Concrete pile construction device and its construction method

Abstract

The object of the present invention is to provide a construction device for concrete piles, which includes a circular casing, a ramming sleeve, a ramming hammer, a feeding pipe, and an impact hammer tip, which are divided into two structural forms, I and II, and are characterized in that The first form is that the top of the casing is provided with a ramming sleeve and a ramming hammer, the bottom of the casing is provided with an impact hammer tip, the inside of the casing is provided with a feeding pipe, and a discharge port is set at the impact hammer tip. Adding additional parts to the casing to form a special-shaped casing; the second form is to set up two ways of hammering the casing, the bottom of the casing is provided with an impact hammer tip, and the outer wall of the casing is provided with multiple steel pipes or U-shaped steel, among which One is a feed pipe, and a discharge port is set at the tip of the impact hammer. The present invention also includes a construction method using the above-mentioned construction device, the steps of which include: 1) aligning the pile position; 2) hammering and ramming the sleeve to form a pile hole; 3) sinking the casing until the design depth; 4) Lift the casing while conveying concrete into the delivery pipe; 5) until the casing is lifted; 6) carry out subsequent construction.

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, they are both methods of taking out the original soil. Not only does it need to clear the soil and transport it outside, resulting in increased costs and environmental pollutio...

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, they are both methods of taking out the original soil. Not only do they need to clear the soil and transport it outside, resulting in increased costs and environmental pollution, but also because the original soil and soil are not fully utilized. Without the retaining wall, it is very easy to cause the hole wall to collapse and shrink, especially when the groundwater content is high, the pile hole will be flooded with water quickly, and the next step of construction cannot be carried out

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