CN210127485U - Concrete suction type caisson foundation and thin-wall pier stud connecting structure - Google Patents
Concrete suction type caisson foundation and thin-wall pier stud connecting structure Download PDFInfo
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- CN210127485U CN210127485U CN201920390786.0U CN201920390786U CN210127485U CN 210127485 U CN210127485 U CN 210127485U CN 201920390786 U CN201920390786 U CN 201920390786U CN 210127485 U CN210127485 U CN 210127485U
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- concrete
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- pier stud
- wall pier
- shrouding
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011440 grout Substances 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims description 26
- 239000002002 slurry Substances 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 15
- 230000006978 adaptation Effects 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 7
- 239000004568 cement Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
The utility model provides a concrete suction formula caisson foundation and thin wall pier stud connection structure, include: the concrete suction type caisson, the concrete thin-wall pier stud and the steel sealing plate device; wherein the concrete suction type caisson is provided with a positioning steel bar and a concrete ring beam; the concrete thin-wall pier stud is arranged in the concrete ring beam, a positioning hole is formed in the concrete thin-wall pier stud, and the positioning steel bar is arranged in the positioning hole; the steel shrouding device sets up in the space, including anchor slab, flat shrouding, oblique front of a garment board and direction baffle, and the anchor slab is fixed on concrete thin wall pier stud, and flat shrouding is connected with the anchor slab, is provided with stiffening rib between flat shrouding and the anchor slab, and the downside at flat shrouding is fixed to the direction baffle, and the front of a garment board setting is in flat shrouding, the direction baffle outside, has seted up grouting hole and grout outlet on the flat shrouding. The utility model discloses a connection structure form adaptation concrete suction formula caisson is connected with the direct grout under water of thin wall pier stud, need not draw water and form the dry construction condition, and construction steps is simple.
Description
Technical Field
The utility model relates to an offshore structure engineering especially relates to a caisson basis and thin wall pier stud connection structure.
Background
The concrete suction type caisson foundation has good adaptability to soft foundations, high bearing capacity and less environmental pollution in foundation construction, and is gradually applied to offshore structure engineering in recent years; because of the characteristics of light dead weight, large section modulus, and better rigidity and strength, the concrete thin-wall pier column structure is usually used as an upper body structure of a concrete suction type caisson foundation and directly bears the upper load action. In practical engineering, if the concrete suction type caisson foundation and the upper concrete thin-wall pier stud structure are constructed and formed at one time, the construction stability of the overall structure is difficult to meet, and the water transportation process and safety guarantee are difficult to realize, so the concrete suction type caisson foundation is generally installed in advance, then the upper concrete thin-wall pier stud structure is installed and the connection construction between the upper concrete thin-wall pier stud structure and the upper concrete thin-wall pier stud structure is carried out, and finally the overall structure is formed. The reliability of the connection structure of the concrete suction caisson foundation and the upper concrete thin-wall pier stud structure is an important link for ensuring the structure safety, at present, most underwater foundations adopt cofferdams, pouring boxes, dry land construction conditions are formed by utilizing upper structure water stopping and the like, then connection node section construction is carried out, the construction process is complex, construction safety control links are multiple, the cost is high, and therefore, the development of the underwater direct grouting connection structure is very necessary, and the underwater connection structure has high engineering application value.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a concrete suction formula caisson basis and thin wall pier stud connection structure.
The utility model adopts the following technical scheme:
a concrete suction type caisson foundation and thin-wall pier stud connecting structure comprises: the concrete suction type caisson, the concrete thin-wall pier stud and the steel sealing plate device; wherein:
the concrete suction type caisson is characterized in that a positioning steel bar and a concrete ring beam are arranged on the upper end face of the concrete suction type caisson along the vertical direction, the positioning steel bar is located in the concrete ring beam, the concrete ring beam is of a ring beam structure, and an inclined plane is formed in the upper end of the inner wall of the concrete ring beam;
the concrete thin-wall pier column is arranged in the concrete ring beam, a gap is formed between the concrete thin-wall pier column and the concrete ring beam, a positioning hole is formed in the concrete thin-wall pier column along the vertical direction, and the positioning steel bar is arranged in the positioning hole;
the steel shrouding device sets up in the space, the steel shrouding device includes anchor slab, flat shrouding, oblique front of a garment board and direction baffle, the anchor slab is fixed on the concrete thin wall pier stud, flat shrouding with the anchor slab is connected, flat shrouding with be provided with stiffening rib between the anchor slab, the direction baffle sets up the downside of flat shrouding, oblique front of a garment board is fixed flat shrouding the direction baffle outside, the slip casting hole has been seted up on the flat shrouding and the grout outlet, flat shrouding oblique front of a garment board concrete ring roof beam with the concrete thin wall pier stud encloses into the cavity.
