%0 Journal Article
%T VIBROFLOTATION COMPACTION OF SILTY FINE SANDS WITHOUT ADDITIONAL BACKFILL MATERIALS<br>无填料振冲法加固粉细砂地基试验研究及应用
%A Zhou Jian
%A Jia Mincai
%A Chi Yong
%A <br>周健
%A 贾敏才
%A 池永
%J 岩石力学与工程学报
%D 2003
%I 
%X Vibroflotation compaction is a comparably mature method for the improvement of cohesiveless soils,but it is seldom used to strengthen silty fine sands without additional stone aggregates because of some failure case histories. By means of innovative and modified construction techniques and parameters,the effectiveness of vibroflotation of saturated silty fine sands without additional backfill materials as well as related technical parameters are investigated. The aging effects of strength of sands after vibroflotation are also discussed. The in-situ test results indicate that the densification of silty fine sands have progressed to the state of medium compaction,and even to condense compaction state in some depths. Based on the successful in-situ experiment and large-scale practice of a container terminal in Shanghai,it is verified that vibroflotation compaction without the addition of stones is significantly efficient in strengthening silty fine sands with the new techniques and special construction process.
%K soil mechanics
%K silty fine sands
%K saturation
%K vibroflotation without additional backfill materials
%K test
%K technique<br>土力学
%K 饱和
%K 无填抖振冲
%K 试验
%K 振冲加固
%K 粉细砂地基
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=E7884547C395933A&yid=D43C4A19B2EE3C0A&vid=BC12EA701C895178&iid=5D311CA918CA9A03&sid=0B75D2720F0065BE&eid=B7AB8E33F0FC19ED&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=19&reference_num=16