CN216339667U - Novel retaining wall drains, drainage structures - Google Patents

Abstract

The utility model discloses a novel retaining wall drainage structure, which aims to solve the problem that the water pressure of a rock-soil slope is increased due to unsmooth drainage caused by the fact that the traditional retaining wall drainage structure is easy to cause local blockage, and comprises the following steps: the retaining wall comprises a retaining wall body, a permeable concrete layer and a permeable concrete layer, wherein the permeable concrete layer is arranged on the inner vertical surface of the retaining wall body, the height of the permeable concrete layer is smaller than that of the retaining wall body in the direction from the lower end to the upper end of the retaining wall body, the permeable concrete layer is spaced from the upper end of the retaining wall body, and the permeable concrete layer is used for allowing water to pass through a rock-soil slope; and the water drainage channel is arranged at the lower end of the retaining wall body, one end of the water drainage channel is connected with the bottom of the permeable concrete layer, and the other end of the water drainage channel is communicated with a drainage ditch. The utility model has the advantages of stable water permeable effect of the water permeable structure, difficult blockage, simple construction, no water pollution on the outer vertical surface of the retaining wall and the like.

Description

Novel retaining wall drains, drainage structures

Technical Field

The utility model relates to the technical field of rock slope protection and treatment engineering, in particular to a novel retaining wall drainage structure.

Background

The condition that all there are the adoption retaining wall to strut rock soil slope in fields such as water conservancy, municipal administration, building, let out, drainage structures as its indispensable partly, play important role wherein.

The traditional drainage structure is mostly provided with a reverse filter bag and a reverse filter layer behind a wall. The reverse filter bag has smaller size and complex structure, so that the water permeability effect needs to be improved and the manufacture is more complex; the inverted filter layer is made of loose permeable materials, is difficult to form and guarantee construction quality, and then is difficult to guarantee the permeable effectiveness, and the construction difficulty is large.

The traditional drainage structure is mainly arranged in a point shape or a linear shape, so that the possibility of local blockage exists, the drainage of local areas is not smooth, and the drainage effect is difficult to ensure; and the outlet sets up on the retaining wall above the earth's surface, and water flows on the outer facade of retaining wall for a long time can cause certain pollution to the outer facade of retaining wall, leaves water stain and water mark on the outer facade of retaining wall, influences the aesthetic property of retaining wall. For city construction projects and beautification projects with extremely high landscape requirements, the appearance of the design will undoubtedly influence the overall effect of the design.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of how to ensure the water permeability effect of the water drainage structure; how to reduce the construction difficulty of the reverse filtering structure; how to prevent that retaining wall facade is polluted by water, produce water mark, water stain, aim at provides a novel retaining wall and lets out, drainage structures.

The utility model is realized by the following technical scheme:

a novel retaining wall drainage structure comprises:

the retaining wall comprises a retaining wall body, a permeable concrete layer and a permeable concrete layer, wherein the permeable concrete layer is arranged on the inner vertical surface of the retaining wall body, the height of the permeable concrete layer is smaller than that of the retaining wall body in the direction from the lower end to the upper end of the retaining wall body, the permeable concrete layer is spaced from the upper end of the retaining wall body, and the permeable concrete layer is used for allowing water to pass through a rock-soil slope;

and the water drainage channel is arranged at the lower end of the retaining wall body, one end of the water drainage channel is connected with the bottom of the permeable concrete layer, and the other end of the water drainage channel is communicated with a drainage ditch.

The utility model improves the traditional reverse filtering structure, and adopts the permeable concrete layer as the permeable structure for water seepage of the rock-soil slope. The pervious concrete is pervious concrete, and is arranged on the whole rear surface of the wall, so that unsmooth drainage caused by local section blockage is avoided, the drainage effect is ensured, and the condition that the slope water pressure is increased due to blockage caused by seepage of the rock soil slope is prevented. When the permeable concrete layer is constructed, only one-side formwork erecting is needed to be carried out on the outer side of the rock-soil slope, then permeable concrete is poured, or a permeable concrete precast block is directly installed, so that the permeable concrete layer can be formed, the construction is relatively simple, and the construction method is flexible; the permeable concrete layer is arranged in a surface mode, so that multiple paths are formed for the rock-soil side slope seepage water to converge at the bottom of the permeable concrete layer behind the wall, and the single paths are arranged in a non-linear and point mode, and at the moment, the seepage water can be discharged only by arranging the water drainage channel to be connected with the bottom of the permeable concrete layer. And the export of sluicing passageway is direct to be linked together with the escape canal, and the infiltration no longer flows along the outlet opening of retaining wall body, prevents the infiltration to the pollution of retaining wall facade outward.

