拔桩施工工艺及方法
浅谈拔桩施工工艺及方法
摘要：在目前大规模城市改造中，有时往往需要对原有桥梁、市政设施、建（构）筑物进行拆除，包括原有桥梁、市政设施、建（构）筑物的桩基，如何拔除深埋于地下的桩基（包括预制方桩、预制phc管桩、钻孔灌注桩等）呢？本文结合杭州地铁2号线6标施工中丰北桥旧桩基（钻孔灌注桩）的拔除进行探讨，供同行参考。 关键词：拔桩施工；工艺流程；效果分析
discussion on pile construction technology and methods ge jiajia
abstract: in the current large-scale city transformation, sometimes the need for the original bridge, municipal facilities, built (structure ) building materials for demolition, including the original bridge, municipal
facilities, built (structure ) to build the foundation, how to remove deep buried foundation ( including precast square piles, precast phc piles, bored pile )? in this paper,
combined with hangzhou subway line 2 6 standard construction in beiqiao fung ( old pile foundation bored pile ) extraction are discussed, for reference.
key words: pile construction; technological process; effect analysis
一、拔桩原理分析