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Human factors in the development of the hydraulic system of the powered roof support

Abstract

The growing demand for mineral resources, including hard coal, requires the continuous improvement and development of technologies to improve safety, productivity and performance. The implementation of automation and digitization in mines has been ongoing for several years. Machinery and equipment development and improvement is also ongoing. The authors discuss the development and improvement of powered roof support, which is a critical part of the longwall system. The powered roof support is responsible for the safety of equipment and people working in the longwall. It supports the face and immediate roof and moves the longwall system forward as the shearer removes the coal and the roof collapsing (goafing) behind the shields. The aim of this study was to examine the human factors involved in the development and improvement of the hydraulic support system of powered roof support. The research was carried out among employees in hard coal mines using mainly surveys. The research allowed the authors to examine and analyze the information provided by the miners concerning powered roof support in the era of Industry 4.0 (the Fourth Industrial Revolution). According to the research findings, miners expect improvement in the reliability of the powered roof support, and they want the key operating parameters, especially the required load capacity, to be monitored in real-time so adjustments and improvements can be made. The results of the research point out the needs and expectations of miners. Their opinions should determine the direction and any research gaps into powered roof support.

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Human factors in the development of the hydraulic system of the powered roof support

Author: Borska, Beata
Publisher: Technická univerzita Košice, Fakulta baníctva, ekológie, riadenia a geotechnológií
Year: 2023
DOI: 10.46544/AMS.v28i1.03
Source: https://dspace.vsb.cz/bitstreams/d949476e-5d34-4569-b93d-773ead7a6346/download
Ac a Mon anis ica Slo aca, Volume 28 (2023), 1; DOI: 10.46544/AMS. 28i1.03
Human Fac o s in he De elopmen o he Hyd aulic
Sys em o he Powe ed Roo Suppo
Bea a BORSKA1, Dawid SZURGACZ2,3, Jiří POKORNÝ4, Se gey ZHIRONKIN5,6* and
Olga ZHIRONKINA7
Au ho s' a ilia ions and add esses:
1 KWK Ruda Ruch Halemba, ul. Halembska 160,
41-717 Ruda Śląska, Poland
e-mail: bo [email protected]
2 Cen e o Hyd aulics DOH L d., ul. Kons y ucji
147, 41-906 By om, Poland
e-mail: dawidszu gacz@ p.pl
3 Polska G upa Gó nicza S.A., ul. Pows ańców
30, 40-039 Ka owice, Poland
4 Facul y o Sa e y Enginee ing, VSB—Technical
Uni e si y o Os a a, Lumí o a 13/630, 700 30
Os a a-Výško ice, Czech Republic
e-mail: ji i.poko ny@ sb.cz
5 Depa men o T ade and Ma ke ing, Sibe ian
Fede al Uni e si y, 79 S obodny a ., 660041
K asnoya sk, Russia
e-mail: szhi onkin@s u-k as. u
6 Depa men o Open Pi Mining, T.F. Go bache
Kuzbass S a e Technical Uni e si y, 28 Vesennya
s ., 650000 Keme o o, Russia
e-mail: zhi onkinsa@kuzs u. u
7 Ins i u e o Philology, Fo eign Languages and
Media Communica ions, Keme o o S a e
Uni e si y, 6 K asnaya S ., 650043 Keme o o,
Russia
e-mail: o-zhi onkina@mail. u
*Co espondence:
Se gey Zhi onkin, Depa men o Open Pi
Mining, T.F. Go bache Kuzbass S a e Technical
Uni e si y, 28 Vesennya s ., 650000 Keme o o,
Russia
e-mail: zhi onkinsa@kuzs u. u
How o ci e his a icle:
Bo ska, B., Szu gacz, D., Poko ný, J., Zhi onkin,
S. and Zhi onkina, O. (2023). Human Fac o s in
he De elopmen o he Hyd aulic Sys em o he
Powe ed Roo Suppo . Ac a Mon anis ica
Slo aca, Volume 28 (1), 27-37
DOI:
h ps://doi.o g/10.46544/AMS. 28i1.03
Abs ac
