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An explosive hollow picket

A hollow pile technology, applied in sheet pile walls, buildings, foundation structure engineering, etc., can solve the problems of unstable pile foundation, low bearing capacity, difficult pile drilling, etc., and achieve reasonable structure, simple structure, simple and feasible process Effect

Inactive Publication Date: 2016-04-27
GUIZHOU CONSTR SCI RES & DESIGN INST OF CSCEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide an explosive hollow picket pile to solve the problem of difficult pile drilling, unstable pile foundation and low bearing capacity under complex geological conditions. The problem

Method used

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  • An explosive hollow picket
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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but not as any limitation to the present invention.

[0021] An explosive hollow picket such as figure 1 and figure 2 shown. Including the pile barrel 4; the bottom of the pile barrel 4 is hinged with a group of drill point valves through the hinge rod 2; each drill point valve 1 is evenly distributed along the bottom circumference of the pile barrel; each drill point valve 1 is provided with a hinge ball at the inner lower part 13; the hinge ball 13 is connected with the explosive propelling device arranged at the bottom of the stake barrel 4 . The pile barrel 4 is cylindrical, the inner diameter of the cylinder is 5-10 centimeters, and the thickness of the cylinder is 3-5 millimeters. The explosive propulsion device such as image 3 and Figure 4 shown. It includes a fixed plate 7 fixedly connected to the inner wall of the pile ...

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Abstract

The invention discloses an explosive hollow picket. Including the pile barrel 4; the bottom of the pile barrel 4 is hinged with a group of drill point valves through the hinge rod 2; each drill point valve 1 is evenly distributed along the bottom circumference of the pile barrel; each drill point valve 1 is provided with a hinge ball at the inner lower part 13; the hinge ball 13 is connected with the explosive propelling device arranged at the bottom of the stake barrel 4 . The invention has a simple structure and a reasonable structure; it can solve the problems of difficult pile drilling, unstable pile foundation and low bearing capacity under complex geological conditions; the pile forming effect is ideal, safe and reliable; the explosive hollow picket pile of the invention can be used The hard soil layer or stones under the pile barrel are first blown loose by the explosive bag, and then the top of the pile barrel is driven until the pile is formed, and finally the concrete is poured. The process of the invention is simple and feasible.

Description

technical field [0001] The invention relates to an explosive hollow picket pile, which belongs to the technical field of pile foundation in the construction field. Background technique [0002] In recent years, some technical measures such as the pile-forming process of pile foundations have become more and more demanding for high-rise buildings, and the construction quality and bearing capacity of pile foundations have also increased accordingly. Generally, there are pressure grouting grout expansion piles, pressure grouting rotary spray expansion piles, pressure grouting expansion bottom mixing piles, etc., but the construction technology of these pile foundations is generally more complicated, and there are many procedures. The effect is not obvious. The construction industry is still constantly exploring the simple and effective pile forming method and its construction technology. In order to effectively solve the problems of difficult pile drilling, unstable pile foun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/72
Inventor 李新刚孙晓羽肖立福
Owner GUIZHOU CONSTR SCI RES & DESIGN INST OF CSCEC
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