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[matsuyama1]

I did liquid limit /plastic limit test of 2 different samples. LL of first sample is found to be 80 while that of other is found to be 30. i am much confused with which soil is more susceptible to landslide occurrence ? Why ? Can anybody reply me linking LL property of soil with change in other geotechnical properties ? Can anybody respond me ?

Kiran Acharya

 

[GeoPaveTraffic]

Typically, higher liquid limit materials will have a lower effective phi angle.

Several relationships between phi angle and plasticity index have been prepared over the years. The two that I use most offten are presented by Lambe and Whitman in Soil Mechanics 1969 and in the 1971 version of NAV FAC 7.

 

[Gimbli]

Normally the higher the LL, the lower the internal friction angle (phi)therefore the more susceptible to slope failure. Nevertheless, slope stability analyses are a very delicate geotechnical matter and shall always be evaluated by a geotechnical professional. Slope stability depends on slope geometry, type of soil, groundwater, if it is in long term or short term basis, among other aspects. I suggest you let that to a geotech.

 

[fattdad]

depends on the sand content, the overconsolidation ratio and the undrained shear strength. I wouldn't trust any correlation that is just based on LL as there are other important variables.

f-d

¡papá gordo ain’t no madre flaca!