How much do you know about hydraulic vibratory hammers?
On the basis of electric vibrating hammer, hydraulic vibrating hammer has all the advantages of electric vibrating hammer and is even better. Different types of vibratory hammers are suitable for different geological environments, mainly including conventional type, high frequency type and non-resonant type (usually non-resonant type and high frequency type).
Hydraulic hammer is an impact pile hammer, which can be divided into single-acting and double-acting according to its structure and working principle. The so-called single-acting type means that the impact hammer core is quickly released after being lifted to a predetermined height by a hydraulic device, and the impact hammer core hits the pile in free fall; the double-acting type means that the impact hammer core is lifted from the hydraulic The system obtains acceleration energy to increase the impact speed and hit the pile. This also corresponds to two piling theories respectively. The single-acting hydraulic piling hammer corresponds to the heavy hammer light hammering theory. It is characterized by larger hammer core weight, lower impact speed, and longer impact time. It has large penetration, adapts to pile types of various shapes and materials, and has low pile damage rate, especially suitable for driving concrete pipe piles. The double-acting hydraulic piling hammer corresponds to the light hammer heavy-driving theory. It is characterized by smaller hammer core weight, higher impact speed, shorter hammer action time, and large impact energy, suitable for steel pile driving.
Hydraulic vibratory hammer is developed on the basis of electric vibratory hammer. There are mainly conventional type, high frequency type and non-resonant type (usually non-resonant type is also high frequency type).
Different types of vibrating hammers are suitable for different geological environments: conventional hydraulic vibrating hammers have a large amplitude and are suitable for construction in cohesive soils, high-frequency vibrating hammers are suitable for sandy soils, and non-resonant ones are suitable for strict vibration Restricted area. The use of a series of hydraulic vibration hammers can realize the sinking and pulling out of tubular piles, high-strength concrete prefabricated pipe piles, vibratory sunk pipe piles and various steel piles.