waithiraallan
waithiraallan waithiraallan
  • 01-04-2022
  • Geography
contestada

how is shaft method carried out​

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mandylazy
mandylazy mandylazy
  • 03-04-2022
The method consists in drilling the holes and then injecting a slurry of water and cement under pressure through the holes till they are completely sealed off. In the past injection was done at low pressures like 6 kgf/cm2 but it has been proved that high pressure of the order of 300 kgf/cm2 can be used successfully
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