The invention discloses a large-scale vibration
liquefaction test design method which comprises the following steps: Stp1, a large-
scale test pit is excavated, filled back with sandy soil and then saturated; Stp2, a water-resistant explosive and a
pore water pressure sensor are arranged in the test pit; Stp3, a plurality of groups of
single point explosion
liquefaction tests are performed, and a
single point explosion
liquefaction prediction formula is established; Stp4, multi
cartridge bag trial explosion tests are performed, and a multi
cartridge bag explosion liquefaction prediction formula is established; Stp5, according to the prediction formulas, vibration liquefaction test
system prediction parameters are obtained; and Stp6, multi-point explosion liquefaction
verification tests are performed, and large-area vibration liquefaction test
system design parameters are determined. Large-area vibration liquefaction test environment can be artificially simulated, and multiple purposes of accurately grasp of actual
soil liquefaction response rules and characteristics and expansion of catastrophe tests of a large structure in liquefaction environment and the like can be achieved. The invention also discloses a large-scale vibration liquefaction test
system, which has the advantages of large
test scale, low later test economic cost, wide adaptability and strong expansibility and the like.