Waterproof structure of prestressed pipe pile head

Abstract

The utility model discloses a prestressed pipe pile head waterproof structure which comprises a cement waterproof layer covering the surface of a pile head body, a bottom waterproof coiled material laid on the top of a concrete base layer, a side waterproof coiled material laid on the outer vertical face of the cement waterproof layer and a top waterproof coiled material laid on the top surface of the cement waterproof layer. The edge of the top waterproof coiled material is bent downwards and covers the side waterproof coiled materials on the inner side, and weather-proof glue A is arranged between the side waterproof coiled materials and the top waterproof coiled material. According to the prestressed pipe pile head waterproof structure, a prestressed pipe pile head waterproof structure in the prior art is improved and optimized, the top waterproof coiled material with the downward folded edge and the annular protrusion are designed, the top end and the bottom end of the side waterproof coiled material can be effectively wrapped and sealed, the waterproof effect is further improved, water seepage is prevented, and the service life of the prestressed pipe pile head waterproof structure is prolonged. Meanwhile, structures such as a protective clamping sleeve are designed, the sealing performance of the penetrating position of the top end of the pile core steel bar can be guaranteed, and the waterproof effect of the whole prestressed pipe pile head is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of prestressed pipe piles, and particularly relates to a waterproof structure for the pile head of a prestressed pipe pile. Background Technique

[0002] A prestressed pipe pile is a slender cylindrical precast concrete member made by the pretensioning prestressing process and the centrifugal molding method. It mainly consists of a cylindrical pile body, an end plate, a steel sleeve hoop, etc. In order to waterproof the pile head part of the prestressed pipe pile, a waterproof structure is designed at the pile head of the prestressed pipe pile. For example, in the existing patent with the publication number CN211312492U, the "a waterproof structure for the pile head of a prestressed pipe pile, which relates to the field of building waterproofing and is applied to the pile head of a pipe pile to solve the waterproof problem of the pile head of the pipe pile. The prestressed pipe pile includes a pile head body, a concrete base plate, and pile core steel bars. The pile head body protrudes from the upper surface of the concrete base plate, and the pile core steel bars are evenly inserted inside the pile head body and integrally formed with the pile head body. The waterproof structure for the pile head of the prestressed pipe pile includes a side waterproof coiled material and a bottom waterproof coiled material", it can be seen that what is described in this application is exactly a common waterproof structure for the pile head of a prestressed pipe pile;

[0003] In the actual application of the waterproof structure for the pile head of the prestressed pipe pile in the prior art, there is no well-designed sealing structure between the side waterproof coiled material and the bottom waterproof coiled material, resulting in poor sealing performance at the connection between the two, reducing the waterproof effect. At the same time, no effective wrapping waterproof measures are taken at the top end of the side waterproof coiled material, and there is room for improvement. Therefore, the utility model provides a waterproof structure for the pile head of a prestressed pipe pile. Content of the Utility Model

[0004] The purpose of the utility model is to provide a waterproof structure for the pile head of a prestressed pipe pile to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A waterproof structure for the pile head of a prestressed pipe pile, including

[0006] A cement waterproof layer covering the surface of the pile head main body, a bottom waterproof coiled material laid on the top of the concrete base layer, a side waterproof coiled material laid on the outer facade of the cement waterproof layer, and a top waterproof coiled material laid on the top surface of the cement waterproof layer;

[0007] The edge of the top waterproof coiled material is bent downward to cover the side waterproof coiled material inside, and weather-resistant glue A is provided between the side waterproof coiled material and the top waterproof coiled material;

[0008] A circular protrusion provided on the top surface of the bottom waterproof coiled material, the bottom end of the side waterproof coiled material is inserted into the circular protrusion, and weather-resistant glue B is provided between the side waterproof coiled material and the circular protrusion.

[0009] It further includes a protective sleeve sleeved on the surface of the pile core steel bars, and the protective sleeve is in contact with the top surface of the top waterproof coiled material.

[0010] Preferably, structural adhesive is provided on the top surface of the top waterproof coiled material relative to the penetration of the pile core steel bars, and an annular inner groove corresponding to the structural adhesive is formed on the bottom surface of the protective sleeve.

