Application of Micro-steel Pipe Pile in Deep Foundation Excavation Retaining and Protection

Abstract:

According to the successful field case of the foundation pit engineering of Zhengdong new district, the paper introduced the mechanism of micro-steel pipe pile in composite soil nailing support with combination of soil nailing and micro-steel pipe pile, which promoted wide application of this technology in deep excavation engineering.

Key words:composite soil nailing wall; micro-steel pipe pile; retaining and protecting for foundation excavation