The g owing demand o mine al esou ces, including ha d coal,
equi es he con inuous imp o emen and de elopmen o
echnologies o imp o e sa e y, p oduc i i y and pe o mance. The
implemen a ion o au oma ion and digi iza ion in mines has been
ongoing o se e al yea s. Machine y and equipmen de elopmen
and imp o emen is also ongoing. The au ho s discuss he
de elopmen and imp o emen o powe ed oo suppo , which is a
c i ical pa o he longwall sys em. The powe ed oo suppo is
esponsible o he sa e y o equipmen and people wo king in he
longwall. I suppo s he ace and immedia e oo and mo es he
longwall sys em o wa d as he shea e emo es he coal and he oo
collapsing (goa ing) behind he shields. The aim o his s udy was o
examine he human ac o s in ol ed in he de elopmen and
imp o emen o he hyd aulic suppo sys em o powe ed oo
suppo . The esea ch was ca ied ou among employees in ha d coal
mines using mainly su eys. The esea ch allowed he au ho s o
examine and analyze he in o ma ion p o ided by he mine s
conce ning powe ed oo suppo in he e a o Indus y 4.0 ( he
Fou h Indus ial Re olu ion). Acco ding o he esea ch indings,
mine s expec imp o emen in he eliabili y o he powe ed oo
suppo , and hey wan he key ope a ing pa ame e s, especially he
equi ed load capaci y, o be moni o ed in eal- ime so adjus men s
and imp o emen s can be made. The esul s o he esea ch poin ou
he needs and expec a ions o mine s. Thei opinions should
de e mine he di ec ion and any esea ch gaps in o powe ed oo
suppo .
Keywo ds
su ey esea ch; wo k sa e y; human ac o ; unde g ound coal
mining; powe ed oo suppo , pe o mance imp o emen s
© 2023 by he au ho s. Submi ed o possible open access publica ion unde he e ms and condi ions
o he C ea i e Commons A ibu ion (CC BY) license (h p://c ea i ecommons.o g/licenses/by/4.0/).
Bea a BORSKA e al. / Ac a Mon anis ica Slo aca, Volume 28 (2023), Numbe 1, 27-37
28
In oduc ion
The global demand o mine al esou ces has been g owing s eadily o e ecen yea s. This is ela ed o
popula ion g ow h, indus y and echnology de elopmen s, global po e y educ ion, p og essi e u baniza ion and
inc easingly di e se echnical applica ions. The inc ease in demand o aw ma e ials gene a es new echnological,
economic and en i onmen al equi emen s and challenges (Wajs e al., 2021), especially conside ing he new
h us o sus ainabili y and g een mining. These help d i e he sea ch o inno a i e solu ions aimed a inc easing
he e iciency o p oduc ion p ocesses (Woźniak and Ha dygó a, 2020; Bajda and Ha dygó a, 2021; Gładysiewicz
e al., 2017; Baiul e al., 2020), educing ene gy consump ion (Kawalec e al., 2020; Bo nowski e al., 2021;
Bo kowski, 2020; Gó alczyk e al., 2020; Kawalec e al., 2018) and imp o ing sa e y (Zim oz e al., 2011; Zię ek
e al., 2020; Dlouhá e al., 2019; Poko ny e al., 2016; Poko ny e al., 2018; Adach-Pawelus and Pawelus, 2021),
as well as he econs uc ion o ecologically dis u bed sys ems (Dlouhá and Dubo sky, 2019; Dlouhá e al., 2021;
Dubo ský e al., 2021). I is necessa y o sea ch o new oppo uni ies o p ocess op imiza ion and au oma ion
(Pa yk e al., 2021; K ól and Kisielewski, 2014; Dlouhá and Hamříko á, 2018). Digi al echnologies, mo e
powe ul compu e s and mode n compu e so wa e a e used o his pu pose (Janus and K awczyk, 2021;
Do oszuk and K ól, 2019; Ba dziński e al., 2020; Dlouhá and Kozlo á, 2019; Hamříko á and Dlouhá, 2017)). An
impo an aspec in he op imiza ion o hese is he collec ion and analysis o da a (G zesiek e al., 2021; Wodecki
e al., 2020).
One o he s a egic aw ma e ials in he Polish economy is ha d coal. Despi e he ongoing ene gy
ans o ma ion, coal emains he coun y's p ima y sou ce o ene gy p oduc ion (Figu e 1). The e o e, coal is s ill
a key aw ma e ial o ensu ing Poland's ene gy secu i y, especially wi h inc easing elec ici y consump ion.
