Abrégé

The present invention relates to the field of underground space constructions, and more particularly, relates to a method for construction of an underground space structure across a stratum in a vadose zone. The present invention employs a pre-buried vadose water pipe in combination with a water-leveling communication pipe to achieve a replenishment effect with respect to groundwater levels at two sides of a structure, thereby mitigating the problem of vadose water being blocked by the structure, and minimizing the impact on water supply in downstream regions. In the invention, upstream vadose water is collected and supplied to downstream regions via a communication pipe, thereby ensuring normal springwater supply in downstream regions.

Classes IPC  ?

• E02D 29/045 - Ouvrages souterrains, p. ex. tunnels ou galeries, creusés à ciel ouvert ou par des procédés impliquant une perturbation de la surface du sol tout le long du tracéLeurs procédés de construction

Abrégé

Disclosed is a blocking and drainage combined treatment method for water leakage at a construction joint of a secondary lining of a tunnel. According to the method, water is blocked by means of an anchor bolt (3) and a rubber waterstop (5), and the water is then naturally drained via a drainage channel (6) and a drainage pipe (9). The method does not change the current structure of the secondary lining (12) of the tunnel and is not very destructive, thereby effectively preventing the cracking of a lining and not influencing the safety and usage of a tunnel. Moreover, the construction steps of the method are simple and have high operability, and a blocking and drainage combined system is formed to realize natural drainage.

Classes IPC  ?

• E21D 11/38 - Imperméabilisation à l'eauCalorifugeageImperméabilisation acoustiqueIsolation électrique
• E21F 16/02 - Drainage de tunnels