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.

As the important tools,bolt installing equipments are used in supporting work for underground mines.

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.