Probe for detecting concentration of volatile organic matter in polluted soil body and geotechnical engineering characteristics

Abstract

The invention discloses a probe for detecting the concentration of volatile organic matter in a polluted soil body and geotechnical engineering characteristics. The probe comprises a resistivity conepenetration test probe body, the tail of the resistivity cone penetration test probe body is connected with a rotating membrane interface probe through the transfer position, the rotating membrane interface probe comprises a shell connected with the transfer position, a piezocone penetration test (CPTU) cable reserved channel used for allowing a CPTU composite cable to penetrate is formed in the middle of the shell, a U-shaped gas channel is formed in the two sides of the CPTU cable reserved channel, a gas inlet pipe used for inputting circulating carrier gas is arranged at one end of the U-shaped gas channel, a gas outlet pipe is arranged at the other end of the U-shaped gas channel, a gas inlet communicating with the gas outlet pipe is formed in one side of the shell, a gas permeable membrane is arranged at the gas inlet, and a heating module is arranged at the bottom of the gas inlet. According to the probe, the defect that a traditional membrane interface probe neglects the geotechnical engineering characteristics is overcome, testing precision is improved, and concentration distribution of site pollutants can be effectively reflected.

Description

technical field [0001] The invention relates to a combination of a static penetrating probe and an air-permeable probe, which belongs to the field of environmental geotechnical engineering, and in particular to a probe for detecting the concentration of volatile organic compounds in polluted soil and the characteristics of geotechnical engineering. Background technique [0002] Land is a non-renewable resource and the foundation of social and economic development. Since the 21st century, with the rapid development of my country's economy, the land is under increasing environmental pressure, and polluted sites left over from industrial relocation are emerging. The prevention and control of soil and groundwater pollution has become one of the important tasks of environmental protection in my country. Among them, pollution Site investigation and evaluation is the premise and basis of prevention and control work, which is particularly important. Understand the types, concentrati...

AI Technical Summary

Problems solved by technology

However, the traditional in-situ testing technology for polluted sites—membrane interface detectors—ignores the impact of differences in site geotechnical engineering characteristics on the test results while detecting pollutants, thus making the analysis results less accurate and difficult to meet the relevant Research and subsequent design needs

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