Tool rack for assisting in forming steel pipe pile and anchor pile and construction method

Abstract

The tool rack comprises a plurality of rack bodies arranged on the periphery of the steel pipe pile, a distribution beam temporary platform is arranged at the top end of each rack body, the rack bodies are fixed through connecting systems, and anchorage systems are connected to the rack bodies. The tool rack is reasonable in structural design, convenient to use and reliable in pile forming effect, after a seabed is scanned in advance and an anchorage is arranged, the tool rack can be accurately positioned, the top of the tool rack is connected with the anchorage, the bottom of the tool rack is wrapped by a manual covering layer, the tool rack can be firmly fixed, and it is ensured that the stress requirement is met. Under the environment of a large-angle inclined rock stratum, the steel pipe pile can be reliably connected with the tool frame after being launched by means of the tool frame, the steel pipe pile can be stable, meanwhile, structural components are common, the field operation process is conventional, the pile forming effect is reliable, dismounting is convenient, and the device is suitable for pile forming under the environments of deep water, bare rock and the large-angle inclined rock stratum.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge construction, and in particular relates to a tool frame and a construction method for assisting steel pipe piles and anchor piles in forming piles. Background Art

[0002] In the construction of bridges in deep water, bare rock, and large-angle inclined rock environments, due to the great depth and high flow rate of the sea area, temporary projects and main projects are subject to great water flow and wave forces. At the same time, in the bare rock geological environment, the bedrock bearing capacity is high, it is difficult to drive steel pipe piles into the rock layer, and it is difficult to form effective constraints at the bottom. Another impact brought by the large-angle inclined rock layer is that after the steel pipe piles are planted in the water, they are unstable, which brings great hidden dangers to the subsequent insertion into the rock and construction of anchor piles. The usual practice is to use the crawler crane "fishing method" to insert steel pipe piles, set longitudinal beams on the top of the steel pipe piles, form a temporary platform and then construct anchor piles. In the previous "fishing method" construction, after the crawler crane hoisted the steel pipe piles, the steel pipe piles could stand firmly and enter a certain depth of the soil layer under their own gravity and the pile hammer, relying on their own bearing capacity to bear the load. In deep water, bare rock, and large-angle inclined rock environments, there are problems with the pile's unstable standing and difficulty in driving into the rock formation. In addition, it is difficult to form effective constraints at the bottom, which affects the pile's bearing capacity and poses a huge safety hazard. Summary of the invention

[0003] In view of this, the invention aims to overcome the defects in the prior art and proposes a tool frame and a construction method for assisting steel pipe piles and anchor piles in forming piles.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A tool frame for assisting steel pipe piles and anchor piles in forming piles comprises a plurality of frames arranged on the periphery of the steel pipe piles, a temporary distribution beam platform is arranged on the top of the frames, the frames are fixed by connecting systems, and an anchoring system is connected to the frames.

[0006] Furthermore, the frame is made of steel pipes.

[0007] Furthermore, each frame is arranged at an incline, with its upper end close to the steel pipe pile and its lower end away from the steel pipe pile.

[0008] Furthermore, four frames are evenly distributed around the outer periphery of the steel pipe column.

[0009] A construction method for forming steel pipe piles and anchor piles using the tool rack comprises the following steps:

[0010] S1. Make tool racks and anchoring systems, and scan the seabed location;

[0011] S2. Position according to the designed position and set up the anchor system;

[0012] S3. Lift the tool rack and lower it;

[0013] S4, the anchoring system is connected to the tool rack, a mold bag is thrown at the bottom of the tool rack, and underwater concrete is poured to form an artificial cover layer;

[0014] S5. The tool rack is unhooked from the crane, and the steel pipe pile is hoisted and placed on the seabed;

[0015] S6, connecting the steel pipe pile to the tool rack;

[0016] S7. Hoist the drilling rig and place it on the distribution beam platform on the top of the tool rack to construct the anchor piles corresponding to the steel pipe piles.

[0017] Further, the anchoring system is connected to the top of the tool rack.

[0018] Furthermore, each frame of the tool rack is arranged at an angle, with the upper end thereof being close to the steel pipe pile and the lower end being far away from the steel pipe pile.

[0019] Furthermore, the tool rack and the steel pipe column are hoisted by a floating crane.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The tool rack provided by the invention has a reasonable structural design, is easy to use, and has a reliable pile-forming effect. After pre-scanning the seabed and setting the anchor, the tool rack can be accurately positioned, the top of the tool rack is connected to the anchor, and the bottom is wrapped by an artificial covering layer, which can be firmly fixed to ensure that the force requirements are met. In a large-angle inclined rock formation environment, relying on the tool rack, the steel pipe pile can be reliably connected to the tool rack after being launched into the water, and it can be stable itself. Relying on the temporary platform of the distribution beam at the top of the tool rack, a drilling rig can be placed on the platform to construct anchor piles corresponding to the steel pipe piles, thereby reducing the impact of the difficulty of driving the steel pipe piles into the rock formation. After the anchor piles are constructed, an embedding point is formed under the steel pipe piles to ensure that the temporary project meets the force requirements. At the same time, the invention has a reasonable structural design, common structural components, conventional on-site operation procedures, reliable pile-forming effects, and convenient dismantling, and is suitable for pile formation in deep water, bare rock, and large-angle inclined rock formation environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 Elevation view of the structure created for the present invention;

[0024] Figure 2 Create a top view for the present invention;

[0025] Figure 3 It is a flow chart of the construction method of the present invention. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] A tool frame for assisting steel pipe piles and anchor piles in forming piles, such as Figures 1 to 3 As shown, it includes several frames arranged on the periphery of the steel pipe piles, a temporary distribution beam platform 1 is provided on the top of the frame, the frames are fixed by a connecting system 4, and an anchoring system is connected to the frame.

