Experimental Research on Dynamic Consolidation by Blasting Ramming in Soft Clay Foundation
The purposes were to use new method experimentally for reinforcing subgrade in soft soil zone, by which the dynamic load caused by strong compacting could be eliminated in course of reinforcement. The comparison and analysis were made for consolidation results if reinforcing subgrade in saturate soft soil zone by adopting blasting method and heaped per-bading method through making site experiment on reinforcing subgrade in soft soil zone in section if DK 172 + 000～DK 172 + 200 on Nanjing-Hauling Railway Line. The pos-blasting settlement law of subgrade was obtained by analyzing site observation results of surface settlement, full section settlement and lateral displacement. Research results was shown the good result of reinforcing subgrade in soft soil zone could be obtained by adoping blasting method, with speeding up surface settlement which was helpful for shortening the time of consolidating and reinforcing subgrade in sofe soil zone. The process of reinforcing subgrade in soft soil zone by dynamic blasting method was presented and the comparison and analysis of effective mechanics for reinforcing subgrade in soft soil zone by blasting ramming dynamic method and strong compacting method were made. It was deduced theoretically blasting ramming dynamic consolidation method was suitable for reinforcing subgrade in deep soft soil zone.
soft ground foundation dynamic consolidation by blasting ramming strong compacting method
DENG Zhiyong ZHANG Zhiyi WANG Xuguang
China Academy of Railway Sciences, beijing, China Beijing General Research Institute of Mining and Metallurgy, beijing, China
国际会议
The Asian-Pacific Symposium on Blasting Techniques(亚洲太平洋地区爆破技术研讨会)
昆明
英文
543-549
2007-05-08（万方平台首次上网日期，不代表论文的发表时间）