摘要
某工程由3座塔楼及裙房组成,基坑面积约21 000 m^2,基坑距钱塘江约1.5km。由于杭州钱塘江两侧地质条件较复杂,承压水位高,基坑围护采用直径850 mm的止水帷幕结构和1 m厚地下连续墙,并对基坑开挖采取了一些预防控制措施,以确保基坑安全。
This project is consisted of three tower buildings and podium building. The foundation pit is about 21000m^2 and is 1.5km far from the Qiantang River. After analysis on geohydrologic conditions, waterproof curtain structure with a diameter of 850mm and lm thick underground diaphragm wall were used for foundation pit enclosure. Considering complex engineering characteristics and difficulties, foundation pit dewatering was analyzed and water pumping and dewatering tests were carried out and some prevention and control measures for foundation pit excavation were adopted, to guarantee foundation pit safety and to provide reliable reference for construction design.
出处
《建筑技术》
北大核心
2016年第9期791-794,共4页
Architecture Technology
关键词
深基坑
承压水
降水
封底
deep foundation pit
pressure water
dewatering
bottom sealing
