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DEVELOPMENT OF AUTOMATIC DATALOGGER SYSTEM FOR HEAVY DYNAMIC PENETROMETER

Leiter, A.; Stefanak, J.; Mica, L.
Abstract:
The paper informs about the process of development and testing of dynamic cone penetration test semi-automatic data recorder. Dynamic probing is widely used in-situ testing procedure. The test principle is to drive a rod with a cone tip on its end into a soil by a ram. During the test an operator records the number of blow count and value of torque moment evaluating the soil lateral friction with rods. Keeping the handwritten record during test is a concentration demanding process providing large room for human error. Newly developed recording unit presented in paper would greatly facilitate the operator work by automatic data recording. Technological prototype of datalogger is specialized to operate with Borros DPT machine, which use is widespread in the Czech Republic. The electronic part and firmware development have been done simultaneously with the mechanical unit development. An important feature of the data logging system is the mechanical and functional robustness as a precondition of entire unit reliability. The final continuous digital record then can be effectively processed in order to find correlations between the result of penetration test and the physical index properties of the tested soil.
SGEM Research areas:
Year:
2018
Type of Publication:
In Proceedings
Keywords:
In-situ test; dynamic penetration; device development; dynamic point resistance; prototype testing
Volume:
18
SGEM Book title:
18th International Multidisciplinary Scientific GeoConference SGEM 2018
Book number:
1.3
SGEM Series:
International Multidisciplinary Scientific GeoConference-SGEM
Pages:
287-294
Publisher address:
51 Alexander Malinov blvd, Sofia, 1712, Bulgaria
SGEM supporters:
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
Period:
02-08 July, 2018
ISBN:
978-619-7408-37-9
ISSN:
1314-2704
Conference:
18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
DOI:
10.5593/sgem2018/1.3/S03.037
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