Thejagielskifamily: Diagram Dynamic Cone Penetrometer

Diagram Dynamic Cone Penetrometer

Make sure connections are tight and secured. Place marking stake approximately 4 6 along the side of the penetrometer.

Effect Of Grain Size Gradation And Relative Density On Shear Strengt

Astm d6951 d6951m 18.

Diagram dynamic cone penetrometer. D6951 d6951m 18 standard test method for use of the dynamic cone penetrometer in shallow pavement applications penetration rate density pavements dynamic cone penetrometers products and services standards publications standards products. A typical dynamic cone penetrometer dcp consists of two steel shafts. The dynamic cone penetrometer dcp technology for road pavements originated in the early 1970s at the transvaal provincial administration roads branch see plate 1.

Dynamic cone penetrometer description. The upper shaft has a handle at the top. The hammer is fitted to this shaft and able to slide freely on it.

Place penetrometer gently on testing area with pointed end down 3. In operation they are fitted together to form a single shaft. Since then dcp data interpretation has improved tremendously owing to the full scale structural evaluation of pavements with the heavy vehicle simulator hvs technology.

Loose connections could result in equipment damage. The original dynamic cone penetrometer dcp was developed in 1959 by the late professor george f. It is used by mndot and mnroad to conduct pavement research because it is easy to transport and inexpensive to operate.

The dcp uses a 15 lb 68 kg steel mass falling 20 in 508 cm that strikes the anvil to cause penetration of a 15 in 38 cm diameter cone 45 vertex angle that has been seated in the bottom. The dcp and its uses are fully illustrated and described in this user guide to the dynamic cone penetrometer. It was initially developed in the 1950s at the dutch laboratory for soil mechanics in delft to investigate soft soils.

Dynamic cone penetrometers dcp provide quick field determinations of soil shear strengths at depths up to 6ft 18m with optional extensions. The cone penetration or cone penetrometer test cpt is a method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy. The dcp is an instrument designed for the rapid in situ measurement of the structural properties of existing road pavements constructed with unbound materials.

Pencil marking stake 3. Assemble parts with the use of the diagram. Dynamic cone penetrometer hammer 2 connecting rods tip 2.

Developed by the army corps of engineers dynamic cone penetrometers dcps provide a low cost efficient test method for quickly determining in situ cbr values of pavement base subbase and subgrades. Dynamic cone penetrometer dcp which is used to determine the strength of subgrade and base layers. 52 dynamic cone penetrometer dcp test 521 general.

They can readily be used for depths up to 30 and up to 6 with optional drive rods and extensions. The dynamic cone penetrometer. This accurate and portable field equipment measures soil properties that can be related to cbr or resilient modulus laboratory values.

The dynamic cone penetrometer dcp test was developed by transport and road research laboratory trrl england.

Dynamic Cone Penetrometer Download Scientific Diagram