Guide device for offshore steel pipe pile construction

Abstract

The utility model belongs to the technical field of steel pipe pile construction, and particularly relates to an offshore steel pipe pile construction guiding device. The device is installed on extended beret pieces on the two sides of an erected steel trestle and comprises an upper-layer guide frame and a lower-layer guide frame, the upper-layer guide frame is fixedly installed on the upper surfaces of the beret pieces, and the lower-layer guide frame is fixedly installed on the lower surfaces of the beret pieces and is aligned with the upper-layer guide frame. Each of the upper-layer guide frame and the lower-layer guide frame comprises two parallel walkway steel channels, the two ends of each walkway steel channel are fixedly connected to extended Bailey pieces on the two sides of the steel trestle respectively, and a plurality of fixed limiting steel channels and a plurality of movable limiting steel channels are fixedly connected between the two walkway steel channels; the adjacent fixed limiting channel steel and movable limiting channel steel and the two aisle channel steel jointly form a steel pipe pile limiting hole. According to the steel trestle, the steel pipe piles can be vertically driven into the water bottom through the steel pipe pile limiting holes, so that deflection is reduced, and the steel trestle has better bearing capacity.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe pile construction, and in particular relates to an offshore steel pipe pile construction guide device. Background Art

[0002] The steel trestle is a temporary platform built for the construction of the main bridge. Its main purpose is to provide a path and platform for material transportation, mechanical hoisting and personnel construction during the construction of the main bridge. The construction of a steel trestle on the water is a process from scratch. It starts with the shore land as the working surface and piling in the water to install the steel trestle to form a stable platform. The mechanical personnel then use this platform as the basis to continue piling forward and install the steel trestle. Therefore, it is particularly important to ensure the accuracy of the steel pipe pile driving of the foundation bearing part during the construction of the steel trestle. However, in the actual piling process, the pipe piles are very likely to be deflected, which seriously affects the stability of the steel trestle. Therefore, it is urgent to design a guide device for offshore steel pipe pile construction. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the following technical solutions are specifically disclosed:

[0004] A guide device for offshore steel pipe pile construction is installed on the Bailey plates extended on both sides of the erected steel trestle, and includes an upper guide frame and a lower guide frame. The upper guide frame is fixedly installed on the upper surface of the Bailey plate, and the lower guide frame is fixedly installed on the lower surface of the Bailey plate and aligned with the upper guide frame. The upper guide frame and the lower guide frame each include two parallel walkway channel steels, and the two ends of the walkway channel steel are respectively fixedly connected to the Bailey plates extended on both sides of the steel trestle. A plurality of fixed limit channel steels and a plurality of movable limit channel steels are fixedly connected between the two walkway channel steels. The adjacent fixed limit channel steels and movable limit channel steels and the two walkway channel steels together constitute a steel pipe pile limit hole.

[0005] Furthermore, the upper guide frame and the lower guide frame are both connected to the Bailey plate by bolts.

[0006] Furthermore, the fixed limiting channel steel is welded between the two walkway channel steels, and the movable limiting channel steel is connected to the two walkway channel steels by bolts.

[0007] Furthermore, guardrails are fixedly connected to both sides of the upper guide frame.

[0008] Furthermore, the guardrail includes a plurality of guardrail posts and a plurality of guardrail beams, the bottom ends of the plurality of guardrail posts are welded to the walkway channel steel, and the plurality of guardrail posts are connected in series through a plurality of guardrail beams.

[0009] Furthermore, the guardrail columns are channel steels, and the guardrail crossbeams are round steel pipes.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. When the first step of constructing a steel trestle at sea is to drive the steel pipe piles, the limit holes of the steel pipe piles can ensure that the steel pipe piles are driven vertically into the bottom of the water, thereby reducing the deflection and making the steel trestle have better bearing capacity;

[0012] 2. When the steel pipe piles constructed in the steel trestle project are long, the transport vehicles and crawler cranes cannot transport and lift a whole steel pipe pile at one time. The steel pipe piles need to be driven in sections. During the piling process, the first section is first inserted into the water through the guide device, and then the second section is hoisted and docked with the first section. The docking port is on the guide device, which can be used as a working platform for the construction workers and ensure the safety of the construction workers at the same time.

[0013] 3. During the construction of the steel trestle project, it is necessary to frequently move forward to drive steel pipe piles. The guide device can be flexibly disassembled and transferred. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a plan view of the utility model during construction.

[0015] Figure 2 It is the elevation drawing of the utility model during construction.

[0016] Figure 3 It is the front view of the upper guide frame of the utility model.

[0017] Figure 4 It is a top view of the upper guide frame of the utility model.

[0018] Figure 5 It is a side view of the upper guide frame of the utility model.

[0019] Figure 6 It is the front view of the middle and lower guide frame of the utility model.

[0020] Figure 7 It is a top view of the middle and lower guide frame of the utility model.

[0021] Figure 8 It is a side view of the middle and lower guide frame of the utility model.

[0022] 1-steel trestle, 2-Bailey plate, 3-steel pipe pile, 4-upper guide frame, 5-lower guide frame, 6-guardrail column, 7-guardrail beam, 8-walkway channel steel, 9-movable limit channel steel, 10-fixed limit channel steel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-8 A guide device for offshore steel pipe pile construction is installed on the Bailey pieces 2 extended on both sides of the erected steel trestle 1, and includes an upper guide frame 4 and a lower guide frame 5. The upper guide frame 4 is fixedly installed on the upper surface of the Bailey piece 2, and the lower guide frame 5 is fixedly installed on the lower surface of the Bailey piece 2 and aligned with the upper guide frame 4. The upper guide frame 4 and the lower guide frame 5 each include two parallel walkway channel steels 8, and the two ends of the walkway channel steel 8 are respectively fixedly connected to the Bailey pieces 2 extended on both sides of the steel trestle 1. A plurality of fixed limit channel steels 10 and a plurality of movable limit channel steels 9 are fixedly connected between the two walkway channel steels 8. The adjacent fixed limit channel steels 10 and movable limit channel steels 9 and the two walkway channel steels 8 together constitute a steel pipe pile limit hole.

