Atterberg limits

March 13, 2019 admin 0

The Atterberg limits are a basic measure of the critical water contents of a fine-grained soil: its shrinkage limit, plastic limit, and liquid limit. Depending […]

Proctor compaction test

March 13, 2019 admin 0

The Proctor compaction test is a laboratory method of experimentally determining the optimal moisture content at which a given soil type will become most dense […]

Geotextiles

March 13, 2019 admin 0

Geotextiles are permeable fabrics which, when used in association with soil, have the ability to separate, filter, reinforce, protect, or drain. Typically made from polypropylene […]

Rock mass rating

March 11, 2019 admin 1

The Rock Mass Rating (RMR) System is a geomechanical classification system for rocks, developed by Z. T. Bieniawski between 1972 and 1973. It combines the […]

Water table

March 10, 2019 admin 0

The water table is the upper surface of the zone of saturation. The zone of saturation is where the pores and fractures of the ground […]

Tunnel boring machine

Tunnel boring machine

March 9, 2019 admin 0

A tunnel boring machine (TBM), also known as a “mole”, is a machine used to excavate tunnels with a circular cross section through a variety […]

Tunnel Construction

March 9, 2019 admin 1

Tunnels are dug in types of materials varying from soft clay to hard rock. The method of tunnel construction depends on such factors as the […]

Engineering geology

Engineering geology

March 9, 2019 admin 1

Engineering geology is the application of the geology to engineering study for the purpose of assuring that the geological factors regarding the location, design, construction, […]

Earthflow

Earthflow

March 8, 2019 admin 0

Earthflows can occur on gentle to moderate slopes, generally in fine grained soil, commonly clay or silt, but also in very weathered, clay-bearing bedrock. The […]