In a preferred embodiment, the anchor plate is embedded in the concrete thin-wall pier stud, the anchor plate comprises an upper anchor plate portion and a lower anchor plate portion which are fixedly connected or integrally formed, the upper anchor plate portion is a circular curved continuous plate, the lower anchor plate portion is an arc-shaped curved plate, the lower anchor plate portion is arranged on the lower side of the upper anchor plate portion in the vertical direction, the stiffening ribs and one ends of the flat sealing plates are connected with the upper anchor plate portion, the upper end surfaces of the flat sealing plates are connected with the lower ends of the stiffening ribs, the upper end surfaces of the guide partition plates are connected with the lower end surfaces of the flat sealing plates, the side walls of the guide partition plates are connected with the upper anchor plate portion and the lower anchor plate portion, and the number of the guide partition plates is the same as the number of the lower anchor plate portion.
In a preferred embodiment, the guide partition comprises a guide partition wide part and a guide partition narrow part, wherein the guide partition wide part is fixedly connected or integrally formed, the guide partition wide part is located on the upper side of the guide partition narrow part, the guide partition wide part is connected with the upper end face of the inclined flap, the inclined flap is parallel to the inclined face, the lower end face of the inclined flap is provided with a rubber water stop pad, and the rubber water stop pad is attached to the inclined face.
In a preferred embodiment, a bottom rubber water stop pad, a bottom outer ring rubber cushion layer and a bottom inner ring rubber cushion layer are arranged on the lower end face of the concrete thin-wall pier column, and the bottom rubber water stop pad is arranged between the bottom outer ring rubber cushion layer and the bottom inner ring rubber cushion layer.
In a preferred embodiment, the positioning hole penetrates from the upper end face of the concrete thin-wall pier column to the lower end face of the concrete thin-wall pier column, and pore slurry is injected into the positioning hole.
In a preferred embodiment, the grouting holes are connected with grouting pipes, and the grout outlet holes are connected with grout outlet pipes.
In a preferred embodiment, the grouting holes are connected with a pumping grouting machine through grouting pipes.
Compared with the prior art, the technical scheme of the utility model following beneficial effect has:
(1) the connecting structure of the utility model is suitable for the underwater direct grouting connection between the concrete suction caisson foundation and the thin-wall pier stud, no water pumping is needed to form dry construction conditions, and the construction steps are simple;
(2) the utility model discloses a cast-in-place part of connection structure is few, and upper portion and substructure are prefabricated construction, and the structure construction is little to environmental pollution, accords with the green theory of building.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic structural view of an anchor plate;
fig. 4 is the utility model discloses a concrete ring beam, concrete thin wall pier stud and steel closing plate device's top view.
Illustration of the drawings:
1. a concrete suction caisson; 11. positioning the reinforcing steel bars; 12. a concrete ring beam; 121. a bevel; 2. concrete thin-wall pier stud; 21. a void; 22. positioning holes; 23. a column bottom rubber water stop pad; 24. a rubber cushion layer on the outer ring of the column bottom; 25. a column bottom inner ring rubber cushion layer; 3. a steel seal plate device; 31. an anchor plate; 311. the upper part of the anchor plate; 312. the lower part of the anchor plate; 32. a flat sealing plate; 321. grouting holes; 322. a slurry outlet; 323. a grouting pipe; 324. a pulp outlet pipe; 33. an oblique flap; 331. a rubber water stop pad; 34. a guide partition plate; 341. a wide portion of the guide partition; 342. a guide spacer narrow portion; 35. a stiffening rib.
Detailed Description
The utility model provides a concrete suction formula caisson foundation and thin wall pier stud connection structure, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the following refers to the drawing and lifts the example the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, it being understood that the data so used may be interchanged under appropriate circumstances. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such system, article, or apparatus.
