When excavating deep foundation ditch in the lake sediment that filled with deep and thick silt, it is a common technical problem that the upheave which caused by relief loads leading to slope destabilization.

• 摘要在湖泊相沉积的深厚淤泥土场地开挖深基坑，由于坑底卸荷隆起导致基坑边坡位移、失稳是常见的技术难题。