In this article we will discuss about:- 1. Introduction to Well Foundations 2. Caissons and Its Types 3. Shapes 4. Components. Introduction to Well Foundations: Well foundations are one of the types of deep foundations that provide a solid and massive foundation typically for bridges and heavy structures. Well foundations are also useful for transmission line towers, where uplift loads [...]
Construction of well foundation consists of the following stages: 1. Laying the Cutting Edge 2. Alignment Control 3. Construction of Well Curb 4. Construction of Well Steining 5. Well Sinking. Stage # 1. Laying the Cutting Edge: Well foundations are constructed in stages by sinking under self-weight as well as dredging the soil inside the dredge hole and on the [...]
The depth of a well foundation is decided based on the following three considerations: 1. Maximum scour depth below the highest flood level (HFL). 2. Minimum grip length below the scour level. 3. Allowable bearing capacity. The depth of a well foundation is thus equal to the sum of the maximum scour depth and the minimum grip length. D = [...]