Non-circular impact-reaming device for bored pile and reaming method of non-circular impact-reaming device

A technology for non-circular, bored piles, used in drilling equipment and methods, drives for drilling in wellbore, drill bits, etc.

Active Publication Date: 2016-10-12
叶晓明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a non-circular impact reaming device for mechanical bored piles

Method used

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  • Non-circular impact-reaming device for bored pile and reaming method of non-circular impact-reaming device
  • Non-circular impact-reaming device for bored pile and reaming method of non-circular impact-reaming device

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Embodiment Construction

[0018] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0019] Such as figure 1 The shown non-circular impact reaming device for bored piles includes a control spindle 1, which is a tubular structure, and the control spindle 1 is sequentially provided with a driving device and an impact energy transmission device from top to bottom. , a reamer 6 and a slag hopper 8, the driving device is fixedly connected to the control spindle 1, the impact energy transmission device is fixedly connected to the driving device, and a limiter...

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Abstract

The invention discloses a non-circular impact-reaming device for a bored pile. The non-circular impact-reaming device for the bored pile comprises a control spindle. The control spindle is sequentially sleeved with a driving device, an impact energy transmitting device, a reamer and a slag discharging hopper from top to bottom. A limiting device used for fixing the reamer is further arranged below the transmitting device. A round hole is formed in the middle of the reamer. A rock / soil cutter is arranged at the bottom of the reamer. A liquid pressure inlet / outlet pipe is arranged in the control spindle, and the liquid pressure inlet / outlet pipe is connected with the driving device. According to the non-circular impact-reaming device, since the driving device is arranged, rock / soil breaking impact force can be provided for the reamer through the impact energy transmitting device, and the reaming purpose is achieved; since the round slag discharging hopper is arranged, guiding for reaming can be achieved, and reaming soil and rocks can be collected; since the slag discharging hopper is detachable, slag discharging hoppers of different types can be replaced at any time, and the reaming efficiency is improved; and since the rock / soil cutter is provided with a cutter bit which can retract inwards, a space for storing a wall protection cylinder is provided, and the rock / soil cutter can be taken out of the reaming device more conveniently.

Description

technical field [0001] The invention relates to the technical field of non-circular pile hole forming in civil engineering, in particular to a non-circular impact hole reaming device for bored piles and a hole reaming method thereof. Background technique [0002] Holes are formed in rock and soil layers, and reinforced concrete is poured into the holes to form a force-bearing structure. As an important part of the structural system, this method has a long history. For example, anti-slide piles in slope engineering, pile foundations in buildings, piers in bridge engineering, foundations of large equipment, etc., all adopt this structural form. As far as the hole forming method is concerned, there are two main categories: mechanical hole forming and manual excavation hole forming. Wherein, the mechanical hole forming mainly provides rock-breaking (soil) power or changes the rock-drilling point position by rotation, therefore, only circular holes can be formed and circular pil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/28E21B4/14E21B27/00E21B10/32
CPCE21B4/14E21B7/001E21B7/28E21B10/322E21B27/00
Inventor 叶晓明
Owner 叶晓明
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