摘要
中国及海上丝路国家围海吹填造陆以及疏浚过程中船舶泥沙舱的吹填土,在土质为细颗粒组分时,均存在压密固结时间较长问题,需要采取新的有效处理技术加以解决。本文提出针对吹填粉质土的即时扰动促沉技术,达到吹填土快速排水固结的目标。采用即时扰动促沉技术,开展了分层吹填即时扰动和一次吹填分层扰动两种模式的室内模拟试验。通过与静置固结模式的比较,结果表明:即时扰动促沉技术对吹填粉质土场地有明显的加速固结效果,而采用分层吹填即时扰动和一次吹填分层扰动两种模式的加固效果相当,前者综合效益更好。该试验结果为细颗粒吹填土的快速固结提供了新的处理方法。
During the land reclamation and dredge in China and other countries along the Maritime Silk Road, the compaction and consolidation of reclaimed soil in the hopper lasts for a long time when the sediment mainly consists of fine particles. It is necessary to adopt a new effective processing technology to solve this problem. This paper proposes an immediate disturbance and settlement promotion technology for the silty soil to achieve the goal of rapid drainage consolidation of dredger fill. Two modes, "layered reclamation and disturbance" and "one-time reclamation and disturbance", are set in this paper by means of immediate disturbance and settlement promotion technology. The result compared with static consolidation shows that: immediate disturbance and settlement promotion technology has significant effects on silt hydraulic filling reinforcement. The two modes are of the same effect in terms of settlement displacement, and the former one has better economic benefits. The test results provide a new treatment method for the quick consolidation of fine-particle hydraulic fill.
作者
贾婧雯
许国辉
曾俞
许兴北
任宇鹏
JIA Jing-Wen;XU Guo-Hui;ZENG Yu;XU Xing-Bei;REN Yu-Peng(Ocean University of China,Key Laboratory of Marine Environment and Ecology,Ministry of Education,Qingdao 266100,China;Ocean University of China,Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering,Qingdao 266100,China;Ocean University of China,College of Environmental Science and Engineering,Qingdao 266100,China)
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第S01期145-152,共8页
Periodical of Ocean University of China
基金
国家自然科学基金项目(41576039)资助。
关键词
吹填土
沉积
快速加固
模拟试验
hydraulic fill
deposition
quick consolidation
simulation test
