关键词: 预应力混凝土管桩, 承载性状, 工程应用

Abstract: The engineering application of prestressed concrete pipe piles has developed rapidly in China at present, and the products have enormous quantity and wide applications. Their bearing properties, design, construction and testing should be taken attention seriously. This paper summarizes and analyzes the developmental history of prestressed concrete pipe piles, the current situation of pipe pile application and some problems which we often encounters in engineering application of prestressed concrete pipe pile. Combined with national codes, industrial standards, and the measured data in engineering test of prestressed concrete pipe pile, this paper comparatively analyzes the conditions for the application of prestressed concrete pipe pile, the bearing properties on pipe piles shaft, and the construction quality management of prestressed concrete pipe pile in depth. Through the analysis of several engineering example, this paper summarizes some implementation notes. in the engineering application of prestressed concrete pipe pile. This paper gives some prevention measures of reducing the quality accidence in the prestressed concrete pipe pile engineering, and makes some recommendations on the application of security, economy and rationality in prestressed concrete pipe pile.

Key words: prestressed concrete pipe pile, bearing properties, engineering application