CN113062313A - Prefabricated pile tip suitable for high water level area and construction method thereof - Google Patents
Prefabricated pile tip suitable for high water level area and construction method thereof Download PDFInfo
- Publication number
- CN113062313A CN113062313A CN202110276893.2A CN202110276893A CN113062313A CN 113062313 A CN113062313 A CN 113062313A CN 202110276893 A CN202110276893 A CN 202110276893A CN 113062313 A CN113062313 A CN 113062313A
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- groove
- pile tip
- precast pile
- rubber asphalt
- asphalt waterproof
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 239000010426 asphalt Substances 0.000 claims abstract description 39
- 239000011248 coating agent Substances 0.000 claims abstract description 37
- 238000000576 coating method Methods 0.000 claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000001680 brushing effect Effects 0.000 claims abstract description 9
- 239000003973 paint Substances 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000004568 cement Substances 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 101100394497 Caenorhabditis elegans toe-1 gene Proteins 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- -1 covering newspaper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010899 old newspaper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/72—Pile shoes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/50—Piles comprising both precast concrete portions and concrete portions cast in situ
Abstract
The invention discloses a precast pile tip suitable for high water level areas and a construction method thereof, wherein the method comprises the following steps: 1) presetting a first circular groove in the middle of the upper surface of the precast pile tip; 2) another annular second groove is preset in the middle of the upper vertical surface of the precast pile tip; 3) cleaning the pile toe after the prefabricated pile toe is transported to a construction site; 4) coating a layer of thick first non-cured rubber asphalt waterproof coating on the groove; 5) a circle of water-swelling water stop strip is embedded and filled in the groove respectively; 6) respectively brushing a layer of second non-cured rubber asphalt waterproof coating on the upper surface of the precast pile tip and the vertical side surface of the protrusion; 7) sinking the pipe; 8) pouring concrete; a waterproof layer with strong viscosity and a self-healing function is formed on the contact surface of the pile tip and the steel sleeve, so that underground water is effectively prevented from entering the sleeve in the pile sinking process, the loss of cement slurry in the sleeve is reduced, the service life of the sleeve pore-forming cast-in-place pile is prolonged, and the method is simple to operate, low in cost and environment-friendly.
Description
Technical Field
The invention belongs to the field of pile foundation engineering, and particularly relates to a prefabricated pile tip suitable for high water level areas and a construction method thereof.
Background
When the underground water level is high, after the steel sleeve and the concrete precast pile tip sink into the underground water level, part of underground water enters the steel sleeve along the gap between the steel sleeve and the pile tip, the concrete strength of the cast-in-place pile is reduced, and concrete cement paste in the pipe possibly flows out of the sleeve, so that the quality of the cast-in-place pile is reduced, and the quality of the pile is influenced, thereby endangering the safety of the building. Therefore, the waterproof performance of the pile tip of the immersed tube cast-in-place pile is very important.
Chinese patent CN212248212U discloses a high-strength solid square pile with an anti-corrosion and waterproof functional layer arranged on the inner side of the pile head and the pile body, the method arranges a stainless steel iron block and an anchor rod force transmission device on the pile head, the process is complex, and the construction difficulty and cost are increased.
Chinese patent CN211340763U discloses that the inside of pile body and pile head is provided with an inner cavity, the inner wall of inner cavity scribbles the environmental protection pile for the deep water region of anti-corrosion coating, and pile body, pile head set up waterproof pitch, and the construction is complicated, and waterproof coating area has greatly increased work load.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a prefabricated pile tip suitable for a high water level area and a construction method thereof, namely a simple method for the prefabricated pile tip with a waterproof function.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
in a first aspect, the present invention provides a precast pile tip for high water level areas and a construction method thereof, wherein the precast pile tip is characterized in that: the pile comprises a pile tip, wherein an annular first groove is preset in the middle of the upper surface of the pile tip; presetting an annular second groove in the middle of the convex part of the pile tip;
non-cured rubber asphalt waterproof paint is coated in the first groove and the second groove;
a circle of first water-swelling water stop strip and a circle of second water-swelling water stop strip are embedded and filled in the first groove and the second groove respectively;
the upper surface and the vertical surface of the pile toe are coated with non-cured rubber asphalt waterproof paint;
the pile tip is arranged in the steel sleeve to form a prefabricated pile tip integral structure.
