Retaining wall inverted filter water drainage pipe convenient to maintain

Abstract

The utility model provides a retaining wall inverted filter water drain pipe convenient to maintain, which comprises a water drain pipe body and a sleeve, an inverted filter component used for preventing soil back of a retaining wall from leaking outwards is arranged in the water drain pipe body, the sleeve is sleeved outside the water drain pipe body, and the water drain pipe body can rotate in the sleeve; and the separation net is installed at the water inlet end of the water drainage pipe body, and a plurality of cutting pieces used for cutting a soil body are installed on the separation net. The water drain pipe body can rotate in the sleeve, the water inlet end of the water drain pipe body is provided with the separation net with the cutting piece, and when the water drain pipe body is blocked and cannot effectively drain water, the cutting piece installed at the water inlet end can be driven to cut a soil body blocked at the water inlet end only by rotating the water drain pipe body, so that the water drain gap of the soil body is increased; normal water drainage of the water drainage pipe body is facilitated, then water and soil pressure borne by the back of the retaining wall in the using process is reduced, the durability of the retaining wall is guaranteed, and the service life of the retaining wall is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of engineering construction, in particular to a retaining wall anti-filtration drainage pipe which is easy to maintain. Background Art

[0002] Setting up filter components and drainage pipes on retaining walls is an important means to ensure the service life of retaining walls. During the construction of retaining walls, traditional filter bags are located at the elevation of the drainage pipe inlet after backfilling. Geotextiles are used to wrap gravel and crushed stones to form a water filtration system, which is placed at the drainage pipe inlet. However, due to the influence of backfilling and compaction, the filter bags are easily disturbed and damaged during the backfilling process, resulting in the drainage pipe being blocked and unable to effectively drain water. In addition, it is difficult to clear the drainage pipe inlet through effective measures under the condition of blocking, resulting in greater water and soil pressure on the back of the retaining wall, increasing the probability of damage to the retaining wall, reducing its service life, and even causing the collapse of the retaining wall in severe cases. In the later maintenance of the retaining wall, it is difficult to take effective measures to clear the blocked drainage holes, which affects the drainage performance of the back of the retaining wall, reduces the slope stability of the back of the retaining wall, and seriously affects the service life of the retaining wall. Utility Model Content

[0003] One of the purposes of the utility model is to provide a retaining wall anti-filtration drainage pipe which is easy to maintain, so as to solve the problem in the prior art that the anti-filtration drainage pipe is difficult to clear after being blocked.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A retaining wall backfiltration drain pipe which is easy to maintain, comprising: a drain pipe body and a sleeve, wherein the interior of the drain pipe body is provided with a backfiltration component for preventing the back soil of the retaining wall from leaking outward, the sleeve is sleeved on the outside of the drain pipe body, and the drain pipe body can rotate in the sleeve; a partition net, the partition net is installed at the water inlet end of the drain pipe body, and a plurality of cutting pieces for cutting soil are installed on the partition net.

[0006] In the utility model, the drain pipe body can rotate in the sleeve, and a partition with a cutting piece is installed at the water inlet end of the drain pipe body. When the drain pipe body is blocked and cannot effectively drain water, the cutting piece installed at the water inlet end can be driven to cut the soil blocking the water inlet end by rotating the drain pipe body, so as to increase the drainage gap of the soil, which is helpful for the normal drainage of the drain pipe body, and further reduces the water and soil pressure on the back of the retaining wall during use, thereby ensuring the durability of the retaining wall and increasing the service life of the retaining wall.

[0007] Furthermore, each cutting member includes a cutting body and a cutting portion, wherein the cutting portion is arranged at the end of the cutting body, and the cutting body is installed on the drain pipe body through the partition net, so that the cutting portion can cut the soil when the drain pipe body rotates.

[0008] Through the above technical means, the drain pipe body in the utility model can rotate in the sleeve, and the cutting body is installed on the drain pipe body through a partition net, so that the cutting part can cut the soil behind the retaining wall when the drain pipe body rotates, so as to increase the water-passing gap of the backfill behind the retaining wall.