The drainage ditch here should be interpreted as: the drainage channel can be an excavated ditch, a drainage pipeline and a channel with a drainage function formed by other structures.

Preferably, the anti-seepage concrete layer comprises anti-seepage soil materials, and the anti-seepage soil materials are connected with one end of the water-permeable concrete layer to prevent the water in the water-permeable concrete layer from seeping.

Preferably, the porosity of the permeable concrete layer is 20%.

Preferably, the drainage channel is a PVC pipe embedded in the retaining wall body.

Preferably, the gradient of the drainage channel is 5%.

Preferably, the distance between the permeable concrete layer and the upper end of the retaining wall body is not less than 50 cm.

Preferably, the drainage ditch is cast-in-place concrete, and the top surface is level with the road surface.

Preferably, the upper part of the drainage ditch is paved with a cover plate.

Preferably, the drainage ditch is in communication with a municipal rainwater system.

Preferably, the inner side of the retaining wall body is provided with a water intercepting ditch, and the ditch top of the water intercepting ditch is flush with the wall top of the retaining wall body.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. according to the novel retaining wall drainage structure provided by the utility model, the permeable concrete layer is used as a permeable structure for water seepage of the rock-soil side slope and is arranged on the whole back of the wall, so that unsmooth drainage caused by local section blockage is avoided, the drainage effect is ensured, and the water pressure of the rock-soil side slope is prevented from being increased due to blockage caused by water seepage of the rock-soil side slope.

2. According to the novel retaining wall drainage structure provided by the utility model, when the permeable concrete layer is constructed, only one-side formwork support is needed to be carried out on the outer side of the rock-soil slope, then the permeable concrete is poured, or the permeable concrete precast block is directly installed, so that the permeable concrete layer can be formed, the construction is relatively simple, and the construction method is flexible.

3. According to the novel retaining wall drainage structure provided by the utility model, the seepage water of the rock-soil slope is drained through the drainage channel buried under the ground, so that the pollution of the seepage water flowing out along the drainage hole of the retaining wall body to the outer vertical surface of the retaining wall is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic cross-sectional view of a specific application environment of a novel retaining wall drainage structure according to an embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

1-retaining wall body, 2-permeable concrete layer, 3-drainage channel, 4-drainage ditch, 5-cover plate, 6-impermeable soil material, 7-rock-soil slope, 8-road, 9-vehicle, 10-pedestrian, 11-arbor, 12-flower and plant, 13-decorative outer wall and 14-intercepting ditch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.

Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the utility model. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present invention.

Examples

The traditional retaining wall structure of permeating water all generally adopts the inverted filter, the inverted filter package also can regard as one kind of inverted filter, the inverted filter indicates that the particle diameter of laying in big-mouth well or infiltration canal etc. inflow department is along rivers direction by thin to thick gradation gravel layer, when the inverted filter is used to the retaining wall, it needs to set up between ground slope 7 and retaining wall, the lamellar structure of inverted filter sets up to vertical, in the actual work progress, the shape of inverted filter keeps the degree of difficulty great, it is inconvenient to be under construction, the construction quality that the construction degree of difficulty increases probably influences the inverted filter, cause local jam easily, influence the effect of sluicing, increase ground slope water pressure, and the infiltration flows along the outer facade of retaining wall, there is the problem that the outer facade of retaining wall is polluted by water.

Therefore, in order to ensure the stability of the water permeable effect of the water permeable structure and avoid the outer vertical surface of the retaining wall from being polluted by water, the utility model provides a novel retaining wall drainage structure, as shown in fig. 1, in this embodiment, the retaining wall drainage structure comprises: the permeable concrete layer 2 is arranged on the inner vertical surface of the retaining wall body 1, in the upward direction of the retaining wall body 1 from bottom to top, the height of the permeable concrete layer 2 is smaller than that of the retaining wall body 1, the permeable concrete layer 2 is spaced from the upper end of the retaining wall body 1, and the permeable concrete layer 2 is used for allowing water to permeate through the rock-soil slope 7; and a water drainage channel 3 arranged at the lower end of the retaining wall body 1, wherein one end of the water drainage channel 3 is connected with the bottom of the permeable concrete layer 2, and the other end is communicated with a drainage ditch 4.

