青云翻译

Diversion tunnel excavation, two storeys to. Half of the excavation hole behind el985 platform from plant to annex to the surge tank water to build a tunnel adit, and then carry out excavation upstream and downstream, respectively; second half of the hole dug excavation methods used Shifang Ming.

Excavation of diversion tunnel upper and lower layers. Excavation of the upper cave EL985 platform from behind the building to the annex building a construction of diversion tunnel Chamber ADIT, and then dig up downstream; half-hole excavation under Shi Fangming digging method used.

The derivation tunnel excavates about the minute two to carry on.Previous half hole excavating presses the room appendix from the workshop the EL985 platform to the derivation tunnel accent to construct a construction hole, then the distinction upward downstream carries on excavates; The next half h

diversion tunnel digging holes in the multi-level sub. The first half of the hole digging EL from plant behind 985 platform to divert pressure tunnel room annex built loop holes, and then to work upstream-downstream to dig the digging holes; the second half a stone cut-and-methods.

Excavation of diversion tunnel upper and lower layers. Excavation of the upper cave EL985 platform from behind the building to the annex building a construction of diversion tunnel Chamber ADIT, and then dig up downstream; half-hole excavation under Shi Fangming digging method used.