|
位置：首页 >> 期刊文章
|
|
摘要：
|
|
在 2 0 0 2年 12月初的寒潮大浪作用下 ,长江口二期工程北导堤已安装的 16个半圆型沉箱发生了严重的滑移和沉陷破坏。经现场调查、室内试验 ,明确了箱内填砂不足及流失是沉箱滑移的主要原因 ;地基土在波浪动荷载作用下的软化则是导致沉陷破坏的主要原因。经室内试验和现场试验、观测 ,证明了修改设计采用以对软粘土进行有限加固为主的对策措施是成功的。
|
|
Attacked by the cold waves in the early part of December 2002,sixteen semi-circular caissons, which had been installed for the northern breakwater in Phase II of the Yangtze Estuary regulation project, developed serious sliding and subsidence. Both the field investigation and laboratory tests showed clearly that shortage of sand fill inside the caissons and loss of sand from the caissons were the main causes for the sliding of the caisson while softening of foundation soil resulted from the action of the dynamic wave loads was the main cause for the subsidence of the caissons. Results of the laboratory tests and field investigations and observations demonstrated that the countermeasures adopted in the modified designs to improve the soft clay to a limit extent proved successful.
|
|
基金项目：
|
|
|
|
作者简介：
|
|
|
|
参考文献：
|
|
|
|
服务与反馈：
|
|
【文章下载】【加入收藏】
|
|
|
|
|