CN211312492U - Prestressed pipe pile head waterproof structure and pipe pile head - Google Patents
Prestressed pipe pile head waterproof structure and pipe pile head Download PDFInfo
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- CN211312492U CN211312492U CN201921954373.7U CN201921954373U CN211312492U CN 211312492 U CN211312492 U CN 211312492U CN 201921954373 U CN201921954373 U CN 201921954373U CN 211312492 U CN211312492 U CN 211312492U
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Abstract
The utility model discloses a prestressed pipe pile head waterproof construction relates to the building waterproof field, applies to pipe pile head in order to solve the waterproof problem of pipe pile head, prestressed pipe pile, including pile head body, concrete substrate, pile core reinforcing bar, pile head body protrusion in the upper surface of concrete substrate, pile core reinforcing bar evenly inserts inside the pile head body, with pile head body integrated into one piece, prestressed pipe pile head waterproof construction, including pile side waterproofing membrane, bottom plate waterproofing membrane; the bottom plate waterproof coiled material is laid on the upper surface of the concrete substrate; the pile side waterproof coiled material is provided with skirt angles; the pile side waterproof coiled material is laid around the outer vertical surface of the pile head body, and the skirt angle is lapped on the upper surface of the bottom plate waterproof coiled material; still disclose a tubular pile head, tubular pile head include foretell waterproof construction.
Description
Technical Field
The utility model relates to a building waterproof field, concretely relates to prestressing force tubular pile head waterproof construction and tubular pile head.
Background
Along with the continuous development of city construction, the construction of high-rise buildings and super high-rise buildings is more and more, the depth and the number of floors of basements are also continuously increased, the construction projects with underground civil air defense, underground shopping malls, underground parking lots and the like are more and more common, however, the leakage phenomena of the basements caused by the construction projects are increased, the quality of the construction projects is seriously influenced, and great inconvenience is brought to the normal use and management of the basements.
Therefore, foundation waterproofing is critical to the structure. The leakage of the foundation may cause many problems, so the waterproofing of the foundation is needed from the beginning, and particularly, the waterproofing effect of the foundation bearing platform and the pile head of the pipe pile is ensured.
According to the regulations of GB50108-2009 waterproof technical Specifications of underground engineering, the design, materials and process of pile head waterproofing have direct and important influence on the success or failure of underground engineering waterproofing, and due to the influence of the factors such as the existing technology and materials, the flexible outer-wrapped waterproof layer is arranged on the upstream surface of the bottom plate, so that reliable waterproofing is achieved, and the waterproof effect is absolutely not easy to achieve.
The construction method is characterized in that the bearing platform and the cushion layer are poured later, a construction joint is arranged between the pile head and the bearing platform and between the pile head and the cushion layer, and pressurized underground water enters the surface of the basement bottom plate through the construction joint between the cushion layer and the steel pipe wall of the pile head, so that the flexible waterproof layer arranged on the upstream surface of the bottom plate is difficult to reliably prevent water.
At present, the waterproof of the bottom plate mainly comprises waterproof coiled materials and concrete, and particularly shows a foundation form of a combined mode of piles and bearing platforms, the waterproof coiled materials at the pile head are very difficult to lay, pile core reinforcing steel bars are arranged in the piles, and in addition, the prefabricated piles need to carry out pile core reinforcing steel bar concrete recharging at the pile head, so that great hidden danger is brought to the waterproof quality of the bottom plate.
Among the prior art, chinese patent with application number CN201020684632.1 discloses "a prestressed pipe pile head just gentle waterproof construction that combines", this patent discloses a prestressed pipe pile head just gentle waterproof construction that combines, has laid self-adhesion waterproofing membrane as waterproof enhancement layer in pile head circumference facade and with the crossing plane corner of circumference facade waterproof enhancement layer lay self-adhesion waterproofing membrane layer and this self-adhesion waterproofing membrane layer fully spread at the crossing plane with pile head circumference facade as the waterproof layer on and pile head top surface on the waterproof layer scribble the cement base infiltration crystallization type waterproof coating slurry layer. The patent discloses a rigid-flexible combined waterproof structure of a prestressed pipe pile head, and the waterproof of the circumferential vertical surface of the pile head is a waterproof reinforcing layer which is easy to form a water channeling channel with a self-adhesive waterproof coiled material layer.
