Application and Stability Analysis of Drilling and Irrigation Technology in Reservoir Irrigation Tunnel
The irrigation culvert pipes under the reservoir dam,which have been built for many years,have been in service for many years.Poor connection between the pipe body and the dam body has threatened the safety of the earth dam.To ensure the safety of people's lives,property,and water use,power supply,flood control,the irrigation culvert under the dam will be sealed and a new irrigation hole will be opened using non excavation directional drilling technology during this construction.The successful use of D219 non excavation directional drilling in tunneling has reduced construction costs and reduced construction procedures;the drilling fluid pressure is 2.8MPa,and the burial depth of the borehole is set at 200m to ensure the stability requirements of the borehole wall.The project has successfully ensured the irrigation needs of farmland in the area.
non excavationdirectional drillingcement slurryirrigationtunnel
NETL
NSTL
万方数据
维普
