This paper introduces the characteristics of Computed Tomography （CT） technology and reviews its history, current situation, representative achievements, and use of using CT technology on frozen soil study, includin...This paper introduces the characteristics of Computed Tomography （CT） technology and reviews its history, current situation, representative achievements, and use of using CT technology on frozen soil study, including auxiliary equipment specially de- signed for frozen soil studies. CT numbers are used to analyze frozen soil internal structure change, defining and exploring dam- age evolution, and use of CT images on observing soil mesostructure. Finally, this paper presents existing problems confronted by using CT in frozen soil studies, possible solutions and challenges, among which, we introduce high quality CT image processing for frozen soils, and relations between CT number change and each component change on frozen soil samples within the region of interest. It is shown that present CT technology is one of the most ideal and effective technology to study frozen soil mesostructure using non-desmactive testing. CT technology will play a key role in the study and development in the field of frozen soil by means of auxiliary equipment and the digital imaging processing.展开更多
基金financially supported by the National Natural Science Foundation of China(Nos.4102300340971046+3 种基金41201181)the Foundation of State Key Laboratory of Frozen Soil Engineering(No.Y252J81001)the Youth Foundation of Cold and Arid Regions Environmental Engineering Research InstituteChinese Academy of Sciences(No.51Y251B91)
文摘This paper introduces the characteristics of Computed Tomography （CT） technology and reviews its history, current situation, representative achievements, and use of using CT technology on frozen soil study, including auxiliary equipment specially de- signed for frozen soil studies. CT numbers are used to analyze frozen soil internal structure change, defining and exploring dam- age evolution, and use of CT images on observing soil mesostructure. Finally, this paper presents existing problems confronted by using CT in frozen soil studies, possible solutions and challenges, among which, we introduce high quality CT image processing for frozen soils, and relations between CT number change and each component change on frozen soil samples within the region of interest. It is shown that present CT technology is one of the most ideal and effective technology to study frozen soil mesostructure using non-desmactive testing. CT technology will play a key role in the study and development in the field of frozen soil by means of auxiliary equipment and the digital imaging processing.
基金国家自然科学基金重点项目(No.41630636)甘肃省科技重大专项计划项目(No.143GKDA007)+5 种基金中国科学院率先行动"百人计划"资助项目(刘恩龙)冻土工程国家重点实验室课题(No.Y252J81001)supported by the National Natural Science Foundation of China(41630636)the Science and Technology Major Project of Gansu Province(143GKDA007)the Pioneer&Hundred Talents Program of CAS(Dr Liu Enlong)Project of the State Key Laboratory of Frozen Soils Engineering of CAS(Y252J81001)