The Chinese patent with the application number of CN201110102530.3 discloses a waterproof method of a precast pile head, and the invention discloses a waterproof method of the precast pile head, which comprises the following steps: sleeving the pile head water stop belt into the pile head; breaking the inner ring of the pile head water stop, injecting an epoxy resin adhesive, bonding one wing of the pile head water stop on the outer wall of the pile head, and bonding the other wing of the pile head water stop on the cushion layer of the bottom plate; and paving a bottom plate waterproof coiled material on the cushion layer of the bottom plate, and welding or bonding the other wing of the pile head water stop belt on the bottom plate waterproof coiled material. According to the waterproof method, one wing of the pile head water stop is bonded on the outer wall of the pile head steel pipe, the other wing of the pile head water stop is bonded on the cushion layer of the pile head, and the other wing of the pile head water stop is welded or bonded on the bottom plate waterproof coiled material paved on the cushion layer, so that the waterproof layer of the pile head and the bottom plate waterproof coiled material are connected in a seamless mode, underground water is prevented from entering the surface of the basement bottom plate through the construction joint between the bottom plate and the outer wall of the pile head, and the waterproof reliability is improved.
Although the pile head water stop belt is sleeved into the pile head, the other wing of the pile head water stop belt is bonded on the cushion layer of the bottom plate; a bottom plate waterproof coiled material is laid on a cushion layer of the bottom plate, and a water channeling channel is easily formed between the pile head water stop belt and the seam of the bottom plate waterproof coiled material.
In the prior art, a pile head waterproof coiled material wraps the periphery of a reinforced concrete pile and extends to the surface of a concrete cushion layer around the reinforced concrete pile, the wrapped waterproof coiled material pile head is definitely required to be cut, slotted and overlapped at the periphery of the pile, and a water channeling channel is easily formed at the seam. The waterproof coiled material waterproof layer constructed on the peripheral side wall of the pile head is easy to form a gap with the concrete surface of the pile head, so that waterproof hidden danger is formed. And the waterproof coiled material layer of the pile head and the waterproof coiled material of the cushion layer on the bottom surface of the foundation bearing platform are not integrated, and the waterproof coiled material layer and the waterproof coiled material are waterproof hidden troubles.
The prior art has the following disadvantages: 1) the tubular pile coiled material is the cylinder, turns over on the coiled material and needs the cutting, and it is inconvenient that waterproofing membrane turns over to the construction of stake side on, 2) pile head negative and positive angle and tubular pile side facade all are waterproofing membrane overlap joint, and water-proof effects is not obvious, 3) pile core reinforcing bar water-proof effects is relatively poor, 4) the engineering time is longer.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem how to provide a wholly sealed prestressing force tubular pile head waterproof construction and tubular pile head.
The utility model discloses a solve above-mentioned technical problem through following technical scheme.
The utility model provides a prestressed pipe pile head waterproof construction, be applied to prestressed pipe pile, including pile head body, concrete substrate, stake core reinforcing bar, pile head body protrusion in the upper surface of concrete substrate, stake core reinforcing bar evenly insert inside the pile head body, with pile head body integrated into one piece; the pile head waterproof structure of the prestressed pipe pile comprises a pile side waterproof coiled material and a bottom plate waterproof coiled material; the bottom plate waterproof coiled material is laid on the upper surface of the concrete substrate; the pile side waterproof coiled material is provided with skirt angles; the pile side waterproof coiled material is laid around the outer vertical surface of the pile head body, and the skirt angle is lapped on the upper surface of the bottom plate waterproof coiled material.
