Some study about this found thatthe the tension of installtion cable and the physical characteristic of seabed cannot beignored for studying the initial penetration of VLA.

The following paper illustrates pre-stressed tensioning technique from stretching apparatus,tensioning control,tensioning operation,stretching order,tensioning procedure,anchorage installation and safety problem,and discusses the control of pre-stress loss in the stage of tension,in order to ensure the construction quality of pre-stressed concrete beam slab.

Construction methods, quality requirements and quality control for installation of tie rods in anchorage blocks of Shantou Bay Suspension Bridge, and technology of production and casting of large volume concrete for the blocks are presented.