A detachable miniature operating platform for underwater cast-in-place pile construction

Abstract

This utility model relates to a detachable miniature operating platform for underwater cast-in-place pile construction. The detachable miniature operating platform includes a platform plate, a support cylinder connected to the platform plate, a limit ring connected to the lower end of the support cylinder, and a mating cylinder connected to the inner edge of the limit ring. The mating cylinder is used to insert into and is adapted to the steel casing of the cast-in-place pile. The lower end face of the support cylinder is vertically opposite to the upper end face of the steel casing. The platform plate has operating holes corresponding to the support cylinder. This utility model uses the support cylinder to support the platform plate and uses the insertion relationship between the mating cylinder and the steel casing to achieve a reliable connection between the support cylinder and the steel casing. This allows the operating platform of this utility model to be quickly and directly assembled on the top of the steel casing, eliminating the need to build a large platform, greatly reducing the platform construction cost, and improving the construction efficiency of the cast-in-place pile.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy engineering technology, specifically relating to a detachable micro-operating platform for underwater cast-in-place pile construction. Background Technology

[0002] In waterway improvement and bridge foundation projects, cast-in-place pile construction is a common and crucial procedure. Traditionally, temporary steel structures or scaffolding are used as operating platforms, which suffer from long erection times, high material costs, and difficulties in relocation. Therefore, a specialized operating platform that is quick to install, stable, reusable, and low-cost is needed. Utility Model Content

[0003] The primary technical problem to be solved by this invention is to provide a detachable micro-operating platform for underwater cast-in-place pile construction, thereby addressing the technical issues of long construction periods, high material costs, and difficulties in relocation associated with conventional platforms.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a detachable micro-operating platform for underwater cast-in-place pile construction, including a platform plate, the edge of which is provided with a fence and an entrance / exit. A vertically downward extending support cylinder is connected to the platform plate, and a limiting ring is connected to the lower end of the support cylinder. The lower end face of the support cylinder is connected to the upper surface of the limiting ring. The inner diameter of the limiting ring is smaller than the inner diameter of the support cylinder. The limiting ring and the support cylinder are coaxially arranged. A vertically downward extending mating cylinder is connected to the inner edge of the limiting ring. The mating cylinder is coaxially arranged with the support cylinder. The mating cylinder is used to insert the steel casing of the cast-in-place pile and is adapted to the steel casing. The lower surface of the limiting ring is directly opposite the upper end face of the steel casing. The lower end face of the support cylinder is vertically opposite to the upper end face of the steel casing. An operating hole corresponding to the support cylinder is opened on the platform plate.

[0005] As a preferred embodiment, the support cylinder is provided with an overflow hole, which is located above the steel casing.

[0006] As a preferred embodiment, the platform is rectangular, with railings set on two short sides and one long side edge, and the other long side edge serving as an entrance / exit. The support cylinder and operating hole are located at the center of the platform, and the two ends of the platform form operating areas for workers to stand and work.

[0007] As a preferred embodiment, a sealing ring is attached to the bottom surface of the limiting ring, and the sealing ring is in a sealing fit with the top of the steel casing.

[0008] The beneficial effects of this utility model are: This utility model uses a support cylinder to support the platform plate, and uses the plug-in relationship between the matching cylinder and the steel casing to achieve a reliable connection between the support cylinder and the steel casing, so that the operating platform of this utility model can be quickly and directly assembled on the top of the steel casing, thus eliminating the need to build a large platform, greatly reducing the platform construction cost, and also improving the construction efficiency of the cast-in-place pile.

[0009] This invention also utilizes overflow holes on the support cylinder to guide the top layer wastewater during grouting out of the overflow holes and collect it, effectively avoiding the problem of wastewater from the top layer of concrete overflowing directly from the steel casing into natural water bodies during traditional grouting, thus preventing pollution of natural water bodies. Attached Figure Description

[0010] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a half-sectional structural diagram of the detachable micro-operating platform described in this utility model; Figure 2 yes Figure 1 Top view; Figure 3 This is a schematic diagram of the construction method for cast-in-place piles described in this utility model; Figures 1-3 In the middle: 1. Platform plate; 2. Fence; 3. Inlet and outlet; 4. Support cylinder; 5. Limiting ring; 6. Matching cylinder; 7. Steel protective cylinder; 8. Operating hole; 9. Overflow hole; 10. Sealing ring; 11. Slurry storage tank; 12. Overflow pipe. Detailed Implementation

[0011] The specific implementation scheme of this utility model will now be described in detail with reference to the accompanying drawings.

[0012] like Figure 1 and Figure 2 The diagram illustrates a detachable miniature operating platform for underwater cast-in-place pile construction. It includes a platform plate 1 with a fence 2 and an entrance / exit 3 along its edge. A vertically downward extending support cylinder 4 is connected to the platform plate 1. A limiting ring 5 is connected to the lower end of the support cylinder 4, with the lower end face of the support cylinder 4 connected to the upper surface of the limiting ring 5. The inner diameter of the limiting ring 5 is smaller than the inner diameter of the support cylinder 4, and the limiting ring 5 and the support cylinder 4 are coaxially arranged. A vertically downward extending mating cylinder 6 is connected to the inner edge of the limiting ring 5, and the mating cylinder 6 is coaxially arranged with the support cylinder 4. The outer diameter of the mating cylinder 6 is smaller than the inner diameter of the cast-in-place pile steel casing 7. The mating cylinder 6 is used to insert into and fits the cast-in-place pile steel casing 7. The lower surface of the limiting ring 5 faces the upper end face of the steel casing 7, and the lower end face of the support cylinder 4 is vertically aligned with the upper end face of the steel casing 7. An operating hole 8 corresponding to the support cylinder 4 is provided on the platform plate 1.

