Embedded retaining wall drainage inverted filter structure

Abstract

The utility model relates to the technical field of retaining walls, and discloses an embedded drainage inverted filter structure of a retaining wall. The multi-layer drainage structure comprises a plurality of layers of drainage structures which are arranged in the retaining wall according to different heights, each layer of drainage structure comprises a plurality of embedded frames which are embedded in the middle of the retaining wall at intervals, and a coarse aggregate layer, a fine aggregate layer and a water absorption material layer are sequentially arranged in each embedded frame in the direction from the exterior of the retaining wall to the interior of the retaining wall. The water absorbing material layer is connected with the two-way slope waterproof cloth, and the adjacent two-way slope waterproof cloth is connected through the waterproof adhesive tape. The main body structure only comprises the embedded filter bag and the waterproof cloth which are embedded in the frame, the structure is very simple, a traditional retaining wall exposed inverted filter bag water collection and drainage mode is changed into an embedded mode, integrated construction of the retaining wall and a drainage device can be achieved, accurate control over the construction progress and quality is guaranteed, and meanwhile the construction efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to retaining wall technical field, especially a kind of embedded retaining wall drainage anti-filter structure, the retaining wall involved includes oblique, vertical, oblique retaining wall and so on. BACKGROUND

[0002] Retaining wall structure is various, "supporting+drainage" is its main component and function.

[0003] In the practical application of retaining wall, drainage hole is prone to blockage after using traditional drainage system, and drainage is not smooth, and the damage of drainage system is a common quality problem. Root cause, mainly the following reasons:

[0004] 1, construction technology is old. Double anti-filter bag construction relies on manual masonry, and the construction quality is not easy to control, which can affect the drainage effect.

[0005] 2, the next filling compaction process is easy to disturb the setting and positioning of anti-filter bag, and the drainage organization durability is poor, which can cause anti-filter layer siltation failure and drainage pipe blockage.

[0006] The common retaining wall structure is shown in the figure. Fig. 1-2 The utility model discloses a kind of embedded retaining wall drainage anti-filter structure. UTILITY MODEL CONTENT

[0007] The utility model provides a kind of embedded retaining wall drainage anti-filter structure, which is at least to solve one of the problems mentioned in the background art, such as the construction quality of the existing retaining wall drainage facility being difficult to control, the backfill compaction being prone to disturbance and damage, and the drainage hole being prone to blockage.

[0008] The utility model discloses the following technical scheme to achieve the purpose of the invention:

[0009] A kind of embedded retaining wall drainage anti-filter structure, including retaining wall and drainage pipe;Including multiple layers of drainage structure arranged in retaining wall according to different heights, single layer drainage structure includes multiple pre-buried frames arranged in retaining wall at intervals, coarse aggregate layer, fine aggregate layer and water-absorbing material layer are arranged in pre-buried frame from the direction of retaining wall outside to retaining wall inside in sequence, water-absorbing material layer is connected with two-way slope water-proof cloth, and adjacent two-way slope water-proof cloth is connected by waterproof tape.

[0010] In the foregoing embedded retaining wall drainage anti-filter structure, the two-way slope water-proof cloth includes a reverse-rolled water-proof cloth arranged against the retaining wall, a drainage opening matching the width of the water-absorbing material layer is provided in the middle of the reverse-rolled water-proof cloth, the bottom of the reverse-rolled water-proof cloth on both sides of the drainage opening is connected with a side slope water-proof cloth arranged downwardly and inclinedly towards the drainage opening, and the two side slope water-proof cloths are connected with a middle slope water-proof cloth arranged downwardly and inclinedly towards the drainage opening.

[0011] The retaining wall and the reverse rolling water isolation cloth are bonded in the preceding embedded retaining wall drainage reverse filter structure.

[0012] The waterproof adhesive tape is used to connect two adjacent side slope water isolation cloths in the preceding embedded retaining wall drainage reverse filter structure.

[0013] The inclination angle of the side slope water isolation cloth and the middle slope water isolation cloth is 2-6% in the preceding embedded retaining wall drainage reverse filter structure.

[0014] The coarse aggregate layer and the fine aggregate layer are wrapped by the water permeable geotextile in the preceding embedded retaining wall drainage reverse filter structure.

[0015] The embedded frame is funnel-shaped in the preceding embedded retaining wall drainage reverse filter structure.

[0016] The fine aggregate layer and the water absorption material layer are horn-shaped in the preceding embedded retaining wall drainage reverse filter structure.

[0017] The embedded frame is provided with a reinforcing steel bar in the preceding embedded retaining wall drainage reverse filter structure.

[0018] The coarse aggregate layer is connected with the drainage pipe in the preceding embedded retaining wall drainage reverse filter structure.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] 1、 The main structure of the utility model only includes the embedded filter bag and the water isolation cloth in the embedded frame, and the structure is very simple; the utility model changes the traditional exposed reverse filter bag drainage form into an embedded type, can realize the integration of the retaining wall and the drainage device, ensures the accurate control of construction progress and quality, and can also improve construction efficiency.