[0011] Preferably, an integral annular lower protrusion is provided on the bottom surface of the protective sleeve, an annular top groove corresponding to the annular lower protrusion is formed on the top surface of the top waterproof coiled material, the annular lower protrusion is squeezed into the annular top groove, an integral annular inner protrusion is provided on the inner wall of the protective sleeve, and an annular side groove corresponding to the annular inner protrusion is formed on the surface of the pile core steel bars, and the annular inner protrusion is squeezed into the annular side groove.

[0012] Preferably, annular glue grooves are formed on the outer wall of the bottom end of the side waterproof coiled material and the inner wall of the annular protrusion, and annular glue grooves are formed on the outer wall of the top end of the side waterproof coiled material and the inner wall of the bottom end of the top waterproof coiled material.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: By improving and optimizing the waterproof structure of the prestressed pipe pile pile head in the prior art, through designing the top waterproof coiled material with a downward folded edge and the annular protrusion, the top end and the bottom end of the side waterproof coiled material can be effectively wrapped and sealed, further improving the waterproof effect and preventing water seepage. At the same time, structures such as the protective sleeve are designed to ensure the sealing performance at the penetration of the top end of the pile core steel bars, enhancing the waterproof effect of the entire prestressed pipe pile pile head. Description of the Drawings

[0014] Figure 1 is a sectional view of the present utility model;

[0015] Figure 2 is the present utility model Figure 1 a partial enlarged view of area A therein;

[0016] Figure 3 is the present utility model Figure 1 a partial enlarged view of area B therein;

[0017] Figure 4 is the present utility model Figure 1 a partial enlarged view of area C therein;

[0018] In the figure: 1. Bottom waterproof coiled material; 2. Cement waterproof layer; 3. Side waterproof coiled material; 4. Top waterproof coiled material; 41. Annular top groove; 5. Protective sleeve; 51. Annular inner groove; 52. Annular lower protrusion; 53. Annular inner protrusion; 6. Concrete base layer; 7. Pile head main body; 8. Pile core steel bars; 81. Annular side groove; 9. Weather-resistant glue A; 10. Weather-resistant glue B; 11. Annular protrusion; 12. Structural glue. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0020] Please refer to Figures 1 to 4 , which is an embodiment of the present invention. This embodiment provides a technical solution: a waterproof structure for the pile head of a prestressed pipe pile, including

[0021] a cement waterproof layer 2 covering the surface of the pile head main body 7, a bottom waterproof coiled material 1 laid on the top of the concrete base layer 6, a side waterproof coiled material 3 laid on the outer surface of the cement waterproof layer 2, and a top waterproof coiled material 4 laid on the top surface of the cement waterproof layer 2. The bottom waterproof coiled material 1, the side waterproof coiled material 3, and the top waterproof coiled material 4 are all asphalt waterproof coiled materials;

[0022] The edge of the top waterproof coiled material 4 is bent downward to cover the side waterproof coiled material 3 inside. A weather-resistant glue A9 is provided between the side waterproof coiled material 3 and the top waterproof coiled material 4 to ensure that the top end of the side waterproof coiled material 3 is effectively covered inside, and the weather-resistant glue A9 can ensure the sealing performance at the top end of the side waterproof coiled material 3 to prevent water seepage;

[0023] An annular protrusion 11 is provided on the top surface of the bottom waterproof coiled material 1. The bottom end of the side waterproof coiled material 3 is inserted into the annular protrusion 11, and a weather-resistant glue B10 is provided between the side waterproof coiled material 3 and the annular protrusion 11 to effectively wrap the bottom end of the side waterproof coiled material 3 inside, and the weather-resistant glue B10 can effectively improve the sealing performance at the bottom end of the side waterproof coiled material 3 to further prevent water seepage.

[0024] It further includes a protective sleeve 5 sleeved and installed on the surface of the pile core steel bar 8, and the protective sleeve 5 is in contact with the top surface of the top waterproof coiled material 4 for waterproof sealing at the penetration of the pile core steel bar 8. A structural adhesive 12 is provided on the top surface of the top waterproof coiled material 4 relative to the penetration of the pile core steel bar 8. An annular inner groove 51 corresponding to the structural adhesive 12 is formed on the bottom surface of the protective sleeve 5, so that the protective sleeve 5 can be firmly bonded to the top of the top waterproof coiled material 4 through the structural adhesive 12 and wrap the pile core steel bar 8. The annular inner groove 51 here is designed to accommodate a certain amount of the structural adhesive 12.

