CN115387373A - Construction method of near-water bearing platform - Google Patents
Construction method of near-water bearing platform Download PDFInfo
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- CN115387373A CN115387373A CN202211202442.5A CN202211202442A CN115387373A CN 115387373 A CN115387373 A CN 115387373A CN 202211202442 A CN202211202442 A CN 202211202442A CN 115387373 A CN115387373 A CN 115387373A
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- 238000010276 construction Methods 0.000 title claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 84
- 239000010959 steel Substances 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims abstract description 26
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- 239000011425 bamboo Substances 0.000 claims abstract description 23
- 239000011120 plywood Substances 0.000 claims abstract description 23
- 238000009826 distribution Methods 0.000 claims abstract description 19
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 239000004568 cement Substances 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 229920001821 foam rubber Polymers 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000003973 irrigation Methods 0.000 claims description 2
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- 239000004035 construction material Substances 0.000 abstract description 3
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- 235000005983 Crescentia cujete Nutrition 0.000 description 3
- 235000009797 Lagenaria vulgaris Nutrition 0.000 description 3
- 235000009852 Cucurbita pepo Nutrition 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
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- Piles And Underground Anchors (AREA)
Abstract
The invention provides a construction method of a near-water bearing platform, which comprises the following steps: installing a shoulder pole beam on the top surface of the pile foundation, and pouring concrete on the top surface of the pile foundation again; main beams are arranged at the lower sides of the two ends of the shoulder pole beam through finish rolling deformed steel bars; a plurality of distribution beams are laid between the tops of the two main beams at intervals; arranging a plurality of square timbers at the tops of the distribution beams, and paving bamboo plywood on the square timbers to complete the construction of the platform; sequentially constructing a reinforcing steel bar, a template and concrete on the bamboo plywood to complete the construction of the bearing platform; and after the strength of the bearing platform reaches the design requirement, the platform is dismantled. Compared with the construction of a steel cofferdam, the underwater operation is converted into the overwater operation, the risk is low in the process of building the platform, and the safety of construction operators is ensured; meanwhile, the platform erection construction working procedures are less, the operation is simple and easy, the working efficiency is higher, the construction efficiency is greatly improved, the construction materials and mechanical equipment are optimized to a great extent, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of bridge engineering construction, in particular to a construction method of a near-water bearing platform.
Background
The cofferdam is a temporary enclosure structure constructed for constructing permanent water conservancy facilities in the water conservancy project construction. The cofferdam construction method has the effects of preventing water and soil from entering the construction position of a building, facilitating drainage in the cofferdam, excavating a foundation pit, constructing the building and dismantling the cofferdam structure after construction is completed.
Among the prior art, to the construction of aquatic cushion cap, need carry out cofferdam construction usually, because the high highest water level that probably appears in the construction period that needs of cofferdam, so high requirement to the cofferdam steel sheet is higher, and the cofferdam need carry out underwater operation, bears exogenic action such as water pressure, and construction safety risk is great, and manufacturing cost is high, and the time limit for a project is longer, influences the efficiency of construction.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a method for constructing a waterside bearing platform, and aims to solve the technical problems of high cofferdam construction cost and low construction efficiency in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme: a construction method of a near-water bearing platform comprises the following steps:
chiseling the super-irrigation concrete on the top surface of the pile foundation to a first preset horizontal height to install a carrying pole beam, and pouring concrete on the top surface of the pile foundation again to form a concrete layer, wherein the concrete layer wraps part of the carrying pole beam, and the carrying pole beam is anchored into the concrete layer through a U-shaped steel bar buckle;
main beams are arranged at the lower sides of the two ends of the shoulder pole beam through finish rolling deformed steel bars, and the main beams are tightly attached to the two sides of the pile foundation steel casing;
a plurality of distribution beams are laid between the tops of the two main beams at intervals, and the distribution beams and the main beams are arranged in a staggered mode;
arranging a plurality of square timbers at the tops of the distribution beams, and paving bamboo plywood on the square timbers to complete the construction of the platform;
sequentially constructing reinforcing steel bars, templates and concrete on the bamboo plywood to complete the construction of the bearing platform;
and after the strength of the bearing platform meets the design requirement, the platform is dismantled.
