广州地铁海珠广场车场深基坑支护设计

介绍了地铁海珠广场车站深基坑支护的选择原则以及地下连续墙和钢管支撑设计要点，对半土半岩地层地下连续墙插入深度进行了探讨。提出了钢管支撑杆件标准化和制作、安装、维修一体化的构想。

Design of Deep Foundation Pit Support of Haizhu Square Station of Guangzhou Metro

The foundation pit of Haizhu square station is 24.5mdeep, which is the deepest on in Guangzhou at the present. The stratum of the pit is quite complex, with silt layer and fine sand layer mixed, so the construction is difficult to carry out and the requirement of pit support is strict. In this paper, the selection principle of the pit wupport of the metro station are introduced, as well as the key points of the design of underground continuous wall and steel pipe support. A discussion of the inserted depth of underground continuous wall in half-soil and half-rock stratum is presented. Also a conception of standardization of steel pipe components and a connected sequence of manufacturing, installing and maintenance is put forward by the author.