Laboratory investigations of the thermal strain of frozen soils,using fiber-optic strain gauges base

• 作 者: Aleksey Marchenko Nicolai Vasi
• 机 构: DepartmentofArcticTechnology,TheLaboratoryofStaticResearchofSoils,PetertheGreatSt.PetersburgPolytech
• 出 处: 寒旱区科学：英文版
• 发表日期: 2017年3期
• 关键词: thermal EXPANSION FROZEN soil SAND CLAY fiber-optic SENSORS HYSTERESIS thermal e
• 基金项目: The investigations were performed with the support of the Innovation Centre SAMCoT (Sustainable Arctic Marine and Coastal Technology), a project of the Norwegian scientific fund.

Measurements of the thermal deformations of frozen soil samples were performed in the cold laboratory in temperature range from 0 °C to ?12 °C. Fiber Bragg Gratings strain and temperature sensors were used to measure the deformation and temperat