[0009] Furthermore, the cutting parts are provided at both ends of the cutting body.

[0010] Through the above technical means, multiple cutting parts are provided to more fully cut the soil, so that more water-passing gaps are formed when the drain pipe body is rotated.

[0011] Furthermore, each of the cutting members includes a connecting hole penetrating through the cutting body, and each of the cutting members is mounted on the partition net through the connecting hole.

[0012] Through the above technical means, the stability and accuracy of the cutting piece installed on the partition net are guaranteed, ensuring that the cutting piece will not fall off when cutting the soil.

[0013] Furthermore, the partition net includes a plurality of steel wires arranged in a mesh shape, and at least two of the steel wires can pass through the connecting holes to fix each of the cutting members on the partition net.

[0014] Through the above technical means, the mesh-shaped steel wires increase the strength of the partition net, and each of the steel wires cooperates with each of the connecting holes to ensure that the cutting piece will not fall off the partition net when cutting the soil.

[0015] Furthermore, the anti-filtration component includes geotextile, gravel, crushed stone and a filter material support plate which are arranged in sequence from the water inlet end to the inner cavity of the drain pipe body.

[0016] Through the above technical means, geotextiles can effectively intercept soil particles, fine yarn, small stones, etc., and prevent these small particles from entering the inner cavity with the water flow, so as to maintain the stability of soil and water engineering. The particle size of gravel and crushed stone gradually increases, which can further filter impurities in the water flow, especially large suspended matter and particulate matter, and at the same time provide a channel for the water flow to ensure that the water flow can be discharged smoothly. The filter material support plate is located in the innermost layer, providing support for the entire filter assembly to ensure the stability and safety of the structure.

[0017] Furthermore, the filter material support plate comprises a support plate body and a plurality of filter holes, and the filter holes are evenly distributed on the support plate body.

[0018] Through the above technical means, the filter material support plate supports the sand and gravel and the crushed stone, ensuring that the infiltrated water flow behind the retaining wall can smoothly pass through the filter holes while the sand and gravel and the crushed stone are not easily lost.

[0019] Furthermore, a first limiting member is disposed on the outer wall of the drain pipe body, and a second limiting member is disposed on the inner wall of the sleeve, and the first limiting member is matched with the second limiting member so that the drain pipe body can rotate in the sleeve.

[0020] Through the above technical means, the first limiting member and the second limiting member cooperate with each other to prevent the drain pipe body from falling out of the sleeve during the rotation of the sleeve, thereby improving the rotation stability.

[0021] Furthermore, the first limiting member includes a plurality of annular grooves, and the second limiting member includes a plurality of limiting steps, and each of the limiting steps can be snapped into each of the annular grooves to install the drain pipe body in the sleeve.

[0022] Through the above technical means, the cooperation between the annular groove and the limiting step ensures that the drain pipe body can rotate in the sleeve while preventing the drain pipe body from falling off from the sleeve.

[0023] Furthermore, the length of the drain pipe body is greater than the length of the sleeve, and the water outlet end of the drain pipe body extends out of one end of the sleeve, so that torque is applied to the water outlet end to enable the drain pipe body to rotate in the sleeve.

[0024] Through the above technical means, construction workers can easily apply torque directly to the outlet end to rotate the drain pipe body relative to the sleeve, thereby driving the cutting member to cut the soil behind the retaining wall.

[0025] The beneficial effects of the utility model are:

[0026] In the utility model, the drain pipe body can rotate in the sleeve, and a partition net of a cutting piece is installed at the water inlet end of the drain pipe body. When the drain pipe is blocked and cannot effectively drain water, the cutting piece installed at the water inlet end can be driven to cut the soil blocking the water inlet end by rotating the drain pipe body, so as to increase the drainage gap of the soil, which is helpful for the normal drainage of the drain pipe body, and further reduces the water and soil pressure on the back of the retaining wall during use, thereby ensuring the durability of the retaining wall and increasing the service life of the retaining wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic cross-sectional view of the overall structure of the utility model.