Howe e , he ex ac ion o his aw ma e ial is becoming inc easingly di icul and cos ly due o he inc easing
mining dep h and he mo e complex coal seams emaining (Ko wica e al., 2021).
Fig. 1. Elec ici y p oduc ion in Poland in 2022 (Dusiło, 2023)
In he mining indus y, adical changes ha e been obse ed o se e al yea s al eady, which a e pa o he
ou h indus ial e olu ion. Indus y 4.0 in eg a es people and digi ally con olled machines using wi eless
ne wo ks and in o ma ion echnologies. The doc ine o Indus y 4.0 in mining is mainly aimed a inc easing
e iciency (Świą ek e al., 2021; Rajwa e al., 2019; Ji e al., 2020), educing was e, imp o ing he sa e y o wo ke s
in mines (P os ański, 2017; U h e al., 2019; Szu gacz e al., 2022 a) and educing cos s (K auze e al., 2021).
Indus y 4.0 is no only abou echnology bu also abou new ways o wo king and in eg a ing hese
echnologies wi h he oles o he wo k o ce. Technology canno exis wi hou human in e en ion, analysis and
con ol. I se es people and is c ea ed and used by hem (Dlouhá and Hamříko á, 2019). The e o e, an impo an
elemen in he de elopmen o echnology is also he human ac o .
The aim o his s udy was o examine he human ac o in he u he de elopmen o he hyd aulic sys em o
he powe ed oo suppo . The powe ed oo suppo , he a mou ed con eyo bel , and he cu ing machine
( oadheade , shea e o plow) o m a mechanized longwall sys em. The mechanized sys ems a e he basic
equipmen o longwalls in he Polish ha d coal mining indus y. The pu pose o he suppo is main enance and
con ol o he oo , ensu ing he sa e y and p og ession o he en i e sys em along he longwall ace (Szu gacz e
al., 2022 b). The e o e, he imp o ed de elopmen and ope a ion o powe ed oo suppo a e necessa y o ensu e
e icien and sa e coal exploi a ion.
In o de o examine he human ac o in he de elopmen o powe ed oo suppo , esea ch su eys we e
ca ied ou . Su eys a e a commonly used me hod o examining opinions conce ning a speci ic opic. They a e
used in a ious b anches o he economy (S ephens e al., 2021; Smi niako a e al., 2021; Lu e al., 2022),
educa ion, de elopmen (Hamdan e al., 2021; Kjellg en e al., 2021), heal h (Dame y e al., 2021; Vale i e al.,
2021; Benede i e al., 2021; Va gas e al., 2021; Al Awaji e al., 2021) and social li e (Díaz-Jiménez e al., 2021;
U bana iciu e e al., 2021; A apo ic-Johansson e al., 2020; Tsui, 2021).
The esea ch conduc ed o his pape was ca ied ou in ha d coal mines in Poland. The esea ch co e ed
se e al aspec s. The au ho s e i ied he mine s' awa eness o he implemen a ion o new echnologies in mines
o he
coal
ligni e
na u al gas
enewable
ene gy sou ces
Bea a BORSKA e al. / Ac a Mon anis ica Slo aca, Volume 28 (2023), Numbe 1, 27-37
29
and hei knowledge o Indus y 4.0. They assessed exis ing echnological solu ions, wi h pa icula emphasis on
powe ed oo suppo . They also iden i ied he expec a ions and needs o mine s in he imp o ed de elopmen and
ope a ion o powe ed oo suppo .
Acco ding o he esea ch, he u u e de elopmen o powe ed oo suppo s is necessa y no only because o
he new equi emen s imposed on he mining indus y bu also because o he mine s' needs. The mine s expec ,
among o he s, imp o emen in he eliabili y o powe ed oo suppo s, con ol o he pa ame e s o hei wo k and
imp o emen o sa e y condi ions a hei wo kplaces.
