BİR MADEN SAHASINDA KAYA KÜTLESİ HİDROLİK İLETKENLİĞİNİN ÇOKLU REGRESYON YÖNTEMİ İLE KESTİRİMİ

Year 2018, , 808 - 816, 20.07.2018

İbrahim Ferid Öge

https://doi.org/10.28948/ngumuh.445242

Abstract

Yeraltı
suyunun madencilik faaliyetlerinden kazı faaliyetlerinden kazı ve tahkimat
sistemlerine doğrudan etkisi bulunmaktadır. Bu nedenle kaya kütle
permeabilitesinin araştırılması ve incelenmesine ihtiyaç duyulmaktadır. Lugeon
testi bir kaya kütlesinin permeabilitesinin ölçülmesinde kullanılan yerinde
deneylerden biridir. Süreksizliklerin konumu, sıklığı, açıklığı, yüzey
kalitesi, dolgu varlığı ve tipi kaya kütlesinin geçirgenliğinde önemli rol
oynar. Yaygın olarak kullanılan RQD (Kaya Kalite Göstergesi) ve Dc (RMR
sisteminin süreksizlik durum puanı) kaya kütlesinin permeabilitesinin
kestiriminde kullanılmak üzere seçilmiştir. Buna ek olarak süreksizliklerin
birbirine olan temasını doğrudan etkileyen arazi gerilmesi, derinlik dikkate
alınarak kestirim çalışmalarına dâhil edilmiştir. Kaya kütlesinin
permeabilitesi karmaşık bir mekanizmaya sahip olduğu öngörülerek, çoklu
regresyon yöntemi kaya kütle parametreleri ile Lugeon değerinin
ilişkilendirilmesinde kullanılmıştır. Sunulan eşitlikler benzer saha
koşullarında kullanılabilse de arazi testlerinin temel alınması gerektiği
hatırlanmalıdır.

Keywords

Kaya kütlesi permeabilitesi, kaya kütlesi, yeraltı suyu, Lugeon

ESTIMATION OF ROCK MASS PERMEABILITY IN A MINE SITE BY USING MULTIPLE REGRESSION METHOD

Abstract

Groundwater
has a direct impact on the excavation operations and support systems of
underground mining activities. Therefore, it is necessary to investigate the
rock mass permeability. Lugeon test is one of the in-situ tests being used for
measurement of the rock mass permeability. Discontinuity orientation, spacing,
aperture, surface quality, the presence and type of filling play important role
in the permeability of the rock mass. Commonly used parameters, RQD (Rock
Quality Designation) and Dc (Discontinuity Condition Rating of the RMR) were
selected for prediction of the rock mass permeability. Additionally, the field
stress directly influencing the interlocking of the discontinuities is taken
into account in terms of depth and included in the predictions. Foreseeing that
the rock mass permeability has a complex mechanism, multiple regression methods
were employed in order to relate rock mass parameters with Lugeon value.
Although the presented equations can be used in similar field conditions, it
must be recalled that the in-situ testing remains to establish a basis for the investigations.

Keywords

Rock mass permeability, rock mass, groundwater, Lugeon

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