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evaluation of soil compaction measuring devices

Evaluation of Soil Compaction Measuring Devices

measuring devices which monitor the change of soil response due to the application of impact or vibrating force on the soil. All the devices, however, provided a measure of soil densification and they could be used satisfactorily to replace the NDG when they are properly correlated to soil relative compaction.

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Diagnosing Soil Compaction Using a Penetrometer (Soil

Jan 01, 2002· Fracturing or cutting subsurface compacted soil has, in some cases, resulted in remarkable yield increases. Many Pennsylvania producers suspect they have a subsurface compaction problem, but have no handle on how to measure it. A diagnostic tool to measure the extent and depth of subsurface compaction is a penetrometer, or soil compaction tester.

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Field Evaluation of Compaction Monitoring Technology

Field Evaluation of Compaction Moni­ Soil compaction was then displayed in real time on a ruggidized computer monitor placed in the cab of the roller. In essence, this research used the compaction machine as a measuring device to help control the compaction process

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Field Evaluation of Compaction Monitoring Technology

This project involved an extensive field program carried out to identify the relationships between soil engineering properties, as measured by various in situ devices, and the results of machine

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MEASURING SOIL COMPACTION ON CONSTRUCTION SITES:

acterize soil compaction and to find a proper measurement method. Another difficulty is char-acterizing soil compaction in deeper soil layers. Randrup (1997) showed that clay soils on con-struction sites were compacted to depths of 0.8 in (32 in.). A bulk density measurement by the use of core sampling has been described by many (e.g.,

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Field Evaluation of Compaction Monitoring Technology

Abstract. This report documents an extensive field program carried out to identify the relationships between soil engineering properties, as measured by various in situ devices, and the results of machine compaction monitoring using prototype compaction monitoring technology developed by Caterpillar Inc. Primary research tasks for this study include the following: (1) experimental testing and

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Diagnosing Soil Compaction Using a Penetrometer (Soil

Fracturing or cutting subsurface compacted soil has, in some cases, resulted in remarkable yield increases. Many Pennsylvania producers suspect they have a subsurface compaction problem, but have no handle on how to measure it. A diagnostic tool to measure the extent and depth of subsurface compaction is a penetrometer, or soil compaction tester.

More

Development, construction, and field evaluation of a soil

Conventional methods of measuring soil compaction are tedious, time consuming, and expensive. The objective of this study was to develop and evaluate a soil compaction profile sensor (SCPS) that could assist in the assessment of the state of compactness of the soil profile in real-time.

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Development, Construction, and Field Evaluation of a Soil

On-the-go measurement of soil compaction by means of a horizontal penetrometer necessitates the use of a combined sensor to distinguish the effect of soil water content from that of soil

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MEASURING SOIL COMPACTION ON CONSTRUCTION

acterize soil compaction and to find a proper measurement method. Another difficulty is char-acterizing soil compaction in deeper soil layers. Randrup (1997) showed that clay soils on con-struction sites were compacted to depths of 0.8 in (32 in.). A bulk density measurement by the use of core sampling has been described by many (e.g.,

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Development, Construction, and Field Evaluation of a Soil

The objective of this study was to develop and evaluate a soil compaction profile sensor (SCPS) that could assist in the assessment of the state of compactness of the soil profile in real-time. The device developed in this study consisted of eight cutting elements, designed to provide information on soil resistance to cutting for every 7.5 cm

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Simple techniques for estimating soil compaction

The soil compaction process (Harris, 1971) and other means of measurement (Freitag, 1971) have also been described Most penetrometers can be adapted to many uses The Proctor penetrometer was, for example, successfully used to measure soil compaction or hardness caused by the long term effects of continuous and fixed seasonal grazing treatments

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Methods for achieving and measuring soil compaction

Compaction is achieved by applying a pre s s u re on the surface or by vibrating the soil mass. Di f f e re n t compaction methods are needed for different types of soils and the amount of compaction re q u i r ed for dif-f e r ent soils must be established using standard testing p ro c e d u re s. Measuring compaction

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Field comparison of two prototype soil strength profile

Soil compaction caused by wheel traffic of large agricultural Evaluation of this instrument (Glancey et al., 1996) showed that force distri-bution over the tillage depth was linear at a shallow operating device so that it could measure soil mechanical impedance

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Soil Testing Equipment, Soil Density Testing

For testing compaction uniformity and stiffness, Humboldt provides the HD-4129.3F lightweight deflectometer and the GeoGauge, both provide accurate and established methods for this type of soil testing. Also available are plate load testers used to determine bearing capacity of soil

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Assessing soil compaction on Forest Inventory & Analysis

be desirable to add another quantitative measure of soil compaction to the FIA program. Penetrability is a physi-cal property of soils that is frequently used as a measure of the degree of soil compaction. Soil penetrability is a measure of the ease with which a measuring device can be pushed or driven into a soil surface (Bradford 1986).

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Soil Compaction Test Geoengineer.org

When subjected to stress, soil particles are redistributed within the soil mass and the void volume decreases resulting in densification. The mechanical stress may be applied by kneading, or via dynamic or static methods. The degree of compaction is quantified by measuring the change of the soil

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Chapter Five Compaction, Quality Control, and Field

111 NCHRP Project 21-09, Intelligent Soil Compaction Sys- tems, listed the following as desirable features of an IC sys- tem: (1) continuous assessment of mechanistic soil properties (e.g., stiffness, modulus) through roller vibration monitoring; (2) automatic feedback control of vibration amplitude and frequency; and (3) an integrated global

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Laboratory Evaluation of the Briaud Compaction Device

Oct 10, 2009· The Briaud compaction device (BCD) is a simple, small-strain, nondestructive testing apparatus that can be used to evaluate the modulus of compacted soils. The use of the BCD as a field testing device for compacted soil quality control may be more beneficial than the current practice of measuring in situ dry density.

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