Author(s): FENG Xue-hui, Haiyuan County Water Bureau
Pages: 116-119+91
Year: 2015 Issue:  10
Journal: Water Resources and Power
Keyword:  soft clay foundation; geotextile; biaxial tension; sample optimization;
Abstract: Geotextile is under the mechanical status of biaxial tension in the construction of foundation pit engineering reinforced by geotextile.So,it is necessary to explore the biaxial tensile properties of the geotextile.Nine different types of geotechnical fabric biaxial tensile specimen were put forward according to the existing test equipment.The mechanical properties of nine different specimens were analyzed by using finite element software.Combined with the characteristics of the material itself,the evaluation principle and index were obtained.Through the comparative analysis of each specimen,the sample 4was selected as the alternative specimen.The control variable method was used to determine the functional relationship between the key size and evaluation index.Finally,an optimal sample size was obtained by using the goal function.