Based on archaeological and historical materials, this paper analyses the materials, types, distribution and fixing methods of drawbridges in ancient Southwest China.

On the basis of hoisting and transportation of Luobuxi Bridge of Yiwan railway and reality of the constructions,this paper illustrates the design and construction of prestressing force chain-formed anchor,makes sure about the structure of cable anchor,the length and depth of anchor rope.

According to conventional mooring style of deep sea gravity cage which involves four-point mooring; normal gridding mooring and oblique gridding mooring, the forces acting on the mooring line are measured by model test under different conditions.

The mechanical behavior characteristics,stabilization state of surrounding rock,deformation mechanism of anchorage,topology effect of tunnel anchorage system of suspension bridge were studied based on numerical simulation method.

Based on numerical simulation results of tunnel anchorage system for suspension bridge,and through validating by similar model field test,the mechanical behavior characteristics,deformation mechanism and stabilization state of rock mass of anchorage system have been researched.

The tunnel anchorage system is an anchorage style which.