Intelligent Soil Compaction Technology: Results and a Roadmap Toward Widespread Use

Petersen, David L.; Siekmeier, John; Nelson, Charles R.; Peterson, Ryan L.

doi:10.3141/1975-11

Cited by 17 publications

(12 citation statements)

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“…4 and 5, it can be observed that the recorded MDP values resulted in relatively "well-shaped" histograms, as compared with the recorded CMV values. This is not surprising, as the recorded CMV values are affected by the characteristics of underlying soil layers, which potentially makes them more variable and which can cause the histogram data sets to have secondary peaks around the mean (Peterson et al 2006).…”

Section: Roller Measurementsmentioning

confidence: 99%

“…Since the introduction of CCC and IC compaction equipment, several field studies have been conducted to evaluate the effectiveness and productivity of these new technologies (e.g., Thurner and Sandström 1980;Adam 1997;Adam and Brandl 2003;White et al 2005;Peterson et al 2006). In the early stages of development of these technologies, it was discovered that vibratory-based CCC and IC systems held significant promise for compaction of coarse-grained materials (e.g., sand and gravel, Adam 1997;Adam and Brandl 2003).…”

Section: Introductionmentioning

confidence: 99%

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A Comparison of Simultaneously Recorded Machine Drive Power and Compactometer Measurements

Meehan

Tehrani

2011

Geotechnical Testing Journal

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Continuous compaction control (CCC) systems are data acquisition systems installed on compaction equipment that continuously collect real-time information about the operation and performance of the compactor. An experimental research study was conducted to examine the type of data that is recorded by CCC equipment during road sub-base compaction of "select fill" granular materials using a smooth-drum vibratory roller. A prototype roller was utilized that allowed for simultaneous real-time machine drive power and compactometer measurements, which permitted independent and simultaneous evaluation of the degree of compaction of the soil. The behavior of the recorded machine drive power and compactometer values for different lifts and with increasing compactive effort for a single lift is presented and discussed. The statistical nature of the recorded CCC data sets is explored in detail, with a focus on distribution fitting assessment techniques that are applicable for CCC data. Comparisons are also made between the simultaneously recorded machine drive power and compactometer measurements. The results and associated discussion that are presented are useful for understanding the variable nature of CCC data sets, and the observations that are made have practical implications for the creation of CCC construction specifications that are to be used to control the compaction process.

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Section: Roller Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Comparison of Simultaneously Recorded Machine Drive Power and Compactometer Measurements

Meehan

Tehrani

2011

Geotechnical Testing Journal

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“…Thompson [4] , White [5] 和 Rinehart 等人 [6] 通过试验验证了 ACT 监控指标与土料压实性能之间具有较强的相关性, 证明了 ACT 技术的有效性. 基于此, ACT 技术得到了广泛应用, 尤其是一些国家已将其作为道路施工的规范或标准, 如德国(ZTVE STB97), 奥地利(RVS8S.02.6), 瑞典(VÄG94), 荷兰, 芬兰和美国等 [7] . 但是, 上述研究针对的是道路施工质量控制领域, 由于土石坝施工质量控制要求的碾压质量参数, 压实指标和施工工艺与道路施工不同, 现有技术并不能完全适用于土石坝碾压质量的监控.…”

Section: 引言unclassified

高心墙堆石坝碾压质量实时监控技术及应用

崔¹,

刘²,

钟³

2011

Sci. Sin.-Tech.

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“…It is evident that the use of PFWDs is more trusted if they show good correlation to the FWD. Where they have been used as a quality control tool and this has been demonstrated through current FHRP projects such as 'Intelligent Compaction' (2).…”

Section: Background To the Use Of Lightweight Deflectometersmentioning

confidence: 99%

Review of Lightweight Deflectometer for Routine in Situ Assessment of Pavement Material Stiffness

Fleming

Frost

Lambert

2007

Transportation Research Record: Journal of the Transportation R

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• This is a journal article. It was published in the journal, Transportation Fleming, Frost, and Lambert 2 ABSTRACT The use of a portable lightweight deflectometer (LWD) for construction quality control or material investigation for earthworks and road construction is increasing around the world. This paper reviews the LWD as a field evaluation tool, discusses the test variables and data quality and concludes both on its usefulness and also its limitations for a variety of earthwork and road assessment scenarios. The paper aims to provide a state of the art reference document for LWD users, consultants, material specifiers, contractors and clients. It reviews data from road foundations (subgrades, granular capping and sub-base) and fully constructed in-service (thinly surfaced) roads, to demonstrate the flexibility of the LWD but also show that its determination of 'stiffness modulus' may differ from that of the conventional Falling Weight Deflectometer (FWD) to a varying extent. A series of laboratory investigations are presented that demonstrate the sensitivity to uniformity of plate/surface contact, and also limitations in the interpretation of peak displacement from the device. In conclusion, a good understanding of the device workings and careful specification of the test variables are required to both analyse the data correctly and permit comparison between data sets. The device is concluded to be a useful and versatile field quality control and pavement investigation tool, if an understanding of the device issues is considered by data users. INTRODUCTIONThis paper reviews the use of portable falling weight deflectometers (PFWDS) and the behaviour of the Lightweight Deflectometer (LWD) in detail. In this paper the term PFWD means any portable device for measuring a stiffness of material insitu, and the term LWD refers to the specific type of PFWD commonly known in Europe as the Prima, manufactured by Carl Bro (previously manufactured by Keros). The LWD is increasingly used for investigations of road construction materials and quality control. A background to the LWD development, a review of field data with a focus on correlation with the Falling Weight Deflectometer (FWD), and then specific laboratory investigations are presented. This paper is intended for reference by LWD users, consultants, material specifiers, contractors and clients.

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Intelligent Soil Compaction Technology: Results and a Roadmap Toward Widespread Use

Cited by 17 publications

References 1 publication

A Comparison of Simultaneously Recorded Machine Drive Power and Compactometer Measurements

A Comparison of Simultaneously Recorded Machine Drive Power and Compactometer Measurements

高心墙堆石坝碾压质量实时监控技术及应用

Review of Lightweight Deflectometer for Routine in Situ Assessment of Pavement Material Stiffness

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