Waterproof structure for top node of pre-stressed anchor cable

Abstract

The utility model discloses a pre-stressed anchor cable top node waterproof structure which comprises an anchorage device cap protector (2) fixed at the top of an anchor plate (1), a water guide groove (3), a water filter pipe (4) and a filter component, the anchorage device cap protector (2) is arranged on an original sealing anchor plate (8) in a wrapping mode, the water guide groove (3) is formed in a basement bottom plate (12) on the periphery of the anchor plate (1) in an excavating mode, and the water filter pipe (4) is arranged on the basement bottom plate (12). The water filtering pipe (4) is embedded in the water guiding groove (3), water filtering holes (11) are formed in the water filtering pipe (4), a gap between the water filtering pipe (4) and the water guiding groove (3) is filled with a filtering part, a dredging and blocking combined anti-seepage structure is adopted, drainage is guided, and the purpose that a basement building surface layer is free of leakage is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering construction, and more specifically to a waterproof structure of a top node of a prestressed anchor cable. Background Art

[0002] During the construction of prestressed anti-floating anchor cables for the basement floor, the anti-floating anchor rods need to pass through the waterproof layer of the foundation floor and then be anchored to the floor, and are distributed in large quantities in a grid shape at a certain interval on the plane of the foundation floor, which destroys the integrity of the waterproof layer of the foundation floor. According to traditional construction technology, after the anti-floating anchor rods are tensioned, cut and sealed, there are no other drainage treatment measures for the top nodes of the anchor rods. The tensioning force of the anchor cable during the prestressing tensioning process may cause slight sliding between the floor structure and the steel casing, water stop ring, grouting pipe, slurry, etc., which can easily cause leakage risks of the structural floor, which not only affects the use function of the house, but also makes maintenance difficult and costly. Therefore, it is necessary to provide a node waterproof structure that reduces the leakage risks at the top nodes of the prestressed anti-floating anchor rods. Utility Model Content

[0003] In view of the above defects or improvement needs of the prior art, the utility model provides a waterproof structure for the top node of a prestressed anchor cable, which adopts a combination of an anchor cap, a water guide pipe and a filter trough to prevent leakage, blockage and drainage, and effectively organize groundwater to enter the basement floor along the anchor rod.

[0004] In order to achieve the above-mentioned purpose, according to the utility model, a prestressed anchor cable top node waterproof structure is provided, including an anchor cap protection fixed to the top of the anchor plate, a water guide groove, a water filter pipe and a filter component, the anchor cap protection package is arranged on the original anchor plate, the water guide groove is excavated on the basement floor around the anchor plate, the water filter pipe is buried in the water guide groove, the water filter hole is opened on the water filter pipe, and the gap between the water filter pipe and the water guide groove is filled with a filter component.

[0005] Furthermore, it comprises a geo-nonwoven fabric, wherein the geo-nonwoven fabric covers the water channel, and the geo-nonwoven fabric is fixedly connected to the basement floor.

[0006] Furthermore, the anchor cap protection includes a cap and grouting material, the cap is buckled on the original anchor plate, the cap is welded and fixed to the anchor plate, and the grouting material is injected into the cap to be tightly fixed.

[0007] Furthermore, the cap includes a cap body and a steel cover plate, the cap body is a seamless steel pipe, the diameter of the steel cover plate is larger than the cap body, the steel cover plate is fully welded to the upper end of the cap body, the bottom of the cap body is fully welded to the anchor plate, and a grouting hole is set in the center of the steel cover plate.

[0008] Furthermore, the grouting material is H40 concrete.

[0009] Furthermore, the cap and the anchor plate are painted with anti-rust paint and asphalt.

[0010] Furthermore, it comprises a drainage ditch, which is arranged on the basement floor, and the water guide trough and the water filter pipe are respectively connected in series to the drainage ditch.

[0011] Furthermore, the filtering component is a pebble.

