What is the net vertical load bearing pressure of sedimentary rock?

The net vertical load bearing pressure of sedimentary rock is typically considered to be around 20 tons per square foot (tsf). This value is derived from a number of factors, including the density and strength characteristics of sedimentary rocks, such as sandstone, limestone, and shale, which are commonly used in construction due to their stability and load-bearing capacity.

Sedimentary rocks are formed from particles that accumulate in layers over time. They generally have a compressive strength that allows them to support a significant amount of weight, making them suitable for foundations and structural applications. The value of 20 tsf is generally accepted in structural engineering and geology as a safe estimate for the net vertical pressure, considering the variety of sedimentary rock types and their different compositions.

Establishing this value is crucial for engineers and architects as it influences the design and safety of structures that will be built on such foundations. The other values listed, such as 15 tsf, 25 tsf, and 30 tsf, may not be representative of the typical net vertical load bearing pressure of sedimentary rock, which could lead to unsafe design practices or over-engineering of structures if used inaccurately. Therefore, 20 tsf stands as a reliable benchmark for these materials