the connector body and the bottom of the connector cavity respectively, a support body is fixedly connected to the top of the connecting pin, and an annular airbag is sleeved on the surface of the connecting pin, the top and bottom of the annular airbag are fixedly connected to the support body and the connector body respectively.

[0010] Furthermore, a clamping ring is slidably sleeved in the annular mounting groove, and a plurality of linkage rods are fixedly connected to the top of the clamping ring. The plurality of linkage rods extend through the plug body and into the inner space of the annular airbag body. A linkage ring is fixedly connected between the top ends of the plurality of linkage rods. The linkage ring is sleeved on the surface of the docking pin, and a second support spring is sleeved on the surface of the docking pin. The two ends of the second support spring are fixedly connected to the linkage ring and the top end of the plug body, respectively.

[0011] Furthermore, the geonet includes longitudinal and transverse meshes, which form mesh openings, and the corners of the mesh openings are set within the annular hanging groove.

[0012] Furthermore, the hollow brick has a hollow channel and receiving openings on both sides. After the hollow bricks in the same layer are assembled, the receiving openings of adjacent hollow bricks in the same layer are connected to form a filling channel.

[0013] Furthermore, the encapsulation body includes an encapsulation layer, within which soil is encapsulated.

[0014] Furthermore, a connecting hole is provided at the top of the retaining foundation, and a connecting rod is fixedly connected in the connecting hole. The hollow bricks at the bottom of the retaining wall are inserted into the connecting rod through a slot.

[0015] Furthermore, a concrete foundation is poured between the top layer of the retaining wall and the top of the enclosure at the top layer position.

[0016] Compared with the prior art, the wrapped embankment brick-faced reinforced retaining wall structure of the present invention has the following beneficial effects:

[0017] The present invention describes the construction of a retaining wall by assembling hollow bricks on top of the foundation. The retaining wall formed by these hollow bricks is assembled using a process of horizontal row assembly and longitudinal staggered assembly. The upper and lower layers of hollow bricks are connected by connectors. During assembly, care should be taken to stagger the upper layer of hollow bricks with the lower layer. The connectors are used to fix the position of the hollow bricks, maintain the connection between the upper and lower layers, and also serve to fix the geonet reinforcement, maintaining the connection between the geonet and the retaining wall.

[0018] The mechanical connection between the upper and lower layers of hollow bricks is achieved through connectors. Combined with the staggered construction method of the upper and lower layers, the overall stability and deformation resistance of the wall are greatly improved, which is conducive to resisting uneven settlement of the foundation and seismic loads.

[0019] The geonet is attached to the annular mounting groove through the mesh openings and tightened by the clamping ring, ensuring reliable fixation of the geonet.

[0020] By using spaced-apart geonets and their containment structures, the self-weight of the upper fill and the dynamic load of traffic are converted into tensile stress on the containment structures, making the entire reinforced soil a self-tightening system. This dynamically enhances the mechanical properties of the embankment soil and the overall stability of the retaining wall, thus achieving reinforcement and strengthening. Attached Figure Description

[0021] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 This is a structural schematic diagram of a brick-faced reinforced retaining wall structure for an embankment, as described in an embodiment of the present invention.

[0023] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0024] Figure 3 This is a schematic diagram of the enclosure of a brick-faced reinforced retaining wall structure for an embankment, as described in an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the retaining wall structure of a brick-faced reinforced retaining wall structure for embankments according to an embodiment of the present invention;

[0026] Figure 5 for Figure 4 Enlarged view of section B;

[0027] Figure 6 for Figure 5 Enlarged view of section C;

[0028] Figure 7 This is a schematic diagram of the retaining foundation and retaining wall structure of a brick-faced reinforced retaining wall structure for an embankment, as described in an embodiment of the present invention.

[0029] Figure 8 for Figure 7 Enlarged view of section D in the middle;

[0030] Figure 9 This is a cross-sectional view of a hollow pile of a brick-faced reinforced retaining wall structure for an embankment, as described in an embodiment of the present invention.

[0031] Figure 10 for Figure 9 Enlarged view of section E in the middle;

[0032] Figure 11 for Figure 9 Enlarged view of section F in the middle;

[0033] Figure 12 This is a schematic diagram of the connecting component of a wrapped embankment brick-faced reinforced retaining wall structure according to an embodiment of the present invention;