According to an aspect of the above technical solution, before the step of completing the construction of the bearing platform, the construction method further includes:
and embedding angle steel at the top height of the bearing platform in the construction process of reinforcing steel bars, templates and concrete.
According to an aspect of the foregoing technical solution, the step of detaching the platform specifically includes:
arranging a hoist at the angle steel, and suspending the main beam through the hoist;
pulling the hoist to enable the hoist to be in a stressed state so as to bear the platform, and cutting the finish rolling deformed steel bar so as to enable the shoulder pole beam to be separated from the main beam;
and (3) lowering the hoist to enable the platform to fall onto the buoyancy tank on the water surface, and sequentially detaching the bamboo plywood, the square timber, the distribution beam and the main beam.
According to one aspect of the technical scheme, the step of chiseling the top surface of the pile foundation with the super-filled concrete to the first preset horizontal height to install the carrying pole beam specifically comprises the following steps:
cutting the pile foundation steel casing to enable the top surface of the pile foundation steel casing to be at a second preset horizontal height;
excavating the top surface of the pile foundation to a first preset horizontal height, wherein the first preset horizontal height is lower than the second preset horizontal height;
and cutting one side of the top of the pile foundation steel casing along the diameter direction to form two grooves, and mounting a shoulder pole beam on each groove.
According to an aspect of the above technical solution, after the step of mounting the shoulder pole beam, the construction method further includes:
and a steel bracket is welded at the bottom of the shoulder pole beam and is arranged corresponding to the groove.
According to an aspect of the foregoing technical solution, after the step of forming the concrete layer, the construction method further includes:
and roughening the top of the concrete layer.
According to one aspect of the technical scheme, the shoulder pole beam is a three-spliced I20a I-shaped steel, a hole is reserved at the splicing position of the three-spliced I20a I-shaped steel, and the hole diameter is larger than the diameter of a main rib in the pile foundation, so that the main rib penetrates through the I-shaped steel and is embedded into a bearing platform steel bar.
According to one aspect of the above technical solution, before the step of sequentially performing reinforcing steel bar, formwork and concrete construction on the bamboo plywood, the construction method further comprises:
a grouting hole is formed in the top surface of the shoulder pole beam, and a hole at the end opening of the shoulder pole beam is welded and blocked through a steel plate;
and injecting cement slurry into the shoulder pole beam through the grouting holes.
According to one aspect of the above technical solution, the step of injecting cement slurry into the shoulder pole beam through the injection hole specifically includes:
and injecting cement paste for multiple times through the grouting holes so as to fill gaps in the shoulder pole beam.
According to one aspect of the above technical solution, after the step of welding and blocking the hole at the end opening of the carrying pole beam by the steel plate, the construction method further includes:
and sealing a gap between the steel plate and the shoulder pole beam through foam rubber.
Compared with the prior art, the invention has the beneficial effects that: the platform is formed by utilizing the pile foundation and arranging the carrying pole beam, the main beam, the distribution beam, the square timber and the bamboo plywood on the pile foundation, the carrying pole beam is arranged on the groove formed in the steel casing, and the rigidity and the strength of the structure are ensured based on pouring of a concrete layer and grouting of the carrying pole beam; meanwhile, the platform erection construction operation procedures are less, the operation is simple and easy, the operation efficiency is higher, the construction efficiency is greatly improved, the construction materials and mechanical equipment are optimized to a great extent, the cost is reduced, and the construction efficiency is improved.