Further, a prestressing force tubular pile head waterproof construction, still include cement base waterproof layer, cement base waterproof layer cover in the top surface of pile head body and outer facade all around.
Further, a prestressing force tubular pile head waterproof construction, still include the sealant, the sealant paint in the root of stake core reinforcing bar and the receipts mouth department of stake side waterproofing membrane and pile head body top surface external corner.
Furthermore, the bottom plate waterproof roll is provided with a hole matched with the cross section shape of the pile head body.
Furthermore, the skirt angle is a lapping block formed by cutting the pile side waterproof roll at intervals along the width direction.
Furthermore, the quantity of the pile side waterproof coiled materials is in one-to-one correspondence with that of the bottom plate waterproof coiled materials, and the pile side waterproof coiled materials and the bottom plate waterproof coiled materials are paved layer by layer in a staggered mode.
Furthermore, the pile side waterproof roll and the bottom plate waterproof roll are prefabricated finished products.
The utility model also provides a tubular pile head, tubular pile head include the waterproof construction of above-mentioned arbitrary tubular pile head.
The utility model has the advantages that:
1) the waterproof structure forms continuous sealing, a water channeling channel is not easy to form, the waterproof hidden danger is eliminated, and the whole waterproof effect is good.
2) The cement-based capillary crystalline waterproof material can penetrate into the deep layer of the concrete, fill capillary channels and pores and be permanently left in the concrete, so that the concrete is compact, water penetration is prevented, the effect of permanently sealing the concrete is achieved, and a complete closed waterproof layer is formed.
3) The root of the pile core steel bar is coated with sealing paste, so that the pile core steel bar has a flexible waterproof function; the external corner closing opening of the pile head body is sealed by waterproof coiled materials and sealing paste, so that the waterproof pile head has a double flexible waterproof function and a good waterproof effect.
4) The skirt angle of the waterproof roll material at the pile side is lapped on the waterproof roll material at the bottom plate, so that the waterproof roll materials can be continuously connected to form an integral waterproof structure; continuous sealing is not easy to form a water channeling channel, the waterproof hidden danger is eliminated, and the whole waterproof effect is good.
5) A plurality of waterproof coiled materials are adopted for carrying out multilayer hot melt lap joint, so that the whole sealing of the waterproof structure is tighter, and the waterproof effect is further improved; the corners and the pile sides are protected in a seamless mode by prefabricated coiled materials, and multiple complete waterproof layers are formed between the pile sides and the bottom plate.
6) Waterproofing membrane prefabricates in advance, makes the construction swift convenient, practices thrift the time limit for a project.
Drawings
Fig. 1 is a sectional view of a waterproof structure of a pile head of a prestressed pipe pile according to an embodiment of the present invention;
fig. 2 is a front view of a waterproof structure of a pile head of a prestressed pipe pile according to an embodiment of the present invention;
fig. 3 is the utility model discloses a top view of prestressing force tubular pile head waterproof construction's bottom plate waterproofing membrane.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention will be described in detail with reference to the accompanying drawings 1, 2 and 3 and the specific embodiments.
Example 1
As shown in fig. 1, the pile head waterproof structure of the prestressed pipe pile of the embodiment is applied to a prestressed pipe pile, the prestressed pipe pile comprises a pile head body 1, a concrete substrate 2 and pile core steel bars 3, the pile head body 1 protrudes out of the upper surface of the concrete substrate 2, and the pile core steel bars 3 are uniformly inserted into the pile head body 1 and are integrally formed with the pile head body 1; the pile head waterproof structure of the prestressed pipe pile comprises a pile side waterproof coiled material 5 and a bottom plate waterproof coiled material 6; the bottom plate waterproof roll 6 is laid on the upper surface of the concrete substrate 2; the pile side waterproof coiled material 5 is provided with a skirt angle 7; pile side waterproofing membrane 5 lays around the outer facade of pile head body 1, skirt angle 7 overlap joint on bottom plate waterproofing membrane 6's upper surface.
