Hello all,
I have a question (geotechnical engineering) regarding Armor grading based on CIRIA C683. I'm involved in some armor grading issues (as an example 60 to 300 Kg).
The grading is done based on weighing around 250 samples. It seems that M50 is calculated as the average weight of all...
Hi.
To investigate the friction between concrete and rock in a project insitu direct shear test was performed which consisted of 3 blocks and each block was assigned to a specific normal load. The concrete blocks were cast in place as 70 x 70 cm in plan and 30 cm in height. The normal loads were...
Hi,
I am searching for a correlation between the permeability values obtained by Lefranc and Lugeon field tests. In other words, the permeability of a rock in Lugeon unit is calculated (upon completion of a Lugeon test) and the corresponding permeability in Lefranc method (i.e. say in cm/sec) is...
Hi,
I am searching for a correlation between the permeability values obtained by Lefranc and Lugeon field tests. In other words, the permeability of a rock in Lugeon unit is calculated (upon completion of a Lugeon test) and the corresponding permeability in Lefranc method (i.e. say in cm/sec) is...
Hi,
I am searching for a correlation between the permeability values obtained by Lefranc and Lugeon field tests. In other words, the permeability of a rock in Lugeon unit is calculated (upon completion of a Lugeon test) and the corresponding permeability in Lefranc method (i.e. say in cm/sec) is...
Hi,
I am searching for some case histories regarding the use of the following improvement methods in dam foundation anywhere in the world:
1- Dynamic Compaction
2- Dynamic Replacement
3- Deep Soil Mixing (as cutoff element- preferably not as a rehabilitation / remediation case)
4- Preloading...
Hi,
Some test piles have been statically tested both axially and laterally.
About Axial Loading Test:
The final settlement for the most of the axial loading tests exceeded 30 mm. At this stage, the settlement criteria for the piles have yet to be specified, however for two different areas the...
Hi to all,
I appreciate any comments on insitu methods regarding the direct measurement of soil natural density in deep depths, where no field density test- say by sand bottle- is practical.
Please note that I do not mean indirect estimation by correlation of SPT or CPT values.
Regards
Hi,
Receiving any reference and / or papers regarding the topic: "Practical design procedures for block-type and wall-type improvement by DSM method" is kindly appreciated.
I have access to the book "The Deep Mixing Method, Principle, Design and Construction", by CDIT, Japan. It is a very useful...
Hi to All,
There is a site the soil texture of which is unsaturated hard clay. Bored-and-cast-in-place concrete piles are designed for heavy loads. At the same time the risk against saturation of the site is being taken into consideration by designing the same pile type using the undrained shear...
Hi to All,
There is a site where the layer texture is hard lean clay. Ground water table has not been observed down to 50 m (i.e. maximum depth of drilling). SPT has been performed for qualitative assessment of the texture as well as collecting disturbed samples (SPT values are all “refusal”)...
Hi to All,
The construction of a cut-off-wall in which the panels are excavated by cable-suspended mechanical grabs (about 6 metric tones in weight) is under progress. The panels are filled with plastic concrete, using tremie tube. The texture of the layers to be excavated is, highly weathered...
Comments on the most suitable and practical tests (both field and laboratory) to investigate the mechanical properties of clayey gravels is appreciated.
It is usually very hard to trim the samples for triaxial (if suitable shellby or corebarrel sample could be collected),for many cases also the...
