Yes, we have letters, studies, and excerpts from a PhD dissertation that question the feasibility and worthiness of the "pushed pile" repair method. You can find these documents at https://www.dawsonfoundationrepair.com/engineering-information/ We have additional information at: https://www.dawsonfoundationrepair.com/pressed-piles-problems/ In addition, the independent structural engineers at A-1 Engineering have referred to the "pushed pile" method as "USELESS FOUNDATION REPAIR", "THE COMMON TYPE OF BAD PILE – THE CONCRETE PRESSED PILE", and "WHY LEVELING A HOME WITH CONCRETE PRESSED PILES DOES NOT WORK". Click on the following link to read more. http://www.a-1engineering.com/foundationrepairscam.htm