The utility model provides a pair of concrete suction type caisson foundation and thin wall pier stud connection structure, including concrete suction type caisson 1, concrete thin wall pier stud 2 and steel closing plate device 3. As shown in fig. 1 and 2, the upper end surface of the concrete suction caisson 1 is circular, the upper end surface of the concrete suction caisson 1 is provided with positioning steel bars 11 and a concrete ring beam 12 along the vertical direction, the concrete ring beam 12 is of a ring beam structure, the cross section of the concrete ring beam 12 is circular, the positioning steel bars 11 are located in the concrete ring beam 12, the upper end of the inner wall of the concrete ring beam 12 is provided with an inclined surface 121, the inclined surface 121 is annular, the lower end of the positioning steel bars 11 is embedded in the concrete suction caisson 1, the positioning steel bars 11 are uniformly distributed, and the positioning steel bars 11 are in a circular array.
As shown in fig. 2 and 4, the concrete thin-wall pier stud 2 is arranged in the concrete ring beam 12 along the vertical direction, the perimeter of the concrete thin-wall pier stud 2 is smaller than the perimeter of the inner wall of the concrete ring beam 12, a gap 21 is formed between the concrete thin-wall pier stud 2 and the concrete ring beam 12, positioning holes 22 are formed in the concrete thin-wall pier stud 2 along the vertical direction, the positioning holes 22 are uniformly distributed, the positioning holes 22 are in a circular array, the concrete thin-wall pier stud 2 is sleeved on the positioning steel bar 11 through the positioning holes 22 for positioning and sinking installation, when the concrete thin-wall pier stud 2 sinks in place, micro-expansion type cement slurry is filled into the positioning holes 22 for hole sealing to form primary connection, and the lateral stability rigidity during construction can be provided.
As shown in fig. 2 and 3, the steel sealing plate device 3 is arranged in the gap 21 and located between the concrete thin-wall pier stud 2 and the concrete ring beam 12, the steel sealing plate device 3 surrounds the concrete thin-wall pier stud 2 for a circle, the steel sealing plate device 3 comprises an anchor plate 31, a flat sealing plate 32, an oblique flap plate 33 and a guide partition plate 34, the anchor plate 31 is fixed on the concrete thin-wall pier stud 2, the flat sealing plate 32 is arranged along the horizontal direction, the flat sealing plate 32 is connected with the anchor plate 31, a stiffening rib 35 is arranged between the flat sealing plate 32 and the anchor plate 31 to reinforce the connection strength, the guide partition plate 34 is arranged at the lower side of the flat sealing plate 32, the oblique flap plate 33 is arranged at the outer side of the flat sealing plate 32 and the guide partition plate 34, the flat sealing plate 32 is provided with a grouting hole 321 and a grout outlet 322, the flat sealing plate 32, the flat sealing plate 33, the concrete ring beam 12 and the concrete thin-wall pier stud 2 are enclosed into a cavity, the guide partition plate 34 divides the cavity into a plurality of, and high-strength and high-elasticity modulus cement-based self-leveling grouting material is injected into the cavity from the grouting hole 321 to realize connection.
As shown in fig. 2, in a more preferred embodiment, the anchor plate 31 is embedded in the concrete thin-walled pier stud 2, the anchor plate 31 includes an anchor plate upper portion 311 and an anchor plate lower portion 312 which are fixedly connected or integrally formed, the anchor plate upper portion 311 is a circular curved continuous plate, the anchor plate lower portion 312 is an arc-shaped curved plate, the anchor plate lower portion 312 is disposed at a lower side of the anchor plate upper portion 311 in a vertical direction, one end of each of the stiffening ribs 35 and the flat sealing plate 32 is connected to the anchor plate upper portion 311, an upper end surface of the flat sealing plate 32 is connected to a lower end of the stiffening ribs 35, an upper end surface of the guide spacer 34 is connected to a lower end surface of the flat sealing plate 32, side walls of the guide spacer 34 are connected to the anchor plate upper portion 311 and the anchor plate lower portion 312, the number of the guide spacers 34 is the same as that of the anchor plate lower portion 312, the guide spacer 34 includes a guide spacer wide portion 341 and a guide spacer narrow portion 342 which are, the wide portion 341 of the guide partition plate is connected with the upper end face of the oblique flap 33, the oblique flap 33 is parallel to the inclined plane 121, the lower end face of the oblique flap 33 is provided with a rubber water stop pad 331, the rubber water stop pad 331 is attached to the inclined plane 121, the rubber water stop pad 331 is made of a material which is expandable when meeting water, and the anchor plate 31 can be fixed on the inner wall of the concrete thin-wall pier stud 2 or the outer wall of the concrete thin-wall pier stud 2.
