Reverse filter containment well

Abstract

The utility model provides a kind of inverse filtration surrounding well.The inverse filtration surrounding well includes well wall, the well wall includes a plurality of head-to-tail sequentially connected retaining wall, the retaining wall includes baffle, heel plate connected to the lower end outside of the baffle and toe plate connected to the lower end inside of the baffle, and the baffle of multiple retaining walls is connected.The utility model sets toe plate on the inside of baffle, and heel plate on the outside jointly acts, can resist baffle floating and sideslip, and improves stability.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower engineering technology, and in particular to a reverse filter well. Background Technology

[0002] A filter well is an emergency rescue measure used in water conservancy projects such as embankments and earth dams to deal with piping (soil erosion) hazards. Its core principle is to construct a well at the piping outlet and lay a filter layer inside the well to reduce seepage pressure and prevent soil particles from being carried away by the water flow, thereby stabilizing the hazard.

[0003] Existing reverse filtration wells, such as the piping-induced water-sand separation pressure filter well disclosed in patent publication number CN109847446A, include a well shell, inside which are arranged fine-pore filter bags, feed filter bags, and water-absorbing mesh pressure bags. The well shell has a tapered shape and an annular flange fixing plate at the bottom, with a gravity bag installed on the flange fixing plate. It is supported only by the flange fixing plate connected to the outside of the well shell, which easily causes the filter well to float and slide sideways. Utility Model Content

[0004] The purpose of this invention is to provide a reverse filter well that can resist baffle floating and lateral slippage.

[0005] The technical solution of this utility model is: a reverse filter well, including a well wall, the well wall including a plurality of retaining walls connected end to end, the retaining wall including a baffle, a heel plate connected to the outer side of the lower end of the baffle and a toe plate connected to the inner side of the lower end of the baffle, the baffles of the plurality of retaining walls are connected.

[0006] In the above scheme, by setting a toe plate on the inner side of the baffle, which works together with the heel plate on the outer side, the baffle can resist floating and lateral slippage, thus improving stability.

[0007] Preferably, the toe plate has chamfered edges at both ends.

[0008] Preferably, a support plate is connected between the baffle and the heel plate.

[0009] Preferably, the support plate is a right triangle with a first right-angled side, a second right-angled side, and a hypotenuse, wherein the first right-angled side is connected to the baffle, and the second right-angled side is connected to the heel plate.

[0010] Preferably, the baffle and the heel plate are provided with support grooves for mounting the support plate.

[0011] Preferably, the well wall is provided with multiple layers of backfill material.

[0012] Preferably, the baffle is a transparent plate.

[0013] Preferably, the baffle is provided with partition lines corresponding to the multi-layer backfill material.

[0014] Preferably, the upper ends of the two opposite sidewalls of the well are provided with drainage pipes.

[0015] Compared with related technologies, the beneficial effects of this utility model are as follows: I. This utility model improves stability by setting a toe plate on the inner side of the baffle, which works together with the heel plate on the outer side to resist the baffle from floating and sliding. 2. The baffles set in the reverse filter well are transparent plates, which can intuitively judge the thickness of backfill materials of different particle sizes, reduce the lack of on-site personnel's ability to handle emergencies, and ensure the safety of the embankment (earth dam); Third, the reverse filter well is provided with a support plate between the heel plate and the baffle plate, which provides core support for the baffle plate and enhances the overall stability of the retaining wall; IV. This utility model utilizes baffles to adjust the backfill thickness of different aggregates, and adds partition lines to visually determine the height of each layer of backfill. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the reverse filter well provided by this utility model; Figure 2 This is a structural schematic diagram of the retaining wall; Figure 3 A schematic diagram of the support plate.

