The ground material occupying area is thin and not so large compared to areas such as atmosphere, ocean, or crust. However, the ground is located in the boundary position among the large areas. So, various amounts of biological activities or special chemical and physical phenomena are observed in geophese. In research process, method for describing the dynamic mechanisms of the ground material from the experimental results or various conservation laws are developed. Additionally, I’d like to develop the soil solidification technology using the bio-chemical-thermal reactions and consider the process of forming the soft ground in the seabed.

Employment

Education

Development of soil-solution-air-solute coupling model

Dynamics of ground state is variously changed by industrial activities or natural environment. To consider the ‘Stability of the ground’, ‘Infiltration properties of pore water/ air’, ‘Solute transportation characteristic’, which changed complexly and simultaneously, integrated model is developed using the mixture theory and continuous dynamics. In addition, to figure out the bio-chemical-thermal effect to the ground material, coupling model for these phenomena is also researched recently.

　Image of some industrial and environmental effects to the ground

Development of ground environmental evaluation technique in deep seabed area

Deep seabed area is expected to figure out earth dynamics elucidation and develop for industrial use due to its specific environmental conditions (ex. pressure and temperature condition, organic-inorganic element content). Organizing the mechanical characteristic of deep sea from the developing observations, clarifying the chemical-physical phenomena occurring in ultra-extreme conditions of deep sea, I’d like to consider the way to connect sustainable industrial use.

　　　　　　　Environmental image in deep seabed area

Original Publications (Peer-Reviewed)

• S. Nomura, Y. Maeno: Expression model for density flow in the ground and study on the applicability of it，Journal of Applied Mechanics, JSCE，Vol.70, No.2, pp735-742, 2015.
• Y. Sugiyama, S. Nomura, A. Iizuka, K. Kawai, S. Tachibana, S. Kanazawa, and T. Takeyama: Salt damage and soil contamination caused by the East Japan Earthquake and Tsumani, Theoretical and applied mechanics Japan, Volume 62, pp.141-147, 2013
• K. Kawai, Y. Sugiyama, S. Nomura, A. Iizuka: Growth environment estimation of the monumental pine in Rikuzen Takata with mass transfer simulation, Journal of Applied Mechanics, JSCE，Vol.68，No.2，I_345-I_352,2012.
• S. Nomura, K. Kawai, S. Kakui, S. Tachibana, S. Kanazawa, A Iizuka: Transfer model of water-solublematerial in saturated-unsaturated ground，Journal of Applied Mechanics, JSCE, Vol.67, No.2, I_231-I_240, 2011.
• K.Kawai, S.Nomura, A.Iizuka, S.Ohno, P.Thirapong, S.Tachibana, S.Kanazawa：Study of the stratigraphic architecture resistant for salt damage and the method to purify salty ground, Journal of Applied Mechanics, JSCE, Vol.12, pp.421-428, 2009.

Other Publications (Peer-Reviewed)

• S. Nomura, Y. Maeno: Development and applicability of density flow model in 1-D & 2-D space, 12th international conference on Geo-disaster reduction, California , 2014.
• K. Kawai, S. Saeki, S. Nomura, Y. Sugiyama: Reduction of evaporation from the ground with mulching, 12th international conference on Geo-disaster reduction, California , 2014.
• S. Nomura, Y. Sugiyama, K. Kawai, A. Iizuka: Derivation of mass transfer model for the unsaturated soil and its applications, 6th international conference unsaturated soils, Sydney , 2014.
• Y. Sugiyama, S. Nomura, K. Kawai, M. Mimura: Factors influencing on the performance of the capillary barrier system, 6th international conference unsaturated soils, Sydney , 2014.
• Y. Sugiyama, S. Nomura, K. Kawai, A. Iizuka: Protective measures of the monumental pine in Rikuzen-Takada with soil-water-air-solved material coupled model, 2nd International Conference on Geotechnique, Materials and Environment, Kuala Lumpur, Malaysia, pp.828-833,2012.
• A.Iizuka, K.Kawai, S.Nomura: Salt damage mechanism in northeastern Thailand and repair methods, The 4th Central Asian Geotechnical Symposium: Geo-Engineering for Construction and Conservation of Cultural Heritage and Historical Sites - Challenges and Solutions - , Samarkand, Uzbekistan, pp.103-110,2012.
• S.Nomura: Expression model for soil/water/air/dissolved material coupled problem in the ground, 6th international workshop on new frontiers in coupled computational geomechanics, Takayama, pp.77-80，2012.
• S.Nomura, K.Kawai, A.Iizuka, S.Tachibana, S.Kanazawa：Mathematical model of soil/water/air coupled problem for unsaturated soils considering mass transfer within pore-water, 5th Asia-Pacific Conference on unsaturated soils, Pattaya Thailand, pp.287-292, 2011.
• A.Iizuka, K.Kawai, S.Nomura, S.Ohno, S.Tachibana：The Role of Unsaturated Geomechanics in Desertification due to Salt Damage, 5th Asia-Pacific Conference on unsaturated soils, Pattaya Thailand, pp.31-44，2011.
• S.Nomura, K.Kawai, A.Iizuka, S.Ohno, P.Thirapong, S.Tachibana, S.Kanazawa：Study of stratification resistant to salt damage, 5th international conference unsaturated soils,Barcelona,pp1133-1139．2010.