Based on a major construction project in Shanghai of which the ground consists of a silty clay layer in surface and underlying a sandy silt layer

in-situ test study on the fitness of low-energy dynamic consolidation method (LEDCM) is done. By analyzing the variation of excess pore water pressure with depth

distance and the impact number

and considering the increasing and dissipation regularity of excess pore water pressure in different soil layers

a method to choose the construction parameters of LEDCM such as the optimal impact number

the appropriate impact space

the effective strengthened depth and the reasonable interval between two impact passes

by experimental means is proposed. At the same time

the field detective trials including the static cone penetration tests and the standard penetration tests are given to evaluate the effectiveness of improvement

and the results indicate the validity of LEDCM to treat the silty clay ground and also further broaden the application range of LEDCM.