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2. Geotechnical investigation - Wikipedia

   en.wikipedia.org/wiki/Geotechnical_investigation

   A USBR soil scientist advances a Giddings Probe direct push soil sampler.. Geotechnical investigations are performed by geotechnical engineers or engineering geologists to obtain information on the physical properties of soil earthworks and foundations for proposed structures and for repair of distress to earthworks and structures caused by subsurface conditions; this type of investigation is ...

3. Soil test - Wikipedia

   en.wikipedia.org/wiki/Soil_test

   In precision agriculture, soil samples may be geolocated using GPS technology in order to estimate the geospatial distribution of nutrients in the sampled area.The geolocated samples are collected using a distribution and resolution that allows for the estimation of the geospatial variability of the soil area where the crop will be grown.

4. Shovel test pit - Wikipedia

   en.wikipedia.org/wiki/Shovel_test_pit

   It designates a series of (c. 0.50 m or less) test holes, usually dug out by a shovel (hence the name) in order to determine whether the soil contains any cultural remains that are not visible on the surface. [2] The soil is sifted or screened through 1/4" or 6 mm wire mesh to recover the artifacts.

5. Cone penetration test - Wikipedia

   en.wikipedia.org/wiki/Cone_penetration_test

   The magnetometer in the cone detects ferrous materials of 50 kg or larger within a radius of up to about 2 m distance from the probe depending on the material, orientation and soil conditions. Standards and use

6. Standard penetration test - Wikipedia

   en.wikipedia.org/wiki/Standard_penetration_test

   The test uses a thick-walled sampling tube, with an outside diameter of 5.01 cm (2 in) and an inside diameter of 3.5 cm (1.375 in), and a length of at least 60 cm (24 in). The sampling tube is driven into the ground at the bottom of a borehole by blows from a hammer with a mass of 63.5 kg (140 lb) falling a distance of 75 cm (30 in). The sample ...

7. China lands on moon's far side in historic sample retrieval ...

   www.aol.com/news/china-makes-historic-landing...

   SINGAPORE (Reuters) -China landed an uncrewed spacecraft on the far side of the moon on Sunday, a landmark mission aiming to retrieve the world's first rock and soil samples from the dark lunar ...