[0012] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0013] (1) The utility model provides a waterproof structure for the top node of a prestressed anchor cable. The anchor cap is fixed on the anchor plate for protection, and the original anchor plate is tightly wrapped to achieve waterproof leakage. At the same time, a water guide trough and a water filter pipe are connected in series to a drainage ditch to guide and discharge groundwater. Anti-blocking measures are provided between the water filter pipe and the water guide trough, that is, pebbles are used to fill the gap, and geotextile non-woven fabrics are laid on the top of the water guide trough. A seepage-proof structure combining dredging and blocking is adopted, and drainage is guided at the same time, which can effectively prevent groundwater from entering the basement floor along the anchor rod, thereby achieving the purpose of no leakage in the basement building surface layer.

[0014] (2) The utility model provides a waterproof structure for the top node of a prestressed anchor cable, which achieves good sealing and waterproof protection by arranging a waterproof coating and a steel cap at the top node of the anchor rod and pouring grouting material into the cap for dense fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a longitudinal cross-sectional view of a waterproof structure of a top node of a prestressed anchor cable according to an embodiment of the utility model;

[0016] Figure 2 This is a cross-sectional view of an anchor cap in a waterproof structure of a prestressed anchor cable top node according to an embodiment of the utility model;

[0017] Figure 3 It is a plan view of an anchor cap in a waterproof structure of a prestressed anchor cable top node according to an embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the plan layout of an anti-floating anchor rod water channel in a waterproof structure of a prestressed anchor cable top node according to an embodiment of the utility model;

[0019] Figure 5 This is a cross-sectional view of a water channel in a waterproof structure of a prestressed anchor cable top node according to an embodiment of the utility model;

[0020] Figure 6It is a schematic diagram of a filter pipe opening in a prestressed anchor cable top node waterproof structure according to an embodiment of the utility model.

[0021] In all the drawings, the same figure marks represent the same technical features, specifically: 1. anchor plate; 2. anchor cap protection; 3. water guide groove; 4. filter pipe; 5. cap; 6. cap body; 7. steel cover plate; 8. original anchor plate; 9. grouting hole; 10. grouting material; 11. filter hole; 12. basement floor; 13. drainage ditch; 14. collection well; 15. pebbles; 16. geononwoven fabric. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] like Figure 1-Figure 6 As shown, this embodiment provides a prestressed anchor cable top node waterproof structure, including an anchor cap protection 2 fixed to the top of the anchor plate 1, and a water guide 3 and a water filter 4 arranged around the anchor plate 1, wherein the anchor cap protection 2 is wrapped and arranged on the original anchor plate 8, and the anchor cap protection 2 includes a cap 5 and a grouting material 10, and the cap 5 is welded and fixed on the anchor plate 1, and the grouting material 10 is injected and fixed tightly, so as to play a sealing and protective role for the anchor and the anchor cable; the water guide 3 is excavated at the bottom of the basement around the anchor plate 1. The plate 12 is used to guide groundwater. The filter pipe 4 is buried in the water channel 3. The filter hole 11 is opened on the filter pipe 4, and the gap between the filter pipe 4 and the water channel 3 is filled with a filtering component. Preferably, pebbles with a diameter of less than 13 mm are used to filter impurities and prevent the water channel 3 from being blocked. This embodiment adopts an anti-seepage structure that combines dredging and blocking, combined with multiple measures of leak prevention, anti-blocking, and drainage, which can effectively prevent groundwater from entering the basement floor along the anchor rod, thereby achieving the purpose of no leakage in the basement building surface.

[0024] Furthermore, if Figure 5 and Figure 6 As shown, on the water filter pipe 4 used in this embodiment, water filter holes 11 with a diameter of 5 mm are opened at intervals of 100 mm. Preferably, the water filter holes 11 are arranged in a plum blossom shape, and the water filter pipe 4 adopts a 12ф32 PVC pipe.

[0025] Furthermore, if Figure 1 and Figure 2As shown, the present embodiment further includes a geononwoven fabric 16, which is covered with a 300 mm wide geononwoven fabric 16 above the water channel 3 and fixed to the basement floor 12 to prevent the concrete slurry from clogging the water channel 3 and the filter pipe 4 during pouring; further, a drainage ditch 13 is arranged on the basement floor 12, and the water channel 3 and the filter pipe 4 at different nodes are connected in series to the drainage ditch 13 respectively, and the groundwater is drained to the collection well 14 at the end of the drainage ditch 13, and finally the accumulated water is discharged by a lifting pump, so as to achieve the purpose of timely draining the accumulated water in the basement floor 12.

