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Piezoelectric solidified soil for in-situ detection of silt solidification and preparation method thereof

A technology for in-situ detection and solidification of soil, which is applied in the preparation of test samples, the use of stable tension/pressure to test the strength of materials, and measurement devices, etc., which can solve the problem of high sampling and testing costs, and inability to perceive and evaluate the treatment of solidified soil. Effectiveness, poor timeliness and other problems, to achieve the effect of guaranteed strength, small site damage, flexible layout of measuring points

Active Publication Date: 2022-07-08
THE THIRD CONSTR & ENG OF CCFED +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage is that the sludge solidification effect can be quantitatively tested, but the disadvantage is that it is impossible to perceive and evaluate the treatment effect of the solidified soil in situ in real time, and the timeliness is poor, and the cost of sampling and testing is high

Method used

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  • Piezoelectric solidified soil for in-situ detection of silt solidification and preparation method thereof
  • Piezoelectric solidified soil for in-situ detection of silt solidification and preparation method thereof
  • Piezoelectric solidified soil for in-situ detection of silt solidification and preparation method thereof

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Experimental program
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Effect test

Embodiment

[0036] The preparation steps of the piezoelectric piezoelectric solidified soil are as follows:

[0037] Step 1, configure a self-sensing sludge curing agent, the ratio can be the recommended value, and can be adjusted according to the composition of the in-situ soil; the self-sensing sludge curing agent is made of cement: fly ash: piezoelectric ceramic particles: conductive medium particles , in which the volume ratio of cement: fly ash: piezoelectric ceramic particles: conductive medium is 32:18:40:10; the piezoelectric ceramic particles are lead zirconate titanate particles with a particle size of 5mm-10mm, and the conductive medium particles are Acetylene carbon black particles with a diameter of 1mm-5mm.

[0038] Step 2, carry out an indoor test to determine the proportion of self-perceived sludge curing agent; as long as it is ensured that the difference in unconfined compressive strength between the sludge with self-perceived sludge curing agent and the sludge with ordi...

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Abstract

The invention relates to the technical field of in-situ detection of silt solidification, in particular to a piezoelectric solidified soil for in-situ detection of silt solidification and a preparation method thereof; the piezoelectric solidified soil for in-situ detection of silt solidification is composed of The sensory sludge solidifying agent is fully mixed, and the raw materials of the self-sensing mud solidifying agent include cement, fly ash, piezoelectric ceramic particles and conductive medium; a preparation method of piezoelectric solidified soil for in-situ detection of mud solidification , including the following steps: (1) coordination; (2) injection; (3) polarization. The present invention can detect the solidified state of silt at any position and depth. Compared with the traditional method, the arrangement of measuring points is more flexible; Electric ceramics can be used not only as an aggregate to increase strength, but also as a medium for detecting real-time status, which can ensure the strength of self-sensing silt-solidified soil.

Description

technical field [0001] The invention relates to the technical field of in-situ detection of sludge solidification, in particular to a piezoelectric solidified soil used for in-situ detection of sludge solidification and a preparation method thereof. Background technique [0002] At present, many cities in China are carrying out dredging treatment around rivers or lakes to improve the water environment. However, due to the limitation of the urban environment, most of these dredging projects are dredging by dredging ships, and pipelines are transported for a long distance to a certain area before stacking, and natural sedimentation and drying. It not only occupies a large area, but also has a long processing cycle, and also brings risks such as pollution transfer. As a result, the technology of dredging polluted sludge in rivers and lakes and the deep dehydration and solidification treatment technology of sludge will have good application prospects in the later water environm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08G01N1/36
CPCG01N3/08G01N1/36G01N2203/0676G01N2203/0051G01N2203/0252G01N2001/366Y02W30/91
Inventor 高鸿李丰江向舟海戴明昊蒙国鑫郑峰卓叶骏张国柱王伟
Owner THE THIRD CONSTR & ENG OF CCFED
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