摘要
以工程实例为依托,分析了暴雨天气下超大深基坑出现的围护结构变形过大、渗水及桩间土流失等险情。结合工程特点,采取控制基坑水位、加快基坑底板浇筑和坑内外土体加固等措施后,基坑水平位移稳定,位移速率显著减小,结构渗漏明显好转,为超大深基坑在台风暴雨等异常天气下,多点险情同时爆发的处置提供了经验。
Based on the engineering examples,the danger of excessive deformation of the enclosure structure,water seepage and soil loss between piles in oversized deep foundation pits under heavy rainfall was analyzed.Combined with the characteristics of the project,after taking measures such as controlling the water level of the pit,accelerating the concrete pouring of the pit floor and reinforcing the soil inside and outside the pit,the horizontal displacement of the pit was stabilized,the displacement rate was significantly reduced,and the leakage of the structure was significantly improved,which provided experience for the disposal of dangerous situations in typhoons and heavy rainfall and other weather for the oversized deep pit.
作者
李向阳
傅林峰
姚鑫林
应胜一
LI Xiangyang;FU Linfeng;YAO Xinlin;YING Shengyi(Hangzhou Shangcheng District Construction Project Quality and Safety Supervision Station,Hangzhou 310020,China;Testing Technology Co.,Ltd.of Zhejiang University of Technology,Hangzhou 310014,China;Zhejiang Geology and Mineral Construction Co.,Ltd.,Hangzhou 310051,China;College of Civil Engineering,Zhejiang University of Technology,Hangzhou 310012,China)
出处
《建筑结构》
CSCD
北大核心
2022年第S01期3087-3090,共4页
Building Structure
关键词
暴雨天气
超大深基坑
围护结构位移
渗漏
抢险
rainstorm weather
super deep foundation pit
enclosure displacement
seepage
rescue
