The paper introduces in detail the pre-reinforcement technology and the technical points of Wuhan rail transit Line 2,contracted to build by China Railway 13th Bureau Group Corporation,when Xunlimen station crosses the existent light rail pier foundation.

Fracture mechanics analysis of prestressed consolidation technology used to spandrel gravity dam;

This paper the research status of geologic stratum pre-reinforcement technology in the construction of city tunnel is summarized,then the key of the study on geologic strata pre-reinforcement is the stabilities of coverd geologic strata on the tunnel is pointed out.

The paper describes the whole prestressing reinforcement technology, and expounds an engineering example.

Using long anchor cable reinforcement technique to improve mine rock self-supporting ability;

The reinforcement technique of concrete arch bridge;

Common quality defects of concrete bridges and reinforcement techniques;

Application and research of reinforcing techniques in RC box-rib arch bridge;

Little tremie grouting,systemic rock bolt and horizontal prestressed rock bolt are the most effective reinforcing techniques which have been validated in practice.

Based on the experience of reinforcing the lining split in the arched portion of the Wangjiazhuang railway tunnel,the authors expound briefly in detail a simple and feasible new reinforcing technique for the disaster treatment of the loessal tunnel.