what are the causes of failure in deep excavation? and what is the measure to prevent...

what are the causes of failure in deep excavation? and what is the measure to prevent these failures in deep excavation?

Expert Solution

Causes of failure in deep excavation are as :-

- when the soil around the excavated part is dry and doesn't hold together soil particles.

- Failure also occurs due to the wet weather and vibrations of nearby construction equipments.

- Due to inadequate site investigations failure occurs.

- Failure occurs when there is a poor communication between the designer and the constructor.

- Failure occurs due to inadequate quality of structural detailing .

- Failure occurs due to lack of appreciation by the designer of the limitations of the specialist techniques such as diaphragm walling and anchoring.

- Failure occurs due to change in condition of soil and rock and lack of appreciation by the constructor of the possible consequences.

- Failure occurs due to overloading of soil support structure by temporary plant loads.

Prevention of failure are as :-

- Failure can be prevented when there is a good communication between the designer and the constructor.

- It can be prevented when installing moisture barriers.

- It can be prevented by proper investigation of the site.

- It can be prevented by improving the quality of structural detailing.

- It can be prevented when constructor is fully aware of the consequences of change in soil and rock conditions at site and must have knowledge of how to tackle this problem.

Ally Wells answered 1 year ago

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