Ma e ials and me hods
The human ac o in he ope a ion o a powe ed longwall suppo
P o iding employees wi h as high a le el o sa e y as possible is o pa icula impo ance in mining, which
because o he na u e o mining, can be haza dous. The sa e y o ope a ing a mechanized longwall lining is he
esul o impo an basic elemen s: he echnical condi ion o he mechanized housing, he c ew and he impac o
na u al haza ds. Thus, he in luence o he human ac o on he ope a ion o mechanized longwall sho ing can be
desc ibed by he ollowing (G enda and Tu zyńska, 2016):
𝐻𝐹=𝑅
100∙𝑇𝐶∙𝑁𝐻−∑𝑆 (1)
whe e:
HF – he ac o ha de e mines he human ac o in he ope a ion o a mechanized longwall lining,
R – he magni ude o he isk o a haza dous e en ela ed o he main enance o he longwall wo kings oo ,
TC – coe icien de e mining he echnical condi ion o mechanized longwall suppo ,
NH – coe icien de e mining he impac o na u al haza ds on he ope a ion o mechanized longwall suppo ,
∑S – coe icien de e mining he sys ems used o con ol he ope a ion o he powe ed oo suppo .
Su ey esea ch
In o de o examine he human ac o in he de elopmen o powe ed oo suppo , esea ch su eys we e
ca ied ou . The esea ch was o a diagnos ic na u e o lea n he opinions o employees in ha d coal mines ela ed
o he de elopmen o powe ed oo suppo in he e a o Indus y 4.0. The ool used in he esea ch was a ca e ully
c a ed ques ionnai e.
The guidelines adop ed du ing he p epa a ion o he ques ionnai e we e a clea and anspa en o m and he
sho ime needed o comple e i . The ques ionnai e consis ed o mul iple choice ques ions, o which he
esponden s eplied: YES, NO, and I DON'T KNOW. Ques ions and answe s we e w i en in abula o m o make
i easie o he esponden o comple e he su ey quickly. The ques ionnai e con ained a o al o 40 ques ions and
pe sonal da a ques ions.
The esea ch was ca ied ou on a g oup o 200 wo ke s employed in he 15 ha d coal mines belonging o he
Polish Mining G oup. People wo king on a daily basis on he longwall we e in i ed o ake pa in he su ey, as
hey could o e ele an opinions. The esponden s included mine s, mechanics and elec icians. The s udy
in ol ed bo h manual wo ke s as well as medium and highe supe ision wo ke s. The age o he esponden s
anged om 21 o 50 yea s, and hei wo k expe ience anged om 1 o 31 yea s. The di ision o he examined
g oup acco ding o he depa men in which hey wo k is shown in Figu e 2a, and Figu e 2b p esen s he di ision
o esponden s by posi ion.
Fig. 2. The b eakdown o he esponden g oup by (a) depa men hey wo k in; (b) posi ion
(a)
(b)
32%
36%
32%
Elec icians
Mechanics
Mine s
58%
22%
20%
Manual wo ke s
Medium supe ision
Highe supe ision
Bea a BORSKA e al. / Ac a Mon anis ica Slo aca, Volume 28 (2023), Numbe 1, 27-37
30
The main objec i e o he esea ch p ojec was o assess he cu en and u u e de elopmen o powe ed oo
suppo wi h pa icula emphasis on he hyd aulic sys em. The esea ch was conduc ed in ou s ages. The i s
s age conce ned he knowledge o Indus y 4.0 and he app oach o mine s o inno a i e solu ions. The second
s age was aimed a lea ning he opinions o mine wo ke s conce ning he ield o au oma ion and digi iza ion o
mining, as well as hei wo k sa e y. The esponden s' opinions on he cu en s a e o powe ed oo suppo s we e
examined in he hi d s age. In he ou h and inal s age, he es s ocused on he expec a ions o mine s in e ms
o u u e de elopmen o he echnology o powe ed oo suppo s.
Tables 1-4 p esen he su ey ques ions. The ques ions we e di ided in o 4 g oups. Each g oup con ains 10
ques ions om a gi en esea ch a ea. The ollowing ables (Table 1-4) p o ide examples o esponses.
Table 1. Ques ions on he de elopmen o echnology o unde g ound mining in he e a o Indus y 4.0
Ques ion
Numbe
Ques ion
Answe
1
Do you know wha Indus y 4.0 is?
No
2
A e you in e es ed in new solu ions in he ield o Indus y 4.0?
No
3
In you opinion, does he de elopmen o echnology ansla e in o a as e
a e o economic g ow h?
