摘要
依托上海某工程围护桩项目,提出了一种新型工艺灌注桩,即液压振动沉管原状取土灌注桩,并进行了试桩。通过试桩,比较分析动摩擦和静摩擦的差异、振动拔管时桩径变化情况和单桩的成桩时间,同时列举出施工过程中若干问题并提出了相应的解决方法。
Based on a project of retaining pile in Shanghai,a new technology of cast-in-place pile is put forward,that is,the original soil sampling cast-in-place pile with hydraulic vibration sinking pipe.The difference between static friction and dynamic friction,the change of pile diameter and the time of pile forming are compared and analyzed through pile test.At the same time,this paper lists some problems in the construction process and puts forward corresponding solutions.
作者
许绮炎
XU Qiyan(Shanghai Qiangjin Foundation,Engineering Co.,Ltd.,Shanghai 201806,China)
出处
《施工技术》
CAS
2020年第13期81-83,87,共4页
Construction Technology
基金
上海强劲地基工程股份有限公司技术中心科研项目:液压高频振动沉管原状取土灌注桩试验研究。
关键词
桩
灌注桩
液压振动锤
侧阻力
施工工艺
piles
grouting pile
hydraulic vibratory hammer
side friction
construction
