Ramming hammer

Abstract

The invention relates to a ramming hammer which comprises a base and a covering plate, wherein a sealed space is formed between the base and the covering plate; the ramming hammer further comprises a steel frame and a crane rib welded on a base plate of the base, and concrete poured into the gap of the sealed space; wherein the crane rib runs through the covering plate and is welded with the covering plate integrally; and the crane rib is provided with a crane piece. The ramming hammer provided by the invention is not only low in cost, but also resistant in throwing, and is applicable for a dynamic compactor with low ramming power.

Description

technical field [0001] The invention relates to a dynamic compactor, in particular to a rammer in the dynamic compactor. Background technique [0002] Such as figure 1 As shown, the dynamic compaction method is also called the dynamic consolidation method, that is, the lifting equipment (such as figure 1 The dynamic tamping machine shown in 1) repeatedly raises the rammer 2 to a certain height, and the rammer 2 falls freely after uncoupling under the action of the uncoupling device, and the potential energy is converted into kinetic energy. When the rammer 2 touches the foundation, its kinetic energy will form a strong shock wave and high stress on the foundation, which can increase the strength of the foundation, reduce the compressibility of the foundation, improve the resistance of the foundation to vibration (seismic) vibration and liquefaction, and eliminate the liquefaction of the foundation. Collapsibility, etc. [0003] At present, the commonly used rammers in Chi...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used rammers in China include: cast steel rammers, cast iron rammers and combined rammers made of plates. However, among them, the combined rammers made of plates have the highest cost, and cast steel rammers use The material is cast carbon steel (cast carbon steel is cast steel with carbon as the main alloying element and contains a small amount of other elements), and the material used for cast iron rammers is cast iron (cast iron is an alloy mainly composed of iron, carbon and silicon), and the cost are high

[0004] In addition, due to the uneven distribution of hard objects such as crushed stones, flakes and slag on the foundation, the impact force on the bottom of the rammer when it touches the foundation is also different, and the rammer is the part with the highest working frequency on the dynamic compaction machine, so In the process of compacting the foundation, it is easy to cause the rammer to break

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