Drawings
FIG. 1 is a flow chart of a method of constructing a deck near the water in an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a pile foundation and a platform according to an embodiment of the present invention;
FIG. 3 is an enlarged view of the cross-sectional structure at A-A in FIG. 2;
FIG. 4 is an enlarged view of the cross-sectional structure at B-B in FIG. 2;
FIG. 5 is a cross-sectional view of a platform and a platform according to an embodiment of the present invention;
FIG. 6 is an enlarged view of portion A of FIG. 5;
description of the main element symbols:
| |
10 | Pile |
11 |
| |
20 | Finish-rolled |
21 |
| |
30 | |
40 |
| |
50 | |
60 |
| |
22 | |
70 |
| Gourd (gourds) | 80 | |
90 |
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 6, a method for constructing a deck on a water surface according to a first embodiment of the present invention includes the following steps:
step S100, chiseling the super-poured concrete on the top surface of the pile foundation 10 to a first preset horizontal height to install the carrying pole beam 20, pouring concrete on the top surface of the pile foundation 10 again to form a concrete layer, anchoring the carrying pole beam 20 into the concrete layer by adopting a U-shaped steel bar buckle, wrapping part of the carrying pole beam 20 by the concrete layer, and anchoring the carrying pole beam 20 into the concrete layer through the U-shaped steel bar buckle. Specifically, in this step, the carrying pole beam 20 is a three-spliced I20a I-beam, that is, is formed by splicing three I20a I-beams, and the pile foundation includes a pile foundation steel casing 11, and a steel bar and a concrete structure filled in the pile foundation steel casing 11, the steel bar includes a main bar axially disposed in the pile foundation steel casing 11, after the super-cast concrete is chiseled, the main bar leaks out, a hole is reserved at the spliced position of the three-spliced I20a I-beam, and the diameter of the hole is larger than that of the main bar in the pile foundation, so that the main bar can pass through the I-beam, the structural stability is ensured, and the main bar can be embedded into a pile foundation steel bar to serve as a part of a pile foundation reinforcement frame; the thickness of the concrete layer is 10cm, C30 concrete is adopted, the concrete layer wraps the shoulder pole beam by half of the height of the shoulder pole beam 20, the first preset horizontal height is set according to the designed elevation of the bottom for mounting the shoulder pole beam, and chiseling is carried out on the bearing platform 90 by minus 10 cm.
And step S200, mounting main beams 30 on the lower sides of two ends of the shoulder pole beam 20 through finish rolling deformed steel bars 21, wherein the main beams 30 are tightly attached to two sides of the pile foundation steel casing 11. Specifically, the carrying pole beam 20 is installed on the top surface of the pile foundation 10, two finish-rolled screws 21 are installed at both ends of the carrying pole beam 20, the finish-rolled screws 21 are M36 finish-rolled screws 21, the M36 finish-rolled screws 21 are fixed at both ends thereof to the carrying pole beam 20 and the girder 30 by M36 nuts, the girder 30 is composed of two I20a I-beams, and the girder 30 is installed in close contact with both sides of the pile foundation steel casing 11 and is perpendicular to the carrying pole beam 20. Preferably, in this step, in order to ensure the stable fixation of the finish-rolled deformed steel bar 21, a reinforcing steel plate is further welded to the outer wall surface of the joint between the shoulder-pole beam 20 and the main beam 30 and the finish-rolled deformed steel bar 21, the reinforcing steel plate is a 30 × 25 × 1.5cm Q235 steel plate, a spacer steel plate is further provided between the M36 nut and the shoulder-pole beam 20 and the main beam 30, and the spacer steel plate is a 10 × 1cm Q235 steel plate.
Step S300, a plurality of distribution beams 40 are laid between the tops of the two main beams 30 at intervals, and the distribution beams 40 and the main beams 30 are arranged in a staggered mode. Specifically, in this step, the distributing beams 40 are I-beams of I20a, as shown in fig. 2, in this embodiment, the number of the pile foundations 10 is 4, the distributing beams 40 are arranged on the main beam 30 at intervals, the distributing beams 40 are arranged perpendicular to the main beam 30, the distance between every two distributing beams 40 is 60cm, and the distributing beams 40 near the pile foundations 10 are cut to avoid the pile foundations 10.
