人民长江
人民長江
인민장강
YANGTZE RIVER
2002年
z1期
28-31,45
,共5页
erection of miter gate%measurement control%shipment and handling%welding deformation control%permanent shiplock%Three Gorges Project
The extreme large miter gates of TGP permanent shiplock are of great difficulty in erection,in view of the stringent requirement of precision control and the complicated components.The major erection problems,such as the erection measurement control, the selection of erection position of gate leaf,welding and deformation manipulation,the erection of back tie rods,the installation of apex pintle and prestressing anchorages,etc., had been carefully deliberated, and the optimized approaches were adopted.The erection practice of the miter gate at No.1 lock head shows that the adopted erection technology is safe,reliable and effective, and it may be used for reference for similar miter gates.