[0034] Figure 13 This is a schematic diagram of the second structure of the plug and the connecting pin of a wrapped embankment brick-faced reinforced retaining wall structure according to an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1-Retaining foundation; 2-Retaining wall; 3-Hollow brick; 301-Hollow passage; 302-Reception opening; 4-Reinforced geonet; 401-Longitudinal mesh; 402-Transverse mesh; 5-Wrapping body; 501-Wrapping layer; 502-Soil; 6-Second support spring; 7-Linking ring; 8-Mounting hole; 9-Threaded sleeve; 10-Plug-in body; 11-Annular hanging groove; 12-Plug-in groove; 13-Connecting hole; 15-Plug-in cavity; 16-Connecting pin; 17-First support spring; 18-Support body; 19-Annular airbag body; 20-Pressure ring; 21-Linking rod; 22-Concrete foundation; 23-Connecting rod; 24-Soil layer. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0038] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] like Figures 1 to 13 As shown, in one embodiment, a wrapped embankment brick-faced reinforced retaining wall structure includes a retaining foundation 1, on top of which a retaining wall 2 is stacked. The retaining wall 2 is formed by stacking multiple layers of hollow bricks 3. The hollow bricks 3 in the same layer are assembled horizontally in rows, and the upper and lower layers of hollow bricks 3 are staggered. Connectors are provided between the upper and lower layers of hollow bricks 3, and a geonet 4 is also provided between the upper and lower layers of hollow bricks 3. The connectors are used to connect the upper and lower layers of hollow bricks 3 and to limit the position of the geonet 4.

[0042] The retaining foundation 1 is constructed of concrete and reinforced steel. Hollow bricks are assembled on top of the retaining foundation 1. The retaining wall 2, formed by the hollow bricks 3, is assembled using a horizontal row-by-row and longitudinally staggered assembly process. The upper and lower layers of hollow bricks 3 are connected by connectors. During assembly, care should be taken to stagger the upper layer of hollow bricks 3 with the lower layer. Connectors are used to fix the position of the hollow bricks 3, maintain the connection between the upper and lower layers, and also limit the movement of the geonet 4, ensuring its connection to the retaining wall 2.

[0043] Two layers of reinforced geonet 4 are arranged vertically and oppositely, with two layers of hollow bricks 3 between them to create a backfill space. An enclosure 5 is placed in the backfill space, and the top and bottom of the enclosure 5 are in contact with the reinforced geonet 4.

[0044] Specifically, a concrete foundation 22 is poured between the top layer of the retaining wall 2 and the top of the enclosure 5 at the top layer position. The concrete foundation 22 is used to reinforce the top of the retaining wall 2 and to support objects installed on the roadside.

[0045] Specifically, the encapsulation body 5 includes an encapsulation layer 501, which is a geotextile, and the encapsulation layer 501 contains soil 502.

[0046] The self-weight of the embankment 5 and the pressure generated by the dynamic load on the upper roadway create tensile stress on the embankment 5, causing the embankment 5 to tighten itself, thereby enhancing the mechanical properties of the embankment soil 502. The retaining wall 2 maintains its stability through the friction between the geonet 4 and the embankment 5.

[0047] The synergistic effect of the geonet 4 and the encapsulation 5 aims to transform this stress mode into a constrained state. The implementation process can be broken down into the following steps:

[0048] Step 1: The load is converted into downward pressure (vertical force);

[0049] Upper load: includes the self-weight of the embankment upper fill and the dynamic load of vehicles traveling on the road.

[0050] Force transmission: These vertically downward loads act directly on the enclosure 5.

[0051] Result: Package 5 is subjected to a vertically downward force, which can be decomposed into two parts:

[0052] Part of it compacts itself.

[0053] The other part, which is also the key part, is transformed into vertical pressure on the upper and lower layers of geonet 4 through its contact with the upper and lower layers of geonet 4.

[0054] Step 2: Applying downward pressure triggers friction (vertical force → horizontal force).

[0055] Interface friction: There is a huge surface friction between the geonet 4 (usually a geogrid) and the soil (envelope 5) in contact with it above and below.

[0056] Mechanical transformation: When the enclosure 5 "settles" downward under vertical load, it will try to drag the upper and lower layers of reinforcing geonet 4 that are in close contact with it downward together.

[0057] Result: This "downward dragging" trend is transformed at the friction interface between the geonet and the soil into a horizontally inward frictional force (i.e., tensile force) acting on the geonet itself. This completes the first key transformation from vertical load to horizontal tensile force.

[0058] Step 3: Tension and constrain the soil by 4-stretching geonet (transfer and balance of horizontal forces).

[0059] Tensioning effect: The horizontal tension generated in the previous step causes the geonet 4 to be tensioned, like a taut string.

[0060] Internal constraint: The tensioned geonet 4 exerts an inward constraint force on the entire reinforced soil area (enclosure 5) it encloses. This constraint force is like "tying a belt" around the loose soil, limiting the tendency of the soil to deform (expand).

[0061] Equilibrium of forces:

[0062] External thrust: The soil behind the wall still tends to push outward against the retaining wall due to its own weight (active earth pressure).

[0063] Internal tension: The tensioned geonet 4 generates an inward restraint tension.

