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随着施工机械的不断改进和施工工艺的不断进步,使桩基础在桥梁建设中的运用越来越普及。钻孔灌注桩基础由于其施工设备简单、易于操作而被广泛应用于桥梁建设中,目前已形成了一套比较成熟的施工技术。但是由于钻孔灌注桩的施工受多种因素影响,处理不好容易引起断桩,因此对断桩的预防是钻孔灌注桩施工中的一个重要问题。
With the continuous improvement of construction machinery and continuous improvement of construction technology, the application of pile foundation in bridge construction is more and more popular. Due to its simple construction equipment and easy operation, the bored pile foundation is widely used in the construction of bridges. At present, a relatively mature construction technology has been formed. However, due to many factors affecting the construction of cast-in-situ bored piles, poor handling can easily lead to broken piles. Therefore, the prevention of broken piles is an important issue in the construction of bored piles.