Point Load Index Applicability to Predicting Rocks' Uniaxial Compressive and Tensile Strengths: Available Data Analysis and FEM-Based Validity Check
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Tarih
2024
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In projects that are in contact with rocks, it is very important to determine the strength parameters of the rock correctly. While there are several approaches to this, the experimental approach is the most recommended. The strength of the rocks is determined by laboratory experiments. However, these experiments can sometimes be complicated, time-consuming, expensive, or samples with the required size cannot be prepared. In such cases, index, simpler, and cheaper test methods can be used to estimate the strength values. Many studies have used point load index (PLI) to predict uniaxial compressive strength (UCS). This study investigated whether PLI predicts UCS or Brazilian tensile strength (BTS) better. A data set was created from the studies with UCS, BTS, and PLI values, which were determined using the same rock samples in the literature. The finite element approach was used to analyze the stress distributions on the samples to explain better the results obtained. As a result, it was seen that PLI can be used reliably in magmatic and metamorphic rocks to predict both UCS and BTS. It was determined that PLI predicted BTS better and that the stress distributions formed on the sample at the time of the experiment were very similar to those of the BTS test.
Açıklama
Anahtar Kelimeler
point load index, uniaxial compressive strength, Brazilian tensile strength, numerical analysis
Kaynak
Strength of Materials
WoS Q Değeri
N/A
Scopus Q Değeri
Q4
Cilt
56
Sayı
5
