Study on Key Technology of Using Shell Sand as Backfill for Sea Reclamation  

作　　者：郦能惠 瞿亦容 何文钦 陈晖 

机构地区：[1]Nanjing Hydraulic Research Institute,Nanjing210029,China [2]CTE Guangzhou Design & Consulting Corp.,Guangzhou 510230,China [3]CNOOC Fujian LNG Co. Ltd.,Fuzhou350001,China

出　　处：《China Ocean Engineering》2005年第4期647-658,共12页中国海洋工程（英文版）

基　　金：This work was financially supported by CNOOC(Grant No.Z2004SLFJ-TS26)

摘　　要：The results of a study on the key technology of using shell sand, a kind of sea sand, as backfill for sea reclamation are described briefly. Iaboratory tests show that the physical and mechanical properties of shell sand are as good as normal quartz sand. Based on the chemical test and durability test of shell sand it could be concluded that the influence of corrosion of shell sand by acid rain and sea water might be ignored in the evaluation of the safety and durability of the engineering project. The results of field improvement tests show that the bearing capacity of shell sand backfill foundation is more than 200 kPa after vibmflotation improvement or dynamic compaction improvement. The shell sand is a good backfill material for sea reclamation.The results of a study on the key technology of using shell sand, a kind of sea sand, as backfill for sea reclamation are described briefly. Iaboratory tests show that the physical and mechanical properties of shell sand are as good as normal quartz sand. Based on the chemical test and durability test of shell sand it could be concluded that the influence of corrosion of shell sand by acid rain and sea water might be ignored in the evaluation of the safety and durability of the engineering project. The results of field improvement tests show that the bearing capacity of shell sand backfill foundation is more than 200 kPa after vibmflotation improvement or dynamic compaction improvement. The shell sand is a good backfill material for sea reclamation.

关 键 词：sea reclamation BACKFILL shell sand DURABILITY earthquake response ground improvement 

分 类 号：P741[天文地球—海洋科学]