[0021] 2、 The utility model is arranged in a multilayer drainage structure, and each layer of drainage structure strengthens the organized isolation, collection and discharge of water at each position beside the retaining wall in a whole forming mode, the embedded structure increases the drainage port, significantly improves the drainage performance of the retaining wall, and greatly enhances the use function of the retaining wall.

[0022] 3、 The utility model adopts the embedded drainage structure, the reverse filter layer is protected by the embedded frame, the drainage hole is not easy to be blocked in the later period, and the reverse filter layer can avoid interfering with the backfill rolling process of the back, so that the drainage quality and the backfill rolling quality of the back are ensured.

[0023] 4、 Through practice, the utility model can also reduce the adverse effects of construction on the environment, and realize the harmonious unity of engineering construction and ecological environment protection. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 is a structural schematic diagram of an existing retaining wall;

[0025] Fig. 2 is Fig. 1 a schematic diagram of a reverse filtration structure in the

[0026] Fig. 3 is a structural schematic diagram of the present application;

[0027] Fig. 4 is a plan structural schematic diagram of the present application;

[0028] Fig. 5 is Fig. 4 a sectional structural schematic diagram of A-A in the

[0029] Fig. 6 is Fig. 4 a sectional structural schematic diagram of B-B in the

[0030] The marks in the drawings are: drain pipe 1, coarse aggregate layer 2, fine aggregate layer 3, water absorbing material layer 4, two-way slope water stop cloth 5, waterproof tape 6, pre-embedded frame 7, wall 8, fill 9; reverse water stop cloth 51, drain 52, side slope water stop cloth 53, middle slope water stop cloth 54; and the arrows in the diagram represent the direction of water flow. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, not all.

[0032] An embodiment is an embedded retaining wall drainage reverse filtration structure, the structure is as shown in Fig. 3-6 , comprising a retaining wall and a drain pipe 1; comprising a plurality of layers of drainage structures arranged in the retaining wall according to different heights, a single layer of drainage structure comprising a plurality of pre-embedded frames 7 arranged in the retaining wall at intervals, coarse aggregate layer 2, fine aggregate layer 3 and water absorbing material layer 4 being arranged in the pre-embedded frame 7 in sequence from the outside of the retaining wall to the inside of the retaining wall, the water absorbing material layer 4 being connected with two-way slope water stop cloth 5, adjacent two-way slope water stop cloth 5 being connected by waterproof tape 6. In the project, the interval range between each layer of drainage structure is 1.5-3m, and in the present embodiment, 2.5m is preferred; adjacent pre-embedded frames 7 are arranged at intervals of 3m.

[0033] The bidirectional slope waterproof cloth 5 includes a reverse-rolled waterproof cloth 51 arranged on the retaining wall, a drainage port 52 with a width matching that of the water-absorbing material layer 4 is arranged in the middle of the reverse-rolled waterproof cloth 51, the bottoms of the reverse-rolled waterproof cloths 51 on both sides of the drainage port 52 are respectively connected to side slope waterproof cloths 53 arranged downward and inclined to the drainage port 52, and a middle slope waterproof cloth 54 arranged downward and inclined to the drainage port 52 is connected between the two side slope waterproof cloths 53. Through the foregoing arrangement, the bidirectional slope waterproof cloth 5 can effectively collect water in its range and then discharge the water from the drainage port 52.

[0034] The reverse-rolled waterproof cloth 51, that is, the folded part of the bidirectional slope waterproof cloth 5, is arranged on the wall by using waterproof adhesive tape.

[0035] The waterproof adhesive tape 6 is used to connect two adjacent side slope waterproof cloths 53, so that the bidirectional slope waterproof cloths 5 of each layer of drainage structure can form a whole, thereby effectively collecting water at each height position.

[0036] The inclination angles of the side slope waterproof cloths 53 and the middle slope waterproof cloth 54 are 2-6%. Here, the percentage is used to express the inclination degree of the slope, which is a common expression in engineering. In actual construction, the inclination degree of 5% is preferred, and water penetrating through the filled soil at this slope can be effectively collected by the bidirectional slope waterproof cloth 5 and then collected in the drainage port 52. Fig. 5 The bottoms of the coarse aggregate layer 2, the fine aggregate layer 3, and the water-absorbing material layer 4 also maintain the inclination degree of 5% to facilitate drainage, and the shape of the embedded frame 7 is also set accordingly.

[0037] The coarse aggregate layer 2 and the fine aggregate layer 3 are wrapped with water-permeable geotextile to form an embedded filter package, which ensures water permeability and facilitates rapid construction.

[0038] The embedded frame 7 is funnel-shaped. The funnel-shaped design is more conducive to the collection and discharge of water. During construction, the material of the embedded frame can be determined according to the materials on site (such as waste steel, bamboo plywood, finished drainage channels, etc.), so as to reduce the production cost.

[0039] The coarse aggregate layer 2, the fine aggregate layer 3, and the water-absorbing material layer 4 are horn-shaped, matching the shape of the embedded frame 7. (In the drawing, the coarse aggregate layer 2 is square, which is only better to distinguish the structure, and in fact, the structure is also preferably horn-shaped)

[0040] The embedded frame 7 is provided with a reinforcing member to increase the structural strength.