And S400, arranging a plurality of square timbers 60 at the tops of the distribution beams 40, and paving bamboo plywood 50 on the square timbers 60 to complete the construction of the platform. Specifically, in this step, the square timber 60 is 10 × 10cm, the interval between every two square timber 60 is 20cm, the square timber 60 and the distribution beam 40 are perpendicular to each other, the bamboo plywood 50 is disposed on the square timber 60, the square timber 60 and the bamboo plywood 50 surround the periphery of the pile foundation steel casing 11, and the collision portions between the square timber 60 and the bamboo plywood 50 and the pile foundation steel casing 11 are cut.
And S500, constructing a steel bar, a template and concrete on the bamboo plywood 50 in sequence to complete the construction of the bearing platform 90. Specifically, in this step, the thickness of the bamboo plywood 50 is 1.5cm, and the steps of sequentially performing the reinforcing steel bar construction, the formwork construction and the concrete construction mainly include: firstly, a reinforcing steel bar frame is bound on the bamboo plywood 50, after the binding of the reinforcing steel bar frame is finished, a template is arranged on the periphery of the reinforcing steel bar frame, and finally, concrete pouring is carried out.
And S600, after the strength of the bearing platform 90 meets the design requirement, removing the platform. Specifically, in this step, when the strength of the platform 90 meets the design requirement, that is, the support of the platform structure is not required, and the platform structure is removed, the final structure including the pile foundation 10 and the platform 90 provided on the pile foundation 10 is obtained, and the shoulder pole beam 20 is buried between the platform 90 and the pile foundation 10.
Preferably, in this embodiment, the step S100 specifically includes:
step S110, cutting the pile foundation steel casing 11 to make the top surface of the pile foundation steel casing 11 at a second preset level. Specifically, in this step, the height of the above-mentioned cut is cut to +10cm from the design height of the platform 90.
And step S120, excavating the top surface of the pile foundation 10 to a first preset horizontal height, wherein the first preset horizontal height is lower than the second preset horizontal height. Specifically, in this step, the height of the top surface of the chiseled pile foundation 10 is chiseled according to the design height of the pile cap 90, which is-10 cm, that is, the pile base steel casing 11 is set higher than the top surface of the pile foundation 10, and the height difference is 20cm.
Step S130, two grooves are cut in the diameter direction on one side of the top of the pile foundation steel casing 11, and a shoulder pole beam 20 is installed on the grooves. Specifically, in this step, the width of the groove is 34cm, and the depth of the groove is 10cm (the bottom of the groove is the same as the height of the top surface of the pile foundation 10, i.e. the first preset height).
It can be understood that the above-mentioned bearing platform 90 is equivalent to be erected on the pile foundation 10, the platform is mainly used for building and loading the bearing platform 90, the shoulder pole beam 20 is used for connecting the platform and the pile foundation 10, and the shoulder pole beam 20 is also used as a part of the bearing platform 90 in the subsequent pouring of the bearing platform 90.
Further, in this embodiment, in order to ensure the rigidity and strength of the carrying pole beam 20, before the platform 90 is constructed, the construction method further includes:
step 510, forming a grouting hole on the top surface of the shoulder pole beam 20, and welding and sealing the hole at the end opening of the shoulder pole beam 20 through a steel plate. Specifically, in this step, the diameter of the grouting hole is 4cm, the carrying pole beam 20 is formed by three I-beams of I20a, the number of the grouting holes is two, the grouting holes are formed at the joint of every two adjacent I-beams, and a steel plate is welded to the hole at the end of the carrying pole beam 20 to form an accommodating space, so that the subsequent grouting treatment can be performed conveniently.
Step S511, sealing a gap between the steel plate and the shoulder pole beam 20 with foam rubber.
Step S520, injecting cement slurry into the inside of the shoulder pole beam 20 through the grouting hole. Specifically, in this step, the cement slurry is 42.5 ordinary silicate cement slurry, and the water-to-cement ratio is: water: cement =0.6 to 0.28, and cement paste is injected a plurality of times to ensure that the shoulder pole beam 20 is filled with the cement paste and the gap inside the shoulder pole beam 20 is filled.
In addition, in this embodiment, in order to facilitate the subsequent building process of the bearing platform 90, the concrete on the bottom surface of the bearing platform 90 is poured and bonded to the concrete layer, the construction method further includes:
and step S530, roughening the top of the concrete layer.