In a second aspect, the present invention provides a precast pile tip for high water level areas and a construction method thereof, wherein the precast pile tip comprises: the method comprises the following steps:
1) presetting a first groove which is annularly arranged in the middle of the upper surface of the precast pile tip, wherein the diameter of the first groove is 5-7 mm;
2) presetting an annular second groove in the middle of the convex part of the precast pile tip, wherein the diameter of the second groove is 5-7 mm;
3) respectively brushing a layer of non-cured rubber asphalt waterproof coating with the thickness of 1-2mm in the first groove and the second groove;
4) a circle of first water-swelling water stop and a circle of second water-swelling water stop are respectively embedded and filled in the first groove and the second groove;
5) brushing a layer of non-cured rubber asphalt waterproof coating with the thickness of 2-3mm on the upper surface and the vertical surface of the precast pile tip;
6) sinking the pipe;
7) pouring concrete;
8) putting the steel bar cage;
9) and pouring concrete while pulling the sleeve.
Preferably, in the step 1), an annular first groove is preset in the middle of the upper surface of the precast pile tip, and the method includes:
and (3) welding a phi 5 steel bar inside the template on the upper surface of the cast-in-place precast pile tip, and forming a ring of annular first groove with the diameter of 5-7mm at the middle part of the upper surface of the precast pile tip after concrete casting and template removal.
Further, in the step 2), another annular second groove is preset in the middle of the upper vertical surface of the precast pile tip, and the method comprises the following steps:
and (3) welding phi 5 steel bars on the inner sides of the templates of the vertical surfaces of the cast-in-place precast pile tips, casting concrete, and forming a ring-shaped second groove with the diameter of 5-7mm at the middle part of the upper surface of the precast pile tip after removing the template.
Furthermore, in the step 2), before the first groove and the second groove are coated with a layer of non-cured rubber asphalt waterproof coating with the thickness of 1-2mm, the pile tip must be strictly cleaned.
Furthermore, in the step 4), a circle of first water-swelling water stop strip and a circle of second water-swelling water stop strip are respectively embedded and filled in the first groove and the second groove, joints of the first water-swelling water stop strip and the second water-swelling water stop strip are overlapped by 20mm, and seams are tight; the cross section of the first water-swelling water stop for the first groove is semicircular, and the cross section of the second water-swelling water stop for the second groove is circular.
Furthermore, in the step 6), the upper surface and the vertical surface of the precast pile tip are respectively coated with non-cured rubber asphalt waterproof paint, the base layer is required to be clean and dry before coating, construction in rainy days is not required, the vertical surface is coated firstly, and the plane is coated after the vertical surface is slightly dried; measures are required to be taken to prevent the non-solidified rubber asphalt waterproof coating from polluting other parts in the brushing process, and old newspapers and the like are used for shielding and protecting; after spraying, the non-cured rubber asphalt waterproof coating needs to be protected to avoid wind, sunshine and rain.
Further, in the step 3) and the step 5), before the non-cured rubber asphalt waterproof coating is coated, the non-cured rubber asphalt waterproof coating is heated to a construction temperature according to the temperature required by a material production method.
The invention has the following advantages and beneficial effects:
1) the non-cured rubber asphalt waterproof coating has strong adhesive force, and a plurality of waterproof layers are formed between the pile tip and the sleeve through the water-swelling water stop strips.
2) The non-cured rubber asphalt waterproof coating can be sprayed and blade-coated on a base layer, is simple to operate, good in fusion, and easy to realize the connection of pile head concrete and a steel pipe in the construction process, effectively prevents underground water from entering a sleeve, reduces the loss of cement slurry in the sleeve, and increases the strength and durability of the pile.