Yes
4
In you opinion, does he implemen a ion o inno a i e solu ions a ec he
success o he company?
Yes
5
In you opinion, can Indus y 4.0 solu ions educe p oduc ion cos s?
Yes
6
Do you hink ha companies need o in oduce inno a i e solu ions in o de
o be compe i i e in he in e na ional ma ke ?
Yes
7
Would you like you wo k o be pa ially eplaced by in elligen machines?
No
8
A e you conce ned ha au oma ion, oge he wi h Indus y 4.0, could lead o
job educ ions?
Yes
9
Do you no ice inno a i e solu ions in you daily wo k?
Yes
10
Do you us new echnologies?
Yes
Table 2. Ques ions conce ning inno a i e solu ions in mining
Ques ion
Numbe
Ques ion
Answe
1
Do you hink mines need inno a i e solu ions?
Yes
2
Do you suppo he in oduc ion o au oma ion and digi iza ion in
mines?
Yes
3
In you opinion, is he ex ac ion a he app op ia e le el?
Yes
4
In you opinion, does au oma ion a ec an inc ease in p oduc ion?
Yes
5
Do you hink ha he p og ess o he longwall should be inc eased?
I don' know
6
Do you hink i is possible o inc ease he numbe o daily wo k cycles
o he oadheade ?
I don' know
7
Do you hink ha he Mines should s i e o in ensi y p oduc ion and
he concen a ion o ex ac ion?
Yes
8
Do you eel sa e in you wo kplace?
Yes
9
Do you hink ha new echnologies imp o e wo k sa e y?
Yes
10
Do you hink ha new solu ions should be sough o imp o e wo k
sa e y?
Yes
Table 3. Ques ions conce ning cu en solu ions ega ding powe ed oo suppo s
Ques ion
Numbe
Ques ion
Answe
1
Do you hink ha he cu en de elopmen o powe ed oo suppo s is
a an app op ia e le el?
Yes
2
Do you hink ha he powe ed oo suppo sec ions mee hei
equi emen s?
Yes
3
Do you know wha he load capaci y o powe ed oo suppo is?
Yes
4
In you opinion, does he powe ed oo suppo wo k wi h he equi ed
load capaci y?
No
5
Do you hink ha he oo o he longwall is p ope ly suppo ed?
No
6
In you opinion, a e he cu en sec ion con ol sys ems eliable?
No
7
Do you no ice any p oblems when mo ing a sec ion o he powe ed oo
suppo ?
Yes
8
In you opinion, a e he e equen ailu es o he hyd aulic sys em o
he oo suppo , e.g. leakage o he p ops?
Yes
9
Do you belie e ha powe ed oo suppo s equi e imp o emen s and
inno a i e solu ions?
Yes
10
In you opinion, can eliable ope a ion o he powe ed oo suppo
a ec he inc ease in ex ac ion?
Yes
Table 4. Ques ions conce ning echnology de elopmen in he ield o powe ed oo suppo
Ques ion
Numbe
Ques ion
Answe
1
Do you hink ha e o s should be made o educe he ailu e a e o
Yes
Bea a BORSKA e al. / Ac a Mon anis ica Slo aca, Volume 28 (2023), Numbe 1, 27-37
31
he powe ed oo suppo s' sec ions?
2
Do you hink ha he eliabili y o he sec ion should be imp o ed?
Yes
3
In you opinion, should he ope a ing pa ame e s o he powe ed oo
suppo be moni o ed?
Yes
4
Do you hink i is necessa y o check ha he sec ions ob ain he ini ial
load capaci y?
Yes
5
In you opinion, is i possible o ully au oma e he eloca ion o
sec ions?
No
6
Do you hink ha he cu en sec ion con ol sys ems should be
imp o ed?
No
7
Do you expec suppo in he p ocess o expanding he sec ions and
ob aining he equi ed load capaci y?
Yes
8
In you opinion, does he ime o eloca ing he sec ions o he powe ed oo
suppo s a ec he amoun o ex ac ion?
Yes
9
Do you hink i is possible o speed up he ope a ion o eloca ing he
sec ions?
I don' know
10
In you opinion, should we look o new solu ions aimed a educing he
ime o eloca ing he sec ions?