[0041] The coarse aggregate layer 2 is connected to the drainage pipe 1.

[0042] Preferably, the coarse aggregate layer 2 is composed of coarse aggregate, which refers to gravel or pebble with a particle size of 2-3 cm; the fine aggregate layer 3 is composed of fine aggregate, which refers to gravel or stone chips with a particle size of 1-5 mm; the drain pipe 1 is a PVC drain pipe; and the water absorption material layer 4 can be filled with existing water absorption and permeable materials (such as polyurethane sponge, non-woven fabric, etc.).

[0043] The aforementioned embedded retaining wall drainage and reverse filtration structure is implemented as follows: a horn-shaped hole is reserved for setting a pre-embedded frame 7 during construction of the retaining wall body, and the coarse aggregate layer 2 and the fine aggregate layer 3 wrapped by the permeable geotextile are embedded in the pre-embedded frame 7 to form a filter bag, and the folded bidirectional slope waterproof cloth 5 is placed at the position of the reserved water absorption material layer 4; when the retaining wall is filled and rammed to the design elevation of the hole, the folded bidirectional slope waterproof cloth 5 is unfolded and laid according to the slope, and the adjacent bidirectional slope waterproof cloths 5 are connected to form a whole by using waterproof tape 6, and the reverse-rolled waterproof cloth 51 of the wall-adhering reverse-rolled part is fixed on the wall body by using waterproof tape; then, the water absorption material layer 4 is filled with water absorption material, and the drainage structure of each layer is simultaneously embedded and implemented during construction of the retaining wall body according to the design. The retaining wall repaired according to the aforementioned method can be drained through the multilayer drainage structure, and through each layer of the drainage structure, the water at each height in the soil can be layered through the bidirectional slope waterproof cloth 5 to realize local organized water isolation, water collection and drainage, and the collected water flows from the drain outlet 52 to the horn-shaped hole, and then passes through the reverse filtration layer composed of the water absorption material layer 4, the fine aggregate layer 3 and the coarse aggregate layer 2 in turn, and is quickly drained through the PVC drain pipe 1, thereby greatly reducing the water pressure behind the wall and improving the stability of the retaining wall.

[0044] The above merely describes the preferred specific embodiments of the application, but the protection scope of the application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical solutions and concepts of the application within the technical scope disclosed by the application, which should be covered within the protection scope of the application.

Claims

1. An embedded retaining wall drainage anti-filtration structure, comprising a retaining wall and a drainage pipe (1), characterized in that: The application relates to a multi-layer drainage structure arranged in a retaining wall according to different heights, wherein a single-layer drainage structure comprises a plurality of pre-buried frames (7) arranged in the retaining wall at intervals, coarse aggregate layers (2), fine aggregate layers (3) and water-absorbing material layers (4) are sequentially arranged in the pre-buried frames (7) from the outside of the retaining wall to the inside of the retaining wall, the water-absorbing material layers (4) are connected with bidirectional slope water-proof cloth (5), and the adjacent bidirectional slope water-proof cloth (5) is connected through waterproof adhesive tape (6).

2. The internally keyed retaining wall drainage and filter structure of claim 1, wherein: The bidirectional slope water-proof cloth (5) comprises reverse-rolled water-proof cloth (51) arranged on the retaining wall, the reverse-rolled water-proof cloth (51) is provided with drainage openings (52) matching the width of the water-absorbing material layers (4) in the middle, the bottoms of the reverse-rolled water-proof cloth (51) on both sides of the drainage openings (52) are respectively connected with side slope water-proof cloth (53) arranged downwardly and obliquely to the drainage openings (52), and the two pieces of side slope water-proof cloth (53) are connected with middle slope water-proof cloth (54) arranged downwardly and obliquely to the drainage openings (52).

3. The internally keyed retaining wall drainage and filter structure of claim 2, wherein: The retaining wall and the reverse-rolled water-proof cloth (51) are bonded.

4. The internally keyed retaining wall drainage and filter structure according to claim 2, wherein: The adjacent bidirectional slope water-proof cloth (5) is connected with two adjacent side slope water-proof cloth (53) through waterproof adhesive tape (6).

5. The internally keyed retaining wall drainage and filter structure according to claim 2, wherein: The inclination angles of the side slope water-proof cloth (53) and the middle slope water-proof cloth (54) are 2-6%.

6. The internally keyed retaining wall drainage and filter structure according to claim 1, wherein: The coarse aggregate layers (2) and the fine aggregate layers (3) are wrapped with water-permeable geotextile.

7. The internally keyed retaining wall drainage and filter structure according to claim 1, wherein: The pre-buried frames (7) are funnel-shaped.

8. The internally keyed retaining wall drainage and filter structure according to claim 7, wherein: The coarse aggregate layers (2), the fine aggregate layers (3) and the water-absorbing material layers (4) are horn-shaped.

9. The internally keyed retaining wall drainage and filter structure according to claim 1, wherein: The pre-buried frames (7) are provided with steel reinforcing members.

10. The internally keyed retaining wall drainage and filter structure according to claim 1, wherein: The coarse aggregate layers (2) are connected with drainage pipes (1).

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