[0064] Self-tightening system: These two forces counteract each other within the reinforced soil. Ideally, the inward tension generated by the tensioned geonet balances or largely counteracts the outward thrust of the soil. Explanation of "self-tightening": The system achieves a stable mechanical equilibrium through the pre-tensioned reinforcement, rather than transferring all the thrust to the outermost wall surface.

[0065] Step 4: The force is finally transferred to the wall and stabilizes the structure;

[0066] Force anchoring: The other end of the geonet 4 is anchored to the hollow brick wall surface through connectors.

[0067] Overall stability: Therefore, the enormous tensile force generated on the geonet 4 will ultimately be transferred to the wall surface. This tensile force exerts a backward "pulling" effect on the wall surface, which helps resist the tendency of the wall surface to tilt outward, thereby greatly enhancing the overall stability of the retaining wall.

[0068] like Figures 4 to 6 , Figures 9 to 13 As shown, in one embodiment, connectors are provided at both ends of the top of the same hollow brick 3. The connectors include mounting holes 8, which are opened at both ends of the top of the hollow brick 3. Threaded sleeves 9 are fixedly connected in the mounting holes 8. Insertion bodies 10 are threadedly connected to the inner wall of the threaded sleeves 9. Annular hanging grooves 11 are opened on the surface of the insertion bodies 10. Insertion grooves 12 that mate with the insertion bodies 10 are opened at both ends of the bottom of the hollow brick 3.

[0069] The top of the connector 10 has a connector cavity 15, into which a connecting pin 16 is inserted. A first support spring 17 is installed inside the connector cavity 15, with its two ends fixedly connected to the connector 10 and the bottom of the connector cavity 15, respectively. A support body 18 is fixedly connected to the top of the connecting pin 16. An annular airbag 19 is fitted onto the surface of the connecting pin 16, with its top and bottom ends fixedly connected to the support body 18 and the connector 10, respectively. It should be understood that the annular airbag 19 forms a cavity with the support body 18 and the connector 10. Under the pressure of the hollow brick 3, the support body 18 will be squeezed downwards. As the support body 18 moves downwards, it will squeeze the cavity, causing the annular airbag 19 to bulge and adhere tightly to the inner wall of the connector cavity 15, increasing adhesion.

[0070] A clamping ring 20 is slidably sleeved in the annular mounting groove 11. Multiple linkage rods 21 are fixedly connected to the top of the clamping ring 20. The multiple linkage rods 21 extend through the plug body 10 and into the inner space of the annular airbag body 19. A linkage ring 7 is fixedly connected between the top ends of the multiple linkage rods 21. The linkage ring 7 is sleeved on the surface of the docking pin 16. A second support spring 6 is sleeved on the surface of the docking pin 16. The two ends of the second support spring 6 are fixedly connected to the linkage ring 7 and the top end of the plug body 10, respectively.

[0071] The geonet 4 includes a longitudinal mesh 401 and a transverse mesh 402. The longitudinal mesh 401 and the transverse mesh 402 form mesh openings, and the corners of the mesh openings are set in the annular hanging groove 11.

[0072] Specifically, the retaining foundation 1 is poured within the soil layer 24. A connecting hole 13 is provided at the top of the retaining foundation 1, and a connecting rod 23 is fixedly connected within the connecting hole 13. The bottom hollow brick 3 of the retaining wall 2 is inserted into the connecting rod 23 via a slot 12. The retaining wall 2 is constructed from multiple layers of hollow bricks 3. The bottom hollow brick 3 is fitted onto the connecting rod 23 via the slot 12 at its bottom, achieving initial positioning and anti-slip properties.

[0073] The corners of the bottom layer of geonet 4 are set on the connecting rod 23, and with the pressing action of the bottom hollow brick 3, it plays a limiting role in the geonet 4, which helps to maintain the stability of the geonet 4.

[0074] During installation, the corners of the mesh are hung in the annular mounting groove 11. Then, a clamping ring 20 is placed in the annular mounting groove 11. When the upper hollow brick 3 is pressed down, its bottom insertion groove 12 presses against the support body 18 at the top of the insertion body 10. The support body 18 presses down on the connecting pin 16, compressing the first support spring 17 and simultaneously squeezing the annular air bladder 19. The annular air bladder 19 expands and presses against the inner wall of the insertion cavity 15, increasing adhesion. The support body 18 pushes downwards the linkage ring 7 and linkage rod 21, causing the clamping ring 20 to slide downwards within the annular mounting groove 11, thus tightly pressing the mesh. The second support spring 6 assists in resetting and balancing the force. This linkage mechanism ensures that the geonet 4 can be continuously and reliably compressed under load conditions.

[0075] The clamping ring 20 can be a rubber ring, which has a certain buffering performance, reducing the pressure damage to the geonet 4 during the clamping process.

