1) heteromorphic block
Based on an analysis of the initial motion theory of rock mass lying on slopes under flow action, a formula was derived for calculation of the average diameter of heteromorphic blocks according to the ultimate balance condition.
2) deformed concrete building block
With the help of home-made deformed concrete building block it can solve the problems that are bad impressions quality,many alike-joints and creating vertical cracks.
3) special shaped concrete armor blocks
Data and information of nearly 130 types of special shaped concrete armor blocks developed both at home and abroad have been collected,out of which,those which are often used and those which were developed in the last decade are expounded systematically.
4) concrete wedge
A lot of data from tests and prototype observers as well as research results aroand the world have supported the conclusion that concrete wedges are ideal protection materials for spillways of earth and masonry dams,and flowover weirs.
5) composite structure of special-shaped columns with concrete small hollow blocks
6) abnormity concrete component
special section steel
，一、u以uu、’“飞豆on gQngC01异形断面钢材(speeial Seetion steel)见异形断面型材。