Mechanics property and adaptability of approach slab;

With the typical geological condition and road filling in Ningbo, the causes for bump at bridge head are analyzed and proposals recommended, using CMC jointly with the approach slab to solve the problem by reducing differential settlement at the abutment.

In this paper, finite element method is employed to analyze the mechanical behaviors of approach slabs between bridge abutment and pavements subject to axle loadings.

In this paper with introduction on the design method of abutment back in China and abroad and based upon the united design principle of bridges, culverts and abutment back the butt strap method is introduced from slope gradient, length, thickness, reinforcement and other aspects.

Taking the building of the stand of WDJ bowl-shaped multi-functional steel scafford during the box beam construction by pour steel concrete on the spot in Dongxin Highway Project in Guangzhou as an example,the calculation of force-supporting of the stand has been proved and usual building approach is provided.

Safe construction technology for the erection of cantilevered scaffold

Based upon introduction of construction technology and safety control cases of typical high formwork support system problems related to erection of support system,reinforcement and formwork removal and other aspects are discussed in order to ensure construction quality and realize effective safety control.

Meanwhile according its composition and construction operation the erection process of steel pipe scaffold is proposed.