[0029] Figure 2 It is a schematic diagram of the cross-sectional structure of a drain pipe body of the utility model.

[0030] Figure 3 It is a schematic diagram of the cross-sectional structure of the casing of the utility model.

[0031] Figure 4 It is a top view structural schematic diagram of the utility model.

[0032] Figure 5 It is a front view structural schematic diagram of the cutting piece of the utility model.

[0033] Figure 6 It is a schematic diagram of the top view structure of the cutting piece of the utility model.

[0034] Figure 7 It is a structural schematic diagram of a filter material support plate of the utility model.

[0035] in,

[0036] 100, drain pipe body; 110, first stopper; 120, outlet end; 130, inlet end; 200, filter assembly; 210, geotextile; 220, gravel; 230, crushed stone; 240, filter material support plate; 241, support plate body; 242, filter hole; 300, casing; 310, second stopper; 400, partition net; 410, steel wire; 500, cutting piece; 510, cutting body; 520, cutting part; 511, connecting hole. DETAILED DESCRIPTION

[0037] The following will refer to the accompanying drawings and preferred embodiments to illustrate the implementation of the present invention. The accompanying drawings are only used for exemplary description and cannot be understood as limiting the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0038] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0039] This embodiment provides Figures 1 to 7 The embodiment of the present invention is a retaining wall anti-filtration drain pipe which is easy to maintain, comprising: a drain pipe body 100 and a sleeve 300, wherein the interior of the drain pipe body 100 is provided with an anti-filtration assembly 200 for preventing the back soil of the retaining wall from leaking outward, the sleeve 300 is sleeved on the exterior of the drain pipe body 100, and the drain pipe body 100 can rotate in the sleeve 300; a partition net 400, which is installed at the water inlet end 130 of the drain pipe body 100, and a plurality of cutting pieces 500 for cutting soil are installed on the partition net 400.

[0040] In this embodiment, during the process of layered masonry of the retaining wall, when the pouring height of the concrete reaches the designed installation height of the drain pipe, the drain pipe body 100 with the sleeve 300 in this embodiment is placed on the designed position, and the sleeve 300 is fixed with cement mortar, and the drain pipe body 100 can be installed on the retaining wall. After backfilling the back of the retaining wall, if the drainage is blocked, the construction personnel rotate the drain pipe body 100 so that the cutting piece 500 located at the water inlet end 130 cuts the blocked soil to increase the drainage gap, so that the water behind the retaining wall can be discharged smoothly. In the later maintenance of the retaining wall, it is also only necessary to rotate the drain pipe body 100 so that the cutting piece 500 cuts the soil to dredge the blocked drain pipe body 100, so that the water behind the retaining wall can be discharged smoothly.

[0041] In this embodiment, the drain pipe body 100 can rotate in the sleeve 300, and a partition net 400 with a cutting piece 500 is installed at the water inlet end 130 of the drain pipe body 100. When the drain pipe body 100 is blocked and cannot effectively drain water, the drain pipe body 100 only needs to be rotated to drive the cutting piece 500 installed at the water inlet end 130 to cut the soil blocking the water inlet end 130, so as to increase the drainage gap of the soil, which is helpful for the normal drainage of the drain pipe body 100, and further reduces the water and soil pressure on the back of the retaining wall during use, thereby ensuring the durability of the retaining wall and increasing the service life of the retaining wall.

[0042] In this embodiment, the filter assembly 200 is arranged inside the drain pipe body 100, which reduces the impact of the backfill of the soil body behind the retaining wall on the filter assembly 200. At the same time, the structure and construction method of this embodiment are relatively simple, easy to construct and use, and high in maintenance efficiency.

