What crack width limit would you use to design a diaphragm wall?

Question

Accepted Answer

The crack width limit for designing a diaphragm wall depends on various factors.

The crack width limit is typically determined based on the structural requirements and the type of materials used in the diaphragm wall construction.
In general, a crack width limit of 0.2 mm to 0.3 mm is commonly used for diaphragm walls.
The crack width limit ensures the structural integrity of the wall and prevents excessive water leakage.
Factors such as the type of soil, groundwater conditions, and the presence of reinforcement may also influence the crack width limit.
For example, in cohesive soils with low groundwater levels, a smaller crack width limit may be used to minimize water seepage.
On the other hand, in granular soils with high groundwater levels, a slightly larger crack width limit may be acceptable.
It is important to consider the long-term durability and maintenance requirements when determining the crack width limit for diaphragm walls.

Accepted Answer

0.15mm

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