# Shear strengths of GCLs

### Description

Data sets covers the shear strengths from geosynthetics

### Arguments

`cohesion` |
a numeric for the cohesion, in kPa |

`friction angle` |
a numeric for the inner friction angle, in degree |

### Details

The data set contains several columns : cohesion, friction angle, unit grivity, investigator, published year, rock name.

### Value

Returns a matrix that contains above values for each GCL included in the data set.

### Note

Please read the following references for the original data (adopted from):

[1] McCartney, J.S., Zornberg, J.G., Swan Jr., R.H., Gilbert, R.B., 2004. Reliability-based stability analysis considering GCL shear strength variability. Geosynthetics International 11 (3), 212-232.

### Author(s)

Xingzheng Wu xingzhengwu@gmail.com

### References

Wu XZ. 2013. Implementing reproducible data analysis and statistical computing for the geosciences in R. Computers and Geosciences. submitted.

### See Also

Wu XZ. 2013. Probabilistic stability analysis considering correlated GCL shear strengths. Geosynthetic International. 20(5): 344-357.

### Examples

1 2 3 4 5 6 7 8 | ```
##---- Should be DIRECTLY executable !! ----
##-- listing data.
GCLShear[["name"]] ##column named "name"
which(GCLShear[["name"]]=='Young') ##returns a vector of the indices of x
which(GCLShear[["type"]]=='Melange') ##returns a vector of the indices of x
GCLShear[which(GCLShear[["type"]]=='Melange'),]
##listing a matrix where the soil type = 'MBC'
``` |