QUANTITATIVE EVALUATION of the FACTORS AFFECTING the SCHMİDT REBOUND NUMBER

Kadir Karaman

Makale detayları

QUANTITATIVE EVALUATION of the FACTORS AFFECTING the SCHMİDT REBOUND NUMBER

Yazarlar:

Kadir Karaman

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

Yer Bilimleri ve Jeoloji Mühendisliği (Diğer)

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 2, pp.708-718

Belge Tipi:

Makale

Yayın Tarihi:

6/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001292006

pISSN:

1308-6693

Anahtar kelimeler:

Özet:

 The Schmidt hammer provides a quick and inexpensive measure of surface hardness that is commonly used for predicting the mechanical properties of rock material. Surface roughness, water content of the test sample, weathering, Schmidt hammer type, the testing methods and influence of grain size are important parameters affecting the Schmidt hammer rebound number. The aim of this study is to quantitative examine the factors affecting Schmidt hammer rebound number. Within the framework of the purposes, a large number of Schmidt rebound values was derived from the current study and the previous studies and affecting factors of Schmidt hammer rebound number values were analyzed numerically. The effect of different mineral grain sizes on the Schmidt hammer rebound number was also investigated. The highest level of decrease in Schmidt rebound values was determined between fresh and weathered samples with a level of 54 . The difference between the Schmidt hammer rebound values measured in dry and saturated samples reached 34. The difference rebound values were observed as 19  and 33  for different evaluation methods and different test surfaces, respectively. Rebound values derived from N and L type Schmidt hammer was calculated as 24 . Although experience is required to perform the Schmidt hammer test and interpret the results, it is clear that the Schmidt hammer will provide quick, inexpensive and simple solutions for the preliminary evaluation of geotechnical projects.

 The Schmidt hammer provides a quick and inexpensive measure of surface hardness that is commonly used for predicting the mechanical properties of rock material. Surface roughness, water content of the test sample, weathering, Schmidt hammer type, the testing methods and influence of grain size are important parameters affecting the Schmidt hammer rebound number. The aim of this study is to quantitative examine the factors affecting Schmidt hammer rebound number. Within the framework of the purposes, a large number of Schmidt rebound values was derived from the current study and the previous studies and affecting factors of Schmidt hammer rebound number values were analyzed numerically. The effect of different mineral grain sizes on the Schmidt hammer rebound number was also investigated. The highest level of decrease in Schmidt rebound values was determined between fresh and weathered samples with a level of 54 . The difference between the Schmidt hammer rebound values measured in dry and saturated samples reached 34. The difference rebound values were observed as 19  and 33  for different evaluation methods and different test surfaces, respectively. Rebound values derived from N and L type Schmidt hammer was calculated as 24 . Although experience is required to perform the Schmidt hammer test and interpret the results, it is clear that the Schmidt hammer will provide quick, inexpensive and simple solutions for the preliminary evaluation of geotechnical projects.

 The Schmidt hammer provides a quick and inexpensive measure of surface hardness that is commonly used for predicting the mechanical properties of rock material. Surface roughness, water content of the test sample, weathering, Schmidt hammer type, the testing methods and influence of grain size are important parameters affecting the Schmidt hammer rebound number. The aim of this study is to quantitative examine the factors affecting Schmidt hammer rebound number. Within the framework of the purposes, a large number of Schmidt rebound values was derived from the current study and the previous studies and affecting factors of Schmidt hammer rebound number values were analyzed numerically. The effect of different mineral grain sizes on the Schmidt hammer rebound number was also investigated. The highest level of decrease in Schmidt rebound values was determined between fresh and weathered samples with a level of 54 . The difference between the Schmidt hammer rebound values measured in dry and saturated samples reached 34. The difference rebound values were observed as 19  and 33  for different evaluation methods and different test surfaces, respectively. Rebound values derived from N and L type Schmidt hammer was calculated as 24 . Although experience is required to perform the Schmidt hammer test and interpret the results, it is clear that the Schmidt hammer will provide quick, inexpensive and simple solutions for the preliminary evaluation of geotechnical projects.

 Yüzey sertliğinin pratik ve ucuz bir şekilde ölçülmesini sağlayan Schmidt çekici, kaya malzemelerinin mekanik özelliklerinin tahmini için yaygın olarak kullanılmaktadır. Yüzey pürüzlülüğü, test örneğinin su içeriği, ayrışma, Schmidt çekici tipi, test yöntemleri ve tane boyu etkisi Schmidt çekici geri tepme sayısını etkileyen önemli parametrelerdir. Bu çalışmanın amacı, Schmidt çekici geri tepme sayısını etkileyen faktörleri sayısal olarak incelemektir. Bu amaca yönelik olarak, bu çalışmadan ve önceki çalışmalardan çok sayıda Schmidt çekici geri tepme sayısı değerleri elde edilmiş ve Schmidt değerlerini etkileyen faktörler nicel olarak analiz edilmiştir. Farklı mineral tane boyutlarının Schmidt geri tepme sayısına etkisi de irdelenmiştir. Schmidt çekici geri tepme sayısı değerleri için en yüksek düşüş 54 ile taze ve bozunmuş örnekler arasında tespit edilmiştir. Kuru ve doygun örneklerde ölçülen geri tepme sayısı değerleri arasındaki fark  34e ulaşmıştır. Geri tepme sayısı değerleri arasındaki farklar, farklı değerlendirme yöntemleri ve çeşitli test yüzeyleri için sırasıyla  19 ve 33 olarak gözlenmiştir. N ve L tipi Schmidt çekicinden elde edilen geri tepme sayısı değerleri arasındaki fark ise 24 olarak hesaplanmıştır. Schmidt çekici testinin yapılması ve sonuçların yorumlanması için bir deneyim gerekmesine karşın, Schmidt çekicinin jeoteknik projelerin ön değerlendirmesinde hızlı, ucuz ve basit çözümler sağlayacağı açıktır.

Makale detayları

QUANTITATIVE EVALUATION of the FACTORS AFFECTING the SCHMİDT REBOUND NUMBER

Yazarlar:

Kadir Karaman

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

Yer Bilimleri ve Jeoloji Mühendisliği (Diğer)

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 2, pp.708-718

Belge Tipi:

Makale

Yayın Tarihi:

6/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001292006

pISSN:

1308-6693

Schmidt Hammer

Hammer Type

Roughness

Surface PropertiesSchmidt Çekici

Çekiç Tipi

Pürüzlülük

Yüzey Özellikleri

Sayı

Makale detayları

Yazarlar: Kadir Karaman

Yayıncı: Süleyman Demirel University

Ana Başlıklar: Yer Bilimleri ve Jeoloji Mühendisliği (Diğer)

Dergi: Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 2, pp.708-718

Belge Tipi: Makale

Yayın Tarihi: 6/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001292006

pISSN: 1308-6693

Sayı

Yazarlar:

Kadir Karaman

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

Yer Bilimleri ve Jeoloji Mühendisliği (Diğer)

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 2, pp.708-718

Belge Tipi:

Makale

Yayın Tarihi:

6/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001292006

pISSN:

1308-6693