Open AccessCONE PENETRATION TESTING AND SAMPLING OF FROZEN SOILS
Author(s) -
Daniil Lagosha,
«Geoingservice» Llp,
N. G. Volkov,
Ivan Sokolov
Publication year - 2021
Publication title -
gruntovedenie
Language(s) - English
Resource type - Journals
eISSN - 2687-0541
pISSN - 2306-9139
DOI - 10.53278/2306-9139-2021-1-16-53-64
Subject(s) - permafrost , geotechnical engineering , penetration test , soil water , cone penetration test , soil test , geology , penetration (warfare) , soil science , statistical analysis , environmental science , engineering , mathematics , statistics , subgrade , oceanography , operations research
The article provides the analysis of the results of the permafrost soils field and laboratory tests. The undisturbed permafrost samples were collected using cone penetration testing (CPT) equipment and MOSTAP sampler. The sampling technology using CPT equipment was applied on permafrost soils for the first time. The full scope of tests for physical properties were carried out on the collected samples. Based on the test results, several engineering-geological elements (EGE) were identified and confirmed, one of which is composed of frozen silty clay. The results of statistical data processing were compared. The data on the coefficient of variation of the values of the ultimate long-term resistivity of soils against cone penetration (characteristic of long-term strength) for the frozen EGE are presented.