【正文】
r to ensure the bridge could play the expected economic benefits, so as to ensure the safety and suitability, therefore, the bridge disease maintenance, repair, brook no delay. This design mainly from the curing of the concrete, the problems in the construction and construction site safety measures and so on. Analysis of the safety accidents the phenomenon, causes and preventive measures. Frequently asked questions on the pile, broken pile, impact drilling pile construction steps and corresponding pro