Veiko Karu Estonia: Mi.ttu.ee

Veiko Karu Estonia

mi.ttu.ee

Tallinn University of Technology Mining Department 2nd year PhD student Topic of research: Mine modelling, analyse and digital planning

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Introduction: Estonian mining

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Backround of my research • There are problems in composing development plans for minerals extracting industry both in level of local authorities and the country. • The reason is related to missing suitable methodology for all parties, criteria and skills for using natural resources. • Economy needs mineral resources, but mining affects the environment, earth crust and landscape.

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Hü l k a ri

L õ u na k ü la

Hü l k ari mad al Ve s k i k a ri

V

i i m s i

p s

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J õ

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s u u

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Miiduranna Viimsi

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a

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VÄO

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Kostivere

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ü l e m i n e tl t KRIST II NE

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Kod

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im nn Mä

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äe

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rk Ha

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na

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pkr

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sti Sau N

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mi.ttu.ee

L õ il a smä e jv

ra b a

Pa tik

Jägala a

P at i k a

l na ka

pkr

r ja Ha

Ih u vere

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saküla pkr

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k ap

ita Pir

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imäe Jälg

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än

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Kur

kr ap

Pä

äs

L a a g ri

Jüri Kärneri oja S a ire kr

is mõ Vana

A lliku

j küla Pääs

M ä d a j ä rv

Limestone quarry near town

mi.ttu.ee

Oil Shale are mined today Kunda Kunda



Vanamõisa Vanamõisa Pada Pada

Ubja Ubja HaljalaKohala Haljala Kohala



Kiviõli Kiviõli Põhja-Kiviõli Põhja-Kiviõli



Püssi Uljaste UljastePüssi

Rakvere Rakvere

Rak Rakvere vere

NarvaNarvaJõesuu Jõesuu

Gulf Gulf of of Narva Narva



Kiviõli Kiviõli

Sonda Sonda



KohtlaKohtlaNõmme Nõmme

Aidu Aidu Uus Uus Kiviõli Kiviõli

Kabala Kabala







KohtlaKohtlaJärve Järve

Kohtla Kohtla

Kuk Kukruse ruse Käva Käva Jõhvi Jõhvi nr nr 22 nr nr 44 Tammik Tammikuu

Sompa Sompa Viru Viru



Ahtme Ahtme

Sillamäe Sillamäe

Eesti Eesti Power Power Plant Plant

Ahtme Ahtme Power Power Plant Plant



Sirgala-Viivik Sirgala-Viivikonna onna

Narva Narva Mezhduretshije Mezhduretshije Usnova Usnova

Ojamaa Ojamaa

Tudu Tudu



Estonia Estonia

Oandu Oandu Flooded Flooded mine mine

Seli Seli

11

Leningradsk Leningradskaja aja

Puhatu Puhatu

Kirovi Kirovi

Underground Underground mine mine Surface Surface mined mined area area



Narva Narva

Permisk Permisküla üla

Slantsõ Slantsõ

Nr Nr 33

Kirovsk Kirovskoje oje

Peipsi Peipsi

New New mine mine Permissions Permissions are are not not resoluted resoluted 6

Reservation Reservation

© Enno Reinsalu, 2007

Lake Lake Peipsi Peipsi



Power Power plant plant



Closed Closed power power plant plant

 

Oil Oil plant plant Closed Closed plant plant

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Blasting in oil shale mine

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Oil shale underground mining • Room and pillar mining

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My research • There are several mining software programs • Freeware (different viewers) • Independent (GEMCOM Surpac and Minex, MapInfo, AutoCAD, ESRI etc.) • Besides that, it is possible to use online software programs (EduMine etc.).

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Different software packages

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Purpose • Problems – so many different software programs – Each institution use different software systems – Developing co-operation, there are difficulties in connection and transition of data

• The main task for modelling is to find suitable criteria and demonstration ways.

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Data for modelling • Fieldworks • Airborne photo • Surface surveying

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Today’s fieldwork gives data for future mining technology • Data for mining and geotechnological research and teaching comes mainly from field measurements and laboratory test and modelling. • Rock classification and compressive strength are evaluated by three main methods – pressing the prepared samples – with PLT (point load test) – with rock classification hammer.

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Pressing the prepared samples Preparing and pressing rock sample with uniaxial press

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Point Load Test • The samples are tested either in natural or in saturated conditions. • Three test methods : – Compression along a diameter – Axial compression – Compression on irregular pieces.

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Measuring with Rock classification hammer DATA Sample location Feature Coordinate m Coordinate, m Height, m Date Time Rock SPECIAL DATA Impact direction Horizontal position Impact number Average strength Calculations Recalculated strength Coefficents Density, kN/m3 Coefficent Result Compressive strength, MPa

Väo limestone quarry Mark Value x 551708 y 6588218 z 30 1.08.2007 Before lunch Building limestone Formula Parallel α n R

0 25 24.4

Rkorr a b c d z ln s

21 0.0008 -0.0209 -3.15 26 0.0526 3.44

s

31

Rkorr = R + a*R2 + b*R + c

z = 0.00195 d + 0.0019 ln s = 2.32 + z Rkorr s = exp (ln s)

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Seaving in open cast Collecting samples for saving from the working face of surface miner

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Airborne photo

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Surface surveying

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Digital plannig • Colleting all the information (fieldwork, airbourne photo, surface surveying) • Choose a software • Importing data • Modelling

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Digital planning results

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Thank You! Veiko Karu TUT Mining Department [email protected] http://mi.ttu.ee Estonia mi.ttu.ee