Some progresses were presented on the field of rock and soil mechanics for the past few years.

A new and large self-servocontrol test equipment of true triaxial compression used in physical model tests of rock and soil mechanics is introduced in this paper.

Geotechnical engineering and geomechanics in Chinese western zone;

Problems on geomechanics in need of immediate deep research in subway construction;

This paper introduces briefly the development in recent years on the computation techniques of geomechanics and underground structures, and gives a comprehensive survey of the aspects concerned with author s research practice, but not all of the main problems in this field branch are expected to deal with.

The relationship and function in geotechnical mechanics of similar angle θ and lode angle θ_δ;

With the extension of geotechnical engineering domain,numerical analysis methods of geotechnical mechanics are developed rapidly,and many new numerical analysis techniques are advanced.

Through the introduction of the mathematical descriptive methods of the back analysis in geotechnical mechanics, the essence of the back analysis is revealed.

Development and research actuality of soil dynamics;

A modified stabilized fractional-step algorithmfor finite element analysis in saturated soil dynamics;

Summarization of the fourth international conference on recent advances in geotechnical earthquake engineering and soil dynamics;