[0013] In use, the mating cylinder 6 is inserted into the upper opening of the corresponding steel casing 7, so that the mating cylinder 6 and the steel casing 7 form an insertion relationship, while the support cylinder 4 is placed on the top of the steel casing 7 through the limiting ring 5, thereby ensuring the axial and radial stability of the support cylinder 4 and achieving the technical goal of quick assembly and disassembly of the operating platform and stable and reliable operation.

[0014] An overflow hole 9 is provided on the support cylinder 4, and the overflow hole 9 is located above the steel protective cylinder 7.

[0015] The platform plate 1 is rectangular, with a fence 2 set on two short sides and one long side edge, and the other long side edge serving as an entrance / exit 3. The support cylinder 4 and the operating hole 8 are set in the center of the platform plate 1, and the two ends of the platform plate 1 respectively form operating areas for workers to stand and work.

[0016] A sealing ring 10 is attached to the bottom surface of the limiting ring 5, and the sealing ring 10 is sealed to the top of the steel casing 7.

[0017] like Figure 3 The diagram illustrates a method for constructing cast-in-place piles using the aforementioned detachable miniature operating platform, comprising the following specific steps: S1. Drive the lower end of a steel casing 7 of a pile to be cast into the hard soil layer at the bottom of the water, and ensure that the top of the steel casing 7 is exposed above the water surface.

[0018] S2. Drill holes in the soil layer inside the steel casing 7 to the target depth and remove sediment.

[0019] S3. The detachable micro-operating platform is hoisted to the top of the steel casing 7 and installed on the top of the steel casing 7, so that the mating cylinder 6 is inserted into the steel casing 7.

[0020] S4. The operator climbs onto the platform plate 1 and assists the lifting equipment in inserting the steel cage into the steel casing 7 through the operating hole 8.

[0021] S5. Set up a grout storage tank 11 near the steel casing 7 of the pile to be cast in. The upper opening of the grout storage tank 11 is lower than the overflow hole 9. Connect an overflow pipe 12 to the overflow hole 9 and extend the other end of the overflow pipe 12 into the grout storage tank 11.

[0022] S6. Pour concrete into the steel casing 7 until the concrete is higher than the upper edge of the steel casing 7. The volume of the concrete that is higher than the upper edge of the steel casing 7 is the same as the volume of the casing wall of the matching cylinder 6. The sewage above the concrete is discharged into the slurry storage tank 11 through the overflow hole 9 and the overflow pipe 12.

[0023] S7. After grouting is completed, the operators leave the detachable miniature operating platform. The hoisting equipment slowly lifts the detachable miniature operating platform away from the steel casing 7 and transfers it to the top of the steel casing 7 of the next pile to be poured. As the matching cylinder 6 is pulled out, the concrete above the steel casing 7 flows downward to fill the gap in the support cylinder 4.

[0024] The slurry storage tank 11 mentioned in step S5 is preferably another steel casing that has already completed step S4, so as to avoid sewage pollution of natural water sources, and the cement components in the sewage can be reused.

[0025] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some of the application examples, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A detachable miniature operating platform for underwater cast-in-place pile construction, comprising a platform plate (1), the edge of which is provided with a fence (2) and an entrance / exit (3), characterized in that, A vertically downward extending support cylinder (4) is connected to the platform plate (1). A limiting ring (5) is connected to the lower end of the support cylinder (4). The lower end face of the support cylinder (4) is connected to the upper surface of the limiting ring (5). The inner diameter of the limiting ring (5) is smaller than the inner diameter of the support cylinder (4). The limiting ring (5) and the support cylinder (4) are coaxially arranged. A vertically downward extending fitting cylinder (6) is connected to the inner edge of the limiting ring (5). The fitting cylinder (6) and the support cylinder (4) are coaxially arranged. The fitting cylinder (6) is used to insert the cast-in-place pile steel casing (7) and is adapted to the steel casing (7). The lower surface of the limiting ring (5) is directly opposite the upper end face of the steel casing (7). The lower end face of the support cylinder (4) is vertically opposite to the upper end face of the steel casing (7). An operating hole (8) corresponding to the support cylinder (4) is opened on the platform plate (1).

2. The detachable micro-operating platform according to claim 1, characterized in that, An overflow hole (9) is provided on the support cylinder (4), and the overflow hole (9) is located above the steel casing (7).

3. The detachable micro-operating platform according to claim 1, characterized in that, The platform plate (1) is rectangular, with a fence (2) set on two short sides and one long side edge, and the other long side edge serving as an entrance / exit (3). The support cylinder (4) and the operating hole (8) are set in the center of the platform plate (1), and the two ends of the platform plate (1) respectively form operating areas for workers to stand and work.

4. The detachable micro-operating platform according to claim 1, characterized in that, A sealing ring (10) is attached to the bottom surface of the limiting ring (5), and the sealing ring (10) is sealed to the top of the steel casing (7).

Images