Forming method for square pile hole

A square pile and hole forming technology, applied in drilling equipment and methods, sheet pile walls, earthwork drilling, etc., can solve the problem of difficulty in forming square pile holes, etc. cleaning effect

Inactive Publication Date: 2016-06-08
SHENZHEN GONGKAN GEOTECHN GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a square pile forming method, aiming to solve the problem in the prior art that it is difficult to form a square pile hole

Method used

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  • Forming method for square pile hole
  • Forming method for square pile hole
  • Forming method for square pile hole

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0022] refer to Figure 1~6 Shown is the preferred embodiment provided by the present invention.

[0023] The method for forming a square pile hole provided in this embodiment is mainly used for forming a square pile hole 10 whose length and width are both less than 2 m. Of course, it can also be used for forming square pile holes 10 of various sizes.

[0024] refer to Figure 1 to Figure 5 As shown, the square pile hole forming method provided in this embodiment inclu...

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Abstract

The invention relates to the technical field of square pile holes, and discloses a forming method for a square pile hole. The forming method comprises the following construction methods that 1, trepanning is carried out, a square pile casing is put downwards, the lower end of the square pile casing penetrates a fill stratum and extends into a residual soil layer, and the upper end of the square pile casing extends out of the ground; 2, a round drill bit is utilized for carrying out hole guiding many times, a plurality of round holes are formed, the diameter of the round drill bit is consistent with the width of the square pile hole, the multiple round holes are sequentially connected in rows in the length direction of the square pile hole, and the extending length is consistent with the length of the square pile hole; and 3, a square drill bit is utilized for carrying out drilling from top to bottom, and the square pile hole is formed. The forming method for the square pile hole has the following beneficial effects that the forming speed of the square pile hole is high; the quality of the square pile hole is guaranteed; the construction cost is low, the construction speed is high, the single-machine comprehensive efficiency is high, and the mechanical construction cost is relatively low; and the construction site is clean, and field management is simplified.

Description

technical field [0001] The invention relates to the technical field of square pile holes, in particular to a square pile hole forming method. Background technique [0002] Rotary drilling rig is a kind of pile foundation construction equipment used for hole-forming operations. With the vigorous development of domestic foundation engineering in recent years, rotary drilling rigs have been widely used due to their advantages of high efficiency, speed, environmental protection, and high hole-forming quality. . The rotary drilling rig mainly uses the power head to drive the drill pipe, and transmits the driving force and pressure of the power head to the drill bit through the drill pipe to realize cutting and drilling of the formation. [0003] At present, the drill bits of rotary drilling rigs on the market are all round, and are mainly used for the construction of cylindrical pile holes. Like this, when the rotary drilling rig encounters the need to construct square pile hole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/34E21B7/00E21B10/43
CPCE02D5/34E21B7/001E21B10/43
Inventor 叶坤雷斌赵建国李森郑磊杨静洪明坚
Owner SHENZHEN GONGKAN GEOTECHN GRP
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