冲孔灌注桩中常见质量问题及防治措施

由于冲孔灌注桩对各种地质条件的适应性强,施工简单易操作,并且设备投入小,因此在各类房屋建筑中都得到广泛应用。冲孔灌注桩的施工大部分在水下进行,对其施工过程无法直观观察,成桩后也不能进行开挖验收。施工中的任何一个环节出现问题,都将直接影响整个工程的质量和进度,甚至给投资者造成巨大经济损失和不良社会影响。因此,必须在桩基成孔过程及水下混凝土灌注过程中防治处理可能出现或已经出现的问题,以保质、保量地完成桩基施工任务。

Common Quality Problems and Prevention Measures of Boring Cast-in-situ Piles

Boring cast-in-situ piles are widely used in various kinds of buildings as they are highly adaptive to every kind of geographic condition,easy to handle and low in cost of their devices.The construction of boring cast-in-situ piles is most done underwater,so there is no way to observe directly the process of construction or dig them out for inspection after they are done.Anything wrong with any links during construction will directly affect the quality and process of the entire project, or even bring about a huge financial loss and have a negative social impact to the investor.Thus it is necessary to prevent and deal with problems that may appear or have already appeared during the pile-into-the-hole process and underwater concrete pouring process,so that the pile foundation project is done with good quality and quantity.