Analysis and Evaluation of Collapse Mechanism of Loess

Wenjing Tian

Chongqing Jiaotong Universicy, Chongqing, 400074, China,

Abstract: Loess is widely distributed and continuous in China, and loess is distributed in a zonal pattern. It is well known for its well- development and thickness. Loess in China is distributed in Kunlun Mountains, Qinling Mountains, Taishan and so on, covering 630000 km2. Because of the large area of loess landforms, from the early days of the founding of the people's Republic of China, Chinese scholars have done a lot of experiments and studies on the engineering properties and mechanism of collapsible loess, and with the development of science and technology, the study of collapsibility of loess is becoming more and more thorough and comprehensive. The study of the loess microstructure theory is the background of the study. The collapsibility of loess is analyzed from the angle of unsaturated soil mechanics, in order to provide real, powerful basis and guidance for the treatment of collapsible loess foundation in China, and put forward some suggestions and prospects for the accurate evaluation of collapsible loess in China.

Keywords: Collapsible loess; The properties of loess’s structure; Collapsibility mechanism; Collapsibility evaluation