[0025] In this embodiment, the steel pipe pile limiting holes on the upper guide frame 4 and the corresponding steel pipe pile limiting holes on the lower guide frame 5 together limit the steel pipe piles 3, thereby ensuring that the steel pipe piles 3 can be accurately and vertically driven into the bottom of the water.

[0026] In this embodiment, the upper guide frame 4 and the lower guide frame 5 are both connected to the Bailey plate 2 by bolts, so as to facilitate installation and disassembly.

[0027] In this embodiment, the fixed limiting channel steel 10 is welded between the two walkway channel steels 8, and the movable limiting channel steel 9 is connected to the two walkway channel steels 8 by bolts.

[0028] In this embodiment, guardrails are fixedly connected to both sides of the upper guide frame 4 to provide protection for construction workers.

[0029] In this embodiment, the guardrail includes a plurality of guardrail posts 6 and a plurality of guardrail beams 7. The bottom ends of the plurality of guardrail posts 6 are welded to the walkway channel steel 8, and the plurality of guardrail posts 6 are connected in series via a plurality of guardrail beams 7.

[0030] In this embodiment, the guardrail column 6 is a channel steel, and the guardrail beam 7 is a round steel pipe.

[0031] The construction process of this utility model is:

[0032] The erected steel trestle 1 is used as the basic construction platform, and the Bailey pieces 2 on both sides of the steel trestle 1 are extended as brackets. The position of the next span of steel pipe piles 3 is measured and laid out, and then the lower guide frame 5 is hoisted to the bottom of the Bailey piece 2, moved to the steel pipe pile guide position, and then fixed with the Bailey piece 2 with bolts, and then the upper guide frame 4 is hoisted to the steel pipe pile guide position on the upper part of the Bailey piece 2, so that the fixed limit channel steel 10 on the upper guide frame 4 and the lower guide frame 5 is aligned, and then the upper guide frame 4 is fixed with the Bailey piece 2, and the steel pipe pile 3 is constructed after being fixed. , relying on the limit channel steel of the upper and lower guide frames, and cooperating with the measuring tools to measure and adjust the position of the steel pipe pile 3, the steel pipe pile 3 is vertically guided to the bottom of the water, which is convenient for the subsequent piling operation of the steel pipe pile 3. At the same time, the steel pipe pile 3 of the general project is relatively long and cannot be hoisted at one time. It needs to be hoisted in sections. The guide device can also be used to first fix and support the first section of the steel pipe pile, and then hoist the second section of the steel pipe pile to dock with the first section. The guardrail of the upper guide frame 4 can well ensure the safety of the construction personnel and complete the docking work of the steel pipe pile 3. After the piling is completed, the upper and lower guide frames are disassembled and hoisted to the rear of the platform, and then the other parts of the steel trestle 1 are installed. After the installation is completed, the construction machinery moves forward and installs the next span. This cycle can effectively ensure the construction progress of the project.

[0033] The utility model uses the erected steel trestle 1 as a stable offshore construction platform; the Bailey sheet 2 is used as a bracket for placing the guide frame; the upper and lower guide frames can be processed using existing materials of the steel trestle project under construction, and there is no need to purchase other materials separately. For example, the guardrail used by the upper guide frame 4 is made of the same material as the guardrails on both sides of the steel trestle 1, and the steel pipe pile limiting holes on the guide frame can be slightly enlarged by a few millimeters according to the diameter of the steel pipe pile 3 for processing, and the steel pipe pile 3 diameter of the steel trestle 1 of the specific project can be processed in advance.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An offshore steel pipe pile construction guide device, installed on the Bailey plates extended on both sides of the erected steel trestle, characterized in that: It includes an upper guide frame and a lower guide frame, the upper guide frame is fixedly installed on the upper surface of the Bailey plate, the lower guide frame is fixedly installed on the lower surface of the Bailey plate and is aligned with the upper guide frame, the upper guide frame and the lower guide frame each include two parallel walkway channel steels, the two ends of the walkway channel steel are respectively fixedly connected to the Bailey plates extended on both sides of the steel trestle, a number of fixed limit channel steels and a number of movable limit channel steels are fixedly connected between the two walkway channel steels, and the adjacent fixed limit channel steels and movable limit channel steels and the two walkway channel steels together constitute a steel pipe pile limit hole.

2. The offshore steel pipe pile construction guide device according to claim 1, characterized in that: The upper guide frame and the lower guide frame are both connected to the Bailey plate through bolts.

3. The offshore steel pipe pile construction guide device according to claim 1, characterized in that: The fixed limiting channel steel is welded between the two walkway channel steels, and the movable limiting channel steel is connected to the two walkway channel steels by bolts.

4. The offshore steel pipe pile construction guide device according to claim 1, characterized in that: Guardrails are fixedly connected to both sides of the upper guide frame.

5. The offshore steel pipe pile construction guide device according to claim 4, characterized in that: The guardrail comprises a plurality of guardrail posts and a plurality of guardrail beams, the bottom ends of the plurality of guardrail posts are welded to the walkway channel steel, and the plurality of guardrail posts are connected in series through a plurality of guardrail beams.

6. The offshore steel pipe pile construction guide device according to claim 5, characterized in that: The guardrail columns are channel steels, and the guardrail crossbeams are round steel pipes.

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