Furthermore, the long distance and large amount of transport of concrete made construction much more difficult, so it had better to choose the prefabricate members.
The box body prefabricates a compound ring enclosed type ground net, and an earthing pole is reserved at the upper part of the box body;
箱体预制复合环形封闭式地线网，并且在箱体上部留出接地极；
2
A simulation of dynamic forces acting on invert prefabricates in TBM construction tunnel is made with surrounding rock-structure model by using ANSYS software.
Spatial core Liang prefabricates USES the integral-type assembling template, prefabricates in the field to concentrate the prefabrication, the flatbed transports by cart, crane installment.