[0043] like Figure 5 and Figure 6 As shown, each cutting member 500 in this embodiment includes a cutting body 510 and a cutting portion 520, wherein the cutting portion 520 is disposed at the end of the cutting body 510, and the cutting body 510 is mounted on the drain pipe body 100 through the spacer 400, so that the cutting portion 520 can cut the soil when the drain pipe body 100 rotates. In this embodiment, the drain pipe body 100 can rotate in the casing 300, and the cutting body 510 is mounted on the drain pipe body 100 through the spacer 400, so that the cutting portion 520 can cut the soil behind the retaining wall when the drain pipe body 100 rotates, so as to increase the water-passing gap of the backfill of the retaining wall.

[0044] In this embodiment, cutting parts 520 are provided at both ends of the cutting body 510. Providing multiple cutting parts 520 can more fully cut the soil, so that more water-passing gaps are formed when the drain pipe body 100 is rotated, and the maintenance efficiency is higher.

[0045] like Figure 5 and Figure 6 As shown, in this embodiment, each cutting member 500 includes a connection hole 511 penetrating the cutting body 510, and each cutting member 500 is installed on the partition net 400 through the connection hole 511. The stability and accuracy of the cutting member 500 installed on the partition net 400 are ensured to ensure that the cutting member 500 will not fall off from the partition net 400 when cutting the soil.

[0046] Preferably, the cutting piece 500 in this embodiment is a hyperbolic cylinder, and the cutting portion 520 is a blade for cutting the soil. The blade is located at both ends of the cylinder, and the blade is set perpendicular to the direction of the axis of the cylinder. During the rotation of the cutting piece 500, the blade can directly cut the soil to form a number of water gaps to clear the drainage pipe body 100.

[0047] like Figure 4 As shown, the partition net 400 in this embodiment includes a plurality of steel wires 410 arranged in a mesh shape, and a plurality of steel wires 410 are arranged to form a plurality of intersections, where the cutting pieces 500 are located, and at least two steel wires 410 can pass through the connecting holes 511 to fix each cutting piece 500 on the partition net 400. The steel wires 410 arranged in a mesh shape increase the strength of the partition net 400, and each steel wire 410 cooperates with each connecting hole 511 to ensure that the cutting piece 500 will not fall off the partition net 400 during the process of cutting the soil.

[0048] In this embodiment, the steel wire 410 passes through the connecting hole 511, and the cutting piece 500 is installed on the partition net 400, and the axis of the cutting piece 500 is parallel to the surface of the partition net 400, and the blade is perpendicular to the surface of the partition net 400, ensuring that the blade can effectively cut the soil.

[0049] In other embodiments, the cutting element 500 may be a soil cutting knife, a ring knife, or other tool that can be used to cut soil.

[0050] like Figure 2 As shown, the filter assembly 200 in this embodiment includes a geotextile 210, gravel 220, crushed stone 230 and a filter material support plate 240 arranged in sequence from the water inlet end 130 to the inner cavity of the drain pipe body 100. The geotextile 210 can effectively intercept soil particles, fine yarn, small stones, etc., and prevent these fine particles from entering the inner cavity of the drain pipe body 100 with the water flow to maintain the stability of the water and soil engineering. The particle size of the gravel 220 and the crushed stone 230 gradually increases along the direction of the water flow, further filtering impurities in the water flow, especially larger suspended matter and particulate matter, while providing a channel for the flowing water to ensure that the water flow can be discharged smoothly. The filter material support plate 240 is located in the innermost layer, providing support for the entire filter assembly 200 to ensure the stability and safety of the structure.

[0051] Preferably, the particle diameter of the gravel 220 is smaller than the particle diameter of the crushed stone 230, and the thickness of the filter layer formed by the geotextile 210, gravel 220 and crushed stone 230 is about 50 cm, which can effectively prevent the fine particles in the soil from being lost with the infiltration water flow, effectively prevent seepage damage, and at the same time provide a discharge channel for the flowing water, thereby ensuring the anti-seepage stability of the anti-filtration component 200.

[0052] Optionally, the filter assembly 200 is sequentially provided with a geotextile 210, a fine sand layer, a medium-coarse sand layer, a gravel layer, a coarse sand layer and a filter material support plate 240 from the water inlet end 130 to the inner cavity of the drain pipe body 100, and the diameter of the above-mentioned layers of granular materials increases sequentially.

