Research On Vibration Reduction In Engineering By Gravity Wall And Channel

Vibration is very common during the course of production and in everyday life. At the same time vibration also brings a great impact on production and everyday life,especially vibration from practical engineering brings more and more impact on the surrounding environment. So researches on measures of vibration reduction are getting very important.With the continuous development of the society and economy and with the continuous expansion of city size in China, there have been more and more construction projects in cities. The influence of vibration from urban transport system and construction project sites on people's living and working environment is in an upward trend. Therefore, the application of vibration reduction measures are getting much broader during the course of production and in everyday life. With the rapid development of computers, the numerical method are getting more and more important in studies of vibration reduction besides test. As a kind of approximate calculation method, the numerical method can continuously improve the precision of analysis by using computer resources and make the result much closer to the actual one. And it can also greatly reduce the cost of test, shorten the research cycle and improve the efficiency. So, the numerical method has been the primary means of solving engineering problems.Researches on vibration reduction by gravity wall and by channel has been carried out through analyzing the vibrational chain system of vibration source-vibration reduction measure-target by test and FEM motheds. Tests are carrid out on model of vibration source-gravity wall-measure points and dynamic response data of measure points are achieved under impactive loads.Then set up the FEM model in ANSYS and carry out numerical simulative calculation. Compare the calculation results with the test data and achieve good results and get some conclusions through analysis. In addition, same calculation and analysis have been done to the model of vibration source-channel-measure points in ANSYS by FEM numerical method and some conclusions are got too. At the same time,list the influencing factors of vibration reduction by channel,including the depth of channel, the position of measure points and vibration source, and also different geologic environment. Related data and charts show the different influence of these factors on vibration reduction by channel. Conclusions from this article can supply reference to researches on measures of vibration reduction in engineering and offer related data for design of measures of vibration reduction.