Specifically, the upper end of the retaining wall body 1 is flush with the crest line of the slope top intercepting drain 14, and of course, the lower end of the retaining wall body 1 is required to be lower than the road 8 by a certain distance to ensure the stability of the retaining wall body 1. The lower end of the retaining wall body 1 is embedded with the drainage channel 3 for discharging the water seeping from the rock-soil side slope 7, and the horizontal distance is 1.5 m. According to common knowledge, the drainage channel 3 is inclined with respect to the horizontal. The retaining wall body 1 is provided with a permeable concrete layer 2 on the inner vertical surface, the thickness of the permeable concrete layer 2 is at least 10cm, and the upper end of the permeable concrete layer 2 is lower than the top surface of the retaining wall body 1 by 50cm so as to prevent seepage water from overflowing and flowing out of the top surface of the retaining wall body 1. Except that the upper anti-overflow section and the lower anti-infiltration section are not arranged on the permeable concrete layer 2, other sections are arranged, namely, the planar connectivity of the permeable concrete layer 2 is ensured, and the water in each soil layer of the whole rock-soil slope 7 can enter the permeable concrete layer 2. The bottom of the permeable concrete layer 2 is connected with the drainage channel 3 so that the seepage water is discharged through the drainage channel 3, because the drainage channel 3 is arranged on the retaining wall body 1 below the road surface 8, the drainage channel 3 can be directly communicated with the drainage ditch 4.

The soil slope 7 infiltration of infiltration enters into concrete layer 2 that permeates water, assembles in the bottom along concrete layer 2 that permeates water, gets into escape canal 4 through sluicing passageway 3, realizes the discharge of soil slope 7 infiltration.

The utility model improves the traditional reverse filtration structure, adopts the permeable concrete layer as the permeable structure of the water seepage of the rock-soil side slope 7, and the permeable concrete, namely the permeable concrete, is arranged on the whole back of the wall, so that the unsmooth water drainage caused by the blockage of a local section can be avoided, the water drainage effect is ensured, and the water pressure of the rock-soil side slope 7 is prevented from being increased due to the blockage of the water seepage of the rock-soil side slope 7; in addition, during construction of the permeable concrete layer 2, only one-side formwork erecting is needed to be carried out on the outer side of the rock-soil slope 7, then permeable concrete is poured, or a permeable concrete precast block is directly installed, so that the construction is relatively simple and the construction method is flexible; the setting of concrete layer 2 that permeates water makes 7 infiltration of ground slope collect in the bottom of concrete layer 2 that permeates water, only needs to set up that the bottom of sluicing passageway 3 and concrete layer 2 that permeates water is connected can discharge the infiltration this moment, and the infiltration needn't discharge along 1 outer facade of retaining wall body again, sluicing passageway 3 and escape canal 4 intercommunication have avoided the infiltration to discharge the pollution of the outer facade of retaining wall along retaining wall body outlet.

In order to satisfy the requirement that the permeability and the fine particles of the rock-soil slope 7 are not taken away, in one example, the porosity of the water-permeable concrete layer 2 is set to 20%.

In one example, an impermeable soil material 6 is included, the impermeable soil material 6 interfacing with the bottom of the water permeable concrete layer 2 to prevent underwater infiltration in the water permeable concrete layer 2.

As mentioned above, the drain channel 3 is located on the retaining wall body 1 below the road surface of the road 8, one end of the drain channel 3 communicating with the drain ditch 4 is higher than the bottom of the retaining wall body 1, the drain channel 3 is in an inclined state, one end of the drain channel 3 connected with the permeable concrete layer 2 is inevitably higher than the bottom of the retaining wall body 1, the impermeable soil material 6 is filled in the range above the bottom of the retaining wall body 1 below the bottom of the permeable concrete layer 2.

In one example, the drainage channel 3 is a PVC pipe embedded in the retaining wall body 1.

In order to ensure good drainage performance, the pipe diameter of the PVC is set to be 10cm, and a drainage channel 3 is arranged every 1.5 m.

In one example, the slope of the drainage channel 3 is 5%.

As mentioned above, the drainage channel 3 is communicated with the drainage ditch 4, if the gradient of the drainage channel 3 is large, the depth of the drainage ditch 4 needs to be set deeper, the construction cost is large, and the drainage ditch 4 affects the personal safety of the pedestrian 10, if the gradient of the drainage channel 3 is set too small, the water seepage and detention are likely to be caused, so the gradient of the drainage channel 3 is set to 5%.

