Open AccessShear strength behaviour of liquefiable sand of petobo on treated by agarose under direct shear test
Author(s) -
Arifin Beddu,
Hendra Setiawan,
Nuraida,
M R Anugrah
Publication year - 2022
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1212/1/012035
Subject(s) - liquefaction , geotechnical engineering , triaxial shear test , direct shear test , shear (geology) , shear stress , overburden pressure , agarose , stress (linguistics) , shear strength (soil) , materials science , geology , composite material , chemistry , soil water , soil science , chromatography , linguistics , philosophy
Liquefaction process is associated with the loss of the shear strength of the saturated loose sands caused by strong earthquakes. Due to mitigitation of liquefaction hazard, an appropriate mitigation of liquefaction using environmentally friendly methods is critical and becoming increasingly important and unavoidable. The laboratory investigation was carried out to study the shear strength behaviour of liquefiable sand of Petobo treated by agarose on different concentration 1%,3% 5%. A series of direct shear test were conducted under three level of vertical stress 10 kPa, 20 kPa, and 30 kPa on the specimen. It was found that the optimum content of agarose which can be considered is at 1%-3%, using stress ratio (τ/σv) analysis shows that stress ratio decreases with increasing the vertical stress on the same agar content. The implication this result that the application of this method must consider variation of material source and characteristic, and the suitable level of vertical stresses.