blocking hammer meaning in English

双圆头锤

Hydraulic pile hammer is one of the pile driving machines that drive prefabricated piles into the ground in the construction of pile foundation such as construction , bridge , dock , etc . with the development of science and technology , the prefabricated pile driving machines evolve from block hammer , steam - hammer , diesel hammer to hydraulic hammer . hydraulic pile hammer is one of ideal prefabricated pile driving machines because it can adjust stress waveform , decrease stress peak value , prolong effectual action when it drives piles . hydraulic pile hammer is used widely and formed series in developed countries now
液压打桩锤是用于建筑、桥梁、码头等桩基础施工中打入预制桩的桩工机械。随着科学技术的进步，预制桩施工机械由落锤、汽锤、柴油锤，发展到了液压打桩锤。用液压打桩锤打桩，可以调整撞击应力波波形，减小应力峰值，延长有效作用时间，是一种比较理想的预制桩施工机械，目前在发达国家已被广泛使用，并形成了系列化。