The waterproof structure forms continuous sealing, a water channeling channel is not easy to form, the waterproof hidden danger is eliminated, and the whole waterproof effect is good.
The waterproof structure of the pile head of the prestressed pipe pile further comprises a cement-based waterproof layer 4, and the cement-based waterproof layer 4 covers the top surface and peripheral outer vertical surfaces of the pile head body 1; the cement-based waterproof layer 4 is formed by uniformly coating a cement-based permeable crystalline waterproof material on a pile head base surface by using a bristle brush, wherein the coating is uniform and does not leak during coating; when the coating is carried out on the next layer, the coating is carried out when the previous layer is still in a wet state after initial setting, and if the coating is too dry, water is sprayed to wet the base surface. During the curing process, clean water is required and water spray type curing is used after initial setting, so that the coating is prevented from being damaged. Generally, water is sprayed for 3 times a day, the water is continuously sprayed for 2 to 3 days, and the water is sprayed for a plurality of times in hot days or dry weather, so that the coating is prevented from being dried prematurely.
The cement-based capillary crystalline waterproof material can penetrate into the deep layer of the concrete, fill capillary channels and pores and be permanently left in the concrete, so that the concrete is compact, water penetration is prevented, the effect of permanently sealing the concrete is achieved, and a complete closed waterproof layer is formed.
Prestressed pipe pile head waterproof construction still include sealant 8, sealant 8 paint in the root of stake core reinforcing bar 3 and the receipts mouth department of stake side waterproofing membrane 5 and 1 top surface external corner of pile head body. As shown in fig. 1, a waterproof sealant 8 is coated on the pile side waterproof coiled material 5 and the closing-up part of the external corner of the top surface of the pile head body 1, the width of the closing-up seal is 10mm to ensure the tightness of the waterproof coiled material, meanwhile, the periphery of the root of the pile core steel bar 3 is coated with the sealant 8, and the periphery of the root of the pile core steel bar 3 is coated with the sealant 8 and is in the shape of a circular arc with the width of 1cm and the height of 1 cm.
The root of the pile core steel bar is coated with sealing paste, so that the pile core steel bar has a flexible waterproof function; the external corner closing opening of the pile head body is sealed by waterproof coiled materials and sealing paste, so that the waterproof pile head has a double flexible waterproof function and a good waterproof effect.
The bottom plate waterproof coiled material 6 is provided with a hole matched with the cross section of the pile head body 1; as shown in fig. 3, the waterproof sheet 6 of the bottom plate is cut into holes matching with the cross section of the pile head body 1 along the circumference of the root of the pile head body 1, and the waterproof sheet 6 of the bottom plate is hot-melted and laid on the upper surface of the concrete substrate 2.
The skirt angle 7 is a lapping block formed by cutting the pile side waterproof roll 5 at intervals along the width direction; as shown in fig. 2, the waterproof roll 5 on the pile side is cut into waterproof rolls with the length of the perimeter of the pile body plus the lap width of 10 cm; the width of the waterproof coiled material 5 at the pile side is the sum of the height of the pile head and the length of the skirt angle 7; the length of the skirt angle is 10cm, and the skirt angle 7 is a lapping block formed by cutting the pile side waterproof coiled material 5 into cracks with the length of 10cm every 10cm along the width direction.
The skirt angle of the waterproof roll material at the pile side is lapped on the waterproof roll material at the bottom plate, so that the waterproof roll materials can be continuously connected to form an integral waterproof structure; continuous sealing is not easy to form a water channeling channel, the waterproof hidden danger is eliminated, and the whole waterproof effect is good.
