Blocking test device and method for water-permeable concrete pile in piping soil foundation

A technology for plugging test and permeable concrete, which is applied in the fields of measuring device, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problem of lack of permeable concrete pile plugging test simulation device and method, etc.

Inactive Publication Date: 2013-12-11
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently a lack of simulation devices and methods for the plugging test of permeable concrete piles in piping soil

Method used

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  • Blocking test device and method for water-permeable concrete pile in piping soil foundation
  • Blocking test device and method for water-permeable concrete pile in piping soil foundation
  • Blocking test device and method for water-permeable concrete pile in piping soil foundation

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Embodiment Construction

[0080] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0081] like figure 1 As shown, a plugging test device for permeable concrete piles in piping soil foundations includes an outer sleeve 1 and an inner sleeve 2, an inner sleeve 2 is provided on a section of the inner wall of the outer sleeve 1, and the inner sleeve A permeable concrete specimen 3 is arranged inside the cylinder 2, a piping soil specimen 4 is provided above the inner sleeve 2 and the permeable concrete specimen 3, and an overflowing water is provided on the outer sleeve 1 above the piping soil specimen 4. Outlet 5, the outer sleeve 1 below the permeable concrete specimen 3 is provided with a drainpipe 6, and the end of the drainpipe 6 is perpendicular to the horizontal plane; the end of the drainpipe 6 is provided with an electromagnetic flowmeter 7 to measure the flow rate; The upper and lower sides of the permeable concrete test piece ...

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Abstract

The invention discloses a blocking test device for a water-permeable concrete pile in a piping soil foundation. The blocking test device comprises an outer sleeve and an inner sleeve, wherein the inner sleeve is arranged on a section of the inner wall of the outer sleeve; a water-permeable concrete test piece is arranged in the inner sleeve; a piping soil test piece is arranged above the inner sleeve and the water-permeable concrete test piece; an overflow gap is formed in the outer sleeve above the piping soil test piece; a drainage pipe is arranged on the outer sleeve below the water-permeable concrete test piece; the tail end of the drainage pipe is perpendicular to a horizontal panel; an electromagnetic flowmeter is arranged at the tail end of the drainage pipe; pressure gauge preformed holes are formed above and below the water-permeable concrete test piece; iron gauzes are arranged at the upper end and the lower end of the water-permeable concrete test piece. The invention also provides a blocking test method for the water-permeable concrete pile in the piping soil foundation. A full process of blocking the water-permeable concrete pile is simulated by testing a permeation coefficient of the water-permeable concrete test piece and the change of resistivity of a waterlogged test piece, so that the foundation is laid for the research on a blocking mechanism of the water-permeable concrete pile in piping soil.

Description

technical field [0001] The invention relates to a plugging test device and method of a permeable concrete pile in a piping soil foundation, belonging to the field of civil engineering. Background technique [0002] Piping is a geological phenomenon in which fine particles filled in the voids of the soil skeleton are taken away by seepage water to form seepage channels under the action of seepage water, which mainly occurs in cohesionless soil layers. When the permeable concrete pile inserted into the piping occurs, the fine particles in the soil are likely to block the permeable concrete pile, making the permeable concrete pile invalid. Therefore, the research on the blocking mechanism of the permeable concrete pile in the piping soil is very necessary. However, there is currently a lack of simulation devices and methods for the plugging test of permeable concrete piles in piping soil. Contents of the invention [0003] In order to solve the above-mentioned technical pro...

Claims

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Application Information

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IPC IPC(8): G01N15/08G01N27/04
Inventor 崔新壮张炯高智珺杨为民隋伟汤潍泽
Owner SHANDONG UNIV
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