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Numerical analysis of soil settlement prediction and its application in large-scale marine reclamation artificial island project

Zhao J., Bao L., Wang G.

Polish Maritime Research

2017

S 3

4--11

In an artificial island construction project based on the large-scale marine reclamation land, the soil settlement is a key to affect the late safe operation of the whole field. To analyze the factors of the soil settlement in a marine reclamation project, the SEM method in the soil micro-structural analysis method is used to test and study six soil samples such as the representative silt, mucky silty clay, silty clay and clay in the area. The structural characteristics that affect the soil settlement are obtained by observing the SEM charts at different depths. By combining numerical calculation method of Terzaghi’s one-dimensional and Biot’s two-dimensional consolidation theory, the one-dimensional and two-dimensional creep models are established and the numerical calculation results of two consolidation theories are compared in order to predict the maximum settlement of the soils 100 years after completion. The analysis results indicate that the micro-structural characteristics are the essential factor to affect the settlement in this area. Based on numerical analysis of one-dimensional and two-dimensional settlement, the settlement law and trend obtained by two numerical analysis method is similar. The analysis of this paper can provide reference and guidance to the project related to the marine reclamation land.

Capillary Limit of Micro Heat Pipe with Compound Structure of a Sintered Wick on Trapezium-grooved Substrate

Li X., Wang J., Hu Q., Bao L., Zhang H., Wang C.

Przegląd Elektrotechniczny

2012

R. 88, nr 9b

141-144

A micro heat pipe’s (MHP) performance is largely determined by its capillary limit. Based on comprehensive analyses of lower backflow resistance of working fluid in trapezium-grooved-wick MHP and greater capillary suction in a sintered-wick MHP, this paper established the mathematical model of capillary limit for a MHP with the compound structure of a sintered wick on trapezium-grooved substrate. The analyses show that a MHP with such compound structure has a higher capillary limit than that a MHP with a simplex sintered- or trapezium-grooved wick structure.

Właściwości podgrzewanej mikrorurki zależą od parametrów kapilary. W artykule zaprezentowano model matematyczny mikrorurki z kapilarą uwzględniający skład. Zaproponowano optymalizacje konstrukcji.