Concrete pile construction method

Abstract

The invention provides a construction method for a concrete pile, and the operations of hole forming, soil taking and pile body construction are finished easily and efficiently. The construction method for the concrete pile includes the steps that (1) construction of a pile hole is carried through either the method that an outer pipe is sunk firstly, then soil in the outer pipe is taken out section by section or the method that sinking of the outer pipe and taking of soil are carried out section by section; (2) a pile end is processed through one of multiple methods according to the properties of the soil layer and the requirement for upper portion loads; (3) construction of a pile body is carried out through one of multiple methods according to the properties of the soil layer and the structural form.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to pile construction technology. Background technique [0002] In the foundation treatment of buildings, it is often encountered that there are dense sandy soil layers, gravel soil layers, loess layers, gravel and pebble layers, etc. at a certain depth below the surface, and the hardness of these soil layers is uneven. , Uneven thickness. This geological condition makes it very difficult to form holes in the pile body during pile foundation construction. At present, it is difficult to form pile holes to the designed depth with the commonly used methods such as vibratory sinking, static pressure or rotary drilling. Although rotary drilling rigs and manual digging can form holes in relatively hard soil layers, because there is no pile hole wall, it is easy to cause the hole wall to collapse and shrink, especially when the groundwater content is high, the pile hole will quickly collap...

AI Technical Summary

Problems solved by technology

This geological condition makes it very difficult to form holes in the pile body during pile foundation construction. At present, the commonly used methods such as vibration sinking, static pressure or rotary drilling are basically difficult to form pile holes to the design depth.

Although rotary drilling rigs and manual digging can form holes in relatively hard soil layers, because there is no pile hole wall, it is easy to cause the hole wall to collapse and shrink, especially when the groundwater content is high, the pile hole will quickly collapse. Ingress of water, unable to carry out the next step of construction

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