Safety assessment for penstock's crater defects;

Safety assessment of surface pit in penstock;

Finite element analysis for penstock's crater defect;

Type design and sectional characteristic calculation of closed profiled steel sheeting;

Construction technology of profiled steel sheeting composite slab;

This paper analyses deformation rules and control capability of profiled steel sheeting and stiffened elements concretely,and bring forward optimization measure of the board of middle case,which would of.

Bounded element method of cathodic protection of steel pressure pipe on hydropower station;

Experiment study on closured weld joint type of pressure pipes

It is analyzed that the welding properties of pressure pipe for water power station and welding technology actuality of pressure pipe both at home and abroad and design one set of automatic welding scheme-solid core wires mixed gas protective pulse automatic welding aimed at the existed problem among automatic welding technology of pressure pipe.