Experimental Study on Liquefaction Mitigation with Geosynthetics and Shredded Plastic

The shake table is an experimental setup used to generate earthquake motions and evaluate the seismic load effect on soil or materials. During an earthquake, a shaking table’s flat surface vibrates horizontally which simulates ground motions occurring during an earthquake. Saturated soil loses its strength and stiffness because of pore water pressure caused during earthquake by seismic waves, i.e. cyclic loading. This occurrence is called liquefaction in soil mechanics. This experimental investigation and study are performed to check how liquefaction mitigation can be achieved by using a shake table with the use of geosynthetics and shredded plastic as an inclusion material in soil. This study shows that field boundary conditions can be more accurately replicated by using a laminar shear box during shaking. Soil acceleration and pore pressure could be utilized to get the outcomes by supervising the settlement of soil in a laminar shear box. On the basis of various studies, shake table tests are performed with 30% relative density which shows effectiveness of liquefaction against settlement problems. Results showed that adding geotextile and shredded plastic together increases liquefaction resistance by reducing settlement, Cyclic Stress Ratio (CSR), and pore pressure by nearly 61%, 40%, and 67% respectively.