Description

Wrap Faced embankment is basically a sand embankment wrapped around by geotextile layers as a steep embankment. This wrap-faced embankment is filled with different characteristics of sand (example: sylhet and local sand which are available in Bangladesh). In this research, the wrap faced embankment is model by reduce scale in BUET Geotechnical Lab. The shaking table test machine was used to induce earthquake and wave action. The artificial recorded kobe 1995 and loma prieta 1989 earthquakes were used to conduct this research. The fifteen sensors have been placed in the wrap faced embankment and clay soil layer. The different soil characteristics like accelerations, displacement, pore water pressure and strain has been analyzed in this research. This embankment showed better response to the earthquakes and wave action means stable to seismic and wave action. The results of the research have also been verified by numerical analysis by PLAXIS 3D software. The variation of results is less than 15%. It was very challenging to find out the characteristics of such type of embankment on soft clay soil in Bangladesh during the earthquake and wave action. Without knowing the characteristics of the wrap faced embankment during the earthquake, it is impossible to build this type earthquake/ wave resisting embankment. The dynamic behavior of wrap faced embankment on soft soil in Bangladesh has been invented by the Hore's research. Now, it is possible to design and construction of earthquake/ wave resistance wrap faced embankment on soft Bangladeshi soil.

Contributors

Ripon Hore