Unit wall body of prefabricated drainage retaining wall and prefabricated drainage retaining wall

Abstract

The invention relates to the field of retaining walls, and discloses a prefabricated drainage retaining wall unit wall and a prefabricated drainage retaining wall. The bottom of the unit wall body is hit into the ground, the unit wall body comprises a first plate wall, the front end face sinks inwards to form a drainage cavity, and the edge of the drainage cavity extends forwards to form a positioning fence; a third drainage through hole penetrating through the first plate wall is further formed in the drainage cavity; a mounting hole is formed in the second siding wall, and a drainage cylinder is arranged in the mounting hole; a positioning groove matched with the positioning fence is formed in the rear end face of the second plate wall. The first connecting plates are arranged on the left and right sides of the first plate wall; the second connecting plates are arranged on the left side and the right side of the second plate wall and locked with the first connecting plates through connecting bolts; the invention further discloses a prefabricated drainage retaining wall with the unit wall. The fourth drainage through hole which is mainly used for discharging soil water is arranged to be of a conical structure with the small front portion and the large rear portion, the air pressure of the rear half section is reduced, accumulated water can conveniently seep out of the soil, the drainage speed is increased, and meanwhile soil blockage can be avoided.

Description

Technical Field

[0001] The invention relates to the field of retaining walls, and in particular to a prefabricated drainage retaining wall unit wall and a prefabricated drainage retaining wall. Background Art

[0002] A retaining wall is a structure that supports the roadbed fill or hillside soil and prevents the fill or soil from deforming and becoming unstable. In the construction of retaining walls for water conservancy projects, in order to improve the drainage effect, a number of drainage holes are provided on the wall of the retaining wall, and a drainage channel is provided inside the retaining wall. The drainage channel is connected to the drainage holes, and the bottom end of the drainage channel is connected to the position of the wall of the retaining wall near the bottom. Therefore, water falling on the wall of the retaining wall will pass through the drainage holes and the drainage channel, which is convenient for improving the drainage performance of the retaining wall.

[0003] During the water conservancy construction process, there will be accumulated soil on the wall surface of the retaining wall, so the drainage of the retaining wall is basically carried out by installing a drain outlet; when there is a large amount of precipitation in a short period of time, the drainage diameter of the drain outlet is limited, resulting in a small flow in the drainage channel, and the accumulated water cannot be discharged in time; since the existing retaining walls are generally prefabricated and cast as a whole, it is difficult to clean the inside of the drain outlet during the retaining process of the retaining wall. Therefore, after the retaining wall has been used for a period of time, its drainage volume decreases day by day, resulting in an increase in the soil pressure behind the retaining wall, posing certain safety hazards. Summary of the invention

[0004] The present invention provides a prefabricated drainage retaining wall unit wall and a prefabricated drainage retaining wall to solve the problems in the prior art that the drainage diameter of the retaining wall drainage outlet is limited, resulting in weak drainage capacity and inability to cope with large amounts of precipitation in a short period of time, and the interior of the drainage outlet is difficult to clean, resulting in reduced drainage volume and increased soil pressure.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows: A prefabricated drainage retaining wall unit wall, the bottom of which is driven into the ground, comprising: The first plate wall has a drainage cavity recessed inwardly on its front end, and a positioning enclosure extends forward along the edge of the drainage cavity; a first drainage through hole is provided on the upper surface of the first plate wall, and a second drainage through hole is provided on the lower surface, and the first drainage through hole and the second drainage through hole are connected to the drainage cavity; a third drainage through hole is also provided in the drainage cavity, penetrating the first plate wall; The second plate wall is provided with a mounting hole which is smaller in the front and larger in the rear, a drainage cylinder matching the mounting hole is provided in the mounting hole, a fourth drainage through hole is provided in the middle of the drainage through hole, and the fourth drainage through hole is connected to the third drainage through hole; a positioning groove matching the positioning enclosure is provided on the rear end surface of the second plate wall; A first connecting plate, arranged on the left and right sides of the first plate wall; The second connecting plate is arranged on the left and right sides of the second plate wall and is locked with the first connecting plate by connecting bolts.

[0006] In particular, a group of symmetrical positioning grooves are provided on the outer wall of the drainage cylinder; and two wedge blocks matching the positioning grooves are also provided, and a compression spring is provided on one side of a single wedge block; The rear half of the mounting hole is also provided with a mounting groove for the compression spring to pass through, and the front end of the mounting groove is provided with a rotating groove extending radially outward along the mounting hole; the wedge block is tightly pressed against the positioning groove, and after the compression spring is compressed, the drainage cylinder is pushed so that the compression spring passes through the mounting groove, and then the drainage cylinder is rotated so that the compression spring is clamped in the positioning groove.

