Abstract：A new similar material(PSTO) for solid-fluid coupling has been developed through hundreds of compounding tests based on the theory of solid-fluid coupling and the experimental study of solid model material. It is mixed with sand，talc powder，paraffin and hydraulic oil. Sand and talc powder are used as aggregated；paraffin is used as a cementing agent；hydraulic oil is used as a regulator. The effect of different mixing ratios and loading temperatures on the properties of the samples has also been studied through large numbers of laboratory tests. The new material is completely non-hydrophilic，thus there is non-occurrence of softening under the action of water. It belongs to brittle materials with a similar nature of rock mass，which can be used to simulate low-strength and medium-strength rock materials with different permeabilities. So it is an ideal similar material for solid-fluid coupling. This material has been used in a tunnel water-inflow model test；and the variation of the multi-field information such as displacement，stress and seepage pressure has been effectively revealed.
李树忱，冯现大，李术才，李利平，李国莹. 新型固流耦合相似材料的研制及其应用[J]. 岩石力学与工程学报, 2010, 29(02): 281-288.
LI Shuchen，FENG Xianda，LI Shucai，LI Liping，LI Guoying. RESEARCH AND DEVELOPMENT OF A NEW SIMILAR MATERIAL FOR SOLID-FLUID COUPLING AND ITS APPLICATION. , 2010, 29(02): 281-288.
