Mounting and positioning device for lock catch steel pipe piles in cofferdam near river

Abstract

The utility model discloses a mounting and positioning device for lock catch steel pipe piles in a cofferdam near the river, which comprises the cofferdam near the river and steel pipe pile guide walls, guide wall brackets are symmetrically and fixedly arranged on the horizontal plane of the steel pipe pile guide walls, and limiting clamping grooves are symmetrically arranged between the steel pipe pile guide walls; the limiting clamping groove is in an L shape, the vertical portion of the limiting clamping groove is fixedly arranged on the vertical face of the steel pipe pile guide wall, the top of the limiting clamping groove is fixedly connected with the tail end of the guide wall support, and a gap used for fixing the lock catch is reserved between the horizontal portions of the limiting clamping groove. The utility model aims to provide the mounting and positioning device which can improve the standardized mounting of the lock catch steel pipe pile and improve the mounting efficiency and safety.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation construction within a riverside cofferdam, and particularly to an installation positioning device for interlocking steel pipe piles within a riverside cofferdam. Background Technique

[0002] With the acceleration of the urban construction process, more and more cities are vigorously carrying out the construction of tunnels crossing inland rivers. Among them, the construction quality of interlocking steel pipe piles within the riverside cofferdam on the shore section is one of the important links to ensure the project quality and construction progress. The steel pipe piles are connected and assembled with each other by interlocks. It is necessary to insert the interlock of a steel pipe pile into the interlock of an adjacent steel pipe pile to achieve closed water blocking. The processing and installation time of the interlocking steel pipe piles is relatively long, and there are relatively high requirements for the straightness of the interlock cutting, the straightness of the welding between the interlock and the steel pipe pile, and the installation accuracy. Generally, during installation, surveyors position and review at any time to adjust the installation angle of the interlocking steel pipe piles. It is difficult to avoid frequently lifting and lowering the steel pipe piles to adjust the installation angle, which may cause conditions such as interlock deformation and slot wall collapse, and is not conducive to the continuous installation of the interlocking steel pipe piles. Therefore, there is an urgent need for an installation positioning device that can improve the standardized installation of interlocking steel pipe piles, improve the installation efficiency and safety. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above deficiencies in the prior art, and aims to provide an installation positioning device that can improve the standardized installation of interlocking steel pipe piles, improve the installation efficiency and safety.

[0004] To achieve the above purpose, the utility model is realized by the following technical solutions:

[0005] An installation positioning device for interlocking steel pipe piles within a riverside cofferdam includes a riverside cofferdam and a steel pipe pile guide wall. Guide wall brackets are symmetrically and fixedly arranged on the horizontal planes of the steel pipe pile guide wall, and limiting card slots are symmetrically arranged between the steel pipe pile guide walls; the limiting card slots are L-shaped. The vertical part of the limiting card slot is fixedly arranged on the vertical surface of the steel pipe pile guide wall, and the top of the limiting card slot is fixedly connected to the end of the guide wall bracket. A gap for fixing the interlock is reserved between the horizontal parts of the limiting card slots.

[0006] Further, both the guide wall bracket and the limiting card slot are composed of angle steel.

[0007] Further, a cross beam is fixedly arranged between the right-angle ends of the limiting card slots.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] The utility model adopts a positioning device for the locked steel pipe piles within the riverfront cofferdam. After adding the positioning device, surveyors can quickly confirm the installation positions of the locked steel pipe piles, avoiding the need for surveyors to frequently re-measure during the installation of locked steel pipe piles in the past, which consumed a lot of time. It effectively reduces the number of adjustments during the installation of locked steel pipe piles, greatly reduces the probability of hole collapse and deformation of the locked cut of the steel pipe piles caused by repeated adjustment of the locked steel pipe piles, saves construction costs, and brings economic benefits to the enterprise. Description of the Drawings

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is a connection diagram of the lock and the steel pipe in the utility model;

[0012] Figure 3 It is a plan layout diagram of the locked steel pipe pile system within the riverfront cofferdam of the utility model.