I don' know
Resul s
Human ac o esea ch in de eloping he hyd aulic sys em o powe ed oo suppo was ca ied ou in ou
a eas, as men ioned ea lie .
S age 1 – echnology de elopmen o unde g ound mining in he e a o Indus y 4.0
The esul s o esea ch in he scope o he i s a ea conce ning he de elopmen o echnology o
unde g ound mining in he e a o Indus y 4.0 a e p esen ed in Figu e 3.
Fig. 3. Resul s o A ea Numbe 1 Su eys o Table 1
The conduc ed esea ch shows ha 36.5% o esponden s knew wha Indus y 4.0 is, and 22% o esponden s
we e in e es ed in he new solu ions possible using Indus y 4.0 echnologies. The concep o Indus y 4.0 was
known o bo h manual wo ke s as well as supe iso s, he as majo i y o whom ha e seconda y o uni e si y
educa ion. Rega dless o he knowledge o he concep o Indus y 4.0, almos all esponden s ag eed ha he
u he de elopmen o echnology should ansla e in o a as e a e o economic g ow h.
The as majo i y o he su eyed employees belie ed ha he implemen a ion o inno a i e solu ions also
a ec ed he success o he company. 84.5% o he esponden s answe ed ques ion 4 in he a i ma i e. Mo e han
hal o he esponden s ound i di icul o assess whe he Indus y 4.0 solu ions could educe p oduc ion cos s.
Only 22% o esponden s belie ed ha Indus y 4.0 could ha e an impac on educing p oduc ion cos s, and 1.5%
disag eed wi h his s a emen . On he o he hand, he ques ion o whe he inno a i e solu ions we e necessa y o
he company o be compe i i e in he in e na ional ma ke was posi i ely answe ed by as many as 90% o he
esponden s.
Mo e han hal o he employees (52%) would like hei wo k o be eplaced by in elligen machines. 38% o
he esponden s did no exp ess such willingness, and 10% had no opinion. A he same ime, as many as 40% o
esponden s we e a aid o job educ ions caused by au oma ion and Indus y 4.0. Only 30% o esponden s did
no ha e conce ns abou job educ ions, and he same amoun o esponden s did no ha e an opinion on his
subjec . Mo e han hal o he esponden s (56%) no iced inno a i e solu ions in hei daily wo k. Despi e conce ns
abou job cu s, he as majo i y, 91% o esponden s, decla ed ha ing us in new echnologies.
0
20
40
60
80
100
120
140
160
180
200
12345678910
Numbe o esponses
Ques ion numbe
I don '
know
No
Yes

Bea a BORSKA e al. / Ac a Mon anis ica Slo aca, Volume 28 (2023), Numbe 1, 27-37
32
S age 2 – inno a i e solu ions in mining
Figu e 4 summa izes he answe s o he second a ea - he ield o inno a i e solu ions in mining.
Fig. 4. Su ey esul s o A ea Numbe 2 o Table 2
Almos all esponden s (88%) ag eed ha he Mines need inno a i e solu ions. Responden s also ag eed on
he in oduc ion o au oma ion and digi iza ion in mines. As many as 77.5% o esponden s suppo such
ope a ions.
The mine s wo king in he longwall a e no sa is ied wi h he cu en le el o ex ac ion. 63.5% o he
esponden s belie e ha he ex ac ion is no a an app op ia e le el. Only 26.5% o esponden s claim o be
sa is ied in his si ua ion. Mos esponden s (66.5%) claim ha au oma ion a ec s he inc ease in ex ac ion. In
addi ion, mos mine s belie e ha he p og ess o he longwall should be inc eased. This opinion is sha ed by as
many as 88% o he esponden s. A he same ime, 54% o esponden s belie e ha i is possible o inc ease he
numbe o oadheade ope a ing cycles pe day. The mine s also see a need o in ensi y he p oduc ion and
concen a ion o ex ac ion. 66.5% o he su eyed employees suppo such ac i i ies, only 1.5% say he con a y,
and 33% ha e no opinion on his issue.
Mo e han hal o he mine s (60.5%) deemed hei wo kplace sa e. 25.5% o he su eyed employees ha e
no sense o secu i y in hei daily wo k. The esponden s ag ee ha new echnologies imp o ed wo k sa e y. As
many as 88% o mine s sha ed his opinion. Al hough mo e han hal o mine s eel sa e in hei wo kplace, as
many as 94.5% o esponden s see he need o look o new solu ions in he ield o imp o ing sa e y.
