A method of measuring high water content for marine clay with high salinity by TDR

作者：Cao Yu Peng^*; Deng Yong Feng; Hong Zhen Shun

来源：Chinese Journal of Geotechnical Engineering, 2010, 32(12): 1916-1921.

• Dielectric constants
• Dredged clays
• Engineering practices
• High salinity
• High water content
• Marine clays
• TDR
• Test data

The effectiveness of applying TDR technique to measure water content depends on the relationship between the dielectric constant and the water content. The empirical relationship proposed by Topp has been often used in engineering practice. However, the Topp empirical relationship is derived from the test data under the conditions of high salinity and high water content. In this study, a series of tests are performed to investigate the relationship between the dielectric constant and the water content for marine dredged clay with salinity of 1.5%~4.5% and water content of 120%~320%. A new relationship between w/θ and w/k is proposed for the clay with high salinity and high water content. The available data compiled from references are also used to verify the validity of the proposed relationship.

• 出版日期2010
• 单位东南大学