This article introduced the cantilever climbing form construction technology of variable section hollow thin-walled pier through scheme comparison and selection.

Constructive technology of thin-wall & hollow pile turning model of bridge in big scene;

Construction technique for thin-walled hollow piers of the Youxi Bridge;

On the construction technique of the thin wall voided pier on Ganxigou No.2 Bridge

Taking the Laomeidong Bridge engineering in Neikun railway as example the features and design key points of climbing form construction of thin wall voided pier group are introduced as well as practical construction technologies and quality requirements.