摘要

At present, the conventional method of detecting soluble salt ion content in soil takes approximately two days in China. Moreover, the method has complicated steps and can only be carried out indoors. The above drawbacks will lag behind the on-site construction management and affect the construction progress in severe cases. In this study, portable equipment is proposed to detect the content of soluble salt ions in the soil. The proposed method is compared and analysed with conventional methods to develop a construction method for rapid on-site detection of soluble salts. The subgrade soil of Beijing Xinjiang Expressway from Balikun to Mulei section is tested and studied. Following the electrical conductivity principle of salt solution, the salt content of the soil is measured using a conductivity meter. On the basis of spectrophotometry, the Cl/SO4 2 value of the soil is determined using a portable water quality analyser. The experimental results show that electrical conductivity can characterise the degree of soil salinisation, and a water quality analyser can determine the type of saline soil. Their measurement methods are simple and easy to master, and the detection accuracy is high. The equipment is light and portable, can be used outdoors and has the advantages of low price.

授权许可

ICE Publishing: All rights reserved

推荐引用方式

Liqun Feng,Wenjing Liu. Rapid Determination of Saline Soil in the Xinjiang Region in China. Geotechnical Research ,(2020)

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