预应力混凝土管桩锤击施工技术的运用摘要：预应力混凝土管桩(phc桩)，打桩前需做好桩锤、桩架选择，确定管桩龄期，打桩过程中插桩、锤打、接桩、送桩均采取了相应的技术措施。该工程中phc桩所具有的单桩承载力高、桩身耐锤击性好、穿透力强、造价便宜等特点关键词：预应力混凝土管桩， 单桩承载力， 锤击应力abstract: the prestressed concrete pipe pile (phc), before piling need to be done to hammer, pile frames of choice, sure pipe), but the piling into piles, in the process of hammer, answer the pile, send pile are adopted corresponding technical measures. in this project is phc pile of single pile bearing capacity of pile shaft and high resistanc
