CN216865132U - Underwater foundation pile slurry leakage prevention construction device - Google Patents
Underwater foundation pile slurry leakage prevention construction device Download PDFInfo
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- CN216865132U CN216865132U CN202122879528.9U CN202122879528U CN216865132U CN 216865132 U CN216865132 U CN 216865132U CN 202122879528 U CN202122879528 U CN 202122879528U CN 216865132 U CN216865132 U CN 216865132U
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- Prior art keywords
- pile
- bag
- seepage
- slurry
- underwater foundation
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- 239000002002 slurry Substances 0.000 title claims abstract description 42
- 238000010276 construction Methods 0.000 title claims abstract description 33
- 230000002265 prevention Effects 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 4
- 239000004746 geotextile Substances 0.000 claims description 6
- 239000011440 grout Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 8
- 239000004744 fabric Substances 0.000 abstract description 8
- 239000011435 rock Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002689 soil Substances 0.000 abstract description 5
- 238000005056 compaction Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 2
- 241001330002 Bambuseae Species 0.000 abstract 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 2
- 239000011425 bamboo Substances 0.000 abstract 2
- 238000007569 slipcasting Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a slurry leakage prevention construction device for an underwater foundation pile, which solves the problem of slurry leakage of the existing underwater foundation pile during grouting by combining the existing underwater pile forming technology with a cloth bag pile construction technology, and comprises a pile casing, an anti-seepage bag and a hook, wherein the pile casing is arranged at a preset pile forming position in a sinking way and used for stabilizing the wall of a hole and preventing the collapse of the hole, the anti-seepage bag is arranged in the pile casing and used for containing slurry and preventing slurry leakage, and the hook is used for fixing the anti-seepage bag; when thick liquids pours into through the slip casting pipe during the prevention of seepage bag, prevention of seepage bag bottom can be gradually to the extrusion that expands all around, thereby makes protect a section of thick bamboo ability and unevenness's basement rock abundant contact, stops to protect in the foundation ditch a space between section of thick bamboo and the basement rock, prevents that thick liquids from losing. The underwater foundation pile leakage-proof construction device provided by the utility model has the advantages of simple structure and convenience in construction, can avoid slurry loss, ensure grouting amount, save construction cost, and has good compaction effect on soil body and high pile-forming quality.
Description
Technical Field
The utility model belongs to the technical field of engineering construction, and particularly relates to the technical field of underwater pile-forming slurry leakage prevention construction.
Background
In the existing stage, a pile casing is usually directly used for bridge construction across sea and river, and then grouting is performed to form a pile, but when the pile foundation is dug down and then excavated by a rotary drilling rig, due to the primary joint of a rock stratum and the disturbance of a percussion drill to the rock, the bottom surface of the pile casing is uneven or has cracks, a fully-closed area is difficult to form at the bottom of the pile casing, so that slurry easily flows into a shallow covering layer and gaps of the rock stratum during grouting, a large amount of slurry is lost if the slurry is light, a pile body is reconstructed if the slurry is heavy, and even serious potential safety hazards are caused. The existing solution is to supplement the slurry in time and prevent slurry leakage by filling clay into the casing or increasing the specific gravity of the slurry properly, but this method not only needs to consume a large amount of slurry, but also can not ensure the strength of the pile body, and is easy to form a hollow pile.
The cloth bag pile is characterized in that a columnar hole is vertically drilled at the pile position by a drilling machine, the general aperture is 300mm, then a geotextile bag is placed in the drilled columnar hole, then cement slurry is poured into the geotextile bag through a grouting pipe, and the grouting pressure can reach 2 Mpa. When the intensity of grout reaches a definite time, whole stake just forms a cylinder, because geotechnological fabric bag stake itself has the characteristic of keeping apart, drainage, the sack stake is filling the inflation back, not only has fine isolation effect, still can expand the soft soil body around the extrusion to all around under the effect of pressure simultaneously, makes the pore wall tighter, and the pile body is more firm, consequently extensively is used for consolidating silt matter soft soil.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a slurry leakage prevention construction device for an underwater foundation pile, which solves the problem that the existing underwater foundation pile is easy to leak slurry during grouting by combining the existing underwater pile forming technology with the cloth bag pile construction technology.
The utility model is realized by the following steps:
the utility model provides an underwater foundation pile leak protection thick liquid construction equipment which characterized in that: the anti-seepage pile comprises a pile casing which is sunk and installed at a preset pile forming position and used for stabilizing the hole wall and preventing the collapse of a drilled hole, and an anti-seepage bag which is arranged in the pile casing and used for containing slurry and preventing slurry leakage.
