CN220266606U - L-shaped meat and vegetable occluding pile cofferdam - Google Patents
L-shaped meat and vegetable occluding pile cofferdam Download PDFInfo
- Publication number
- CN220266606U CN220266606U CN202322054861.5U CN202322054861U CN220266606U CN 220266606 U CN220266606 U CN 220266606U CN 202322054861 U CN202322054861 U CN 202322054861U CN 220266606 U CN220266606 U CN 220266606U
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- water blocking
- blocking surface
- vegetable
- meat
- pile
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- 235000013372 meat Nutrition 0.000 title claims abstract description 43
- 235000013311 vegetables Nutrition 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 230000000903 blocking effect Effects 0.000 claims abstract description 69
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 238000010276 construction Methods 0.000 abstract description 26
- 239000000463 material Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 13
- 238000005553 drilling Methods 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The utility model provides an L-shaped meat and vegetable occluding pile cofferdam, which comprises the following components: a first water blocking surface; the second water blocking surface is vertically connected with the first water blocking surface; the splicing structure is arranged on the first water blocking surface and/or the second water blocking surface and comprises a plurality of meat piles and a plurality of vegetable piles which are arranged in a staggered manner, and adjacent meat piles and vegetable piles are meshed to form a meshing area; and the inclined struts are positioned in an area formed by encircling the first water blocking surface and the second water blocking surface, and are obliquely connected with the first water blocking surface and the second water blocking surface. The utility model solves the technical problems of slow construction and more material consumption of the traditional cofferdam.
Description
Technical Field
The utility model relates to the technical field of cofferdams, in particular to an L-shaped meat and vegetable occluding pile cofferdam.
Background
To meet the demands of social development, the number of bridge constructions is increasing. Along with the progress of scientific technology, the foundation in the water of bridge engineering is continuously changed in the aspect of construction, and mainly, the construction technology is upgraded, and the construction requirement is also improved. The construction environment, climate and other factors cause great construction difficulty for foundation construction in water, and the conventional construction technology is difficult to meet the requirements. According to statistics, the annual water level change rule is 2-4 months as the lowest water level period, 7-9 months as the highest flood period, the maximum surface flow rate is reached when flood, the bridge pier and the bearing platform are not under water for a long time, the pile foundation and the bearing platform can be completed only within a period of one or two months in the dead water period, and how to rob the construction period and ensure safety is a huge problem.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides an L-shaped meat and vegetable occluding pile cofferdam, which aims to solve the technical problems of slow construction and more material consumption of the traditional cofferdam in the related art.
The utility model provides an L-shaped meat and vegetable occluding pile cofferdam, which comprises the following components:
a first water blocking surface;
the second water blocking surface is vertically connected with the first water blocking surface;
the splicing structure is arranged on the first water blocking surface and/or the second water blocking surface and comprises a plurality of meat piles and a plurality of vegetable piles which are arranged in a staggered manner, and adjacent meat piles and vegetable piles are meshed to form a meshing area; and
the inclined struts are positioned in an area formed by encircling the first water blocking surface and the second water blocking surface, and are obliquely connected with the first water blocking surface and the second water blocking surface.
Further, the first water blocking surface and/or the second water blocking surface are/is provided with an enclosing purlin, and the diagonal bracing is fixed on the enclosing purlin.
Further, pile head steel plates extend out of the end portions of the diagonal braces towards the peripheral surfaces of the diagonal braces, and the diagonal braces are fixed to the enclosing purlins through the pile head steel plates.
Further, the pile head steel plate is provided with a plurality of stiffening plates, and the stiffening plates are arranged around the diagonal braces.
Further, the enclosing purlin is formed with a first installation surface and a second installation surface which are oppositely arranged, the first installation surface is fixed on the first water blocking surface or the second water blocking surface, the second installation surface faces to the diagonal bracing, and a plurality of web members which incline along different directions are formed between the first installation surface and the second installation surface.
Further, the meat pile is internally provided with I-steel extending along the axial direction of the meat pile.
Further, at least one surface of the I-steel is provided with a limit support for being abutted against the inner wall of the meat pile.
Further, the junction of the first water blocking surface and the second water blocking surface is in transitional connection with the plain pile.
Compared with the prior art, the utility model has the following beneficial effects: the first water blocking surface and the second water blocking surface are vertically connected to form an L-shaped cofferdam, and for construction in a dead water period, the cofferdam can achieve the water blocking effect of the traditional cofferdam, and because only two water blocking surfaces are constructed, the construction period can be shortened; in addition, the water retaining surface adopts an assembling structure which comprises a plurality of groups of meat piles and vegetable piles which are mutually meshed, so that the construction can be faster, the labor input cost can be reduced, the steel consumption can be greatly reduced on consumable materials, and the cost can be reduced; and adopt bracing to connect first water blocking surface and second water blocking surface to improve the steadiness of this cofferdam.
