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水下混凝土的灌注,是钻孔桩施工的一个重要阶段,目前一般采用导管法进行。用导管法灌注钻孔桩水下混凝土的理论和方法,通过多年来的实践和研讨,已经有了很大的提高,但在某些方面还存在一些问题,常导致发生灌注事故,造成经济损失或在工程质量上留下不可弥补的缺陷。因此,进一步提高钻孔桩水下混凝土的施工理论和技术,是一个很值得重视的问题。兹参考国内外经验,就其中几个问题做一些分析和研
Underwater concrete perfusion, drilling pile construction is an important stage, the current general use of catheter method. The theory and method of perfusing piles of underwater concrete with conduit method have been greatly improved through years of practice and discussion. However, in some aspects, there are still some problems that often lead to perfusion accidents and economic losses Or the quality of the project left an irreparable defect. Therefore, to further improve the construction of drilling piles of underwater concrete theory and technology, is a very worthy of attention. With reference to the experience both at home and abroad, I have done some analysis and research on several of these issues