Basement drainage ditch drainage structure and construction method

Abstract

The invention relates to the field of basement drainage ditch construction, in particular to a basement drainage ditch drainage structure which comprises a drainage ditch, a drainage plate, non-woven fabric and a gravel layer, one side ditch wall of the drainage ditch is attached to a wall of a basement by a circle, the gravel layer is arranged outside the other side ditch wall of the drainage ditch, and the drainage ditch is connected with a water collecting well. Drainage plates are arranged at the bottoms of the ditch walls on the two sides of the drainage ditch respectively and are concave-convex drainage plates, round bosses are formed at the bottoms of the drainage plates at intervals, the drainage plates close to the gravel layer extend from the bottoms of the ditch walls of the drainage ditch to the gravel layer to form extension sections, and non-woven fabrics are laid on the outer surfaces of the ditch walls adjacent to the gravel layer and the tops of the extension sections of the drainage plates. The gravel layer is located on the upper portion of the non-woven fabric. The drainage plate is arranged at the bottom of the ditch wall of the drainage ditch, the drainage effect is greatly improved, and the overall reliability and continuity of a drainage system can be guaranteed through the design of the concave-convex drainage plate.

Description

Technical Field

[0001] The invention relates to the construction field of basement drainage ditches, and in particular to a basement drainage ditch drainage structure and a construction method. Background Art

[0002] In basement projects, groundwater seeping into the floor will have an adverse effect on the structure and affect the normal use of the basement. In order to solve this problem, the prior art often uses gravel laid under the basement floor as a hydrophobic layer so that the leaked water can be discharged to the surrounding drainage ditch in time. At the same time, PVC pipes will be pre-buried on the wall of the drainage ditch as a conduit to drain the water. However, this method often has insufficient drainage capacity and easy clogging of pipes in actual applications, resulting in local water accumulation. To this end, it is necessary to explore and develop more efficient drainage technologies to improve the drainage efficiency of the hydrophobic layer and ensure its normal use. Summary of the invention

[0003] The present invention first discloses a basement drainage ditch drainage structure with good drainage effect and drainage channel that is not easily blocked, which is specifically implemented by the following technical solutions: A drainage structure for a basement drainage ditch comprises a drainage ditch, a drainage board, a non-woven fabric and a crushed stone layer. The ditch wall on one side of the drainage ditch is arranged in a circle in contact with the wall of the basement, and a crushed stone layer is arranged outside the ditch wall on the other side of the drainage ditch. The height of the crushed stone layer is lower than the height of the ditch wall. The drainage ditch is connected to a water collection well. Drain boards are arranged at the bottom of the ditch walls on both sides of the drainage ditch respectively. The lower part of the drainage board is the basement of the basement. The drainage board adopts a concave-convex drainage board. The bottom of the drainage board forms a circular boss at intervals. The circular boss faces one side of the basement and is adjacent to the crushed stone layer. The drainage board on the side extends from the bottom of the ditch wall of the drainage ditch to the gravel layer to form an extended section, and non-woven fabric is laid along the outer surface of the ditch wall adjacent to the gravel layer to the top surface of the extended section of the drainage board to the base surface outside the drainage board, and the gravel layer is located on the upper part of the non-woven fabric; the holes on the drainage board connect the drainage ditch and the gravel layer, the side end face of the drainage board is flush with the ditch wall of the drainage ditch, a cement mortar leveling layer is formed at the bottom of the drainage ditch, and a notch with an inclined angle is formed between the two ends of the cement mortar leveling layer and the drainage board on the corresponding side, and the notch serves as a drainage channel opening.

[0004] Furthermore, the non-woven fabric is a polyester non-woven fabric, which meets the requirements of ≥100g / m 2 .

[0005] Furthermore, the crushed stone layer uses graded crushed stone with a maximum particle size not greater than 30 mm.

[0006] Furthermore, the height of the drainage board is 30 mm.

[0007] Furthermore, the extension length of the drainage board is 200 mm.

[0008] Furthermore, the inclination angle of the hydrophobic channel opening is 45°.

[0009] The present invention also discloses a construction method of the above-mentioned basement drainage ditch drainage structure, which comprises the following steps: Step 1): Clean the base surface of the basement; Step 2): Stake out the drainage ditch; Step 3): Laying of drainage board; Step 4): Forming and pouring the drainage ditch wall on the upper part of the drainage board; Step 5): Lay non-woven fabric along the outer surface of the outer ditch wall to the top surface of the drainage board to the surface of the base layer; Step 6): laying gravel on the non-woven fabric to form a gravel layer; Step 7): Paint the bottom of the drainage ditch to form a cement mortar leveling layer, so that inclined drainage channel openings are formed between the two ends of the cement mortar leveling layer and the drainage board.