[0025] Among them, an integral annular lower protrusion 52 is provided on the bottom surface of the protective sleeve 5. The protective sleeve 5, the annular inner groove 51 and the annular lower protrusion 52 are all made of fluororubber material and will undergo elastic deformation when being extruded. An annular top groove 41 corresponding to the annular lower protrusion 52 is formed on the top surface of the top waterproof coiled material 4. The annular lower protrusion 52 is extruded into the annular top groove 41 to improve the sealing performance at the joint of the protective sleeve 5 and the top waterproof coiled material 4. An integral annular inner protrusion 53 is provided on the inner wall of the protective sleeve 5, and an annular side groove 81 corresponding to the annular inner protrusion 53 is formed on the surface of the pile core steel bar 8. The annular inner protrusion 53 is extruded into the annular side groove 81 to improve the sealing performance at the joint of the protective sleeve 5 and the pile core steel bar 8.

[0026] Among them, annular glue grooves are formed on the outer wall of the bottom end of the side waterproof coiled material 3 and the inner wall of the annular protrusion 11, which can accommodate a certain amount of weather-resistant glue B10. Annular glue grooves are formed on the outer wall of the top end of the side waterproof coiled material 3 and the inner wall of the bottom end of the top waterproof coiled material 4, which can accommodate a certain amount of weather-resistant glue A9.

[0027] Although the embodiments of the present invention have been shown and described (see the above detailed description), for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prestressed pipe pile head waterproof structure, characterized by: include A cement waterproof layer (2) covering the surface of the pile head body (7), a bottom waterproof roll (1) laid on the top of the concrete base (6), a side waterproof roll (3) laid on the outer facade of the cement waterproof layer (2), and a top waterproof roll (4) laid on the top surface of the cement waterproof layer (2); The edge of the top waterproof roll (4) is bent downward and covers the side waterproof roll (3) inside, and a weather-resistant glue A (9) is provided between the side waterproof roll (3) and the top waterproof roll (4); An annular protrusion (11) is provided on the top surface of the bottom waterproofing coiled material (1), the bottom end of the side waterproofing coiled material (3) is inserted into the annular protrusion (11), and a weather-resistant adhesive B (10) is provided between the side waterproofing coiled material (3) and the annular protrusion (11).

2. A prestressed pipe pile head waterproof structure according to claim 1, characterized in that: It also includes a protective sleeve (5) sleeved and installed on the surface of the pile core steel bar (8), and the protective sleeve (5) is in contact with the top surface of the top waterproof coiled material (4).

3. A prestressed pipe pile head waterproof structure according to claim 2, characterized in that: A structural adhesive (12) is provided on the top surface of the top waterproof coiled material (4) at a position where the pile core steel bar (8) penetrates, and an annular inner groove (51) corresponding to the structural adhesive (12) is provided on the bottom surface of the protective sleeve (5).

4. The prestressed pipe pile head waterproof structure according to claim 2, characterized in that: The bottom surface of the protective sleeve (5) is provided with an integrated annular lower protrusion (52), and the top surface of the top waterproof coiled material (4) is provided with an annular top groove (41) corresponding to the annular lower protrusion (52), and the annular lower protrusion (52) is squeezed into the annular top groove (41).

5. The prestressed pipe pile head waterproof structure according to claim 2, characterized in that: The inner wall of the protective sleeve (5) is provided with an integrated annular inner protrusion (53), and the surface of the pile core steel bar (8) is provided with an annular side groove (81) corresponding to the annular inner protrusion (53), and the annular inner protrusion (53) is squeezed into the annular side groove (81).

6. The prestressed pipe pile head waterproof structure according to claim 1, characterized in that: An annular glue groove is provided on the outer wall of the bottom end of the side waterproof coiled material (3) and the inner wall of the annular protrusion (11).

7. The prestressed pipe pile head waterproof structure according to claim 1, characterized in that: The top outer wall of the side waterproofing coiled material (3) and the bottom inner wall of the top waterproofing coiled material (4) are both provided with an annular glue groove.

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