Application of densification by gravel piles in soft foundation ground treatment;

Analysis on the example of the building foundation treatment by using the gravel compaction pile;

The feasibility and effectiveness of gravel compaction pile in treatment of highway liquefaction foundation are discussed from some aspects such as scheme design, construction control, effects measure and analysis, etc.

Based on the practice of proeessing silt ground with gravel compaction pile in recent years the author analyzed the desing method and primoted a practicable design method which can be applied by engineers.

Combined with the engineering practice,the paper discussed the construction technology and quality control measures of macadam compaction pile treating with soft subgrade.

The broken stone compaction pile construction method is a kind of vibrating pile making method, that is, the hole is first made by vibrating the pile pipe, a sufficient amount of broken stones are then filled in the hole, and the pile is finally made by vibration and compaction.

Shaking table test of the liquefiable ground reinforced by tube sinking compacted gravel piles composite foundation;

the tube sinking compacted gravel pile has been widely used in ground treatment.

To treat the deep-thick backfill foundation with ram-compaction gravel piles for a sewage farm,four typical sections within the construction site were selected for the evaluation testing .