[0026] Furthermore, if Figure 1-Figure 3 As shown, the cap 5 includes a cap body 6 and a steel cover plate 7, wherein the cap body 6 is made of seamless steel pipe, the diameter of the steel cover plate 7 is larger than the cap body 6, the steel cover plate 7 is fully welded to the upper end of the cap body 6, the cap 5 is buckled on the original anchor plate 8, and the bottom of the cap body 6 is fully welded to the anchor plate 1; further, a grouting hole 9 is set in the center of the steel cover plate 7. After the cap 5 is welded, grouting material 10 is densely poured through the grouting hole 9 to prevent groundwater penetration and rust of the anchor.

[0027] Preferably, the overall height of the cap 5 is 70 mm; the size of the seamless steel pipe is determined according to the original anchor plate 8, and is 60 mm larger than the diameter of the original anchor plate 8; the cover plate 7 is 20 mm larger than the diameter of the seamless steel pipe and has a thickness of 5 mm; the diameter of the grouting hole 9 is 25 mm, and the grouting material 10 uses H40 concrete.

[0028] Furthermore, during the construction process, before welding the cap 5, the anchor head should be cleaned first, including the remaining water around the anchor head and the anchor plate, to ensure the welding working conditions, and then the prefabricated cap 5 should be fully welded to the center of the original anchor plate 8 of all anchor heads. After welding is completed, the weld condition needs to be checked to ensure complete sealing; after the grouting operation is completed, the anchor cap protection 2 is formed, and anti-rust paint and asphalt material are used to paint the cap 5 and the anchor plate 1 for rust and corrosion prevention.

[0029] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 present invention.

Claims

1. A prestressed anchor cable top node waterproof structure, characterized in that: The invention comprises an anchor cap protection (2) fixed on the top of an anchor plate (1), a water channel (3), a water filter pipe (4) and a filter component, wherein the anchor cap protection (2) is wrapped and arranged on the original anchor plate (8), the water channel (3) is excavated on the basement floor (12) around the anchor plate (1), the water filter pipe (4) is buried in the water channel (3), a water filter hole (11) is provided on the water filter pipe (4), and the gap between the water filter pipe (4) and the water channel (3) is filled with a filter component.

2. A prestressed anchor cable top node waterproof structure according to claim 1, characterized in that: It comprises a geotextile nonwoven fabric (16), wherein the geotextile nonwoven fabric (16) covers the water channel (3), and the geotextile nonwoven fabric (16) is fixedly connected to the basement floor (12).

3. According to the waterproof structure of the top node of the prestressed anchor cable described in claim 1, it is characterized in that: The anchor cap protection (2) comprises a cap (5) and a grouting material (10); the cap (5) is buckled onto the original anchor plate (8); the cap (5) is fixed to the anchor plate (1) by welding; and the grouting material (10) is injected into the cap (5) to be tightly fixed.

4. A prestressed anchor cable top node waterproof structure according to claim 3, characterized in that: The cap (5) comprises a cap body (6) and a steel cover plate (7), wherein the cap body (6) is a seamless steel pipe, the diameter of the steel cover plate (7) is larger than that of the cap body (6), the steel cover plate (7) is fully welded to the upper end of the cap body (6), the bottom of the cap body (6) is fully welded to the anchor plate (1), and a grouting hole (9) is provided at the center of the steel cover plate (7).

5. A prestressed anchor cable top node waterproof structure according to claim 3 or 4, characterized in that: The grouting material (10) is H40 concrete.

6. A prestressed anchor cable top node waterproof structure according to any one of claims 1-4, characterized in that: The cap (5) and the anchor plate (1) are painted with anti-rust paint and asphalt.

7. A prestressed anchor cable top node waterproof structure according to any one of claims 1 to 4, characterized in that: It comprises a drainage ditch (13), wherein the drainage ditch (13) is arranged on the basement floor (12), and the water guide groove (3) and the water filter pipe (4) are respectively connected in series to the drainage ditch (13).

8. The waterproof structure of the top node of the prestressed anchor cable according to claim 1, characterized in that: The filtering components are pebbles.

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