By researching about the soil condition in Houston, we can see that the soil is really instable in Houston, so it needs really stable foundation structure in order to hold up the whole building. Shallow foundation such as pad foundations, strip foundation or raft foundation will not work as well as Bell bottom pier as it requires surface soils that that are sufficiently strong and sitff to support the imposed loads. The bell bottom piers can be installed in any of the soil and moisture conditions found in Texas.

Information referencing from Dawson Foundation Repair