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工作条件系数

工作条件系数 γc1, γc2 可根据土体类型和结构长度和高度的比值 L/H 按下表选用:

土类

γc1

γc2

L/H≥ 4

L/H≤1.5

Coarse-grained with sand aggregate and sands, except fine and silty

1.4

1.2

1.4

Fine sands

1.3

1.1

1.3

Fine sands with silt (low-moisture)

1.25

1.0

1.2

Fine sands with silt (saturated)

1.1

1.0

1.2

Clay and coarse with clay aggregate consistency index of soil or aggregate IL 0.25

1.25

1.0

1.1

the same with the 0.25 < IL 0.5

1.2

1.0

1.0

the same with the IL > 0.5

1.1

1.0

1.0

注:

1. 对于柔性结构, γc2 取1.

3. L/H 比值介于1.5和4之间时, γc2 根据土类插值使用.

4. loose sands γc1γc2 均取1

工作条件系数 γc 可根据岩/土体类型按下表选用:

γc

Sands, except silty

1.0

Silty sands, and clay soils in a stable condition

0.9

Clay soils in the unstabilized state

0.85

未风化

1.0

微~中风化

0.9

强风化

0.8

参考文献:

SP22.13330.2016

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