3) The non-cured rubber asphalt waterproof coating has the characteristics of permanent non-curing and self-healing, and can heal to prevent external water from entering for the cracking of a pile head caused in the pipe sinking process.
4) Compared with the traditional construction method, the invention utilizes the excellent performance of the non-cured rubber asphalt waterproof coating, is green and environment-friendly, reduces the water permeation for a long time during the construction process of the immersed tube cast-in-place pile and after the forming, and improves the service life of the pile.
Drawings
FIG. 1 is a schematic cross-sectional view of a preformed groove provided in the present invention;
FIG. 2 is a schematic cross-sectional view of a pre-groove of a precast pile toe, which is filled with a water-swelling water stop and coated with a non-curing rubber asphalt waterproof coating.
In the figure: 1. prefabricating a reinforced concrete pile tip; 2. a first groove; 3. a second groove; 4. steel casing; 5. concrete; 6. a first water-swellable seal; 7. a second water-swelling water stop strip; 8. non-curing rubber asphalt waterproof paint.
Detailed Description
The invention is further illustrated by the following figures and examples.
Example 1
The invention discloses a precast pile tip in a high water level area and a construction method, which comprises the following specific steps:
1) a first groove 2 is preset in the middle of the upper surface of the precast pile tip, and the diameter of the groove is 5-7 mm;
2) another annular second groove 3 is preset in the middle of the convex part of the precast pile tip, and the diameter of the groove is 5-7 mm;
3) brushing a layer of non-cured rubber asphalt waterproof coating with the thickness of 1-2mm on the first groove 2 and the second groove 3;
4) a circle of first water-swelling water stop strip 6 and a circle of second water-swelling water stop strip 7 are embedded and filled in the first grooves 2 and 3 respectively;
5) coating a layer of 2-3mm of first non-cured rubber asphalt waterproof coating 8 and a layer of second non-cured rubber asphalt waterproof coating 9 on the upper surface and the vertical surface of the precast pile tip;
6) sinking the pipe;
7) pouring concrete;
8) putting the steel bar cage;
9) and pouring concrete while pulling the steel sleeve.
As shown in figure 1, the precast pile tip in the high water level area and the construction method thereof are characterized in that when the pile tip is precast, an annular first groove 2 and an annular second groove 3 are reserved respectively, a circle of phi 5 steel bars are welded on the inner side of a steel template respectively, and the first groove 2 and the second groove 3 are formed after concrete pouring, maintenance and form removal.
As shown in fig. 2, the pile toe 1 is provided with a groove, and a water-swelling water stop is embedded in the groove, and the section of the water-proof coating is coated with non-curing rubber asphalt. Cleaning the surface of the pile tip 1, and spraying a layer of non-cured rubber asphalt waterproof coating on the surfaces of the first groove 2 and the second groove 3.
Before the non-solidified asphalt waterproof coating is completely cooled, a first water-swelling water stop strip 6 and a second water-swelling water stop strip 7 are respectively embedded and filled, and the joints of the water-swelling water stop strips are lapped by 20 mm.
And (3) coating a layer of 2-3mm non-cured rubber asphalt waterproof coating on the upper surface and the vertical surface of the pile tip 1, and taking certain protection measures before coating the non-cured rubber asphalt waterproof coating, such as covering newspaper, plastic bags and the like.
The pile tip 1 is placed into the steel sleeve 4, the pipe is sunk to the designed elevation, and no underground water enters the buoy for checking.
And pouring concrete with a certain height into the sleeve, putting the steel reinforcement framework into the sleeve, and continuously pouring the concrete while drawing the pipe.
Claims (10)
1. Precast pile point suitable for high water level area, its characterized in that: the pile comprises a pile tip (1) and a steel sleeve (4), wherein an annular first groove (2) is preset in the middle of the upper surface of the pile tip (1); an annular second groove (3) is preset in the middle of the convex part of the pile tip (1);
non-cured rubber asphalt waterproof paint (8) is coated in the first groove (2) and the second groove (3);
a circle of first water-swelling water stop strip (6) and a circle of second water-swelling water stop strip (7) are respectively embedded and filled in the first groove (2) and the second groove (3);
the upper surface and the vertical surface of the pile tip (1) are coated with non-cured rubber asphalt waterproof paint (8);
the pile toe (1) is arranged in the steel sleeve (4) to form a prefabricated pile toe integral structure.