Drawings
FIG. 1 is a schematic view of a cofferdam with L-shaped meat and vegetable snap piles according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic view of an enclosing purlin according to an embodiment of the utility model.
Reference numerals illustrate:
1. meat pile; 2. piling; 3. an occlusal region; 4. diagonal bracing; 5. enclosing purlin; 6. pile head steel plates; 7. stiffening plates; 8. a web member; 9. i-steel; 10. and (5) limiting support.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the embodiment of the utility model, as shown in fig. 1-3, the L-shaped meat and vegetable occluding pile cofferdam comprises a first water blocking surface, a second water blocking surface, an assembling structure and a plurality of inclined struts 4; the second water blocking surface is vertically connected with the first water blocking surface; the splicing structure is arranged on the first water blocking surface and the second water blocking surface and comprises a plurality of meat piles 1 and a plurality of vegetable piles 2 which are arranged in a staggered manner, and adjacent meat piles 1 and vegetable piles 2 are meshed to form a meshing area 3; and the inclined struts 4 are positioned in the area formed by encircling the first water blocking surface and the second water blocking surface, and each inclined strut 4 is obliquely connected with the first water blocking surface and the second water blocking surface.
Specifically, in the embodiment of the utility model, the cofferdam comprises a first water blocking surface and a second water blocking surface which extend along the X axis and the Y axis respectively so as to form an L-shaped structure; for the dead water period, compared with the traditional cofferdam form, the L-shaped cofferdam only has two constructed faces, thereby saving the construction period and manpower and material resources. Of course, in the dry period, the effect can be better by adopting the cofferdam in which the riverbed is shallow bare rock with better lithology.
In the embodiment of the utility model, as the traditional cofferdam is welded by adopting a steel structure, the steel consumption is large and the cost is high, the cofferdam (the first water blocking surface and the second water blocking surface) is constructed by adopting a splicing structure, namely: the splicing structure comprises a plurality of meat piles 1 and a plurality of vegetable piles 2 which are arranged in a staggered manner, wherein adjacent meat piles 1 and vegetable piles 2 are mutually meshed to form a meshed area 3, and concrete is poured between the meat piles 1 and the vegetable piles 2 so as to reduce the consumption of steel; furthermore, the formed occlusion zone 3 can play a role in stopping water to replace the traditional cofferdam made of steel structure, namely: most of the working procedures are mechanical construction by using a rotary drilling rig and a crane, welding is not needed, labor cost is saved, and construction progress is quickened.
The cofferdam construction process comprises the following steps: construction preparation, measurement paying-off, drilling machine positioning, excavation drilling of a plain pile 2, excavation drilling of a meat pile 1 and concrete filling. In order to ensure that the occlusion region 3 has a good water stopping effect, the construction sequence adopts jump construction. The construction adopts C20 concrete, and the construction of the secant pile is required to be completed before the concrete is initially set. And (3) carefully checking pile position coordinates of the construction drawing before lofting by adopting a polar coordinate method in construction lofting, and checking by a report supervision engineer after field lofting and self-checking are qualified by a measurer. After the pile is qualified, a steel pile casing is buried according to measurement positioning, the inner diameter of the pile casing is 20cm larger than the diameter of a pile hole, the pile casing is buried 1.50-2.50 m below the ground (the sand layer section is 1m higher than the sand layer), the upper end is 30-40 cm higher than the ground, clay is backfilled around and tamped in layers, so that slurry is prevented from flowing into the hole from the hole opening or the pile casing bottom; the pile casing is firmly installed, the plane position deviation is not more than 5cm, and the vertical deviation is not more than 1%. In order to prevent serious water seepage and ensure the quality of pile foundations, slurry is used for protecting walls during pile foundation excavation. And (5) drilling by adopting a rotary drilling rig. C20 concrete is adopted after pile holes are formed and accepted, and steel guide pipes with phi of 25cm are adopted for underwater concrete pouring.
In the embodiment of the utility model, the diagonal bracing 4 is used for connecting the first water blocking surface and the second water blocking surface so as to improve the stability of the water blocking surface.
As shown in fig. 1 and 2, in an embodiment, the first water blocking surface and the second water blocking surface are provided with an enclosing purlin 5, and the diagonal brace 4 is fixed on the enclosing purlin 5. Specifically, in order to install the diagonal brace 4 on each water blocking surface, the present embodiment sets the enclosing purlin 5 on both the first water blocking surface and the second water blocking surface, and the diagonal brace 4 is installed at the location of the enclosing purlin 5. After the construction of meat and vegetable occlusion piles is completed, a foundation pit is excavated by an excavating machine, the foundation pit is excavated to the elevation-1.00 m, the enclosing purlin 5 is installed at the elevation-0.50 m, the inclined strut 4 adopts 630x8mm, when the enclosing purlin 5 is installed, the meat and vegetable occlusion piles are drilled and planted with ribs, and the enclosing purlin 5 is supported by a pull installation bracket.