[0013] Reference Signs:

[0014] 1 - Riverfront cofferdam, 2 - Steel pipe pile guide wall, 3 - Steel pipe, 4 - Lock, 5 - Guide wall support, 6 - Limit card slot, 7 - Cross beam. Detailed Embodiment

[0015] The following will refer to the drawings and combine with embodiments to detail the utility model.

[0016] As Figure 1 and Figure 2 shown, a positioning device for installing locked steel pipe piles within a riverfront cofferdam includes a riverfront cofferdam 1 and a steel pipe pile guide wall 2. Guide wall supports 5 are symmetrically and fixedly arranged on the horizontal planes of the steel pipe pile guide wall 2, and limit card slots 6 are symmetrically arranged between the steel pipe pile guide walls 2; the limit card slots 6 are L-shaped, the vertical parts of the limit card slots 6 are fixedly arranged on the vertical surfaces of the steel pipe pile guide wall 2, and the tops of the limit card slots 6 are fixedly connected to the ends of the guide wall supports 5. A gap for fixing the lock 4 is reserved between the horizontal parts of the limit card slots 6.

[0017] Among them, both the guide wall support 5 and the limit card slot 6 are composed of angle steel. A cross beam 7 is fixedly arranged between the right-angle ends of the limit card slots 6 to make the connection between the limit card slots 6 firm, preventing the locked steel pipe piles from shifting and rotating during the installation process.

[0018] As Figures 1 to 3 shown, the riverfront cofferdam 1 in the utility model is a formwork bag cofferdam close to the river surface, with a total of 12 layers of formwork bags and a total of 16999.5 m 3 of filled sand. The construction method for installing and positioning the locked steel pipe piles is as follows:

[0019] (1) Install a positioning device on the steel pipe pile guide wall 2, and use 4 expansion bolts to fix the guide wall bracket 5 to the horizontal plane of the steel pipe pile guide wall 2, so that the limit card slot 6 fits the vertical plane of the steel pipe pile guide wall 2.

[0020] (2) Install the first lock-pile steel pipe pile, and always keep the lock 4 aligned with the reserved gap between the horizontal parts of the limit card slots 6 during the installation process.

[0021] (3) After the installation of the first lock-pile steel pipe pile is completed, keep the positioning device fixed on the steel pipe pile guide wall 2. Align the lock 4 of the second lock-pile steel pipe pile with the gap of the limit card slot 6 and fit it with the lock 4 of the first lock-pile steel pipe pile. The construction method of the subsequent lock-pile steel pipe piles is the same as above.

[0022] The utility model greatly reduces the number of adjustments during the installation of the lock-pile steel pipe pile, saves construction time and improves installation accuracy. While improving economic benefits, it ensures the construction quality of the lock-pile steel pipe pile in the riverside cofferdam 1. Moreover, the positioning device of the lock-pile steel pipe pile is convenient to move, fast and safe.

[0023] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A locking steel pipe pile installation and positioning device in a riverside cofferdam, comprising a riverside cofferdam (1) and a steel pipe pile guide wall (2), characterized in that: The horizontal surfaces of the steel pipe pile guide walls (2) are symmetrically fixed with guide wall brackets (5), and the limit slots (6) are symmetrically arranged between the steel pipe pile guide walls (2); the limit slots (6) are L-shaped, the vertical part of the limit slots (6) is fixedly arranged on the vertical surface of the steel pipe pile guide wall (2), and the top of the limit slots (6) is fixedly connected to the end of the guide wall bracket (5), and a gap for fixing the lock buckle (4) is reserved between the horizontal parts of the limit slots (6).

2. The device for installing and positioning locking steel pipe piles in a riverside cofferdam according to claim 1 is characterized in that: The wall guide bracket (5) and the limit slot (6) are both made of angle steel.

3. The device for installing and positioning locking steel pipe piles in a riverside cofferdam according to claim 1 is characterized in that: A crossbeam (7) is fixedly arranged between the right-angle ends of the position-limiting slot (6).

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