High Precision Sinking and Butting of Super Wide and Width Variable Tube Segments
The ANSYS Mechanical APDL software analysis module is used to calculate the underwater compression condition of the ultra-wide and width variable tube section of immersed tunnel of the Shenzhen-Zhongshan Link Project.GPS RTK is the main method for measuring and positioning the sinking and docking of the ultra-wide and width variable tube segments,with the assistance of total station,the key steps are reviewed.After the tube segments is installed,the laser rangefinder is used to measure the net height according to the detection point of the prefabricated tube section,and the attitude of the tube section and the attitude of the measuring tower are monitored more accurately.The measurement error caused by the deformation of the tube section caused by the widening of the ultra-wide tube section is eliminated,and the high-precision sinking and butting of the tube section is realized.
Shenzhen-Zhongshan Link Projectimmersed tunnelultra-wide and with variable tube segmentssinking and buttingtube segment deformation
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