The vacuum mud jacking technology application in Dubu No.3 Bridge

The article details the principle, engineering method, technical features and quality requirement of vacuum-assisted grouting technology combining with the practical use of it in the engineering of Qianshan Road Bridge of Hefei.

Based on the pre-stressed bridge construction,the technology of construction and attentive proceedings of the assisted mud-jack in void during construction was obtained.

As a new technique for construction of post-tensioned concrete structures,the vacuum mortar suction technique is currently being applied to a good many major bridges.

Preparation of nanocrystalline metallic copper with vacuum warm-pressing technique;