As shown in fig. 2 and fig. 3, in a more preferred embodiment, a bottom rubber water stop pad 23, a bottom outer ring rubber pad layer 24 and a bottom inner ring rubber pad layer 25 are arranged on the lower end surface of the concrete thin-wall pier column 2, the bottom rubber water stop pad 23 is arranged between the bottom outer ring rubber pad layer 24 and the bottom inner ring rubber pad layer 25, and the bottom rubber water stop pad 23 is made of a water-swelling type material.
In a more preferred embodiment, as shown in fig. 2, the positioning hole 22 penetrates from the upper end surface of the concrete thin-wall pier stud 2 to the lower end surface of the concrete thin-wall pier stud 2, and after the concrete thin-wall pier stud 2 is positioned, the hole slurry is injected into the positioning hole 22 from the upper end opening to seal the hole.
In a more preferred embodiment, as shown in fig. 1 and 2, the grouting holes 321 are connected to a grouting pipe 323, the grout outlet 322 is connected to a grout outlet 324, the grouting holes 321 are connected to a pumping grouting machine (not shown) through the grouting pipe 323, the plurality of grouting holes 321 should be simultaneously and simultaneously grouted, and the pumping grouting machine injects a high-strength and high-elastic modulus cement-based self-leveling grouting material into the gap 21 between the concrete ring beam 12 and the concrete thin-walled pier stud 2 through the grouting pipe 323 from the grouting holes 321 to form an effective connection between the superstructure and the substructure.
The following describes an embodiment of the present invention:
s1: sinking and installing the concrete suction type caisson 1 until the lower end surface of the concrete suction type caisson 1 is contacted with an underwater mud surface;
s2: transporting the concrete thin-wall pier stud 2 to a construction site, and hoisting the concrete thin-wall pier stud to a mounting position right above the concrete suction type caisson 1 for initial positioning;
s3: hoisting the concrete thin-wall pier stud 2 to sink at a constant speed, and dynamically fine-tuning the position of the concrete thin-wall pier stud 2 to ensure that the positioning steel bar 11 on the upper end surface of the concrete suction type caisson 1 is inserted into the positioning hole 22 on the concrete thin-wall pier stud 2 and continuously sinks until the concrete thin-wall pier stud 2 is seated on the upper end surface of the concrete suction type caisson 1;
s4: pouring micro-expansive type cement slurry into the positioning hole 22 on the concrete thin-wall pier stud 2 for hole sealing to form anchor slurry connection of the vertical positioning reinforcing steel bar 11;
s5: pumping grouting machine equipment is adopted, high-strength and high-elasticity-modulus cement-based self-leveling grouting materials are injected into the gap 21 between the concrete ring beam 12 and the concrete thin-wall pier stud 2 through the grouting pipe 323 and the grouting hole 321, and meanwhile, the grout outlet pipe 324 is matched with drainage operation until the grout outlet pipe 324 discharges grout.
The present invention has been described in detail with reference to the specific embodiments, but the present invention is only by way of example and is not limited to the specific embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are intended to be within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (7)
1. The utility model provides a concrete suction formula caisson foundation and thin wall pier stud connection structure which characterized in that includes: the concrete suction type caisson, the concrete thin-wall pier stud and the steel sealing plate device; wherein:
the concrete suction type caisson is characterized in that a positioning steel bar and a concrete ring beam are arranged on the upper end face of the concrete suction type caisson along the vertical direction, the positioning steel bar is located in the concrete ring beam, the concrete ring beam is of a ring beam structure, and an inclined plane is formed in the upper end of the inner wall of the concrete ring beam;
the concrete thin-wall pier column is arranged in the concrete ring beam, a gap is formed between the concrete thin-wall pier column and the concrete ring beam, a positioning hole is formed in the concrete thin-wall pier column along the vertical direction, and the positioning steel bar is arranged in the positioning hole;
the steel shrouding device sets up in the space, the steel shrouding device includes anchor slab, flat shrouding, oblique front of a garment board and direction baffle, the anchor slab is fixed on the concrete thin wall pier stud, flat shrouding with the anchor slab is connected, flat shrouding with be provided with stiffening rib between the anchor slab, the direction baffle sets up the downside of flat shrouding, oblique front of a garment board sets up flat shrouding the direction baffle outside, the slip casting hole and grout outlet have been seted up on the flat shrouding, flat shrouding oblique front of a garment board concrete ring roof beam with the concrete thin wall pier stud encloses into the cavity.
