Connection structure used for pull-out resistant pile foundation and connecting method thereof

Abstract

The invention discloses a connection structure used for a pull-out resistant pile foundation, which comprises two square end plates, wherein the two square end plates are fixedly arranged on two square pull-out resistant pile heads respectively; a plurality of bar-shaped mechanical connecting cards are clamped outside the two square end plates at the joint of the two square pull-out resistant pile heads; and the bar-shaped mechanical connecting cards are fixedly connected to the square end plates through a plurality of bolts to ensure that an upper pull-out resistant pile and a lower pull-out resistant pile are connected together. The invention aims to overcome the defects in the prior art and provides the connection structure which has a simple structure, can quickly and fixedly connect the two pull-out resistant piles together, and is safe and reliable; and the invention has the other aim of providing a method for connecting the two pull-out resistant piles together by adopting the connection structure.

Description

technical field [0001] The invention relates to a connection structure for uplift pile foundations; the invention also relates to a method for connecting uplift piles using the connection structure. Background technique [0002] With the improvement of the importance of modern buildings and the continuous increase of building height, higher requirements are placed on the bearing capacity of the foundation. The natural foundation can no longer bear the load from the upper building, and concrete piles are used to make The foundation piles of the foundation are formed by pressing the piles into the ground with a pile driver to allow the upper part of the foundation piles to carry the building. In the past, the concrete pipe pile foundation of building construction mainly bears the vertical compressive load, but at present, many pile foundations have to bear the vertical compressive load and the vertical pull-out load at the same time. In recent years, some projects have used p...

AI Technical Summary

Problems solved by technology

Due to the difference in the level of pile foundation construction units and personnel on site, the quality of welding between pile heads and pile heads is quite different. The quality of welding directly affects the use of uplift piles, causing safety hazards to the project

On the other hand, this welding method takes a long time, which affects the progress of the project and increases the workload of the construction personnel.

Because after the pile head is welded to the pile head, it takes 10 to 15 minutes to wait for the problem at the welding point to cool down before proceeding to sink the pile, which wastes a lot of time and affects the efficiency of construction

At the same time, many pile foundation construction workers continued to sink the piles without waiting for the weld to cool down, which reduced the quality of the weld.

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