ENGINEERING EXAMPLE OF DYNAMIC COMPACTION REPLACEMENT FOR MISCELLANEOUS FILL FOUNDATION AND ANALYSIS OF TREATMENT EFFECT
There is a layer of miscellaneous fill on the surface at a certain site in Huangshan City which has low strength,high compressibility and poor engineering properties.The dynamic replacement was used to increase its strength,reduce its compressibility,reduce the settlement and uneven settlement and meet the design requirements.In order to more greatly improve the bearing capacity of composite foundation and reduce the settlement of foundation,the dry hard concrete with low strength was used as replacement materials what was different from other dynamic replacement treatment projects where granular materials were used as replacement materials.The detailed treatment plan was made after trial ramming,and the dynamic replacement piers were tested through load tests and other tests after treatment.The test results showed that the dynamic replacement piers using dry hard concrete as replacement materials had high strength and low deformation which could improve the bearing capacity of composite foundation and reduce foundation settlement and uneven settlement greatly.
dynamic replacement replacement pier load test bearing capacity
WU Daoxiang HU Xueting SHEN Qipeng ZHANG Huijie
School of resources and environment engineering,HeFei University of Technology,Hefei,China,230009
国际会议
2016 International Symposium on Civil and Environmental Engineering(2016年土木与环境工程国际研讨会)
武汉
英文
201-204
2016-12-20（万方平台首次上网日期，不代表论文的发表时间）