[0007] Particularly, an elastic sealing layer is also provided on the outside of the drainage cylinder.

[0008] Particularly, the inner diameter of the fourth drainage through hole is smaller than that of the third drainage through hole, and the rear end inner wall of the fourth drainage through hole continues to extend rearward to form a drainage pipe extending out of the third drainage through hole.

[0009] Particularly, the first drainage through hole is a tapered through hole that is small at the top and large at the bottom, and the second drainage through hole is a tapered through hole that is large at the top and small at the bottom.

[0010] The present invention also provides a prefabricated drainage retaining wall, comprising the above-mentioned unit wall, wherein a plurality of unit walls are arranged side by side.

[0011] In particular, it also includes a cover plate arranged between adjacent drainage retaining walls, and the lower surface of the cover plate is provided with a protrusion matching the gap between the adjacent drainage retaining walls.

[0012] In particular, the unit wall also includes a first triangular prism arranged on the right side of the first panel wall, one face of the first triangular prism is flush with the front end face of the first panel wall, and is pressed against the left side of the first panel wall of the adjacent retaining wall; it also includes a second triangular prism arranged on the left side of the second panel wall, one face of the second triangular prism is flush with the rear end face of the second panel wall, and is pressed against the right side of the second panel wall of the adjacent retaining wall, and the first connecting plate and the second connecting plate of the adjacent drainage retaining wall are located between the first triangular prism and the second triangular prism.

[0013] Furthermore, it also includes a locking pin arranged on the right side of the second board wall, the locking pin is a square block, vertically slidably arranged in the slide groove on the right side of the second board wall, and the locking pin also has an inclined surface that fits with the inclined surface of the second triangular prism; It also includes a locking bolt that passes through the second triangular prism and the locking pin.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention sets the fourth drainage through hole mainly used for draining soil water into a conical structure with a small front and a large rear, thereby reducing the air pressure in the rear half, making it easier for the accumulated water to seep out of the soil, speeding up the drainage, and also helping to prevent the soil from blocking the fourth drainage through hole.

[0015] 2. The present invention also discharges the precipitation on the top of the unit wall through the first drainage hole and the second drainage hole on the top of the unit wall, effectively sharing the drainage pressure of the fourth drainage hole and avoiding the problem of water accumulation caused by a large amount of precipitation in a short period of time.

[0016] 3. The present invention also provides a detachable first plate wall and a second plate wall to facilitate cleaning operations after the fourth drainage through hole is blocked, effectively avoiding the attenuation of the drainage capacity of the retaining wall after a period of use, ensuring the drainage capacity of the retaining wall, and avoiding the risk of overturning of the retaining wall due to excessive pressure caused by water accumulation on one side of the retaining wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the unit wall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the rear end structure of the second plate wall.

[0019] Figure 3 It is a schematic diagram of the drainage tube and wedge structure.

[0020] Figure 4 Schematic diagram of the internal structure of the first panel wall.

[0021] Figure 5 Schematic diagram of the connection relationship between adjacent unit walls.

[0022] The meanings of the symbols in the figure are: The first plate wall 1; the drainage cavity 101; the positioning enclosure 102; the first drainage through hole 103; the second drainage through hole 104; the third drainage through hole 105; the first connecting plate 106; the first triangular prism 107; the connecting bolt 108; Second plate wall—2; fourth drainage through hole—201; positioning groove—202; second connecting plate—203; mounting hole—204; mounting groove—2041; rotation groove—2042; drainage cylinder—205; positioning groove—2051; wedge block—2052; compression spring—2053; Second triangular prism—206; Locking pin—4; Locking bolt—401. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention, so as to have a further understanding of the concept of the present invention, the technical problems solved, the technical features constituting the technical scheme and the technical effects brought about.

[0024] like Figure 1 to Figure 4 As shown, a prefabricated drainage retaining wall unit wall, the bottom of the unit wall is driven into the ground, comprising: The first plate wall 1 has a drainage cavity 101 recessed inwardly on its front end, and a positioning enclosure 102 extends forward from the edge of the drainage cavity 101; a first drainage through hole 103 is provided on the upper surface of the first plate wall 1, and a second drainage through hole 104 is provided on the lower surface, and the first drainage through hole 103 and the second drainage through hole 104 are connected to the drainage cavity 101; a third drainage through hole 105 penetrating the first plate wall 1 is also provided in the drainage cavity 101; The second plate wall 2 is provided with a mounting hole 204 which is smaller in the front and larger in the back. A drainage tube 205 matching the mounting hole 204 is provided in the mounting hole 204. A fourth drainage through hole 201 is provided in the middle of the drainage tube 205. The fourth drainage through hole 201 is connected to the third drainage through hole 105. A positioning groove 202 matching the positioning enclosure 102 is provided on the rear end surface of the second plate wall 2. The first connecting plate 106 is arranged on the left and right sides of the first plate wall 1; The second connecting plate 203 is disposed on the left and right sides of the second plate wall 2 and is fastened to the first connecting plate 106 by connecting bolts 108 .

