RESEARCH ON CONSTRUCTION TECHNOLOGY OF FRAME TYPE CHANNEL CULVERT TOP ENTERING AND UNDERCROSSING EXISTING RAILWAYS
With the rapid growth of railway transportation demand in our country,the expansion and renovation projects of existing railways have increased.While increasing railway lines,more and more local planned roads need to cross or underpass existing railways to solve local transportation problems due to the limitations of local economic development.The study combines the construction of a 1-6m × 4.8m channel type frame culvert during the renovation process of the existing Chengdu Kunming railway,and takes the top-down construction technology as an example to analyze the top-down construction technology of the frame culvert under the existing railway,in order to provide reference for similar projects.
frame type channel culvertunderpass through existing railwayjacking construction technology
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