Pile head waterproof structure

Abstract

The utility model relates to waterproof structure technical field discloses pile head waterproof structure, including concrete cushion, the pile body that extends from concrete cushion upwards and the locating reinforcement that extends from the pile body upwards, the first waterproof layer is covered on the pile body, and the contact position of first waterproof layer's both ends with concrete cushion and concrete cushion surface extend outward along, the top of concrete cushion is provided with second waterproof layer, and the junction position of second waterproof layer and first waterproof layer is provided with third waterproof layer, and the composite waterproof structure that the first waterproof layer, second waterproof layer and third waterproof layer are composed can guarantee the waterproof sealing effect of the junction of pile body surface, concrete cushion and pile body and concrete cushion well.

Description

Technical Field

[0001] This utility model patent relates to the field of waterproof structure technology, and more specifically, to a waterproof structure for pile heads. Background Technology

[0002] The current conventional method for treating pile heads is to apply a cement-based penetrating crystalline waterproof coating to the pile head, extending 300mm up to the subbase. The waterproof membrane and the cement-based penetrating crystalline coating overlap on the subbase. For modified bitumen membranes and penetrating crystalline coatings, the membrane needs to be heat-fused to the penetrating crystalline coating, the membrane is laid to the base of the pile head, and then the edges are sealed with asphalt oil or sealant. Pre-laid P-type membrane and penetrating crystallizer overlap require mechanical fixing or loose laying with the membrane overlapping the penetrating crystallizer. The membrane is then laid to the pile head root and sealed with waterproof mortar. If mechanical fixing is used for the overlap of the pre-laid P-type membrane and penetrating crystallizer, the nails will directly penetrate and damage the penetrating crystallizer layer. If cement slurry is used to seal the pile head root, the slurry will crack after application; if it is too thin, it will not be effective. If waterproof mortar is used, it may also crack if it is too thick. The membrane covered by the waterproof mortar layer and the pile head sidewall are difficult to bond together to form a whole, resulting in a poor sealing effect. Utility Model Content

[0003] The purpose of this utility model is to provide a waterproof structure for pile heads, which aims to solve the problem that the sealing effect at the overlap of waterproof membrane and penetrating crystallizing coating layer is generally poor in the prior art.

[0004] This utility model is implemented as follows: a waterproof structure for pile heads includes a concrete cushion layer, a pile extending upward from the concrete cushion layer, and positioning steel bars extending upward from the pile body. The pile body is covered with a first waterproof layer, and the two ends of the first waterproof layer extend outward along the surface of the concrete cushion layer from the contact position between the pile body and the concrete cushion layer. A second waterproof layer is provided on the top of the concrete cushion layer, and a third waterproof layer is provided at the junction of the second waterproof layer and the first waterproof layer.

[0005] Preferably, the first waterproof layer is a penetrating crystalline coating layer, the second waterproof layer is a waterproof membrane layer, and the third waterproof layer is a rubber asphalt waterproof coating layer.

[0006] Preferably, the penetrating crystallizing coating layer is applied by rubbing with a stiff-bristled brush.

[0007] Preferably, the waterproof membrane layer near the pile body covers the extension of the penetrating crystalline coating layer.

[0008] Preferably, the penetrating crystalline coating layer extends 250mm outwards from the junction of the pile body and the concrete cushion layer.

[0009] Preferably, the application rate of the penetrating crystallizing coating layer is 1.5 kg / m².

[0010] Preferably, the thickness of the penetrating crystallizing coating layer is 1.0 mm.

[0011] Preferably, a water-stop sealant layer is provided near the root of the positioning steel bar, and the water-stop sealant layer is tightly attached to the top of the pile and the outer side of the positioning steel bar.

[0012] Preferably, the rubber asphalt waterproof coating layer is provided around the circular gap formed between the penetrating crystallizing coating layer and the waterproof membrane layer.

[0013] Preferably, the rubber asphalt waterproof coating layer extends from the junction of the penetrating crystallizing coating layer and the waterproof membrane layer toward the pile surface and the concrete cushion layer, respectively.

