Аuthorization:
Login:
Password:
  















Detailed information

 

FIELD EXPERIENCE OF HIGHWALL MINING SYSTEM IN ELEGESTA COAL FIELD, REPUBLIC OF TUVA



Use of highwall mining systems is discussed. Some problems connected with more comprehensive study into geology of coal seams and enclosing rock mass in Elegesta coal field are solved. The most critical objectives are confirmation of coal seam thickness and occurrence condition, tectonic structure, physical and mechanical properties of exposed rocks in roof and floor, width of rib pillars, water inflow rate in underground excavations, limits and quality of power-generating and coking coal, ignitability and explosion hazard of coal dust. Useful quality and process properties of produced coal are analyzed, and potential product delivery to consumers is discusses. Basic parameters of mining with highwall systems are determined. From calculations, the minimum parameters for pillars in highwalls to 180 m long (average mining depth is to 60 m below ground surface) are: rib pillar width is 3.1 m; barrier pillar width is 5.8 m; spacing of barrier pillars is 70.0 m. On Ulug seams, the highwall miner cuts 14 rooms and produces 115.65 thou t of gas-fat and fat coal. On seam 6.11, the highwall miner cuts 10 rooms and produces 47.5 thou t of gas-fat and fat coal. The process properties of coal in their bulk treatment by operating preparation plants are determined, and their useful quality for chemical recovery industry are refined.


For citation: Demchenko A. V., Derevyashkin I. V. Field experience of highwall mining system in Elegesta coal field, Republic of Tuva. MIAB. Mining Inf. Anal. Bull. 2019;(6):79-87. [In Russ]. DOI: 10.25018/0236-1493-2019-06-0-79-87.




: 6
2019
ISBN: 0236-1493
УДК: 622.27.326
DOI: 10.25018/0236-1493-2019-06-0-79-87
Authors: Demchenko A. V., Derevyashkin I. V.

Authors' Information:
A.V. Demchenko, Cand. Sci. (Eng.), Assistant Professor, e-mail: demchenko_av@mail.ru,
I.V. Derevyashkin, Dr. Sci. (Eng.), Professor, e-mail: robotron-04@mail.ru,
Moscow polytechnic university, 107023, Moscow, Russia.

Corresponding author: A.V. Demchenko, e-mail: demchenko_av@mail.ru.




Key words:
Highwall mining system, coal, Elegesta coal field, coal seam, extraction block, barrier pillar, rib pillar.

References:

1. Netsvetaev A. G., Grigoryan A. A., Pruzhina D. I.
Development of technology of uninhabited coal mining with the use of SMH
complexes. 
Gornaya promyshlennost'. 2015, no 4 (122), pp. 87.


2. Netsvetaev A. G., Grigoryan A. A., Pruzhina D. I. Equipment
and technology for uninhabited coal mining from open pit mining. Ugol'.
2015, no 10 (1075), pp. 36—40.


3. Dixit S., Manoj P. Highwall Mining in
India. Mine planning and equipment selection
. Springer International
Publishing Switzerland, 2014, pp. 175—187.


4. Shen B., Duncan Fama M. E. Review of highwall
mining experience in Australia and a case study. ISRM International Symposium,
Melbourne; Australia, 2000.


5. Matsui K., Sasaoka T., Shimada H., Ueda J. T.,
Kramadibrata J. S., Sulistianto B. Highwall mining systems at surface coal
mines in Indonesia. Coal International, 2008, No. 256 (3), pp.
28—31.


6. Chandar K. R., Kumar B. G. Effect of width of
gallery of highwall mining on stability of highwall. A numerical modelling
approach. International Journal of mining and mineral engineering
2014, No. 5 (3), pp. 212—228.


7. Shen B. Highwall mining stability. Project
of mine disaster prevention and control
, 2014, 
No. 17, pp. 25—37.


8. Sasaoka T., Karian T., Hamanaka A., Shimada H.,
Matsui K. Application of highwall mining 
system in weak geological contidion. International
journal of coal science and technology
, 2016, No. 3 (1), pp. 311—321.


9. Netsvetaev A. G., Grigoryan A. A., Pruzhina D. I.
The estimated and the actual parameters of 
the technology SMH for testing Kirgizki layer 63 on
the cut «Kuprinsky». 
Gornaya promyshlennost'2014, no 5 (117), pp. 50. [In Russ].


10. Netsvetaev A. G., Grigoryan A. A., Pruzhina D. I.
The algorithm of calculation of geome-
chanical parameters, ensuring the safety of unmanned
mining technology coal using SMH. 
Ugol'2015, no 1 (1066), pp. 25—29. [In Russ].


11. Rekomendatsii po obespecheniyu
geomekhanicheskoi bezopasnosti pri razrabotke
 
mestorozhdenii poleznykh
iskopaemykh kompleksom glubokoi razrabotki plastov (KGRP) [Recom-
mendations to ensure the geomechanical safety during
the highwall mining (SMH)], Kemerovo, 
UF VNIMI, 2005, 29 p.


12. Tipovye tekhnologicheskie skhemy otrabotki
ugol'nykh plastov s primeneniem KGRP
 
(SMH), utverzhdennymi
Kuznetskim upravleniem Rostekhnadzora RF [Typical technological 
schemes of coal seam mining with the use of SMH,
approved by the Kuznetsk office of Ros
tekhnadzor of the Russian Federation], Kemerovo:
NTTs-NII OGR, 2004, 27 p.


13.Grigoryan A. A. The theoretical basis of the technology
parameters a deserted coal mining 
and industrial testing of the coal plant. Ugol'.
2014, no 9 (1062), pp. 26—29. [In Russ].


14. Grigoryan A. A. Application of the highwall mining
formed in the marginal wall of the quarry 
in terms of the Kuznetsk coal basin. Gornyy
informatsionno-analiticheskiy byulleten’
. 2014, no 8, pp. 40—44. [In Russ].


Back
Site map