Reciprocating type vibratory forced ramming hammer

Abstract

The invention provides a reciprocating type vibratory forced ramming hammer. After the hammer drops once, multi-time vibratory ramming on a pretreatment foundation can be realized, and damages of thefoundation structure are effectively prevented. The reciprocating type vibratory forced ramming hammer provided by the invention comprises a shell, a center vibrator, guide rods, exhaust cylinders andsprings; the inside of the shell is a cylindrical cavity; the center vibrator is arranged inside the shell and is provided with a plurality of first through holes; a plurality of guide rods penetratethrough the first through holes correspondingly; the upper and lower ends of the guide rods are connected with the top and the bottom of the shell correspondingly; guide rod sections below the centervibrator are correspondingly provided with the springs in a sleeving manner; the enter vibrator is also provided with a plurality of second through holes; the bottom of the shell is provided with third through holes corresponding to the second through holes; the top of the shell is provided with fourth through holes corresponding to the second through holes; each exhaust cylinder is of a hollow cylindrical structure of which the two ends are opened; the exhaust cylinders penetrates through the second through holes correspondingly; the two ends of the exhaust cylinders are connected with the third through holes and the fourth through holes correspondingly; and a hoisting hanger is arranged at the center of the outer side surface of the top of the shell.

Description

technical field [0001] The invention relates to the technical field of soft foundation treatment in the civil engineering industry, in particular to a reciprocating vibrating strong tamper. Background technique [0002] The dynamic compaction method is to use a large crawler-type dynamic compaction machine to freely drop an 8-30-ton heavy hammer from a height of 6-30 meters to compact the soil strongly, rapidly increase the bearing capacity and compression modulus of the foundation, and form a relatively uniform, The dense foundation changes the pore distribution of the foundation soil within a certain depth of the foundation. Dynamic compaction construction has been widely used in foundation reinforcement projects such as highways, railways, airports, nuclear power plants, large industrial areas, and port reclamation. [0003] Traditional dynamic ramming hammers are divided into filling hammers, combined hammers, and cast iron hammers. One lift can only achieve one tamping...

AI Technical Summary

Problems solved by technology

[0003] Traditional dynamic ramming hammers are divided into filling hammers, combined hammers, and cast iron hammers. One lift can only achieve one tamping impact. There is no multi-level vibration effect, which is not conducive to the removal of pore water. Although the tamping energy is relatively large, it is easy to cause foundation soil structure. destroy

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