[0014] Compared with the prior art, the pile head waterproofing structure provided by this utility model, through a composite waterproofing structure consisting of a first waterproofing layer, a second waterproofing layer and a third waterproofing layer, can effectively ensure the waterproofing and sealing effect of the pile surface, the concrete cushion layer and the junction between the pile and the concrete cushion layer. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of the pile body, penetrating crystallizing coating layer, and waterproof membrane layer of the pile head waterproof structure provided by this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Pile body; 2. Positioning reinforcement; 3. Penetrating crystalline coating layer; 4. Waterproof membrane layer; 5. Rubber asphalt waterproof coating layer; 6. Reinforced concrete base slab structure layer; 7. Water-stop sealant layer; 8. Concrete cushion layer. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0019] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0020] Reference Figure 1 The image shown is a preferred embodiment of the present invention.

[0021] The pile head waterproofing structure includes a concrete cushion layer 8, a pile body 1 extending upward from the concrete cushion layer 8, and a positioning steel bar 2 extending upward from the pile body 1. The pile body 1 is covered with a first waterproof layer. The two ends of the first waterproof layer extend outward along the surface of the concrete cushion layer 8 from the contact position between the pile body 1 and the concrete cushion layer 8. A second waterproof layer is provided on the top of the concrete cushion layer 8, and a third waterproof layer is provided at the junction of the second waterproof layer and the first waterproof layer.

[0022] The composite waterproof structure consisting of the first waterproof layer, the second waterproof layer and the third waterproof layer can effectively ensure the waterproof sealing effect of the surface of the pile body 1, the concrete cushion layer 8 and the junction between the pile body 1 and the concrete cushion layer 8.

[0023] Specifically, in this embodiment, the first waterproof layer is a penetrating crystalline coating layer 3, the second waterproof layer is a waterproof membrane layer 4, and the third waterproof layer is a rubber asphalt waterproof coating layer 5.

[0024] Specifically, in this embodiment, the penetrating crystalline coating layer 3 is applied by rubbing with a stiff brush, which allows the penetrating coating layer to bond tightly with the concrete on the surface of the pile body 1.

[0025] Specifically, in this embodiment, the waterproof membrane layer 4 near the pile body 1 covers the extension of the penetrating crystalline coating layer 3, which can effectively ensure the waterproofness between the pile body 1 and the concrete cushion layer 8.

[0026] Specifically, in this embodiment, the penetrating crystalline coating layer 3 extends 250mm outward from the junction of the pile body 1 and the concrete cushion layer 8, which can effectively ensure the waterproofing effect of the concrete cushion layer 8 around the pile body 1.

[0027] Specifically, in this embodiment, the application rate of the penetrating crystalline coating layer 3 is 1.5 kg / m², and the film thickness of the penetrating crystalline coating layer 3 is 1.0 mm, which can ensure that the penetrating crystalline coating layer 3 provides good waterproof performance for the pile body 1 and the concrete cushion layer 8 around the pile body 1.

[0028] Specifically, in this embodiment, a water-stop sealant layer 7 is provided at the root of the positioning steel bar 2 near the pile body 1, and the water-stop sealant layer 7 is closely attached to the top of the pile body 1 and the outer side of the positioning steel bar 2.

[0029] By setting the waterproof sealant layer 7, the waterproof effect at the contact point between the positioning steel bar 2 and the pile body 1 can be guaranteed.

[0030] Specifically, in this embodiment, the rubber asphalt waterproof coating layer 5 is set around the circular gap formed between the penetrating crystallizing coating layer 3 and the waterproof membrane layer 4, and the rubber asphalt waterproof coating layer 5 extends from the junction of the penetrating crystallizing coating layer 3 and the waterproof membrane layer 4 towards the surface of the pile body 1 and the concrete cushion layer 8 respectively.

[0031] Rubber asphalt waterproof coating can further improve the waterproofness and sealing of the joint between the penetrating crystalline coating layer 3 and the waterproof membrane layer 4.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

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