Based on the submarine soft rock supporting engineering in Beizao Mine of Longkou Mining Corporation,the physical model tests of interaction of U-steel support and roadway were carried out.

Research of support technology on mining softrock roadway;

Support design and construction technology of roadway conjunction with large span in softrock;

Design and implementation of Web GIS for coal mining softrock;

The feasibility analysis of wa-dong coalmine under the conditions of soft rock and villages;

Failure analysis and countermeasure of bolt shotcrete support for soft rock roadway;

Practice of second support theory applied to deep mine soft rock section chamber support;

With the application of numerical simulation software FLAC2D,this paper has simulated the deformation and failure regularity of surrounding rocks with bolt support for soft rocks roadway,and also analyzed the surrounding stress,displacement and plastic zone accordingly.

By studying method of numerical Mechanics,the volumetric dilatation of soft rocks around the tunnels is analyzed.

Based on the research of classification and features of some typical soft rocks in a certain major project in Guangdong province,the authors design a series of tests for the interaction between soft rocks and water.

The confirmation of disposal-parameters of bolting and serosity-parameter of injection-grouting of bolting-grouting reinforcement in soft-rock;

Study on coupling support technique of second bolt-mesh and cable for large section soft-rock chamber in deep mine

Study on support technique of soft-rock chamber under isolated pillar