[0025] In the present invention, the main principles are as follows: The first plate wall 1 and the second plate wall 2 are spliced ​​with each other through the positioning enclosure 102 and the positioning groove 202 to form a unit wall, which serves as the minimum unit structure of the retaining wall. The accumulated water in the soil enters the drainage tube 205 from the fourth drainage hole 201 in the drainage tube 205. Since the drainage tube 205 is integrally matched with the mounting hole 204 which is small in the front and large in the back, the inside of the fourth drainage hole 201 also presents a trend of being small in the front and large in the back, which reduces the air pressure at the rear end, is conducive to drainage, effectively increases the drainage volume per unit time, and is not prone to blockage. After the accumulated water enters the fourth drainage hole 201 from the soil, it is discharged from the third drainage hole 105. The function of the first connecting plate 106 and the second connecting plate 203 is to tighten the first plate wall 1 and the second plate wall 2 to ensure that the two are tightly connected, and also to ensure that the fourth drainage hole 201 can be connected to the third drainage hole 105. After a period of use, the second board wall 2 can be removed from the first board wall 1 by removing the connecting bolts 108 between the first connecting plate 106 and the second connecting plate 203. At the same time, the first board wall 1 still performs the function of a retaining wall, thereby facilitating the removal of the drainage tube 205 from the installation hole 204 for cleaning.

[0026] As a preferred embodiment, the outer wall of the drainage cylinder 205 is provided with a group of symmetrical positioning grooves 2051; it also includes two wedge blocks 2052 matching the positioning grooves 2051, and a compression spring 2053 is provided on one side of the single wedge block 2052; The rear half of the mounting hole 204 is also provided with a mounting groove 2041 for the compression spring 2053 to pass through, and the front end of the mounting groove 2041 is provided with a rotating groove 2042 extending radially outward along the mounting hole 204; the wedge block 2052 is tightly pressed against the positioning groove 2051, and after the compression spring 2053 is compressed, the drainage tube 205 is pushed so that the compression spring 2053 passes through the mounting groove 2041, and then the drainage tube 205 is rotated so that the compression spring 2053 is clamped in the positioning groove 2051.

[0027] In this embodiment, the outer wall of the drain cylinder 205 is provided with two symmetrical positioning grooves 2051, and the positioning grooves 2051 are used to install the wedge block 2052. The wedge block 2052 is provided with a compression spring 2053. When the drain cylinder 205 is assembled, a force is applied to the compression spring 2053 to make the compression spring 2053 contract, so that it can pass through the installation groove 2041, until the compression spring 2053 on the wedge block 2052 is pressed into the rotation groove 2042 at the front end of the installation hole 204. At this time, by rotating the drain cylinder 205, the wedge block 2052 and the compression spring 2053 rotate together, and the compression spring 2053 rotates to a position without the installation groove 2041. At this time, the compression spring 2053 is pressed against the side wall of the installation groove 2041 by the rebound of the compression spring 2053, so that the installation and fixation of the drain cylinder 205 is achieved.

[0028] As a preferred embodiment, an elastic sealing layer is further provided on the outside of the drainage cylinder 205 .

[0029] In this embodiment, the elastic sealing layer is provided to ensure that water in the soil layer will not penetrate into the gap between the drain tube 205 and the mounting hole 204, and to ensure that the drain tube 205 and the mounting hole 204, as well as the drain tube 205 and the front end surface of the drain chamber 101 can be stably pressed against each other, thereby preventing the drain tube 205 from rotating.

[0030] As a preferred embodiment, the inner diameter of the fourth drainage through hole 201 is smaller than that of the third drainage through hole 105 , and the rear end inner wall of the fourth drainage through hole 201 continues to extend rearward to form a drainage pipe extending out of the third drainage through hole 105 .

[0031] In this embodiment, the rear end inner wall of the fourth drainage hole 201 extends to form a drainage pipe extending out of the third drainage hole 105, so that the accumulated water inside the soil can be directly discharged from the fourth drainage hole 201 into the device without interacting with the interior of the drainage cavity 101, thereby preventing tiny soil particles inside the soil from entering the drainage cavity 101 and causing blockage.