Preferably, the protective cylinder is made by rolling a steel plate with the wall thickness of 10-20 mm.
Preferably, the inner wall of the upper part of the protective cylinder is provided with a hook for opening and fixing the anti-seepage bag.
Preferably, the bottom of the impermeable bag is designed in a bag type, so that the diameter of the bottom of the impermeable bag is larger, more concrete can be accommodated, and the impermeable bag is easier to fit with gaps.
Preferably, the seepage-proofing bag is made of waterproof geotextile.
The utility model has the beneficial effects that: the utility model provides a slurry leakage prevention construction device for an underwater foundation pile, which combines the existing underwater pile forming technology with the cloth bag pile construction technology, has simple structure and convenient construction, can avoid slurry loss in grouting, ensures the grouting amount, saves the construction cost, has good compaction effect on a soil body, and has high pile forming quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view illustrating an operation principle of a leakage prevention construction device for an underwater foundation pile according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating a leakage of slurry during grouting of a conventional underwater foundation pile;
fig. 3 is a schematic view illustrating an installation manner of a casing of a slurry leakage prevention construction device for an underwater foundation pile according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating a grouting process of a grout leakage prevention construction device for an underwater foundation pile according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an anti-seepage bag of an anti-seepage construction device for an underwater foundation pile according to an embodiment of the present invention.
In the figure: 1-water layer, 2-bedrock, 3-shallow covering layer, 4-hook, 5-seepage-proofing bag, 6-grouting pipe, 7-piling hammer, 8-crane, 9-slurry and 10-pile casing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the utility model provides a slurry leakage prevention construction device for an underwater foundation pile, which solves the problem that the existing underwater foundation pile is easy to leak slurry during grouting by combining the existing underwater pile forming technology and a cloth bag pile construction technology, and comprises the following steps: the pile casing 10 and the anti-seepage bag 5 are formed by rolling a steel plate with the wall thickness of 10-20mm in the embodiment, are used for stabilizing the hole wall, preventing the collapse of a drilled hole, and simultaneously helping a bridge to guide the direction of a drill bit in the construction process, isolate surface water and fix the position of the pile bottom; as shown in fig. 3, before the pile casing 10 is installed and sunk, a special technician is required to accurately measure the installation and placement of the pile casing 10, then the crane 8 is used for sinking and placing the pile casing 10, the pile hammer 7 is used for driving the pile casing 10 to a preset pile forming position, the top end of the pile casing 10 is ensured to be 0.4-0.6m higher than the ground (water surface), whether the pile casing 10 is vertical or not is also checked during the sinking process, and if the pile casing 10 is deviated, the pile casing is corrected in time. After the pile casing 10 is installed, drilling is carried out by using a rotary drilling rig, and the deviation between the center of the drilling rig and the center of the pile casing 10 is controlled within 50 mm.
As shown in fig. 2, the bottom of the seepage-proofing bag 5 is sealed and is placed in the protecting cylinder 10, the diameter of the main body of the seepage-proofing bag 5 is equivalent to that of the protecting cylinder 10, and the length of the seepage-proofing bag is slightly longer than that of the protecting cylinder 10, so that the seepage-proofing bag is used for containing slurry 9 and preventing slurry leakage; in order to fix and grout the anti-seepage bag 5 conveniently, a hook 4 is welded on the inner wall of the upper part of the pile casing 10, the opening of the anti-seepage bag 5 is stretched and fixed on the hook 4, the opening of the anti-seepage bag 5 is connected with a grouting pipe 6, when slurry 9 is poured into the anti-seepage bag 5 through the grouting pipe 6, the anti-seepage bag 5 can be stretched and expanded and attached to the inner wall of the pile casing 10 due to the mobility of the slurry 9 and the ductility of the anti-seepage bag 5, and the bottom of the anti-seepage bag 5 can be gradually expanded and extruded to the periphery under the action of the gravity of the slurry 9 and grouting pressure along with the gradual increase of the poured slurry 9, so that the pile casing 10 can be in full contact with the uneven bedrock 2 to block a gap between the pile casing 10 and the bedrock 2 in a foundation pit, and prevent the slurry 9 from being greatly leaked into a shallow covering layer 3 and a rock layer gap.