[0010] Furthermore, in the step 7), a foam strip with a diameter of 30 mm is first buried at each of the channel openings near the drainage boards at both ends, and then the ditch wall and ditch bottom are painted with cement mortar. After the painting is completed, the foam strip is removed before the cement mortar is completely dry, and finally a 135° angle puller is used to process the closing after the foam strip is removed.

[0011] The present invention arranges a drainage board at the bottom of the ditch wall of the drainage ditch, which greatly improves the drainage effect and avoids the problem of water accumulation on the floor surface caused by untimely drainage; the design of the concave-convex drainage board can effectively guide the seepage water into the drainage ditch even if part of the drainage channel on the drainage board is blocked, thereby ensuring the overall reliability and sustainability of the drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of the basement drainage ditch drainage structure in the embodiment.

[0013] Reference numerals: 1. Base layer; 2. Wall; 3. Ditch wall; 4. Drainage ditch; 5. Drainage board; 6. Round boss; 7. Non-woven fabric; 8. Gravel layer; 9. Cement mortar leveling layer; 10. Drainage channel opening. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0015] This embodiment discloses a basement drainage ditch drainage structure, such as Figure 1As shown, the drainage ditch 4 is arranged along the wall 2 of the basement, and the drainage ditch 4 is connected to the water collection well. The ditch wall 3 on one side of the drainage ditch 4 fits the wall 2 of the basement, and a drainage board 5 with a height of 30 mm is provided at the bottom of each side of the ditch wall 3. The drainage board 5 in this embodiment adopts a drainage board with a height of 30 mm and concave and convex water-permeable holes. Round bosses 6 are arranged at intervals at the bottom of the drainage board 5, and the lower part of the drainage board 5 is a reinforced concrete base 1. A crushed stone layer 8 is arranged on the outer side of the ditch wall 3 away from the side of the wall 2. The height of the crushed stone layer 8 is lower than the height of the ditch wall 3. The crushed stone layer 8 in this embodiment is paved with graded crushed stones with a maximum particle size of not more than 30 mm to ensure better water permeability. When the drain board 5 is set, the water-permeable holes on the drain board 5 are connected with the drain ditch 4 and the gravel layer 8, so that one side of the round boss 6 faces downward, so as to facilitate the drainage of water that penetrates from the gravel layer 8 into the drain ditch 4. The side end surface of the drain board 5 is flush with the ditch wall 3. The drain board 5 on the side adjacent to the gravel layer 8 extends from the bottom of the ditch wall 3 to the gravel layer 8 to form an extension section. The length of the extension section is 200mm. The extension section extends below the gravel layer 8, which can better drain the water that penetrates from the gravel layer 8 to the drain ditch 4. In order to prevent the gravel and impurities in the gravel layer 8 from clogging the drainage channel at the bottom of the drain board 5, the non-woven fabric 7 is laid along the outer surface of the ditch wall 3 adjacent to the gravel layer 8, to the top surface of the extension section of the drain board 5, and to the surface of the base layer 1 outside the drain board 5 in this embodiment. The non-woven fabric 7 is made of polyester non-woven fabric, and it meets ≥100g / m during laying. 2 , the gravel layer 8 is located on the upper part of the non-woven fabric 7.

[0016] A 20 mm thick cement mortar leveling layer 9 is formed at the bottom of the drainage ditch 4 by painting. A gap is formed between the two ends of the cement mortar leveling layer 9 and the drainage board 5 on the corresponding side. The gap serves as a drainage channel opening 10. The drainage channel openings 10 on both sides of the cement mortar leveling layer 9 are both inclined, and the inclination direction is inclined towards each other, forming an inclination angle of 45°, which is convenient for the later cleaning of sediment, ensuring the long-term effective operation of the drainage system, and making the drainage drainage more efficient.

