Abstract：Research purposes: Steel spring floating slab track may solve the problems of vibration and noise caused by the running train on intercity railway , but the construction quality of steel spring floating slab track is a main factor influencing the efficiency of reducing vibration and noise，so it is necessary to do the research on it.
Research methods: Based on the principles of integration of theory with practice，design guiding construction and construction optimising design，and in combination with the practical example，the explanation is given to the construction technique of steel spring floating slab track from the order of construction procedure，the key links are focused on and the issues for attention in construction are made clear.
Research conclusions: Compared with the traditional construction technique，this construction technique is more advanced and mature with high requirement of grouting concrete into the bottom slab of roadbed to make the foundation of vibration isolator firmer. A special support shelf is designed for adjusting rail easily when laying rail so as to ensuring the construction quality. When the fastenings are installed，the rubber gasket is replaced by wood gasket for keeping mortar from going into the gasket hole，and avoiding reconstruction and waste time in order to ensure the construction procedure. The jack-up should be implemented by three or four steps so as to reduce or eliminate elastic deformation of the spring of vibration isolator for the purpose of ensuring the construction quality and the reduction performance of vibration isolator.
2007, Vol. 24 
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