The pile side waterproof coiled materials 5 and the bottom plate waterproof coiled materials 6 are in one-to-one correspondence in number and are laid layer by layer in a staggered manner; taking two waterproof rolls 5 at the pile side and two waterproof rolls 6 at the bottom plate respectively; laying a first waterproof coiled material, laying a first bottom plate waterproof coiled material 6 on the upper surface of the concrete substrate 2, then coating a sealing paste 8 along the joint of the bottom plate waterproof coiled material 6 and the internal corner of the root of the pile head body 1 for sealing, then laying a first pile side waterproof coiled material 5 on the whole peripheral vertical surface of the pile head body 1, and uniformly overlapping the skirt angle 7 of the pile side waterproof coiled material 5 on the upper surface of the bottom plate waterproof coiled material 6 along the periphery of the internal corner of the root of the pile head body 1; repeating the steps, and paving a second waterproof roll; the two pile side waterproof coiled materials 5 are paved in a staggered mode when being paved. When the two pieces are in staggered lap joint, the lap joint control lines are aligned, and the lap joint width is 0.1m of the long side and 0.1m of the short side. After every two waterproof coiled materials are laid, one waterproof coiled material which is laid and pasted firstly is slowly pressed and pressed by a special pressing roller or a hand, and the waterproof coiled materials are sequentially rolled according to the sequence.
Lay stake side waterproofing membrane 5 and bottom plate waterproofing membrane 6 during with prefabricated coiled material piece hot melt on stake side and foundation ditch plane, waterproofing membrane requires to get rid of the air below the coiled material when spreading the subsides, slowly flattens with special compression roller or hand hard. The surface of the waterproof coiled material is not required to have the phenomena of distortion, corrugation and blistering.
A plurality of waterproof coiled materials are adopted for carrying out multilayer hot melt lap joint, so that the whole sealing of the waterproof structure is tighter, and the waterproof effect is further improved; the corners and the pile sides are protected in a seamless mode by prefabricated coiled materials, and multiple complete waterproof layers are formed between the pile sides and the bottom plate.
The pile side waterproof coiled material 5 and the bottom plate waterproof coiled material 6 are prefabricated finished products. Waterproofing membrane prefabricates in advance, makes the construction swift convenient, practices thrift the time limit for a project.
Example 2:
the tubular pile head of the embodiment comprises the waterproof structure in the embodiment 1, wherein the waterproof structure comprises a pile head body 1, a concrete substrate 2 and pile core steel bars 3, the pile head body 1 protrudes out of the upper surface of the concrete substrate 2, and the pile core steel bars 3 are uniformly inserted into the pile head body 1 and are integrally formed with the pile head body 1; the pile head waterproof structure of the prestressed pipe pile comprises a pile side waterproof coiled material 5 and a bottom plate waterproof coiled material 6; the bottom plate waterproof roll 6 is laid on the upper surface of the concrete substrate 2; the pile side waterproof coiled material 5 is provided with a skirt angle 7; pile side waterproofing membrane 5 lays around the outer facade of pile head body 1, skirt angle 7 overlap joint on bottom plate waterproofing membrane 6's upper surface.
A prestressing force tubular pile head waterproof construction, still include cement base waterproof layer 4, cement base waterproof layer 4 cover in the top surface of pile head body 1 and outer facade all around.
A prestressing force tubular pile head waterproof construction, still include sealant 8, sealant 8 paint in the root of stake core reinforcing bar 3 and the receipts mouth department of stake side waterproofing membrane 5 and 1 top surface external corner of pile head body.
The bottom plate waterproof coiled material 6 is provided with a hole matched with the cross section of the pile head body 1.
The skirt angle 7 is a joining block formed by cutting the pile-side waterproofing sheet 5 at intervals in the width direction.
The pile side waterproof coiled materials 5 and the bottom plate waterproof coiled materials 6 are in one-to-one correspondence in quantity and are paved layer by layer in a staggered mode.
