首页 | 本学科首页   官方微博 | 高级检索  
     

海洋疏浚泥固化处理土基本力学性质研究
引用本文:朱伟,张春雷,高玉峰,范昭平.海洋疏浚泥固化处理土基本力学性质研究[J].浙江大学学报(自然科学版 ),2005,39(10):1561-1565.
作者姓名:朱伟  张春雷  高玉峰  范昭平
作者单位:朱伟1,2,张春雷1,2,高玉峰2,范昭平2 (1. 河海大学 环境科学与工程学院,江苏 南京 210098; 2. 河海大学 岩土工程研究所,江苏 南京 210098 )
基金项目:国家自然科学基金,国家高技术研究发展计划(863计划)
摘    要:针对海洋疏浚泥传统抛填中产生的环境污染问题,提出将疏浚泥进行固化处理后转化为土材料进行使用的方法 ,并对疏浚泥固化后作为土材料的基本力学性质进行了试验.通过对大亚湾海洋疏浚泥不同水泥掺加量和龄期的各种试验 ,得到了固化土的无侧限抗压强度与水泥掺加量之间的线性关系,明确了固化土破坏应变随水泥掺加量呈乘幂减小的规 律,并对固化系数和最小水泥掺加量等参数的物理意义进行了分析,给出了简单的推求公式.结果表明,淤泥经固化处理 后能够满足作为普通填方土材料的需要,而且可以根据工程的需要设计出经济合理的固化方法,为实际工程的应用奠定 了基础.

关 键 词:疏浚泥  固化土  力学性质  固化系数  最低添加量
文章编号:1008-973X(2005)10-1560-05
收稿时间:2004-08-20
修稿时间:2004年8月20日

Fundamental mechanical properties of solidified dredged marine sediment
ZHU Wei,ZHANG Chun-lei,GAO Yu-feng,FAN Zhao-ping.Fundamental mechanical properties of solidified dredged marine sediment[J].Journal of Zhejiang University(Engineering Science),2005,39(10):1561-1565.
Authors:ZHU Wei  ZHANG Chun-lei  GAO Yu-feng  FAN Zhao-ping
Affiliation:1. College of Environmental Science and Technology, Hehai University, Nanjing 210098, China ; 2. Institute of Geotechnical Engineering, Hehai University, Nanjing 210098,China
Abstract:In order to minimize the environmental pollution created by the traditional disposal methods of dredged marine sediments, a method was proposed to solidify the dredged sediments for beneficial use. The basic mechanical behavior of the solidified dredged sediments was studied. A testing program was conducted on a dredged marine sediment taken from Dayawan, which consisted of tests on specimens prepared at different cement contents and curing times. The test results show that the unconfined compressive strength increases linearly with the cement content and the failure strain reduces with the cement content by following a power function. The physical meanings of parameters, such as solidification coefficient and minimum cement content were also discussed. The results showed that the solidified dredged sediment can be used as a fill material. An economized solidification method developed from this theory can provide basis for future engineering application.
Keywords:dredged sediment    solidified dredged sediment    mechanical property    solidification coefficient    minimum cement content
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《浙江大学学报(自然科学版 )》浏览原始摘要信息
点击此处可从《浙江大学学报(自然科学版 )》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号