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Numerical Analysis on Slag Removal of Diaphragm Wall Groove Bottom by Air-lift Reverse Circulation
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Wuhan Geological Prospecting & Foundation Engineering Co., Ltd.,Wuhan Geological Prospecting & Foundation Engineering Co., Ltd.,Wuhan Geological Prospecting & Foundation Engineering Co., Ltd.,Wuhan Geological Prospecting & Foundation Engineering Co., Ltd.,Wuhan Geological Prospecting & Foundation Engineering Co., Ltd.

Clc Number:

TU476 .3;P634.6 3

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    Abstract:

    In order to study the application effect of air-lift reverse circulation in slag removal of diaphragm wall groove bottom, Fluent software was used to establish a two-dimensional model by means of simulated numerical analysis method. The placement depth of air-lift mixer, slag cleaning pressure of air compressor and slag diameter are taken as the research objects. It is concluded that the air-lift reverse circulation technology can effectively remove slag from the foundation pit bottom of diaphragm wall. The velocity of slag flowing out is 0.014~1.098m/s, the escape velocity of clay particles is faster than that of slag with other sizes; and the thicker the slag is, the more difficult the slag removal is.

    Reference
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History
  • Received:June 02,2017
  • Revised:October 30,2017
  • Adopted:October 30,2017
  • Online: January 24,2018
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