High power hydraulic pipe ramming hammer, hydraulic power station, joint disk, guide device, and patulous mechanism were developed to ram steel pipes or casings vertically into ground.

• 采用大功率油压夯管锤,研制相匹配的油压动力站、联接盘、导正装置及张紧机构,用于钢管基础(或护筒)的垂直夯入,摸索该施工技术的工艺方法及管靴结构。