Materials, Год журнала: 2024, Номер 17(18), С. 4614 - 4614

Опубликована: Сен. 20, 2024

Seasonal frozen soil has significant impacts on changes in mechanical properties, settlement, and damage to foundations. In order study variations the temperature horizontal freezing force of loess during three-dimensional freezing, a model test was carried out. This experiment analyzed studied change distribution characteristics, rules, water migration phenomena caused by temperature. The research results show that samples exhibits “ring-like” decrease from outside inside. When reaches supercooling point, cooling curve jumps rises, this is accompanied stable section with constant late period, rate drops slowly. Under action forces at different positions have similar characteristics can be divided into four stages: stage, rapid “secondary” freezing–shrinkage–rebound stage. At lower moisture contents, undergo freeze–thaw shrinkage process. During stage samples, sample migrates causes secondary freezing. After continues decrease, no longer decreases.

Язык: Английский