Correlations between crucial rock properties and drilling rate index for hard rock tunnels

S Yagiz; O Yarali

Correlations between crucial rock properties and drilling rate index for hard rock tunnels

S Yagiz
, O Yarali

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, rock properties including uniaxial compressive strength (UCS), Brazilian tensile strength (BTS) and density (D) of rock is examined to estimate the drilling rate index (DRI) for hard rock tunneling. For this aim, dataset having 63 data-points is established and then several linear and non-linear simple and multiple regression models have been conducted to develop the most accurate model to estimate the DRI. As a result of simple regressions, it is found that the UCS, BTS and D have an effect on DRI with correlation coefficient (r) of 0.55; 0.61; 0.28 respectively. It is obvious that those results are not good enough to estimate the DRI as a function of single parameter; however, applying multiple regression analysis, drilling rate index is predicted as a function of UCS, BTS and D of rocks with r of 0.75.

Original language	English
Title of host publication	World Tunnelling Congress, WTC2020 Malaysia
Publisher	International Tunnelling and Underground Space Association
Number of pages	5
Publication status	Published - May 2020
Event	World Tunnelling Congress WTC2020 - Malaysia, Kuala Lumpur, Malaysia Duration: May 15 2020 → May 22 2020 http://www.wtc2020.my/

Conference

Conference	World Tunnelling Congress WTC2020
Abbreviated title	WTC2020
Country/Territory	Malaysia
City	Kuala Lumpur
Period	5/15/20 → 5/22/20
Internet address	http://www.wtc2020.my/

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 4 Quality Education
SDG 7 Affordable and Clean Energy
SDG 9 Industry, Innovation, and Infrastructure
SDG 11 Sustainable Cities and Communities
SDG 12 Responsible Consumption and Production
SDG 17 Partnerships for the Goals

Cite this

@inproceedings{a338cb7b37cd4cf2aa60e649bef9d49e,

title = "Correlations between crucial rock properties and drilling rate index for hard rock tunnels",

abstract = "In this paper, rock properties including uniaxial compressive strength (UCS), Brazilian tensile strength (BTS) and density (D) of rock is examined to estimate the drilling rate index (DRI) for hard rock tunneling. For this aim, dataset having 63 data-points is established and then several linear and non-linear simple and multiple regression models have been conducted to develop the most accurate model to estimate the DRI. As a result of simple regressions, it is found that the UCS, BTS and D have an effect on DRI with correlation coefficient (r) of 0.55; 0.61; 0.28 respectively. It is obvious that those results are not good enough to estimate the DRI as a function of single parameter; however, applying multiple regression analysis, drilling rate index is predicted as a function of UCS, BTS and D of rocks with r of 0.75.",

author = "S Yagiz and O Yarali",

year = "2020",

month = may,

language = "English",

booktitle = "World Tunnelling Congress, WTC2020 Malaysia",

publisher = "International Tunnelling and Underground Space Association",

note = "World Tunnelling Congress WTC2020, WTC2020 ; Conference date: 15-05-2020 Through 22-05-2020",

url = "http://www.wtc2020.my/",

}

TY - GEN

T1 - Correlations between crucial rock properties and drilling rate index for hard rock tunnels

AU - Yagiz, S

AU - Yarali, O

PY - 2020/5

Y1 - 2020/5

N2 - In this paper, rock properties including uniaxial compressive strength (UCS), Brazilian tensile strength (BTS) and density (D) of rock is examined to estimate the drilling rate index (DRI) for hard rock tunneling. For this aim, dataset having 63 data-points is established and then several linear and non-linear simple and multiple regression models have been conducted to develop the most accurate model to estimate the DRI. As a result of simple regressions, it is found that the UCS, BTS and D have an effect on DRI with correlation coefficient (r) of 0.55; 0.61; 0.28 respectively. It is obvious that those results are not good enough to estimate the DRI as a function of single parameter; however, applying multiple regression analysis, drilling rate index is predicted as a function of UCS, BTS and D of rocks with r of 0.75.

AB - In this paper, rock properties including uniaxial compressive strength (UCS), Brazilian tensile strength (BTS) and density (D) of rock is examined to estimate the drilling rate index (DRI) for hard rock tunneling. For this aim, dataset having 63 data-points is established and then several linear and non-linear simple and multiple regression models have been conducted to develop the most accurate model to estimate the DRI. As a result of simple regressions, it is found that the UCS, BTS and D have an effect on DRI with correlation coefficient (r) of 0.55; 0.61; 0.28 respectively. It is obvious that those results are not good enough to estimate the DRI as a function of single parameter; however, applying multiple regression analysis, drilling rate index is predicted as a function of UCS, BTS and D of rocks with r of 0.75.

M3 - Conference contribution

BT - World Tunnelling Congress, WTC2020 Malaysia

PB - International Tunnelling and Underground Space Association

T2 - World Tunnelling Congress WTC2020

Y2 - 15 May 2020 through 22 May 2020

ER -

Correlations between crucial rock properties and drilling rate index for hard rock tunnels

Abstract

Conference

UN SDGs

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