Environment pore pressure static sounding probe for in-situ detection of heavy metal polluting components and concentration

Abstract

The invention provides an environment pore pressure static sounding probe for in-situ detection of heavy metal polluting components and concentration. Measurement of the heavy metal polluting components and the concentration is finished by an X-ray energy spectrum analysis device and a resistivity testing device. The X-ray energy spectrum analysis device comprises an X-ray emitter, an X-ray detector and a high-performance filter. The heavy metal polluting components in soil are detected through X-ray detection and analysis. The resistivity testing device consists of four annular electrodes at the periphery, wherein the annular electrodes are isolated by an insulating layer; the two middle annular electrodes are testing electrodes; the upper and lower annular electrodes are emitting electrodes; the emitting electrodes are used for emitting current to the soil body; the testing electrodes are used for measuring potential difference; the resistivity of the soil body surrounding the electrodes can be calculated by combining an Ohm's law and the pollution concentration is calculated through a specific heavy metal element concentration and resistivity conversion formula. The environment pore pressure static sounding probe provides a powerful identification tool for heavy metal polluted foundation soil in-situ evaluation in environmental geotechnical engineering.

Description

technical field [0001] The invention relates to the field of geotechnical engineering, in particular to an environmental pore pressure static penetrating probe for in-situ detection of soil heavy metal pollution components and concentrations. Background technique [0002] With the rapid development of the economy, the acceleration of urbanization and industrialization, the soil pollution of the site is becoming more and more serious, and the geotechnical environment on which we live is deteriorating day by day. important research topic. Sediments or wastes containing heavy metal elements will pollute underground soil and groundwater, directly or indirectly posing serious threats to human health and the environment. When heavy metal pollutants exist, the type and concentration assessment of heavy metal pollutants is one of the essential contents of geotechnical engineering and environmental engineering site investigation. Existing heavy metal pollution assessment methods us...

AI Technical Summary

Problems solved by technology

At the same time, the detection test of the concentration of heavy metal elements in soil is usually cumbersome, and the corresponding concentration of heavy metal elements cannot be quickly obtained, and the variability is large. Different researchers of the same soil sample often come to different conclusions.

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