When engineers design bar foundation of mason work with flaccid groundsill, they always make checking computations with the flaccid groundsill before they gain the width of the foundation.
有软土下卧层时，按常规方法确定砌体结构条形基础宽度时，需要对软弱下卧层进行验 算，由于验算要考虑基础与相邻基础等应力重叠的相互影响，计算十分繁琐。
Soil below the ground surface.
下层土地面下的土壤
Study on Forecast Model of Lower Layers by the Soil Moisture of Surface Layer;
表层土壤水分预测下层土壤水分的模型研究
With ample moisture stored in the subsoil, the crops matured rapidly.
由于下层土壤湿度大,农作物生长迅速。
Some movement in the building will occur as it settles into the subsoil.
楼房沉到下层土时，楼里就会有动静。
These soils are well developed and contain a subsurface horizon in which clays have accumulated.
发育良好，土表下有一层粘土淀积土层。
the underlying clay, rock, etc
处于下层的黏土、 岩石等.
The soil has a substratum of rock.
这土壤下面有层石头。[这土壤有下层石头。
A sticky, bluish - gray subsurface layer of clay found in some waterlogged soils.
潜育土一种蓝灰色表层下的胶粘的粘土层，见于某些渍水土壤中
immediately below the A-horizon; contains deposits of organic matter leached from surface soils.
土壤中的第二层即表层之下的土层；由通过土壤表层过滤得到的有机物组成。
Experimental Study of the Temperature Field in a Frozen Wall Influenced by a Seasonal Frozen Soil Layer
季节冻土层影响下冻土墙温度场模型试验研究
Cantilever retaining wall design in condition of sick silt base
深厚淤泥土层条件下悬臂式挡土墙设计
A piece cut from a layer of earth or sod.
草皮块从一层土或草皮上切下的一块
To tunnel under(the earth or a surface feature.
挖沟在（土地或表层）之下挖沟
The materials beneath the soil are usually not many feet deep,
土壤层下的部分通常只有几英尺深，
Liquefaction-induced Lateral Spreading of Soil Layer Under Two Mechanisms;
液化土层两种机制下侧向大变形分析
Retaining walls in the stratification of the wall under load displacement
挡土墙在分层荷载作用下的墙身位移
beneath the B-horizon and above the bedrock; consisting of weathered rock.
土层中位于B层之下岩床之上的一层；由风化的岩石组成。
If there had not been a hard layer of rock beneath the soil,
如果不是因为土壤下面有一层坚硬的岩石，