[0053] In other embodiments, each layer of granular material in the filter assembly 200 may be made of other materials, such as expanded clay, and the particle sizes of each layer of granular material arranged from the water inlet end 130 to the inner cavity of the drain pipe body 100 increase successively.

[0054] like Figure 7 As shown, the filter material support plate 240 in this embodiment includes a support plate body 241 and a plurality of filter holes 242, and the filter holes 242 are evenly distributed on the support plate body 241. The filter material support plate 240 supports the gravel 220 and the crushed stone 230, and ensures that the infiltrated water flow behind the retaining wall can smoothly pass through the filter holes 242, effectively preventing the loss of the gravel 220 and the crushed stone 230.

[0055] Preferably, in this embodiment, the filter holes 242 are regular hexagons, and the spacing is evenly distributed on the support plate body 241.

[0056] In other embodiments, the filter hole 242 may be circular, elliptical, triangular, or the like.

[0057] like Figures 1 to 3 As shown, the outer wall of the drain pipe body 100 in this embodiment is provided with a first stopper 110, and the inner wall of the sleeve 300 is provided with a second stopper 310, and the first stopper 110 and the second stopper 310 are adapted to enable the drain pipe body 100 to rotate in the sleeve 300. The first stopper 110 and the second stopper 310 cooperate with each other to prevent the drain pipe body 100 from falling off from the sleeve 300 during the rotation process in the sleeve 300, thereby improving the rotation stability of the drain pipe body 100.

[0058] In this embodiment, the first stopper 110 includes a plurality of annular grooves, and the second stopper 310 includes a plurality of stopper steps, each of which can be snapped into each annular groove to install the drain pipe body 100 in the sleeve 300. The cooperation between the annular groove and the stopper step ensures that the drain pipe body 100 can rotate in the sleeve 300 while preventing the drain pipe body 100 from falling out of the sleeve 300.

[0059] In other embodiments, the first stopper 110 includes a plurality of annular grooves, and the second stopper 310 may be a bearing sleeved on one end of the drain pipe body 100, the inner ring of the bearing is fixed on the drain pipe body 100, and the outer ring is clamped in the annular groove to achieve a rotatable connection between the drain pipe body 100 and the sleeve 300. Similarly, multiple bearings and annular grooves may be provided, and the two correspond to each other one by one.

[0060] In other embodiments, the first limiting member 110 may not be provided, and only the bearing sleeved on the drain pipe body 100 may be provided separately to ensure that the drain pipe body 100 can rotate in the sleeve 300 .

[0061] Preferably, two first limit members 110 are provided on the drain pipe body 100, and two second limit members 310 are provided on the sleeve 300, and the two second limit members 310 are respectively close to the two ends of the sleeve 300, and the two first limit members 110 are respectively close to the two ends of the drain pipe body 100 in one-to-one correspondence.

[0062] In other embodiments, a plurality of first limit members 110 and second limit members 310 may be provided, and the positions of the first limit members 110 and the second limit members 310 correspond one to one, so that the drain pipe body 100 is more firmly installed in the sleeve 300, while ensuring that the drain pipe body 100 and the sleeve 300 can rotate relative to each other.

[0063] like Figure 1As shown, the length of the drain pipe body 100 in this embodiment is greater than the length of the sleeve 300, and the outlet end 120 of the drain pipe body 100 extends out of one end of the sleeve 300, so that a torque is applied to the outlet end 120 so that the drain pipe body 100 can rotate in the sleeve 300. The outlet end 120 of the drain pipe body 100 is exposed outside the wall. When the drain pipe body 100 is blocked and the drainage effect is weakened, the construction personnel can directly apply a torque to the outlet end 120 to rotate the drain pipe body 100 relative to the sleeve 300, thereby driving the cutting piece 500 to cut the soil behind the retaining wall to form a drainage gap, so that the water flow behind the retaining wall can be discharged normally, reducing the water and soil pressure behind the retaining wall, and ensuring the service life of the retaining wall.