In one example, the distance between the permeable concrete layer 2 and the upper end of the retaining wall body 1 is not less than 50 cm.

When the water seepage amount of the rock-soil slope 7 is too large, the water seepage liquid level in the water permeable concrete layer 2 can possibly reach the top of the water permeable concrete layer 2, in order to prevent water seepage from flowing out of the top surface of the retaining wall body 1, the distance between the upper end of the water permeable concrete layer 2 and the upper end of the retaining wall body 1 is set to be at least 50cm, namely the distance between the upper end of the water permeable concrete layer 2 and the top surface of the rock-soil slope is at least 50 cm.

In one example, the inside of the retaining wall body 1 is provided with a cut-off trench 14, and the top of the cut-off trench 14 is flush with the top of the retaining wall body 1.

The arrangement of the intercepting ditch 14 can prevent the running water on the slope of the rock-soil side slope 7 from flowing down along the outer vertical surface of the retaining wall to pollute the outer vertical surface of the retaining wall.

The apron 5 is installed at the top in escape canal 4, can realize the drainage function, and prevents that leaf or other rubbish from piling up and causing the jam, increases the later stage management degree of difficulty.

Further, it is preferable that the drainage channel 3 penetrate through the side wall of the drainage ditch 4 near the retaining wall 1 in order to ensure the proper function of the drainage channel 3.

The water retaining in the drainage ditch 4 is further optimized to reduce the water retaining in the drainage ditch 4, and the drainage ditch 4 is ensured to have a certain slope, and the thickness of the bottom of the drainage ditch 4 is controlled by the slope of the drainage ditch 4.

In one example, to facilitate maintenance of the drain 4, a removable cover plate 5 is mounted on top of the drain 4.

In one example, the drain 4 is in communication with a municipal rainwater system.

And the underground drainage system can be communicated with a municipal rainwater system, so that water can be drained from the drainage ditch 4 in time. If no municipal rainwater interface exists, other row of mouths should be connected.

In one example, in order to meet the requirement of urban construction engineering for beautification, the outer wall surface of the retaining wall body 1 is provided with a decorative outer wall 13.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. The utility model provides a novel retaining wall lets out, drainage structures which characterized in that includes:

the retaining wall comprises a retaining wall body (1), a permeable concrete layer (2) and a permeable concrete layer, wherein the permeable concrete layer (2) is arranged on the inner vertical surface of the retaining wall body (1), the height of the permeable concrete layer (2) is smaller than that of the retaining wall body (1) in the direction from the lower end to the upper end of the retaining wall body (1), a distance is reserved between the permeable concrete layer (2) and the upper end of the retaining wall body (1), and the permeable concrete layer (2) is used for water seepage of a rock-soil slope (7);

the drainage channel (3) is arranged at the lower end of the retaining wall body (1), one end of the drainage channel (3) is connected with the bottom of the permeable concrete layer (2), and the other end of the drainage channel is communicated with a drainage ditch (4).

2. A novel retaining wall drainage structure according to claim 1, characterized in that the porosity of the permeable concrete layer (2) is 20%.

3. A novel retaining wall drainage structure according to claim 1, characterized by comprising impermeable earth material (6), wherein the impermeable earth material (6) is connected with one end of the permeable concrete layer (2) to prevent infiltration of water in the permeable concrete layer (2).

4. A novel retaining wall drainage structure according to claim 1, characterized in that the drainage channel (3) is a PVC pipe pre-embedded in the retaining wall body (1).

5. A new retaining wall drainage structure according to claim 1, characterized in that the slope of the drainage channel (3) is 5%.

6. A novel retaining wall drainage structure according to claim 1, characterized in that the distance between the permeable concrete layer (2) and the upper end of the retaining wall body (1) is not less than 50 cm.

7. A novel retaining wall drainage structure according to claim 1, characterized in that the drainage ditch (4) is cast-in-place concrete, and the top surface is flush with the ground.

8. A new type of retaining wall drainage structure of claim 1, characterized in that the upper part of the drainage ditch (4) is laid with a cover plate (5).

9. A novel retaining wall drainage structure according to claim 1, characterized in that the drainage ditch (4) is in communication with a municipal rainwater system.

10. A new retaining wall drainage structure according to claim 1, characterized in that the inside of the retaining wall body (1) is provided with intercepting ditches (14), and the tops of the intercepting ditches (14) are flush with the top of the retaining wall body (1).

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