Granüler Yol Malzemelerine Uygulanan DCP, CBR ve MR Test Sonuçlarının Karşılaştırılması

Uz, Volkan

doi:10.5505/2015geoteknik.s019

Cited by 1 publication

(7 citation statements)

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“…It is driven into the soil using a 17.6 lb (8 kg) hammer dropped from 22.6 in (575 mm). Soil shear strength is reported as the Dynamic Cone Penetration Index (DPI) in mm per blow at selected intervals [1][2][3]7,[9][10][11][12][13][21][22][23][24]26,28,30,[33][34][35][36][37][38][39][40][41][42][43][44][45][46]. Equation 1 determines the drive rod movement based on hammer blows (Fig.…”

Section: Dcp Methods and Apparatusmentioning

confidence: 99%

“…It measures factors like bearing capacity, stiffness, cohesion, and more. It also evaluates the compaction of pavement materials [2,6,7,9,[11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. DCPT ensures quality control and is widely employed for site investigation in preliminary design.…”

Section: Dynamic Cone Penetrometermentioning

confidence: 99%

“…Developed by the California Division of Highways in 1929, it categorizes soils for use in highway construction. This method also assesses material stiffness and resistance to permanent deformation [11,30,34,39,41,42,46,47,51,52].…”

Section: California Bearing Ratiomentioning

confidence: 99%

“…CBR values are calculated for soaked compacted specimens at penetration depths of 2.54 mm and 5.08 mm with reference loads of 6.9 MPa and 10.3 MPa [11,28,34], respectively. Testing is done on a CBR machine at 1.25 mm/min penetration rate, and division readings at required penetrations are recorded.…”

Section: Penetrationmentioning

confidence: 99%

“…With the transition from empirical to mechanisticempirical pavement design methods, there's a need to shift QC/QA procedures from unit weight-based to stiffness/strength-based criteria. Unit weightbased criteria lack sufficient information about the engineering properties of granular layers, leading to a disconnect between design and quality control [11].…”

Section: Introductionmentioning

confidence: 99%

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The Role of Dynamic Cone Penetrometer Testing in Assessing Pavement Subgrade Strength: A Literature Review

Garcia

2024

GEOMATE

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In-situ tests for predicting geotechnical parameters related to shear strength, such as California Bearing Ratio (CBR), typically require drilling boreholes and manual cone driving, which can be timeconsuming, expensive, and labor-intensive. The Dynamic Cone Penetrometer Test (DCPT) has emerged as a simpler, faster, and less expensive alternative for predicting CBR and other geotechnical parameters. This systematic review uses Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to examine relevant literature on DCP testing for accurately predicting CBR and other geotechnical parameters. After trimming 111 relevant studies to 55, the review discusses various research questions, including the correlation between DCP and CBR, factors such as water content and seasonal variations, and recent advances in DCP testing. The review emphasizes the importance of considering unsaturated soil behavior, such as soil suction, in pavement subgrade design to ensure the longevity and quality of the pavement. The findings provide compelling evidence for the utilization of DCP testing as an essential tool for predicting geotechnical parameters and designing high-performance pavements. By demonstrating the DCPT's remarkable convenience, reliability, and cost-effectiveness in CBR and geotechnical parameter prediction, this study paves the way for significant advancements in pavement design efficiency and economic viability.

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