2. A construction method of a precast pile tip suitable for a high water level region according to claim 1, comprising: the method comprises the following steps:
1) a first groove (2) which is annularly arranged is preset in the middle of the upper surface of the precast pile tip, and the diameter of the first groove (2) is 5-7 mm;
2) an annular second groove (3) is preset in the middle of the convex part of the precast pile tip, and the diameter of the second groove (3) is 5-7 mm;
3) respectively brushing a layer of non-cured rubber asphalt waterproof paint (8) with the thickness of 1-2mm in the first groove (2) and the second groove (3);
4) a circle of first water-swelling water stop strip (6) and a circle of second water-swelling water stop strip (7) are respectively embedded and filled in the first groove (2) and the second groove (3);
5) brushing a layer of non-cured rubber asphalt waterproof coating (8) with the thickness of 2-3mm on the upper surface and the vertical surface of the precast pile tip;
6) sinking the pipe;
7) pouring concrete (5);
8) putting the steel bar cage;
9) and pouring concrete (5) while pulling the sleeve.
3. The precast pile tip suitable for high water level areas and the construction method thereof according to claim 2, wherein: in the step 1), an annular first groove (2) is preset in the middle of the upper surface of the precast pile tip, and the method comprises the following steps:
and (3) welding a phi 5 steel bar at the inner side of the template on the upper surface of the cast-in-place precast pile tip, casting concrete (5), and removing the template to form a ring-shaped first groove (2) with the diameter of 5-7mm in the middle of the upper surface of the precast pile tip.
4. The precast pile tip suitable for high water level areas and the construction method thereof according to claim 2 or 3, wherein: in the step 2), another annular second groove (3) is preset in the middle of the upper vertical surface of the precast pile tip, and the method comprises the following steps:
and (3) welding phi 5 steel bars on the inner side of the template of the vertical surface of the cast-in-place precast pile tip, casting concrete (5), and forming a ring of annular second groove (3) with the diameter of 5-7mm at the middle part of the upper surface of the precast pile tip after the template is removed.
5. The precast pile tip suitable for high water level areas and the construction method thereof according to claim 2 or 3, wherein: in the step 2), before the first groove (2) and the second groove (3) are coated with a layer of non-cured rubber asphalt waterproof coating (8) with the thickness of 1-2mm, the pile tip must be strictly cleaned.
6. The precast pile tip suitable for high water level areas and the construction method thereof according to claim 4, wherein: in the step 2), before the first groove (2) and the second groove (3) are coated with a layer of non-cured rubber asphalt waterproof coating (8) with the thickness of 1-2mm, the pile tip must be strictly cleaned.
7. The precast pile tip and the construction method thereof applied to the high water level region according to claim 2, 3 or 6, wherein: in the step 4), a circle of first water-swelling water stop strip (6) and a circle of second water-swelling water stop strip (7) are respectively embedded and filled in the first groove (2) and the second groove (3), joints of the first water-swelling water stop strip (6) and the second water-swelling water stop strip (7) are overlapped by 20mm, and joints are tight; the cross section of a first water-swelling water stop bar (6) used by the first groove (2) is semicircular, and the cross section of a second water-swelling water stop bar (7) used by the second groove (3) is circular.
8. The precast pile tip and the construction method thereof applied to the high water level region according to claim 2, 3 or 6, wherein: in the step 6), the upper surface and the vertical surface of the precast pile tip are respectively coated with non-cured rubber asphalt waterproof paint (8), the base layer is required to be clean and dry before coating, construction in rainy days is not required, the vertical surface is coated firstly, and the plane is coated after the vertical surface is slightly dried; measures are required to be taken to prevent the non-cured rubber asphalt waterproof coating (8) from polluting other parts in the brushing process; after the spraying is finished, the non-cured rubber asphalt waterproof paint (8) is protected to avoid wind, sunshine and rain.
