Classical geotechnical engineering limit element analysis method is widely used, but it is not suitable for heterogeneous materials. In particular, the finite element method should be used to analyze the strength of the loess slope. With the development of computer technology, it is possible to utilize...

The formation of a certain mine is the overturned stratum. The roof of coal seam is the limestone aquifer, which is cut by the normal fault. The deep mining of steep inclined coal seam is easy to cause the activation of fault and conduct limestone aquifer, resulting in water inrush accident. Facing the...

As urbanization continues to accelerate the development, construction projects are gradually increasing, and geotechnical engineering technology is constantly attention. Because the technology is directly related to geotechnical engineering building high-speed rail, bridges, tunnels and other projects,...

From the modeling operator, we derive its adjoint operator which is used to migrate 3-D poststack data. It forms a theoretical foundation for the reverse-time migration. The method would be helpful to get a new way to improve the result of conventional reverse-time migration. The inference of the adjoint...