[0064] In other embodiments, the length of the drain pipe body 100 can be consistent with the length of the sleeve 300, and the construction personnel can use other tools to rotate the drain pipe body 100; or, a rotating handle can be set at the outlet end 120 of the drain pipe body 100 to facilitate the construction personnel to rotate the drain pipe body 100, drive the cutting piece 500 to cut the soil to form a drainage gap, and ensure the normal drainage of the drain pipe body 100.

[0065] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A retaining wall back-filtration drainage pipe that is easy to maintain, characterized in that: include: A drain pipe body (100) and a sleeve (300), wherein the drain pipe body (100) is provided with an anti-filtration component (200) for preventing the soil behind the retaining wall from leaking outwards, and the sleeve (300) is sleeved on the outside of the drain pipe body (100), and the drain pipe body (100) can rotate in the sleeve (300); A partition net (400) is installed at the water inlet end (130) of the drain pipe body (100), and a plurality of cutting pieces (500) for cutting soil are installed on the partition net (400).

2. The easy-to-maintain retaining wall anti-filtration drainage pipe according to claim 1 is characterized in that: Each cutting element (500) comprises a cutting body (510) and a cutting portion (520), wherein the cutting portion (520) is arranged at the end of the cutting body (510), and the cutting body (510) is installed on the drain pipe body (100) through the partition net (400), so that the cutting portion (520) can cut the soil when the drain pipe body (100) rotates.

3. The easy-to-maintain retaining wall anti-filtration drainage pipe according to claim 2 is characterized in that: The cutting parts (520) are disposed at both ends of the cutting body (510).

4. The easy-to-maintain retaining wall anti-filtration drainage pipe according to claim 2 is characterized in that: Each of the cutting pieces (500) comprises a connection hole (511) penetrating the cutting body (510), and each of the cutting pieces (500) is mounted on the partition net (400) through the connection hole (511).

5. The easy-to-maintain retaining wall anti-filtration drainage pipe according to claim 4 is characterized in that: The partition net (400) comprises a plurality of steel wires (410) arranged in a mesh shape, and at least two of the steel wires (410) can pass through the connection holes (511) to fix each cutting piece (500) on the partition net (400).

6. The easy-to-maintain retaining wall anti-filtration drainage pipe according to claim 1, characterized in that: The reverse filtration assembly (200) comprises a geotextile (210), gravel (220), crushed stone (230) and a filter material support plate (240) which are sequentially arranged from the water inlet end (130) to the inner cavity of the drain pipe body (100).

7. The easy-to-maintain retaining wall anti-filtration drainage pipe according to claim 6, characterized in that: The filter material support plate (240) comprises a support plate body (241) and a plurality of filter holes (242), wherein the filter holes (242) are evenly distributed on the support plate body (241).

8. The easy-to-maintain retaining wall anti-filtration drainage pipe according to claim 1, characterized in that: The outer wall of the drain pipe body (100) is provided with a first limiting member (110), and the inner wall of the sleeve (300) is provided with a second limiting member (310), and the first limiting member (110) is matched with the second limiting member (310) so that the drain pipe body (100) can rotate in the sleeve (300).

9. The easy-to-maintain retaining wall anti-filtration drainage pipe according to claim 8, characterized in that: The first limiting member (110) includes a plurality of annular grooves, and the second limiting member (310) includes a plurality of limiting steps, each of which can be snapped into each of the annular grooves to install the drain pipe body (100) in the sleeve (300).

10. The easy-to-maintain retaining wall anti-filtration drainage pipe according to claim 1, characterized in that: The length of the drain pipe body (100) is greater than the length of the sleeve (300), and the water outlet end (120) of the drain pipe body (100) extends out of one end of the sleeve (300) so as to apply torque to the water outlet end (120) so that the drain pipe body (100) can rotate in the sleeve (300).

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