Construction Technology of Retaining System for Ultra-deep Circular Air Shaft Foundation Pit in Sensitive Environment Adjacent to River

Foundation pit engineering is one of the most complex and frequently encountered technical fields in civil engineering. Foundation pit engineering has due to the characteristics of “regionalism,” it is necessary to fully consider the combination of local engineering experience and geological conditions during the construction process of foundation pit engineering, in order to adapt to local conditions. With the continuous development of soil mechanics theory, calculation software, testing instruments, construction equipment, and construction technology, foundation pit engineering technology is constantly developing and improving. Currently, various practical and safe foundation pit support methods that are in line with China’s national conditions have been developed in China, and the construction technology has not been improved Broken and perfect.