汛期江上工程钻探施工实践

Construction Practice of River Drilling in Flood Season

摘要:

通过工程实例，着重介绍了汛期在江上进行桥基勘察施工时，钻船及设备的选择，钻船拼装和抛锚定位方法，钻进工艺以及机上余尺、回次进尺的计算方法等，重点强调了江上钻探施工的相关注意事项。

Abstract:

By the engineering case, the paper introduced the selection of drill ship & equipment, drill ship assembling & anchoring positioning, drilling technology & calculation method of kelly overstand and footage per run for river drilling of bridge foundation investigation in flood season. The attentions on river drilling construction were emphasized.