[0076] Hollow bricks 3 have hollow channels 301 and receiving openings 302 on both sides. After the hollow bricks 3 of the same layer are assembled, the receiving openings 302 of adjacent hollow bricks 3 of the same layer are joined together to form a filling channel. During construction, sand, gravel or planting soil can be filled into it. The upper and lower layers of hollow bricks 3 are assembled in an alternating manner similar to bricklaying to disperse vertical seams and enhance overall integrity.

[0077] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wrapped embankment brick-faced reinforced retaining wall structure comprising a retaining ground foundation (1), characterized in that: The top of the retaining wall foundation (1) is stacked with a retaining wall (2), the retaining wall (2) comprises a plurality of layers of hollow bricks (3) stacked, the hollow bricks (3) in the same layer are assembled transversely in rows, the hollow bricks (3) in the upper and lower layers are staggered, connecting pieces are arranged between the hollow bricks (3) in the upper and lower layers, and geotechnical nets (4) are arranged between the hollow bricks (3) in the upper and lower layers; the connecting pieces are used for connecting the hollow bricks (3) in the upper and lower layers and limiting the geotechnical nets (4). The connecting pieces are arranged at the top of the hollow bricks (3), the connecting pieces comprise mounting holes (8), the mounting holes (8) are arranged at the two ends of the top of the hollow bricks (3), threaded sleeves (9) are fixedly connected in the mounting holes (8), plug-in bodies (10) are threadedly connected on the inner walls of the threaded sleeves (9), annular hanging grooves (11) are arranged on the surfaces of the plug-in bodies (10), and plug-in grooves (12) are arranged at the two ends of the bottoms of the hollow bricks (3) and are in butt joint with the plug-in bodies (10). The top end of the plug-in body (10) is provided with a plug-in cavity (15), a butt joint pin (16) is inserted into the plug-in cavity (15), a first supporting spring (17) is arranged in the plug-in cavity (15), the two ends of the first supporting spring (17) are fixedly connected with the plug-in body (10) and the bottom end of the plug-in cavity (15) respectively, a supporting body (18) is fixedly connected to the top of the butt joint pin (16), an annular air bag body (19) is sleeved on the surface of the butt joint pin (16), and the top end and the bottom end of the annular air bag body (19) are fixedly connected with the supporting body (18) and the plug-in body (10) respectively.

2. A reinforced retaining wall structure of wrapped embankment brick facing according to claim 1, characterized in that: Two geotechnical nets (4) distributed above and below and opposite to each other are spaced apart by two layers of hollow bricks (3) to form a filling space, and a wrapping body (5) is arranged in the filling space and in contact with the geotechnical nets (4).

3. The reinforced retaining wall structure of claim 1, wherein: A compression ring (20) is slidably sleeved in the annular hanging groove (11), a plurality of linkage rods (21) are fixedly connected to the top of the compression ring (20), the plurality of linkage rods (21) extend to the inside space of the annular air bag body (19) after penetrating through the plug-in body (10), a linkage ring (7) is fixedly connected between the top ends of the plurality of linkage rods (21), the linkage ring (7) is sleeved on the surface of the butt joint pin (16), a second supporting spring (6) is sleeved on the surface of the butt joint pin (16), and the two ends of the second supporting spring (6) are fixedly connected with the linkage ring (7) and the top end of the plug-in body (10) respectively.

4. The reinforced retaining wall structure of claim 3, wherein: The geotechnical net (4) comprises a longitudinal net body (401) and a transverse net body (402), the longitudinal net body (401) and the transverse net body (402) form a mesh, and the mesh corner is arranged in the annular hanging groove (11).

5. A reinforced retaining wall structure of wrapped embankment brick facing according to claim 2, wherein: The hollow brick (3) has a hollow channel (301) and two receiving openings (302) on the two sides, the receiving openings (302) between adjacent hollow bricks (3) in the same layer are in butt joint after assembly between the hollow bricks (3) in the same layer, and a filling channel is formed.

6. A wrapped embankment brick-faced reinforced retaining wall structure according to claim 5, wherein: The package body (5) comprises a package layer (501), and a soil body (502) is wrapped in the package layer (501).

7. The reinforced retaining wall structure of claim 1, wherein: The retaining wall (2) is provided with a connecting hole (13) at the top of the retaining wall (2), and a butt joint rod (23) is fixedly connected in the connecting hole (13); the hollow bricks (3) at the bottom layer of the retaining wall (2) are inserted on the butt joint rod (23) through the insertion grooves (12).

8. A reinforced retaining wall structure of wrapped embankment brick facing according to claim 2, characterized in that: The concrete foundation (22) is poured between the top of the package body (5) at the top layer of the retaining wall (2) and the top layer of the retaining wall (2).

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