The traditional light frame method of slope protection has been widely used in protecting slope and embankment of railway and highway.

In this paper,a new approach is introduced to solve the problem on the com- puter-aided automatic marking of tolerance code letters for shape and position by means of tolerance framing sub-program and reference code letter sub-program.

Test research of the reinforced concrete fundamental frame structure with autoclaved aerated concrete masonry infilled in multi-ribbed walls;