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The foundation pressure used in the pressure grouting is equal to _________________

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in Irrigation Engineering by (75.2k points)
The foundation pressure used in the pressure grouting is equal to _________________

(a) 2.0 D N/cm^2

(b) 2.5 D N/cm^2

(c) 5.0 D N/cm^2

(d) 3.0 D N/cm^2

The question was posed to me in exam.

Query is from Gravity Dams topic in division Gravity Dam Design and Construction of Irrigation Engineering

1 Answer

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by (106k points)
The correct choice is (b) 2.5 D N/cm^2

For explanation I would say: The grouting pressure is kept as high as possible without lifting the foundation strata and the pressure used in this grouting is equal to 2.5D. It is carried out only after some portion of the dam section is laid and is generally done in stages of depth equal to 15 m or so.

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