1. Its value decreases
  2. Its value remains the same
  3. Its value increases
  4. Its value depends upon length of wall
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1 Answers

Option 1 : Its value decreases

Explanation:

Long wall and short wall method:

  • In the long and short wall methods, the length of longwall generally reduces from earthwork to brickwork in superstructure whereas the length of the short wall rises.

Mathematically,

Long wall-length = Length of centre line of longwall + Width of item

Short wall-length = Length of centre line of short wall - Width of item

As the width of the foundation wall is greater than the width of brickwork. It is concluded that short wall length is increased from foundation to brickwork.

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