A method of hole reaming and sinking with static pile driver

Abstract

The invention discloses a chambering and pile sinking construction method for a static pile driver. The method comprises the steps that the static pile driver carries out primary pile pressing, drill pile holding and mounting are carried out, chambering is carried out, and the static pile driver carries out final pile pressing. The chambering and pile sinking construction method for the static pile driver solves the problem that pile sinking is difficult in a sand layer, a hard soil layer, a differentiation layer and other soil layers where piles cannot be pressed easily. According to the method, chambering is carried out first, then pile sinking is carried out, and the method has the advantages of being small in noise, small in additional weight, little in squeezed soil, simple in operation and simple and reliable in structure.

Description

technical field [0001] The invention belongs to the technical field of drilling machinery equipment, drilling power machinery and transmission machinery of mechanical engineering and civil engineering, and relates to a large-scale horizontal directional drilling machine, in particular to a static pile driver reaming pile sinking method. Background technique [0002] According to its working principle, pile machinery can be divided into four categories: impact type, vibration type, static pressure type and hole-forming pouring type. Pile machinery is used to complete the penetration of prefabricated piles into the soil layer, including the operation process of driving, sinking, pressing, pulling out or pouring piles into holes, etc. It has been widely used in bridges, buildings, docks and Prefabricated pile construction in foundation construction such as ports. With the development of piling machinery, the piling hammer has developed from the traditional drop hammer, steam h...

AI Technical Summary

Problems solved by technology

The main disadvantages are: when encountering hard soil layers, sand layers, differentiated layers, and some soil layers that are not easy to press piles, greater penetration cannot be achieved, and the existing static presses cannot further press piles down;

Its main disadvantages are: it produces large noise and vibration, which directly affects the surrounding buildings. It is generally not suitable for use in urban areas. Some countries and cities have banned the use of hammer-type pile sinking construction in urban areas.

The main disadvantages of this construction method are: hidden works, difficult quality control, and a large amount of mud waste generated, difficult to deal with, high requirements for environmental protection, and requirements for the passing standards of on-site roads

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