Connecting with the railway project under construction, this paper makes analysis on the formation, developmental morphology, destruction mechanism and stability of loess settlement cave, and advances some treating and preventing measures.

Study on regression analysis method and programming of critical stable depth of burial of hidden holes in loess under roadbed;

Dynamic deformation response of pavement structure subjected to hidden holes in loess;

Research of damage and critical thickness on loess hidden cave of the highway roadbed;

According to different spatial strikes of loess hidden cave,the disaster-causing effect of loess hidden cave on highway bridge is divided into two modes: toppling-failure mode and sliding-failure mode.

By taking into account the character of the loess area and the influence of joint on loess hidden cave,and by using structural m.

A study on hazards of loess caves to highways in west Shanxi Province and three-dimensional finite element numerical modeling;

The formation of loess caves is not only relevant to the engineering characteristics of loess itself such as collapsibility,disintegrative etc,but to many other geologic factors such as geological structure,joint fissure,microtopography,hydrographic and climatic condition.

Based on the field survey,this paper summarizes the distribution of loess caves and the characteristic features.

The stability of loess hidden holes not only relates to the engineering geology characteristics, but to all kinds of natural conditions and human factors.