Abstract
Impact loads caused by punching pile construction of highway bridges are bound to disturb stratum surrounding the buried pipeline adjacent to, which would adversely affect the normal use and safe operation of buried pipelines. Through developing field micro-seismic trial, the characteristics of vibration attenuation and sphere of influence were analyzed, in order to assess its impact on buried pipeline nearby. It drew conclusions that the amplitude of vibration energy had been enlarged with the presence of the pipeline; It should conduct the surface peak velocity above the pipeline as the main control index in routine vibration monitoring of pile foundation construction adjacent to buried pipeline; by positioning analysis of impacting vibration source, the rupture area of rock and soil around the pipeline caused by the vibration was determined, and security measures for pipeline protection was proposed. It provides a new method of control technology for pile foundation construction.
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