✦ LIBER ✦

Penetration Tests for Measurement of Soil Strength: Assessment of the Contribution of Shaft Friction

✍ Scribed by L. Barone; S. Faugno

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 446 KB
Volume: 64
Category: Article
ISSN: 0021-8634
DOI: 10.1006/jaer.1996.0051

No coin nor oath required. For personal study only.

✦ Synopsis

Contributions of shaft friction to total penetrometer resistance were measured using a new design of penetrometer . Field and laboratory experiments were performed on soil with a range of textures under dif ferent moisture conditions . The relative contribution of shaft friction was greatest in loose sandy soil and in soft sticky clay . In these conditions , shaft friction contributed up to 40% of total penetrometer resistance but in cohesive and compacted soils the ef fect of this friction was generally less . To interpret penetration resistance profiles , it is necessary to operate with a penetrometer fitted with a transducer at the tip and to measure the soil moisture content as a function of depth , especially in clay soil .

📜 SIMILAR VOLUMES

Test methods and measuring apparatus for

Test methods and measuring apparatus for measurement of the dynamic coefficient of friction of brushes

✍ Mateo Milković 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 581 KB

The coefficient of friction is a very important operational characteristic of brushes, which is indirectly measured according to conventional methods by measurement of the tangential forces acting on the brush. Methods making possible measurements of the static and dynamic coefficient of friction ar

An analysis of the ground-penetrating ra

An analysis of the ground-penetrating radar direct ground wave method for soil water content measurement

✍ L. W. Galagedara; G. W. Parkin; J. D. Redman 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 243 KB 👁 1 views

## Abstract The spatial variability of soil water content can be measured with the ground wave velocity of ground‐penetrating radar (GPR) using short antenna offsets, but picking the correct ground wave arrival time is rather difficult. In applying the GPR ground wave method to soil water content e

Development and testing of a novel micro

Development and testing of a novel microcantilever technique for measuring the cohesive strength of intact biofilms

✍ Srijan Aggarwal; Eric H. Poppele; Raymond M. Hozalski 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 245 KB 👁 2 views

## Abstract Cohesive strength is an important parameter for understanding and modeling the mechanics of biomass detachment from bacterial biofilms. It is challenging to measure the mechanical properties of biofilms, however, because biofilms may desiccate when removed from liquid medium and they ar

A Hand-held Instrument for the In situ M

A Hand-held Instrument for the In situ Measurement of Soil Shear Strength in the Puddled Layer of Paddy Fields

✍ C.W. Watts; A.R. Dexter 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 308 KB

Monitoring of soil erosion and assessmen

Monitoring of soil erosion and assessment for contribution of sediments to rivers in a typical watershed of the Upper Yangtze River Basin

✍ J. R. Fan; J. H. Zhang; X. H. Zhong; S. Z. Liu; H. P. Tao 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 377 KB 👁 1 views

## Abstract An assessment of the effectiveness of soil conservation practices is very important for watershed management, but the measurement over a small area does not necessarily represent the truth over a large area. Monitoring of soil erosion and analysis of sediment delivery were carried out i

Cooperative study for the assessment of

Cooperative study for the assessment of therapeutic trials for the spinal muscular atrophies. A methodology to measure the strength of SMA patients

✍ Jay D. Cook; Dr. Susan T. Iannaccone; Barry S. Russman; Frederick Samaha; Ralph 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 329 KB