As shown in fig. 1 and 2, in one embodiment, a pile head steel plate 6 extends from an end of the diagonal brace 4 to a circumferential surface thereof, and the diagonal brace 4 is fixed to the surrounding purlin 5 by the pile head steel plate 6. Specifically, in order to facilitate fixing the diagonal brace 4 to the enclosing purlin 5, a pile head steel plate 6 is welded to the end of the diagonal brace 4, and the pile head steel plate 6 is fixedly mounted to the enclosing purlin 5. Preferably, the pile head steel plate 6 is provided with a plurality of stiffening plates 7, and a plurality of stiffening plates 7 are arranged around the diagonal bracing 4 to further strengthen the diagonal bracing 4.
As shown in fig. 2 and 3, in an embodiment, the enclosing purlin 5 is formed with a first installation surface and a second installation surface that are oppositely disposed, the first installation surface is fixed on the first water blocking surface or the second water blocking surface, the second installation surface is disposed towards the diagonal brace 4, and a plurality of web members 8 that incline in different directions are formed between the first installation surface and the second installation surface. Specifically, in order to balance the stress of the enclosing purlin 5, a hollow structure is formed in the middle of the enclosing purlin 5, and the web members 8 are welded, and the web members 8 are inclined in different directions to balance the stress.
In one embodiment, as shown in fig. 2, the meat pile 1 is provided with a i-steel 9 extending along the axial direction thereof. Specifically, in order to improve the strength of the meat pile 1, in this embodiment, an i-steel 9 is disposed on each meat pile 1, and the i-steel 9 is lifted by an automobile crane and then placed into the meat pile 1; further, after the placement and accurate positioning of the i-steel 9, a steel bar is welded on one surface (in other embodiments, four sides around the i-steel 9) of the i-steel 9 as a limit brace 10 to connect with the meat pile 1, so as to ensure that the i-steel 9 does not deviate in the concrete filling process.
As shown in fig. 1, in an embodiment, the connection between the first water blocking surface and the second water blocking surface is in transitional connection with the pile 2; so that the vegetable piles 2 are meshed with the meat piles 1, and the formed meshed area 3 plays a role in stopping water at the joint of the two water stop surfaces.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (8)
- An l-shaped meat and vegetable bite pile cofferdam, comprising:a first water blocking surface;the second water blocking surface is vertically connected with the first water blocking surface;the splicing structure is arranged on the first water blocking surface and/or the second water blocking surface and comprises a plurality of meat piles and a plurality of vegetable piles which are arranged in a staggered manner, and adjacent meat piles and vegetable piles are meshed to form a meshing area; andthe inclined struts are positioned in an area formed by encircling the first water blocking surface and the second water blocking surface, and are obliquely connected with the first water blocking surface and the second water blocking surface.
- 2. The L-shaped meat and vegetable secant pile cofferdam according to claim 1, wherein said first water retaining surface and/or said second water retaining surface are/is provided with an enclosing purlin, and said diagonal bracing is fixed to said enclosing purlin.
- 3. The L-shaped meat and vegetable secant pile cofferdam of claim 2, wherein the ends of said diagonal braces extend to the perimeter surface thereof with pile head steel plates, said diagonal braces being secured to said purlin by said pile head steel plates.
- 4. An L-shaped meat and vegetable secant pile cofferdam as in claim 3, wherein said pile head steel plate is provided with a plurality of stiffening plates, a plurality of said stiffening plates being disposed around said diagonal braces.
- 5. An L-shaped meat and vegetable bite pile cofferdam as claimed in any one of claims 2 to 4, wherein said purlin is formed with a first mounting surface and a second mounting surface which are disposed in opposition, said first mounting surface being fixed to said first water blocking surface or said second water blocking surface, said second mounting surface being disposed toward said diagonal brace, and a plurality of web members being formed between said first mounting surface and said second mounting surface and being inclined in different directions.
- 6. The L-shaped meat and vegetable bite pile cofferdam as set forth in claim 1, wherein said meat piles are internally provided with i-bars extending in the axial direction thereof.
- 7. The L-shaped meat and vegetable bite pile cofferdam as set forth in claim 6, wherein at least one surface of said i-steel is provided with a limit stay for abutting against the inner wall of said meat pile.
- 8. The L-shaped meat and vegetable bite pile cofferdam of claim 1, wherein the junction of said first water blocking surface and said second water blocking surface is in transitional connection with said vegetable pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322054861.5U CN220266606U (en) | 2023-07-31 | 2023-07-31 | L-shaped meat and vegetable occluding pile cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322054861.5U CN220266606U (en) | 2023-07-31 | 2023-07-31 | L-shaped meat and vegetable occluding pile cofferdam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220266606U true CN220266606U (en) | 2023-12-29 |
Family
ID=89300352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322054861.5U Active CN220266606U (en) | 2023-07-31 | 2023-07-31 | L-shaped meat and vegetable occluding pile cofferdam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220266606U (en) |
-
2023
- 2023-07-31 CN CN202322054861.5U patent/CN220266606U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |