Construction Technology for the Upgoing Line Exit Zone of Xiejialiang Tunnel;

The paper introduction the major monitoring & control methods,and also the influence with Shijialiang tunnel and Xinlongfeng railway.

The quick construction technique for main cave hard rock of Nanliang tunnel entrance;

On reiforcing placing mold of the flange plate of box girder through the tunnel of passenger dedicated express line;

Study on karst waterburst mechanism and prevention countermeasures in Yuanliangshan tunnel;

The analysis on the features of karst water burst in the Yuanliangshan tunnel;

Comprehensive advance geology prediction adopted in Yuanliangshan tunnel;