[0032] As a preferred embodiment, the first drainage through hole 103 is a tapered through hole that is small at the top and large at the bottom, and the second drainage through hole 104 is a tapered through hole that is large at the top and small at the bottom.

[0033] In this embodiment, by setting the first drainage through hole 103 to be a tapered hole with a small top and a large bottom, the resistance of the top water entering the drainage cavity 101 can be effectively increased, and the drainage of the top water can be facilitated; setting the second drainage through hole 104 to be a tapered hole with a large top and a small bottom can effectively collect and store a small amount of soil, sand, and debris entering the drainage cavity 101, and avoid accumulation in the drainage cavity 101. In order to prevent soil particles and debris from clogging the second drainage through hole 104, a horizontally pulled filter can also be set inside the second drainage through hole 104.

[0034] The present invention also provides a prefabricated drainage retaining wall, comprising the above-mentioned unit wall, wherein a plurality of unit walls are arranged side by side.

[0035] This embodiment provides a prefabricated drainage retaining wall. By arranging a plurality of unit walls side by side, the present invention can determine the overall size according to the actual situation of the construction site to adapt to different soil widths in the construction area.

[0036] As a preferred embodiment, it further comprises a cover plate arranged between adjacent drainage unit walls, wherein the lower surface of the cover plate is provided with a protrusion matching the gap between the adjacent drainage unit walls.

[0037] In this embodiment, a cover plate is provided, the function of which is to block the gap between adjacent unit walls and connect multiple unit walls to jointly cope with the soil pressure perpendicular to the wall surface of the unit wall to prevent the unit wall from tilting.

[0038] As a preferred embodiment, the unit wall also includes a first triangular prism 107 arranged on the right side of the first panel wall 1, one face of the first triangular prism 107 is flush with the front end face of the first panel wall 1, and is pressed against the left side of the first panel wall 1 of the adjacent unit wall; it also includes a second triangular prism 206 arranged on the left side of the second panel wall 2, one face of the second triangular prism 206 is flush with the rear end face of the second panel wall 2, and is pressed against the right side of the second panel wall 2 of the adjacent unit wall, and the first connecting plate 106 and the second connecting plate 203 of the adjacent unit wall are located between the first triangular prism 107 and the second triangular prism 206.

[0039] In this embodiment, if Figure 5As shown, a structure for connecting unit walls is provided. Specifically, the first triangular prism 107 and the second triangular prism 206 are respectively located at the front end of the right side of the first plate wall 1 and the rear end of the left side of the second plate wall 2. The first triangular prism 107 and the second triangular prism 206 are mainly used to fill the gap between adjacent unit walls. Specifically, the first triangular prism 107 has a plane flush with the front end surface of the first plate wall 1, so that there is no gap in the front end surfaces of multiple unit walls to avoid soil penetration. The second triangular prism 206 is the same length as the first triangular prism 107 and mainly plays a supporting role to avoid the deviation of the drainage retaining wall caused by the installation angle deviation of the unit wall. In addition, the first triangular prism 107 and the second triangular prism 206 can also protect the first connecting plate 106 and the second connecting plate 203 located therebetween to avoid damage to the first connecting plate 106 and the second connecting plate 203.

[0040] As a further embodiment, it further comprises a locking pin 4 arranged on the right side of the second board wall 2, wherein the locking pin 4 is a square block and is vertically slidably arranged in a slide groove on the right side of the second board wall 2, and the locking pin 4 also has an inclined surface that fits with the inclined surface of the second triangular prism 206; It also includes a locking bolt 401 that passes through the second triangular prism 206 and the locking pin 4 .

[0041] In this embodiment, a structure for locking adjacent unit walls is provided. Specifically, the locking pin 4 is inserted into the slide groove on the right side of the second plate wall 2 in a vertical plug-in manner. Since the second plate wall 2 is provided with a second triangular prism 206 on the left side, there is a gap between an inclined surface of the second triangular prism 206 of the right unit wall and the right side surface of the left second plate wall 2. By setting one surface of the locking pin 4 as an inclined surface that fits the inclined surface of the second triangular prism 206, the close contact between the locking pin 4 and the second triangular prism 206 is effectively ensured. At this time, the locking bolt 401 that penetrates the second triangular prism 206 and the locking pin 4 is used to achieve the effect of completely connecting the adjacent unit walls into one. It should be noted that in order to facilitate the removal of the connecting bolt 108 or the locking bolt 401, the position of the connecting bolt 108 and the locking bolt 401 needs to be slightly set close to the upper half of the unit wall, so that the threaded sleeve can be inserted from the gap to install and remove the connecting bolt 108 and the locking bolt 401.

