复杂地层环境下的全套管钻孔桩成套技术

UNITIZED TECHNIQUE FOR COMPLETE DIVING CASING CAST-IN-PLACE PILE IN COMPLEX STRATIGRAPHIC CONDITIONS

钻孔灌注桩是桩基工程中的一个重要的桩型,在土木工程行业中使用非常广泛。在复杂地层和环境条件下进行钻孔灌注桩的施工,桩基质量往往不能得到有效保证。通过在钻成孔过程中全程采用钢套管护壁,为在复杂地层环境中进行灌注桩施工提供了一个高效、节能、绿色的施工技术。在介绍全套管钻孔桩成套技术构成及设备的基础上,详细介绍了应对各种复杂地层环境的施工措施和应对策略。

Cast-in-place pile is an important technique in pile foundation engineering, it is widely used in foundation engineering. The quality of traditional cast-in-place pile is often unreliable in stratigraphic conditions. By using steel casing throughout the drilling process, a high efficient and energy saving construction technique was provided to the construction of cast-in-place pile in complex stratigraphic conditions. On the basis of introducing the unitized technique and equipments of the complete diving casing cast-in-place pile, the construction measures and solutions in various complex stratigraphic conditions were introduced in detail.