The pile side waterproof coiled material 5 and the bottom plate waterproof coiled material 6 are prefabricated finished products.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A pile head waterproof structure of a prestressed pipe pile is applied to a prestressed pipe pile, and the prestressed pipe pile comprises a pile head body (1), a concrete substrate (2) and pile core reinforcing steel bars (3), wherein the pile head body (1) protrudes out of the upper surface of the concrete substrate (2), and the pile core reinforcing steel bars (3) are uniformly inserted into the pile head body (1) and are integrally formed with the pile head body (1);
the prestressed pipe pile head waterproof structure is characterized by comprising a pile side waterproof coiled material (5) and a bottom plate waterproof coiled material (6); the bottom plate waterproof coiled material (6) is laid on the upper surface of the concrete substrate (2); the pile side waterproof roll (5) is provided with a skirt angle (7); pile side waterproofing membrane (5) are laid around the outer facade of pile head body (1), skirt angle (7) overlap joint at the upper surface of bottom plate waterproofing membrane (6).
2. The waterproof structure of the prestressed pipe pile head according to claim 1, further comprising a cement-based waterproof layer (4), wherein the cement-based waterproof layer (4) covers the top surface and the peripheral outer vertical surface of the pile head body (1).
3. The waterproof structure of the prestressed pipe pile head according to claim 1, further comprising a sealing paste (8), wherein the sealing paste (8) is applied to the root of the pile core steel bar (3) and the closing-up of the external corner of the top surface of the pile head body (1) and the waterproof roll material (5) at the pile side.
4. The waterproof structure of the prestressed pipe pile head as claimed in claim 1, wherein the bottom waterproof roll (6) has a hole matching with the cross-sectional shape of the pile head body (1).
5. The waterproof structure of the pile head of the prestressed pipe pile according to claim 1, wherein the skirt angle (7) is a lapping block formed by cutting the waterproof roll material (5) on the pile side at intervals in the width direction.
6. The waterproof structure of the pile head of the prestressed pipe pile according to claim 1, wherein the pile side waterproof roll (5) and the bottom plate waterproof roll (6) correspond in number one to one, and are laid layer by layer in a staggered manner.
7. The waterproof structure of the pile head of the prestressed pipe pile according to claim 1, wherein the waterproof roll material (5) on the pile side and the waterproof roll material (6) on the bottom plate are prefabricated finished products.
8. A tubular pile head, characterized in that the tubular pile head comprises a waterproof structure of prestressed tubular pile head as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921954373.7U CN211312492U (en) | 2019-11-13 | 2019-11-13 | Prestressed pipe pile head waterproof structure and pipe pile head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921954373.7U CN211312492U (en) | 2019-11-13 | 2019-11-13 | Prestressed pipe pile head waterproof structure and pipe pile head |
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| Publication Number | Publication Date |
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| CN211312492U true CN211312492U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921954373.7U Expired - Fee Related CN211312492U (en) | 2019-11-13 | 2019-11-13 | Prestressed pipe pile head waterproof structure and pipe pile head |
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| CN (1) | CN211312492U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810368A (en) * | 2020-12-18 | 2021-05-18 | 漳州市环佳清洁服务有限公司 | Waterscape stone structure for landscaping and construction method thereof |
| CN113898015A (en) * | 2021-11-24 | 2022-01-07 | 山东建筑大学 | Waterproof method and waterproof structure for underpinning underground storey-adding basement of pile foundation |
| CN115369927A (en) * | 2022-09-13 | 2022-11-22 | 中国三冶集团有限公司 | Construction method of anti-seepage structure of pile head of bottom plate of garbage pit |
-
2019
- 2019-11-13 CN CN201921954373.7U patent/CN211312492U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810368A (en) * | 2020-12-18 | 2021-05-18 | 漳州市环佳清洁服务有限公司 | Waterscape stone structure for landscaping and construction method thereof |
| CN113898015A (en) * | 2021-11-24 | 2022-01-07 | 山东建筑大学 | Waterproof method and waterproof structure for underpinning underground storey-adding basement of pile foundation |
| CN113898015B (en) * | 2021-11-24 | 2022-11-18 | 山东建筑大学 | Waterproof method and waterproof structure for underpinning underground storey-adding basement of pile foundation |
| CN115369927A (en) * | 2022-09-13 | 2022-11-22 | 中国三冶集团有限公司 | Construction method of anti-seepage structure of pile head of bottom plate of garbage pit |
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