Pile making method and special device and application of sinking tube pressure grouting pile

Abstract

The invention provides a method for making a pile by performing pile pressure irrigation through an immersed tube and a special device and application. The special device comprises a type A or type B pile tube, a pile point, a base plate, an inner hammer, a type A or type B pile driver and a type A, type B or type C lifter. The pile making method comprises a tube immersing and pulling method, a concrete pressure irrigation method and a soil loosening and hole leading method. By adopting the device and the method, the problems of difficulty in designing and making, over high concrete pumping pressure, noise pollution, influence of soil sticking to the pile tube on the operation of a subsequently-inserted reinforcement cage and blockage of the tube, and incapability of effectively exhausting in the conventional method for making a pile by performing pile pressure irrigation through an immersed tube and a special device are well solved. By adopting the device and the method, the operation of tube immersing and pulling, concrete pressure irrigation and the like is simplified, the pile making quality is improved, the comprehensive construction efficiency is increased, and a winged immersed tube pressure irrigation pile with higher bearing force can be made.

Description

technical field [0001] The invention relates to a pile-making method, a special device and an application of a pipe-immersed grouting pile, and belongs to the technical field of pile foundation construction. Background technique [0002] The following three applicants are all Chinese invention patents of Bi Jiandong, and they all involve pile-making methods and special devices for immersed pipe grouting piles: [0003] ① "Construction method and special device for the whole process of immersed pipe grouting pile" with the application number of 201110172486.3 and the application date of June 24, 2011 (hereinafter referred to as: A patent); [0004] ② "Composite pile pipes for the whole process of construction of immersed pipe grouting piles and its use method" (hereinafter referred to as: B patent) with application number 201110394473.0 and application date of December 2, 2011; [0005] ③ The application number is 201110424171.3, and the application date is December 9, 2011,...

AI Technical Summary

Problems solved by technology

[0007] The combined pile pipe provided by patent B designes the internal sinking pipe device and the concrete pressure irrigation device in the pile pipe, which is difficult to realize due to the limitation of the diameter of the pile pipe; the pumping pressure required at the initial stage is too high when the pipe is completely pumped for concrete jacking

[0008] In patent C, the anti-overturning requirements of the pile driver are difficult to meet, there is a lot of noise pollution to the environment, and the operation of inserting steel cages after the influence of soil on the pile pipes, etc.

[0009] Patent B and Patent C also have a common problem, that is, the diameter of the compression rod in the provided pile pipe is smaller, and the hollow diameter is smaller, so it is easy to be blocked by concrete and lose the venting effect.

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