Positioning pile-driving guide frame and construction method thereof

Abstract

The invention discloses a positioning pile-driving guide frame. The positioning pile-driving guide frame comprises a rack and a construction platform rotary plate used for driving the rack to rotate. An upper platform and a lower platform are arranged at the upper end and the lower end of the rack correspondingly. Skirt pile grippers are arranged on the upper platform and the lower platform correspondingly, the skirt pile gripper arranged on the upper platform is the upper platform skirt pile gripper, and the skirt pile gripper arranged on the lower platform is the lower platform skirt pile gripper. The center of an abdominal cavity of the upper platform skirt pile gripper coincides with the central axis of the rack. A driving mechanism is arranged between the lower platform skirt pile gripper and the lower platform and drives the lower platform skirt pile gripper to horizontally move. According to the positioning pile-driving guide frame, continuous inserting, driving and sinking conducted on inclined pile groups in abyssal regions are achieved, and the advantages of being simple in structure, convenient to construct and high in efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a positioning piling guide frame and a construction method thereof. Background technique [0002] In the prior art, the method for the construction of large-diameter pipe piles in deep water areas is as follows: [0003] 1) Floating crane lifting construction: the floating crane first lifts the pipe pile and inserts the steel pipe into the bottom soil layer by its own weight, then the floating crane lifts the hydraulic hammer and places it on the top of the pipe pile for hammering operation. Pile driving conditions that require accurate positioning are not suitable for pipe pile construction of bridge piers, and their scope of application is narrow; [0004] 2) Large-scale piling ship directly inserts and drives construction: during operation, the piling ship anchors at an appropriate position for positioning, after the transport barge transports the pipe piles in pl...

AI Technical Summary

Problems solved by technology

[0003] 1) Floating crane lifting construction: the floating crane first lifts the pipe pile and inserts the steel pipe into the bottom soil layer by its own weight, then the floating crane lifts the hydraulic hammer and places it on the top of the pipe pile for hammering operation. Pile driving conditions that require accurate positioning are not suitable for pipe pile construction of bridge piers, and their scope of application is narrow;

[0004] 2) Large-scale piling ship directly inserts and drives construction: during operation, the piling ship anchors at an appropriate position for positioning, after the transport barge transports the pipe piles in place, the piling ship twists and anchors to shift, the front house hangs the pipe piles, and the piling ship lifts the pipe piles After the twisted anchor is moved to the original position, the pile driver adjusts the angle of the pile frame, and uses GPS positioning equipment to locate the pipe pile. After positioning, the hydraulic hammer begins to hammer the pipe pile until the pipe pile reaches the designed position. There are the following problems: ① Must rely on GPS Positioning, accurate positioning cannot be completed in areas where GPS cannot be used; ②The positioning of inclined piles is not accurate; ③It is not possible to insert and drive long piles (generally less than 100 meters); ④It is not suitable for pile driving operations with a large range;

The construction of 6 pipe piles at a pier can only be completed 6 times in this way, the construction is difficult and inefficient, and it is difficult to guarantee the construction period

Images