[0017] The construction method of the basement drainage ditch drainage structure given above includes the following steps: Step 1): Clean the surface of the basement 1 of the basement, remove the slurry and garbage in the construction area of ​​the drainage ditch 4, chisel out the local raised parts, and grout the leaking parts; Step 2): Stake out the drainage ditch 4 and lay out the position line of the drainage ditch 4 on the ground according to the layout drawing of the drainage ditch 4; Step 3): Laying of the drain board 5: According to the requirements of the drawing, cut the whole drain board 5 according to the design size. When laying, make sure that the round protrusion 6 of the drain board 5 faces downward and lay it flatly on the bottom of the ditch wall 3 of the drainage ditch 4, so that the edge of the drain board 5 is aligned with the inner position line of the ditch wall 3. During the laying process, it is necessary to pay attention to the connection and splicing between the drain boards 5 to ensure that they are neat and seamless to achieve the best drainage effect; Step 4): Formwork casting of the ditch wall 3: According to the position line of the drainage ditch 4 laid out, the formwork is supported and reinforced on the upper part of the drainage board 5. The formwork must be installed firmly to ensure that it does not shift or deform during the casting process. After the formwork reinforcement is completed, fine stone concrete is cast to form the ditch wall 3 of the drainage ditch 4; Step 5): Laying non-woven fabric 7: Lay non-woven fabric 7 along the outer surface of the ditch wall 3 outside the drainage ditch 4 to the top surface of the drainage board 5 to the surface of the base layer 1. During the laying process, one side of the non-woven fabric 7 should be flush with the junction of the drainage board 5 and the gravel layer 8; Step 6): laying crushed stones to form a crushed stone layer 8: laying crushed stones evenly on the non-woven fabric 7 to press the non-woven fabric 7 to form a crushed stone layer 8 whose height is lower than the trench wall 3; Step 7): Paint the drainage ditch 4: first bury a foam strip with a diameter of 30mm at the channel opening near the drainage boards 5 at both ends, and then use cement mortar to paint the ditch wall 3 and the ditch bottom. After the painting is completed, remove the foam strip before the cement mortar at the bottom of the ditch is completely dry to form a gap. Finally, use a 135° angle puller to process the gap to form a hydrophobic channel opening with a 45° inclination angle.

[0018] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A basement drainage ditch drainage structure, characterized in that: The utility model comprises a drainage ditch, a drainage board, a non-woven fabric and a gravel layer. The ditch wall on one side of the drainage ditch is arranged to fit the wall of the basement in a circle. The gravel layer is arranged on the outside of the ditch wall on the other side of the drainage ditch. The height of the gravel layer is lower than the height of the ditch wall. The drainage ditch is connected to a water collection well. Drain boards are respectively arranged at the bottom of the ditch walls on both sides of the drainage ditch. The lower part of the drainage board is the basement of the basement. The drainage board adopts a concave-convex drainage board. The bottom of the drainage board forms a circular boss at intervals. The circular boss faces one side of the basement. The drainage board on the side adjacent to the gravel layer extends from the bottom of the ditch wall of the drainage ditch to the gravel layer to form an extended section. Non-woven fabric is laid along the outer surface of the ditch wall adjacent to the gravel layer to the top surface of the extended section of the drainage board to the basement surface outside the drainage board. The gravel layer is located on the upper part of the non-woven fabric. The holes on the drainage board connect the drainage ditch and the gravel layer. The side end face of the drainage board is flush with the ditch wall of the drainage ditch. A cement mortar leveling layer is formed at the bottom of the drainage ditch. A notch with an inclined angle is formed between the two ends of the cement mortar leveling layer and the drainage board on the corresponding side. The notch serves as a drainage channel opening.

2. A basement drainage ditch drainage structure according to claim 1, characterized in that: The non-woven fabric is made of polyester non-woven fabric, and when laid, it meets the requirements of ≥100g / m 2 .

3. A basement drainage ditch drainage structure according to claim 1, characterized in that: The crushed stone layer uses graded crushed stone with a maximum particle size not greater than 30 mm.

4. A basement drainage ditch drainage structure according to claim 1, characterized in that: The height of the drainage board is 30 mm.

5. The basement drainage ditch drainage structure according to claim 1, characterized in that: The extended section length of the drainage board is 200 mm.

6. A basement drainage ditch drainage structure according to claim 1, characterized in that: The inclination angle of the hydrophobic channel opening is 45°.

7. The construction method of the basement drainage ditch drainage structure according to any one of claims 1 to 6, characterized in that: The steps include: Step 1): Clean the base surface of the basement; Step 2): Stake out the drainage ditch; Step 3): Laying of drainage board; Step 4): Forming and pouring the drainage ditch wall on the upper part of the drainage board; Step 5): Lay non-woven fabric along the outer surface of the outer ditch wall to the top surface of the drainage board to the surface of the base layer; Step 6): laying gravel on the non-woven fabric to form a gravel layer; Step 7): Paint the bottom of the drainage ditch to form a cement mortar leveling layer, so that inclined drainage channel openings are formed between the two ends of the cement mortar leveling layer and the drainage board.

8. The construction method of the basement drainage ditch drainage structure according to claim 7, characterized in that: In the step 7), a foam strip with a diameter of 30 mm is first buried at the channel opening near the drainage boards at both ends, and then the ditch wall and ditch bottom are painted with cement mortar. After the painting is completed, the foam strip is removed before the cement mortar is completely dry, and finally a 135° angle puller is used to process the closing after the foam strip is removed.

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