[0017] In the attached diagram: 1. Retaining wall; 11. Heel plate; 12. Toe plate; 13. Baffle; 14. Support groove; 15. Partition line; 16. Drainage hole; 2. Backfill material; 3. Support plate; 31. First right-angled side; 32. Second right-angled side; 33. Hydrate; 4. Well wall; 5. Drainage pipe; 121. Chamfer. Detailed Implementation

[0018] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0019] like Figure 1 As shown, this embodiment provides a reverse filter well including a well wall 4. The well wall 4 includes multiple retaining walls 1 assembled end-to-end. Figure 2As shown, the retaining wall 1 includes a baffle 13, a heel plate 11 connected to the outer side of the lower end of the baffle 13, and a toe plate 12 connected to the inner side of the lower end of the baffle 13. The toe plate 12 is mainly used to resist the floating and lateral slippage of the baffle 13. Depending on the actual site conditions, a load (such as a gravity bag) can be added to the heel plate 11 to ensure the stability of the retaining wall 1. The two ends of the toe plate 12 are provided with chamfered edges 121 to avoid interference between the connected toe plates 12.

[0020] The outer surface of the baffle 13 is provided with partition lines 15. Text indicating the backfill content can be marked between the partition lines 15, specifying the type and specifications of the backfill material. For example: 100mm-300mm boulders, 2mm-5mm coarse sand, 5mm-10mm small stones, 10mm-20mm large stones, etc., to ensure standardized use and avoid problems caused by insufficient user experience in handling emergencies. The well wall 4 contains multiple layers of backfill material 2. The partition lines 15 allow for a direct visual assessment of the thickness of each layer of backfill material 2.

[0021] like Figure 2 As shown, the baffle 13 and the heel plate 11 are provided with support grooves 14. Figure 1 As shown, a support plate 3 is installed on the support groove 14. Figure 1 , Figure 3 As shown, the support plate 3 is a right triangle with a first right-angled side 31, a second right-angled side 32, and a hypotenuse 33. The first right-angled side 31 is connected to the baffle 13, and the second right-angled side 32 is connected to the heel plate 11. The support plate 3 provides core support for the baffle 13, ensuring the long-term stable use of the reverse filter well.

[0022] like Figure 1 , Figure 2 As shown, drainage pipes 5 are provided at the upper ends of the two opposite side walls of the well wall 4. Two oppositely arranged baffles 13 are provided with drainage holes 16 through which the drainage pipes 5 pass. The drainage pipes 5 can discharge water from the piping channel of the dike, reduce the uplift pressure within the dike (earth dam), and ensure the safety and stability of the dike.

[0023] The retaining wall 1 can be set as an assembled structure connected by detachable hinges, with sealing strips at the joints. The support plate 3 and support groove 14 are detachable plug-in structures, and the drainage pipe 5 is a detachable plug-in structure, which facilitates easy relocation and storage.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A reverse filter well, comprising a well wall (4), characterized in that, The well wall (4) includes multiple retaining walls (1) connected end to end. Each retaining wall (1) includes a baffle (13), a heel plate (11) connected to the outer side of the lower end of the baffle (13), and a toe plate (12) connected to the inner side of the lower end of the baffle (13). The baffles (13) of the multiple retaining walls (1) are connected.

2. The reverse filter well according to claim 1, characterized in that, The toe plate (12) has chamfered edges (121) at both ends.

3. The reverse filter well according to claim 1, characterized in that, A support plate (3) is connected between the baffle (13) and the heel plate (11).

4. The reverse filter well according to claim 3, characterized in that, The support plate (3) is a right triangle with a first right-angled side (31), a second right-angled side (32) and a hypotenuse (33). The first right-angled side (31) is connected to the baffle (13), and the second right-angled side (32) is connected to the heel plate (11).

5. The reverse filter well according to claim 3, characterized in that, The baffle (13) and heel plate (11) are provided with support grooves (14) for mounting the support plate (3).

6. The reverse filter well according to claim 1, characterized in that, The well wall (4) is provided with multiple layers of backfill material (2).

7. The reverse filter well according to claim 1, characterized in that, The baffle (13) is a transparent plate.

8. The reverse filter well according to claim 6, characterized in that, The baffle (13) is provided with partition lines (15) corresponding to the multi-layer backfill (2).

9. The reverse filter well according to any one of claims 1-8, characterized in that, The upper ends of the two opposite side walls of the well wall (4) are provided with drainage pipes (5).

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