Abstract: The present invention provides a method for tackling the repelling of hammering during pipe pile driving. The technical scheme of the present invention includes: when repelling of hammering occurs in the process of piling through a sand layer, drill holes downwardly around and/or inside the pipe pile, and jet high-pressure water to the sand layer below to cut and disturb the sand layer.

Abstract: The present invention provides a method for tackling the repelling of hammering during pipe pile driving, which is of simply structure and can be carried out easily. The technical scheme of the present invention comprises: When repelling of hammering occurs in the process of piling through a sand layer, drill holes downwardly around and/or inside the pipe pile, and jet high-pressure water to the sand layer below to cut and disturb the sand layer, which consequently decreases the soil resistance to the pipe pile and increases the driveability. The present invention is applied to geotechnical engineering.

Abstract: A grouting cabin structure of a grouted connection for use in a foundation of an offshore wind turbine generator is described. The structure includes a pile, a sleeve which is coaxial with said pile and installed outside said pile, and a first grouting exhaust port and a first connection port for a grouting pipe provided at an upper part and a lower part of said sleeve. An enclosed cabin of a barrel form is arranged in a gap between said pile and said sleeve, said enclosed cabin is formed by an internal wall of said cabin and said sleeve, a second connection port for the grouting pipe and a second grouting exhaust port are provided at a lower and an upper part of said enclosed cabin, respectively; the cabin and pile form a first grouting space and said cabin and said sleeve forms a second grouting space.

Abstract: A grouting cabin structure of a grouted connection for use in a foundation of an offshore wind turbine generator is described. The structure includes a pile, a sleeve which is coaxial with said pile and installed outside said pile, and a first grouting exhaust port and a first connection port for a grouting pipe provided at an upper part and a lower part of said sleeve. An enclosed cabin of a barrel form is arranged in a gap between said pile and said sleeve, said enclosed cabin is formed by an internal wall of said cabin and said sleeve, a second connection port for the grouting pipe and a second grouting exhaust port are provided at a lower and an upper pat of said enclosed cabin, respectively; the cabin and pile form a first grouting space and said cabin and said sleeve forms a second grouting space.