Taking some test engineering of soft ground for example, this paper introduces the design thinking of cement powder-spray pile treating weak subgrade and the observation way of settlement in layers, analyses the experimental results, and thinks that there are good results.

Through comparison and selection test of tamping energy and cushion thickness,research on correlations and their optimizations of parameters and the relation between tamping energy,cushion thickness and cumulative settlement of dynamic compaction,it was practicable to treat weak subgrade with column-hammer thrusted-expanged piles.

Study on technique of low-energy dynamic consolidation method combined with dewatering used to treat soft roadbed;

Connecting with the construction practice of the treatment of the soft roadbed in reconstruction project of Yunfeng Superhighway, this paper sums up several measures for the treatment of the soft collapsible loess roadbed.

Experimental study on open room soil and impaction compaction method for poor weak subgrade treatment

Reinforcement treatment methods of the building soft ground;

Ways selected and perspectives of soft ground treatment;

Application of blasting lime pile method in treatment of soft ground;