Wednesday, August 13, 2014

Methods of measuring load-bearing capacity of soil

CBR test :


CBR "CBR" means the carrying capacity and a high standard of road engineering in California, compared with a mixture of clay soil or load-bearing capacity of the soil binder, explains. 

A bowl of CBR CBR (diameter 150 mm), which is located in the pressure test is a punch in the continuous feed speed in the sample. California, compared with the corresponding pressure to penetrate the soil to a standard depth of 2.5 mm and 5, and in order to achieve the required pressure is determined by the punch. CBR is then calculated as a percentage of the value. CBR values ​​can also be used when evaluating the resistance of the snow.

Plate load test :


This is painting a pregnancy test soil (underground), and the flexibility of pressure and open site to determine load-bearing capacity outside pursuant DIN 18134. to this, the pressure of the appearance of lines, deformation Carrying capacity of the unit EV2 (see MN / square meter) in the form. The word has the ability to load-bearing soil in the bottom of the earth (or will be within the tolerance of the formation), which is the formation of the maximum pressure under which it is understood. 

Is loaded plate diameter in several stages, depending on the size of the soil particles and the soil is placed in a test panel standard. As mentioned before this is repeated until either the formation or the pressure of the fixed plate.

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