Investigation into Relationships Between Cerchar Hardness Index and Some Mechanical Properties of Coal Measure Rocks
| Autor: | Olgay Yaralı |
|---|---|
| Přispěvatelé: | Zonguldak Bülent Ecevit Üniversitesi |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
0211 other engineering and technologies Cerchar hardness index Soil Science Shore scleroscope hardness 02 engineering and technology 010502 geochemistry & geophysics 01 natural sciences Indentation hardness Schmidt rebound hardness Coal measure rocks Meyer hardness test Architecture Ultimate tensile strength Geotechnical engineering Coal Anisotropy 021101 geological & geomatics engineering 0105 earth and related environmental sciences business.industry Geology Geotechnical Engineering and Engineering Geology Hardness Compressive strength Point load strength Vickers hardness test Uniaxial compressive strength business |
| Popis: | This paper examines the relationships between Cerchar hardness index (CHI) and some mechanical properties of coal measure rocks in Zonguldak Hard Coal Basin. Some index properties (Cerchar hardness index, Shore scleroscope hardness, in situ Schmidt rebound hardness and point load strength) and strength (uniaxial compressive strength and Brazilian tensile strength) properties of 29 sedimentary rock samples are determined. Then, relationships between (CHI) and strength as well as and some other index values are evaluated using statistical methods. Linear relationships are found between CHI and uniaxial compressive strength, Schmidt rebound hardness. Power relationships are determined between CHI and Shore scleroscope hardness, diametral point load strength, point load strength anisotropy index. Besides, CHI tests are performed by means of bits having tip angles of 99° and 125° and excellent linear relationships are identified between them. © 2017, Springer International Publishing Switzerland. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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