Ho seha ha Trench Re-mixing Deep wall (TRD ka bokgutshwane) e fapane le ya Soil Mixed Wall method (SMW). Ka mokhoa oa TRD, lisebelisoa tsa saha tsa ketane li behiloe karolong e telele ea "rectangular post" ebe e kenngoa mobung, hore e tsamaisoe ka tsela e fapaneng bakeng sa ho itšeha le ho tšela grout, ho kopanya, ho sisinyeha le ho kopanya mobu sebakeng sa pele, etsa lebota la diaphragm ka tlasa lefatshe.