This document discusses methods for improving soil bearing capacity. It defines soil bearing capacity as the maximum pressure the soil can support without failing. Six main methods are described: increasing foundation depth, compacting the soil through surcharging, sand piles, or vibration; draining saturated soil; confining loose soils with sheet piles; grouting cracks and voids; and chemically treating soft soils. Compacting and draining are the most common and economical methods.