In this step, in order to ensure the stability of the shoulder pole beam 20, the steel bracket 22 is welded to the recessed groove, the size of the steel bracket 22 is 30 × 1.5cmq235 steel plate, and both sides of the steel bracket 22 are provided close to the pile-based steel casing 11 and the shoulder pole beam 20, respectively.
Preferably, in this embodiment, in step S500, before the step of completing the building of the platform 90, the construction method further includes:
step S530, embedding angle steel 70 at the top height of the bearing platform 90 in the construction process of reinforcing steel bars, templates and concrete. Based on this, in this embodiment, the step S600 specifically includes:
and step S610, arranging a hoist 80 at the angle steel 70, and suspending the main beam 30 through the hoist 80. In this step, the gravity of the bearing platform 90 is sequentially transmitted to the main beam 30 through the bamboo plywood 50, the square timber 60, and the distribution beam 40, the main beam 30 is fixed to the carrying pole beam 20 through the finish-rolled deformed steel bar 21, the angle steel 70 is fixed to one side of the bearing platform 90, and the block 80 is provided at the angle steel 70, so that the main beam 30 can be suspended by the block 80, and the platform structure is prevented from scattering after the finish-rolled deformed steel bar 21 is subsequently cut.
Step S620, pulling the hoist 80 to enable the hoist 80 to be in a stressed state so as to bear the platform, and cutting the finish rolling deformed steel bar 21 so as to enable the shoulder pole beam 20 to be separated from the main beam 30.
Step S630, lowering the hoist 80, making the platform fall onto the buoyancy tank, and removing the bamboo plywood 50, the square timber 60, the distribution beam 40, and the main beam 30 in sequence. Particularly, in this step, make calabash 80 atress at first step through chain block 80, then cut finish rolling screw-thread steel 21, so that shoulder pole roof beam 20 with girder 30 breaks away from, then slowly transfers calabash 80 through synchronous symmetry and makes the platform wholly unload, can understand ground, for the dismantlement of platform structure, between dismantling the platform, still need be provided with the flotation tank on the surface of water, makes the platform structure wholly drop on the flotation tank through transferring calabash 80, is convenient for further by upper to lower bamboo plywood 50, square lumber 60, distributive girder 40 and girder 30 of dismantling the cushion cap 90 bottom in proper order.
In summary, in the construction method of the near-water surface bearing platform in the above embodiment of the present invention, the pile foundation 10 is utilized, and the shoulder pole beam 20, the main beam 30, the distribution beam 40, the square timber 60, and the bamboo plywood 50 are arranged on the pile foundation 10 to form the platform, the shoulder pole beam 20 is arranged on the groove formed in the steel casing, and the rigidity and strength of the structure are ensured based on the pouring of the concrete layer and the grouting of the shoulder pole beam 20, and the angle steel 70 is pre-embedded during the construction of the bearing platform 90, so that the subsequent platform structure is convenient to be dismantled, compared with the steel cofferdam construction, the underwater operation is converted into the above-water operation, the risk in the platform erection process is small, and the safety of the construction operators is ensured; meanwhile, the platform erection construction working procedures are less, the operation is simple and easy, the working efficiency is higher, the construction efficiency is greatly improved, the construction materials and mechanical equipment are optimized to a great extent, and the cost is reduced.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A construction method of a near-water bearing platform is characterized by comprising the following steps:
chiseling the super-irrigation concrete on the top surface of the pile foundation to a first preset horizontal height to install a carrying pole beam, and pouring concrete on the top surface of the pile foundation again to form a concrete layer, wherein the concrete layer wraps part of the carrying pole beam, and the carrying pole beam is anchored into the concrete layer through a U-shaped steel bar buckle;
main beams are arranged at the lower sides of the two ends of the shoulder pole beam through finish rolling deformed steel bars, and the main beams are tightly attached to the two sides of the pile foundation steel casing;
a plurality of distribution beams are laid between the tops of the two main beams at intervals, and the distribution beams and the main beams are arranged in a staggered mode;
arranging a plurality of square timbers at the tops of the distribution beams, and paving bamboo plywood on the square timbers to complete the construction of the platform;
sequentially constructing reinforcing steel bars, templates and concrete on the bamboo plywood to complete the construction of the bearing platform;
and after the strength of the bearing platform meets the design requirement, the platform is dismantled.
