Cloth bag wall protection micro pile and construction method thereof

A construction method and technology of micro piles, applied in sheet pile wall, foundation structure engineering, construction and other directions, can solve problems such as time-consuming and pile quality problems, and achieve the effect of convenient operation, on-site construction, and easy shaping.

Active Publication Date: 2012-04-11
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the small diameter of the drill hole of the micro-pile, and the process of putting the steel cage and pouring the concrete takes a long tim

Method used

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  • Cloth bag wall protection micro pile and construction method thereof
  • Cloth bag wall protection micro pile and construction method thereof
  • Cloth bag wall protection micro pile and construction method thereof

Examples

Experimental program
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Embodiment Construction

[0035] Below in conjunction with accompanying drawing, the cloth bag retaining wall miniature pile of the present invention and its construction method are described in further detail.

[0036] Such as figure 2 As shown, the cloth bag retaining wall mini-pile of the present invention comprises a cloth bag with an open upper end and a closed lower end. The micro-pile main body 23 is equipped with a plurality of gaps 25 on the bottom periphery of the upper pocket. During construction, the mud in the micro-pile boreholes flows into the upper pocket through the gaps, which can facilitate the cleaning of the micro-pile boreholes. holes, so that the specific gravity of the mud in the bag meets the construction requirements of the present invention. The inside or the outside of the upper pocket 21 of the cloth bag is bound with a cloth bag support 26 for supporting the cloth bag, and the cloth bag support can adopt a circular steel bar. When the bag support is tied on the inner si...

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PUM

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Abstract

The invention belongs to the field of foundation engineering of power transmission lines, and particularly discloses a cloth bag wall protection micro pile and a construction method thereof. The cloth bag wall protection micro pile comprises a cloth bag of which the upper end is opened and the lower end is closed; the cloth bag comprises an upper bag and a lower bag which are communicated with each other and integrated; a counterweight block is filled in the lower bag; a micro pile main body is filled in the upper bag; the peripheral edge of the bottom of the upper bag is provided with a breach; and a cloth bag support for supporting the cloth bag is arranged on the inner side or the outer side of the upper bag. The construction method for the micro pile comprises the following steps of: forming a hole, cleaning the hole, hoisting a reinforcement cage, preparing the micro pile main body, and finally finishing forming the pile. According to the cloth bag wall protection micro pile and the construction method thereof, the quality of the micro pile is not affected by drilled hole collapse or hole shrinkage and the like; and the micro pile has the advantages of safety, stability, high firmness and the like.

Description

technical field [0001] The invention belongs to the field of foundation engineering of power transmission lines, and in particular relates to a cloth bag wall protection miniature pile and a construction method thereof. Background technique [0002] Micro-pile refers to small-diameter bored piles with a diameter between 0.10m and 0.40m, such as figure 1 As shown, the traditional micro-pile is generally formed by putting steel cage skeleton 12 into borehole 11, and then pouring concrete 13 into the borehole; Aggregate, and finally inject cement slurry into the borehole under high pressure to form. [0003] Due to the small diameter of the drill hole of the micro-pile, and the process of putting the steel cage and pouring the concrete takes a long time, it is easy to appear figure 1 The phenomenon of hole collapse 14 or diameter reduction 15 of medium and micro-sized piles causes quality problems of the pile body. Therefore, there is an urgent need for those skilled in the ...

Claims

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Application Information

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IPC IPC(8): E02D5/60E02D15/04
Inventor 苏荣臻程永锋鲁先龙刘华清
Owner CHINA ELECTRIC POWER RES INST
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