As shown in fig. 5, further, the bottom of the impermeable bag 5 is designed in a bag type (that is, the diameter of the bottom of the impermeable bag 5 is larger than that of the middle part), so that more concrete can be accommodated in the bottom of the impermeable bag 5, and the contact area with the bedrock 2 is larger, so that the bottom of the casing 10 is easier to be matched with the bedrock 2, the pile body strength can be reinforced by similar bottom-expanding piles to a certain extent while slurry leakage is prevented, the pile foundation stability and the bearing capacity of a single pile are improved, and a good compaction effect is also achieved on a soil body, so that the construction quality is further ensured.
As a preferred embodiment, the seepage-proofing bag 5 is made of waterproof geotextile, and the material not only has high tensile strength and extensibility, but also has good acid, alkali, salt and microbial corrosion resistance, and is widely applied to standard-reaching projects of sea dikes, river dikes and lake dikes and reservoir reinforcing projects, so that the working life of the underwater foundation pile leakage-proofing construction device provided by the embodiment of the utility model is effectively prolonged to a certain extent.
It is worth mentioning that the pile casing 10 and the impermeable bag 5 can be prefabricated in factories, produced in a standardized manner, and then assembled on site, so that the construction method is simple and the construction efficiency is high.
As shown in fig. 2 to 4, a construction process of the apparatus for preventing leakage of underwater foundation pile provided by the embodiment of the present invention is as follows:
during construction, firstly, a pile forming position is determined according to a drawing through surveying and geological data, then the pile casing 10 is driven into the pile forming position, then a rotary drilling rig is used for excavating, hole cleaning is carried out after hole drilling is finished, then the anti-seepage bag 5 is placed into the pile casing 10 and is fixed through the hook 4, the grouting pipe 6 is placed into the geotextile belt, the fabric bag is pressed into the bottom by gravity along with the progress of grouting, the anti-seepage bag 5 is expanded under the action of concrete pressure, according to the anti-seepage characteristic of the fabric bag, the bottom of the anti-seepage bag 5 is expanded along with the increase of slurry, a gap between the pile casing 10 and the foundation rock 2 is blocked, the slurry cannot be leaked, grouting is stopped when the grouting degree meets the requirement, and the pile casing 10 can be removed after initial setting.
It should be noted that, according to the design requirements of different pile foundation bearing, a reinforcement cage can be placed in a pile hole before grouting, and then concrete slurry is poured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. The utility model provides an underwater foundation pile leak protection thick liquid construction equipment which characterized in that: the pile-forming device comprises a pile casing which is sunk and installed at a preset pile-forming position and used for stabilizing a hole wall and preventing a drilled hole from collapsing, and an anti-seepage bag which is arranged in the pile casing and used for containing slurry and preventing slurry from leaking; under the action of the gravity of the slurry and the grouting pressure, the bottom of the seepage-proofing bag can be gradually expanded and extruded to the periphery, so that the pile casing can be fully contacted with the rugged bedrock;
the bottom of the seepage-proof bag is made of geotextile into a bag type design, so that the diameter of the bottom of the seepage-proof bag is larger, more concrete can be contained, and the seepage-proof bag is easier to fit with gaps.
2. The underwater foundation pile grout leakage prevention construction device as claimed in claim 1, wherein: the protective cylinder is formed by rolling a steel plate with the wall thickness of 10-20 mm.
3. The underwater foundation pile grout leakage prevention construction device as claimed in claim 1, wherein: and a hook for opening and fixing the anti-seepage bag is arranged on the inner wall of the upper part of the protective cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122879528.9U CN216865132U (en) | 2021-11-23 | 2021-11-23 | Underwater foundation pile slurry leakage prevention construction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122879528.9U CN216865132U (en) | 2021-11-23 | 2021-11-23 | Underwater foundation pile slurry leakage prevention construction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216865132U true CN216865132U (en) | 2022-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122879528.9U Expired - Fee Related CN216865132U (en) | 2021-11-23 | 2021-11-23 | Underwater foundation pile slurry leakage prevention construction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216865132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118087535A (en) * | 2024-04-24 | 2024-05-28 | 上海建工二建集团有限公司 | Foundation pit bottom surge emergency grouting device and construction method thereof |
-
2021
- 2021-11-23 CN CN202122879528.9U patent/CN216865132U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118087535A (en) * | 2024-04-24 | 2024-05-28 | 上海建工二建集团有限公司 | Foundation pit bottom surge emergency grouting device and construction method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220701 |