2. The method of claim 1, wherein prior to the step of completing the erection of the platform, the method further comprises:
and embedding angle steel at the top height of the bearing platform in the construction process of reinforcing steel bars, templates and concrete.
3. The method of claim 2, wherein the step of removing the platform comprises:
arranging a hoist at the angle steel, and suspending the main beam through the hoist;
pulling the hoist to enable the hoist to be in a stressed state so as to bear the platform, and cutting the finish rolling deformed steel bar so as to enable the shoulder pole beam to be separated from the main beam;
and (3) lowering the hoist to enable the platform to fall onto a buoyancy tank on the water surface, and sequentially detaching the bamboo plywood, the square timber, the distribution beam and the main beam.
4. The method of claim 1, wherein the step of chiseling the top surface of the pile foundation with super-filled concrete to a first predetermined level to install the shoulder pole includes:
cutting the pile foundation steel casing to enable the top surface height of the pile foundation steel casing to be at a second preset horizontal height;
excavating the top surface of the pile foundation to a first preset horizontal height, wherein the first preset horizontal height is lower than the second preset horizontal height;
and cutting one side of the top of the pile foundation steel casing along the diameter direction to form two grooves, and mounting a shoulder pole beam on each groove.
5. The method of claim 4, wherein after the step of mounting a shoulder pole beam, the method further comprises:
and a steel bracket is welded at the bottom of the shoulder pole beam and is arranged corresponding to the groove.
6. The method of claim 1, wherein after the step of forming the concrete layer, the method further comprises:
and roughening the top of the concrete layer.
7. The method for constructing the waterside bearing platform according to claim 1, wherein the carrying pole beam is a three-spliced I20a I-shaped steel, a hole is reserved at the splicing position of the three-spliced I20a I-shaped steel, and the hole is larger than the diameter of a main rib in the pile foundation, so that the main rib can penetrate through the I-shaped steel and be embedded into a reinforcing steel bar of the bearing platform.
8. The method of claim 1, wherein before the steps of sequentially applying the reinforcement, the form, and the concrete to the bamboo plywood, the method further comprises:
a grouting hole is formed in the top surface of the shoulder pole beam, and a hole at the end opening of the shoulder pole beam is welded and blocked through a steel plate;
and injecting cement slurry into the shoulder pole beam through the grouting holes.
9. The method of claim 8, wherein the step of injecting grout into the shoulder pole beam through the grouting holes comprises:
and injecting cement slurry for multiple times through the grouting holes so as to fill gaps in the shoulder pole beam.
10. The method of claim 8, wherein after the step of welding and sealing the opening of the shoulder pole beam with the steel plate, the method further comprises:
and sealing a gap between the steel plate and the shoulder pole beam through foam rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211202442.5A CN115387373B (en) | 2022-09-29 | 2022-09-29 | Construction method of water surface bearing platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211202442.5A CN115387373B (en) | 2022-09-29 | 2022-09-29 | Construction method of water surface bearing platform |
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| CN115387373A true CN115387373A (en) | 2022-11-25 |
| CN115387373B CN115387373B (en) | 2023-08-22 |
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Citations (5)
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| CN109518704A (en) * | 2018-11-20 | 2019-03-26 | 中国建筑第四工程局有限公司 | A kind of load system transform system and conversion method integrally transferred for steel lifted trunk |
| CN109537617A (en) * | 2018-12-03 | 2019-03-29 | 中铁十二局集团有限公司 | A kind of construction method pouring hanging cushion cap using suspension type bed die bracket |
| JP2021001497A (en) * | 2019-06-24 | 2021-01-07 | 五洋建設株式会社 | Pile support structure and construction method of the same |
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| CN115387373B (en) | 2023-08-22 |
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