锚杆静压桩在加固加层危房地基中的应用研究

Application of Static Pressure Pile to the building with Additional Storey

武汉市某船厂一层框架结构的生产车间 ,在加层过程中出现沉降量过大且不均匀 ,墙体开裂等现象而成为危房。经过重新勘察设计 ,决定采用锚杆静压桩加固此危房。通过该工程实例 ,介绍了锚杆静压桩的工作机理、应用范围和设计方法 ,以及锚杆静压桩的施工工艺和施工中应注意的问题。

Owing to the construction for increasing storey on the one storey framework workshop of a dockyard in Wuhan city, the excessive and uneven settlement and the structure crack have been found. Through the new investigation and design the static bolt pile reinforcement is adopted. The working mechanism, design and application scope of static pressure pile are introduced. The construction technique and problems are aosl discussed.