9. The precast pile tip suitable for high water level areas and the construction method thereof according to claim 7, wherein: in the step 6), the upper surface and the vertical surface of the precast pile tip are respectively coated with non-cured rubber asphalt waterproof paint (8), the base layer is required to be clean and dry before coating, construction in rainy days is not required, the vertical surface is coated firstly, and the plane is coated after the vertical surface is slightly dried; measures are required to be taken to prevent the non-cured rubber asphalt waterproof coating (8) from polluting other parts in the brushing process; after the spraying is finished, the non-cured rubber asphalt waterproof paint (8) is protected to avoid wind, sunshine and rain.
10. The precast pile tip suitable for high water level areas and the construction method thereof according to claim 9, wherein: in the step 3) and the step 5), before the non-cured rubber asphalt waterproof coating (8) is coated, the temperature is heated to the construction temperature according to the requirement of a material production method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276893.2A CN113062313A (en) | 2021-03-15 | 2021-03-15 | Prefabricated pile tip suitable for high water level area and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276893.2A CN113062313A (en) | 2021-03-15 | 2021-03-15 | Prefabricated pile tip suitable for high water level area and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113062313A true CN113062313A (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110276893.2A Pending CN113062313A (en) | 2021-03-15 | 2021-03-15 | Prefabricated pile tip suitable for high water level area and construction method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN113062313A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808908A (en) * | 2022-05-07 | 2022-07-29 | 泰安众科建材有限公司 | Method for reinforcing soft foundation based on medium-high carbon steel wire mesh |
| CN115045342A (en) * | 2022-08-10 | 2022-09-13 | 衡橡科技股份有限公司 | Water-swelling plugging ring for pile-first packer and using method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203066063U (en) * | 2013-01-29 | 2013-07-17 | 浙江华光市政建设有限公司 | Plastic sleeve and steel tube combined cast-in-situ concrete hollow pipe pile |
| CN204456161U (en) * | 2015-02-09 | 2015-07-08 | 上海三凯建设管理咨询有限公司 | A kind of water proof structure of pile cap |
| CN211816210U (en) * | 2019-12-24 | 2020-10-30 | 梁忠文 | Building foundation area stake big-end prestressed pipe pile |
-
2021
- 2021-03-15 CN CN202110276893.2A patent/CN113062313A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203066063U (en) * | 2013-01-29 | 2013-07-17 | 浙江华光市政建设有限公司 | Plastic sleeve and steel tube combined cast-in-situ concrete hollow pipe pile |
| CN204456161U (en) * | 2015-02-09 | 2015-07-08 | 上海三凯建设管理咨询有限公司 | A kind of water proof structure of pile cap |
| CN211816210U (en) * | 2019-12-24 | 2020-10-30 | 梁忠文 | Building foundation area stake big-end prestressed pipe pile |
Non-Patent Citations (5)
| Title |
|---|
| 《水利水电工程施工实用手册》编委会: "《地基与基础处理工程施工》", 31 December 2017 * |
| 杨欣等: "非固化橡胶沥青防水涂料在桩头防水处理中的应用", 《北方建筑》 * |
| 杨永起等: "《建筑防水工程新技术》", 31 August 2019 * |
| 沈春林: "《非固化橡胶沥青防水涂料》", 30 April 2017 * |
| 河南省土木建筑学会编: "《河南省土木建筑学术文库第8卷》", 31 May 2002 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808908A (en) * | 2022-05-07 | 2022-07-29 | 泰安众科建材有限公司 | Method for reinforcing soft foundation based on medium-high carbon steel wire mesh |
| CN115045342A (en) * | 2022-08-10 | 2022-09-13 | 衡橡科技股份有限公司 | Water-swelling plugging ring for pile-first packer and using method thereof |
| CN115045342B (en) * | 2022-08-10 | 2022-11-01 | 衡橡科技股份有限公司 | Water-swelling plugging ring for pile-first packer and using method thereof |
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Application publication date: 20210702 |