[0031] Typically, the frame is made of steel pipe 2. In a further improvement, each frame is arranged at an angle, with its upper end close to the steel pipe pile and its lower end away from the steel pipe pile. As an example, four frames are evenly distributed around the steel pipe column. In an optional embodiment, a connection portion 3 is provided on the lower end surface of the temporary platform of the distribution beam, and each inclined steel pipe is respectively connected and fixed to the corresponding connection portion, thereby improving the installation accuracy of the tool rack structural parts and ensuring the overall structural stability of the tool rack.

[0032] A construction method for forming steel pipe piles and anchor piles using the tool rack comprises the following steps:

[0033] S1. Make a tool rack 12 and an anchoring system 6, and scan the seabed position. After pre-scanning the sea (river) bed position to obtain data, the length of the inclined steel pipe of the tool rack at each design position can be accurately determined to ensure the posture of the tool rack after launching, which is conducive to the tool rack being properly embedded in the preset position, facilitating overall force and subsequent construction of anchor piles 7.

[0034] S2. Position according to the designed position and set up the anchor system;

[0035] S3. Lift the tool rack and lower it;

[0036] S4, the anchoring system is connected to the tool rack, and mold bags 5 are thrown at the bottom of the tool rack to pour underwater concrete to form an artificial covering layer to ensure the stability of the tool rack structure; mold bags are thrown at the bottom of the tool rack, and underwater concrete is poured between the mold bags. The underwater concrete flows and fills the gaps between the mold bags. After the underwater concrete reaches a certain strength, the mold bag is connected to the tool rack and the mold bag is connected to the sea (river) bed as a whole to form an artificial covering layer.

[0037] S5, the tool rack is unhooked from the crane, and the steel pipe pile 11 is hoisted and placed on the seabed using the tool rack as a guide;

[0038] S6, connecting the steel pipe pile to the tool rack;

[0039] S7, hoist the drilling rig 9 and place it on the top distribution beam platform of the tool rack, construct the anchor piles corresponding to the steel pipe piles, and extend the lower part of the anchor piles into the bare rock layer 10. Finally, hoist the remaining upper temporary structure 8 to complete the construction of this span structure.

[0040] It should be noted that the method of this aspect is also applicable to steel pipe piles and anchor piles on the riverbed. Each frame of the tool rack is arranged obliquely, with its upper end close to the steel pipe pile and its lower end away from the steel pipe pile. The tool rack and the steel pipe column are hoisted by a floating crane 13. In order to improve the stability of the tool rack, the anchor system is connected to the top of the tool rack, and the top of the tool rack is connected to the anchor by a wire rope.

[0041] The tool rack provided by the invention has a reasonable structural design, is easy to use, and has a reliable pile-forming effect. After pre-scanning the seabed and setting the anchor, the tool rack can be accurately positioned, the top of the tool rack is connected to the anchor, and the bottom is wrapped by an artificial covering layer, which can be firmly fixed to ensure that the force requirements are met. In a large-angle inclined rock formation environment, relying on the tool rack, the steel pipe pile can be reliably connected to the tool rack after being launched into the water, and it can be stable. Relying on the temporary platform of the distribution beam at the top of the tool rack, a drilling rig can be placed on the platform to construct anchor piles corresponding to the steel pipe piles, thereby reducing the impact of the difficulty of driving the steel pipe piles into the rock formation. After the anchor piles are constructed, an embedding point is formed under the steel pipe pile to ensure that the temporary project meets the force requirements. At the same time, the invention has a reasonable structural design, the structural components are all common components, the on-site operation process is conventional, the pile-forming effect is reliable, and the dismantling is convenient. It is suitable for pile formation in deep water, bare rock, and large-angle inclined rock formation environments.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool rack for assisting steel pipe piles and anchor piles, characterized in that: It includes several frames arranged on the periphery of the steel pipe piles, a temporary distribution beam platform is provided on the top of the frames, the frames are fixed by connecting systems, and the frames are connected with anchoring systems.

2. A tool rack for auxiliary steel pipe piles and anchor piles according to claim 1, characterized in that: The frame is made of steel pipe.

3. A tool rack for auxiliary steel pipe piles and anchor piles according to claim 1 or 2, characterized in that: Each frame is arranged obliquely, with its upper end close to the steel pipe pile and its lower end away from the steel pipe pile.

4. A tool rack for auxiliary steel pipe piles and anchor piles according to claim 1 or 2, characterized in that: There are 4 frames evenly distributed around the steel pipe column.

5. A construction method for forming steel pipe piles and anchor piles using the tool rack according to claim 1, characterized in that: The steps include: S1. Make tool racks and anchoring systems, and scan the seabed location; S2. Position according to the designed position and set up the anchor system; S3. Lift the tool rack and lower it; S4, the anchoring system is connected to the tool rack, a mold bag is thrown at the bottom of the tool rack, and underwater concrete is poured to form an artificial cover layer; S5. Hoist the steel pipe piles and place them on the seabed; S6, connecting the steel pipe pile to the tool rack; S7. Hoist the drilling rig and place it on the distribution beam platform on the top of the tool rack to construct the anchor piles corresponding to the steel pipe piles.

6. A method for constructing steel pipe piles and anchor piles according to claim 5, characterized in that: The anchoring system is connected to the top of the tool rack.

7. A method for constructing steel pipe piles and anchor piles according to claim 5, characterized in that: Each frame of the tool rack is arranged obliquely, with the upper end close to the steel pipe pile and the lower end away from the steel pipe pile.

8. A method for constructing steel pipe piles and anchor piles according to claim 5, characterized in that: Use floating crane to hoist tool rack and steel pipe column.

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