[0042] The terms “connection” and “fixation” mentioned in the description of the present invention may refer to fixed connection, processing and forming, welding or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0043] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inside", "outside", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A prefabricated drainage retaining wall unit wall, the bottom of which is driven into the ground, characterized in that: include: The first plate wall (1) has a drainage cavity (101) recessed inwardly at the front end thereof, and a positioning enclosure (102) extending forwardly from the edge of the drainage cavity (101); a first drainage through hole (103) is provided on the upper surface of the first plate wall (1), and a second drainage through hole (104) is provided on the lower surface thereof, the first drainage through hole (103) and the second drainage through hole (104) being in communication with the drainage cavity (101); a third drainage through hole (105) penetrating the first plate wall (1) is also provided in the drainage cavity (101); The second plate wall (2) is provided with a mounting hole (204) which is smaller in the front and larger in the rear. A drainage tube (205) matching the mounting hole (204) is provided in the mounting hole (204). A fourth drainage through hole (201) is provided in the middle of the drainage tube (205). The fourth drainage through hole (201) is connected to the third drainage through hole (105). A positioning groove (202) matching the positioning enclosure (102) is provided on the rear end surface of the second plate wall (2). A first connecting plate (106) is arranged on the left and right sides of the first plate wall (1); The second connecting plate (203) is arranged on the left and right sides of the second plate wall (2) and is locked with the first connecting plate (106) via connecting bolts (108).

2. A prefabricated drainage retaining wall unit wall as claimed in claim 1, characterized in that: The outer wall of the drainage cylinder (205) is provided with a group of symmetrical positioning grooves (2051); it also includes two wedge blocks (2052) matched with the positioning grooves (2051); a compression spring (2053) is provided on one side of each wedge block (2052); The rear half of the mounting hole (204) is also provided with a mounting groove (2041) for the compression spring (2053) to pass through, and the front end of the mounting groove (2041) is provided with a rotation groove (2042) extending radially outward along the mounting hole (204); the wedge block (2052) is tightly pressed against the positioning groove (2051), and after the compression spring (2053) is compressed, the drainage cylinder (205) is pushed so that the compression spring (2053) passes through the mounting groove (2041), and then the drainage cylinder (205) is rotated so that the compression spring (2053) is clamped in the positioning groove (2051).

3. The prefabricated drainage retaining wall unit wall according to claim 1, characterized in that: An elastic sealing layer is also provided on the outside of the drainage cylinder (205).

4. The prefabricated drainage retaining wall unit wall according to claim 1, characterized in that: The inner diameter of the fourth drainage through hole (201) is smaller than that of the third drainage through hole (105), and the rear end inner wall of the fourth drainage through hole (201) continues to extend rearwards to form a drainage pipe extending out of the third drainage through hole (105).

5. The prefabricated drainage retaining wall unit wall according to claim 1, characterized in that: The first drainage through hole (103) is a tapered through hole that is smaller at the top and larger at the bottom, and the second drainage through hole (104) is a tapered through hole that is larger at the top and smaller at the bottom.

6. A prefabricated drainage retaining wall, characterized in that: It comprises a unit wall as described in any one of claims 1 to 5, wherein a plurality of unit walls are arranged side by side.

7. A prefabricated drainage retaining wall as claimed in claim 6, characterized in that: It also includes a cover plate arranged between adjacent drainage unit walls, and a lower surface of the cover plate is provided with a protrusion matching the gap between the adjacent drainage unit walls.

8. The prefabricated drainage retaining wall according to claim 6, characterized in that: The unit wall also includes a first triangular prism (107) arranged on the right side of the first plate wall (1), one surface of the first triangular prism (107) being flush with the front end surface of the first plate wall (1) and pressed against the left side of the first plate wall (1) of the adjacent unit wall; and also includes a second triangular prism (206) arranged on the left side of the second plate wall (2), one surface of the second triangular prism (206) being flush with the rear end surface of the second plate wall (2) and pressed against the right side of the second plate wall (2) of the adjacent unit wall, and the first connecting plate (106) and the second connecting plate (203) of the adjacent unit wall are located between the first triangular prism (107) and the second triangular prism (206).

9. A prefabricated drainage retaining wall as claimed in claim 8, characterized in that: It also includes a locking pin (4) arranged on the right side of the second board wall (2), the locking pin (4) being a square block and vertically slidably arranged in a slide groove on the right side of the second board wall (2), and the locking pin (4) also has an inclined surface that fits the inclined surface of the second triangular prism (206); It also includes a locking bolt (401) that passes through the second triangular prism (206) and the locking pin (4).

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