Abstract In light of the investigation of current design specifications and open-cut tunnel projects, the waterproof construction method and theory of deformation joints are summarized. Based on the principle of combination of water blocking with draining for the deformation joints, a drainable waterstop may be used to enhance water tightness for tunnels near the sea as well as for submerged tunnels. Considering the geological conditions and requirements for the open-cut section of the Gongbei tunnel, a drainable waterstop may be used for the waterproofing of deformed joints, and a drain pipe junction is designed for the inner side of the tunnels and used as the drain path for leakage water.
Abstract：
In light of the investigation of current design specifications and open-cut tunnel projects, the waterproof construction method and theory of deformation joints are summarized. Based on the principle of combination of water blocking with draining for the deformation joints, a drainable waterstop may be used to enhance water tightness for tunnels near the sea as well as for submerged tunnels. Considering the geological conditions and requirements for the open-cut section of the Gongbei tunnel, a drainable waterstop may be used for the waterproofing of deformed joints, and a drain pipe junction is designed for the inner side of the tunnels and used as the drain path for leakage water.
.Optimization of the Waterproof Structure of the Deformation Joints at the Open-Cut Section of the Gongbei Tunnel[J] MODERN TUNNELLING TECHNOLOGY, 2017,V54(2): 34-39
2017, Vol. 54 