Analytical Investigations on One-Dimensional Thermal Consolidation of Saturated Soil under Complicated Work Conditions

 

Ruiqian Wu

School of Civil Engineering, Shaoxing University, Shaoxing, China

Wei Wang

School of Civil Engineering, Shaoxing University, Shaoxing, China
*corresponding author, email: wellsking.wang@gmail.com

Qiuping Wang

Department of Civil Engineering, Shaoxing Secondary Technical School, Shaoxing, China

Caixia Guo

School of Civil Engineering, Shaoxing University, Shaoxing, China

 

 ABSTRACT

Thermal effect plays an important role in consolidation of saturated medium and it, especially in geotechnical engineering, has not properly understood nowadays. Problems of one-dimensional thermal consolidation of saturated soil under five complicated work conditions were investigated, where external time-dependent loading, cyclic changing surface temperature, as well as initial excess pore-water pressure were taken into account. Compared with the consolidation theory of Terzaghi, aiming at each work condition, the one-dimensional thermal consolidation behaviour of saturated soil was analyzed in terms of excess pore-water pressure, the settlement and the average consolidation degree. The results show that the behaviour of excess pore-water pressure and the settlement of ground are affected differently under different work condition in the process of thermal consolidation. The settlement and average consolidation degree of ground are more sensitive to temperature condition than the excess pore-water pressure.

Keywords: saturated soil, thermal consolidation, excess pore-water pressure, settlement.

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