Research on the Split Launching Technology of Short Structure Shaft Shield in Water-rich Sand Layer
In order to solve the problem of high construction risk caused by low efficiency in the process of split launching,combined with the engineering example of Xi'an Metro Line 14 shield split launching in full-section water-rich sand layer,this paper analyzes the optimal structural dimensions that meet the requirements of shield launching,and determines the reasonable split launching procedure and pipeline extension scheme.According to the construction requirements,the horizontal transportation technology of shield construction and the common technical problems and solutions in the launching process are emphatically analyzed.
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