In this paper,at first,a finite element three-dimensional modal is built by ANSYS program for a coal-conveyer-gallery which has been used for 10 years.

It is unavoidable, the coal-conveyer-gallery works with double feeding straps, when generating electricity with full or beyond designed capability.

Optimization of profiled bar selection for coal conveying viaduct;

Through the use of economic comparison between viaduct and reticulated framed structures used in coal conveying viaduct, the reticulated framed structure is proved an advanced and economic technology adopted in large span coal conveying viaduct.

The design of the coal handling gallery for 2×300 MW coal-fired units in Wenzhou Power Plant,phase II adopted a new torsion type inte-gral mesh frame structure,which was analyzed by 3-dimensional force applied.

Pointing to the problems existing in conventional design of the coal handling gallery in thermal power plants and combining the structural design of the coal handling gallery in Hebei Dingzhou Power Plant (2×600 MW), the author has optimized the structures of the coal handling gallery according to the structural systematic scheme and structural analysis method and obtained the economic benefits.

Moreover,the installation problems of coal handling gallery of span concentrated control building are solved by applying high level sliding construction technology.