2. The concrete suction-type caisson foundation and thin-wall pier stud connecting structure according to claim 1, wherein the anchor plate is embedded in the concrete thin-wall pier stud and comprises an upper anchor plate portion and a lower anchor plate portion which are fixedly connected or integrally formed, the upper anchor plate portion is a circular curved continuous plate, the lower anchor plate portion is an arc-shaped curved plate, the lower anchor plate portion is arranged on the lower side of the upper anchor plate portion in the vertical direction, the stiffening rib and one end of the flat sealing plate are connected with the upper anchor plate portion, the upper end face of the flat sealing plate is connected with the lower end of the stiffening rib, the upper end face of the guide partition plate is connected with the lower end face of the flat sealing plate, the side wall of the guide partition plate is connected with the upper anchor plate portion and the lower anchor plate portion, and the number of the guide partition plate is the same as the number of the lower anchor plate portion.
3. The concrete suction type caisson foundation and thin-walled pier stud connection structure of claim 2, wherein the guiding partition comprises a guiding partition wide part and a guiding partition narrow part, the guiding partition wide part is located at the upper side of the guiding partition narrow part, the guiding partition wide part is connected with the upper end face of the inclined flap, the inclined flap is parallel to the inclined face, the lower end face of the inclined flap is provided with a rubber water stop pad, and the rubber water stop pad is attached to the inclined face.
4. The concrete suction caisson foundation and thin-wall pier stud connection structure of claim 1, wherein a bottom rubber water stop pad, a bottom outer ring rubber cushion layer and a bottom inner ring rubber cushion layer are arranged on the lower end face of the concrete thin-wall pier stud, and the bottom rubber water stop pad is arranged between the bottom outer ring rubber cushion layer and the bottom inner ring rubber cushion layer.
5. The concrete suction caisson foundation and thin-wall pier stud connection structure of claim 1, wherein the positioning hole penetrates from the upper end face of the concrete thin-wall pier stud to the lower end face of the concrete thin-wall pier stud, and pore slurry is injected into the positioning hole.
6. The concrete suction caisson foundation and thin-walled pier stud connection structure of claim 1, wherein the grouting holes are connected with grouting pipes, and the grout outlet holes are connected with grout outlet pipes.
7. The concrete suction caisson foundation and thin-walled pier stud connection structure of claim 6, wherein the grouting holes are connected with a pumping grouting machine through grouting pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920390786.0U CN210127485U (en) | 2019-03-26 | 2019-03-26 | Concrete suction type caisson foundation and thin-wall pier stud connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920390786.0U CN210127485U (en) | 2019-03-26 | 2019-03-26 | Concrete suction type caisson foundation and thin-wall pier stud connecting structure |
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| Publication Number | Publication Date |
|---|---|
| CN210127485U true CN210127485U (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920390786.0U Expired - Fee Related CN210127485U (en) | 2019-03-26 | 2019-03-26 | Concrete suction type caisson foundation and thin-wall pier stud connecting structure |
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| CN (1) | CN210127485U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211215A (en) * | 2020-09-30 | 2021-01-12 | 同济大学建筑设计研究院(集团)有限公司 | Negative pressure ring reinforced rigid short pile foundation and installation method |
| CN113863672A (en) * | 2021-11-25 | 2021-12-31 | 中国十九冶集团有限公司 | Method for quickly constructing cylinder box concrete structure |
| CN114635443A (en) * | 2022-03-04 | 2022-06-17 | 广州船舶及海洋工程设计研究院（中国船舶工业集团公司第六0五研究院） | Caisson and underwater maintenance device |
-
2019
- 2019-03-26 CN CN201920390786.0U patent/CN210127485U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211215A (en) * | 2020-09-30 | 2021-01-12 | 同济大学建筑设计研究院(集团)有限公司 | Negative pressure ring reinforced rigid short pile foundation and installation method |
| CN113863672A (en) * | 2021-11-25 | 2021-12-31 | 中国十九冶集团有限公司 | Method for quickly constructing cylinder box concrete structure |
| CN114635443A (en) * | 2022-03-04 | 2022-06-17 | 广州船舶及海洋工程设计研究院（中国船舶工业集团公司第六0五研究院） | Caisson and underwater maintenance device |
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Granted publication date: 20200306 |