S age 3 – cu en solu ions o he powe ed oo suppo
In he hi d s age, he ocus was on he assessmen o cu en solu ions in he ield o powe ed oo suppo s.
The esul s o he esea ch a e p esen ed in Figu e 5.
Fig. 5. Su ey esul s o A ea Numbe 3 o Table 3
0
20
40
60
80
100
120
140
160
180
200
12345678910
Numbe o esponses
Ques ion numbe
I don' know
No
Yes
0
20
40
60
80
100
120
140
160
180
200
1 2 3 4 5 6 7 8 9 10
Numbe o esponses
Ques ion numbe
I don' know
No
Yes
Bea a BORSKA e al. / Ac a Mon anis ica Slo aca, Volume 28 (2023), Numbe 1, 27-37
33
Almos hal (49%) o mine s belie e ha he cu en de elopmen o powe ed oo suppo s is a he igh
le el. 40% o esponden s did no exp ess sa is ac ion wi h he cu en ly used powe ed oo suppo s, and 11% o
esponden s do no ha e an opinion on his subjec . Simila answe s we e ob ained o he ques ion o whe he he
powe ed oo suppo s me hei equi emen s co ec ly. 41.5% o esponden s answe ed a i ma i ely, 36.5% said
no, and 22% did no exp ess a clea opinion.
The as majo i y o employees( 86%) knew wha powe ed oo suppo 's load capaci y is. A he same ime,
when i came o ob aining he equi ed load capaci y and he igh suppo o he exca a ion oo , he opinions
we e di ided. 40% o he esponden s belie ed ha he powe ed oo suppo s wo k wi h he equi ed load capaci y,
and 12% said hey do no . In u n, 45.5% o he esponden s answe ed ha he exca a ion oo is p ope ly
suppo ed, and 37% belie ed he opposi e.
On he o he hand, he mine s we e unanimous on he eliabili y o he powe ed oo suppo s. Only 10% o
esponden s belie e ha he cu en sec ion con ol sys ems we e eliable. As many as 82.5% o esponden s we e
no sa is ied wi h he eliabili y o he con ol sys ems. 60% o mine s saw p oblems in eloca ing he powe ed
oo suppo sec ion. In addi ion, mo e han hal o he esponden s (65.5%) said ha hyd aulic sys em ailu es
occu equen ly. Mine s esponded wi h a majo i y o o es (73.5%) ha powe ed oo suppo s equi ed
imp o emen s and inno a i e solu ions. As many as 81.5% o he esponden s belie ed ha eliable ope a ion o
he powe ed oo suppo could a ec he inc ease in ex ac ion.
S age 4 – echnology de elopmen conce ning powe ed oo suppo
In he las s age, he opinions o mine s on he scope o u he di ec ions o he de elopmen o powe ed oo
suppo s we e examined. The answe s a e p esen ed in Figu e 6.
Fig. 6. Su ey esul s o A ea numbe 4 o able 4
Rega ding he de elopmen o powe ed oo suppo s, he mine s ag eed on he need o s i e o educe hei
ailu e a e. This opinion was sha ed by (80,5%) o he esponden s. The emaining 19.5% did no ha e an opinion
on his subjec . As many as 89% o mine s also saw he need o imp o e he eliabili y o he powe ed oo suppo s.
The majo i y o he su eyed employees (77.5%) belie ed ha he pe o mance o he powe ed oo suppo s
should be moni o ed. In addi ion, he as majo i y o esponden s (89%) saw he need o con ol whe he he
sec ions ha e been expanded o he ini ial load capaci y.
Rega ding he au oma ic eloca ion o sec ions, he opinions o mine s we e di ided. 40% o esponden s
accep he possibili y o using au oma ic eloca ion o sec ions. 33% o esponden s belie ed ha his solu ion is
no possible, and 27% had no opinion on his subjec . A he same ime, mine s expec he implemen a ion o new
solu ions. 56% o esponden s belie ed ha he cu en sec ion con ol sys ems should be imp o ed. 67.5% o
esponden s expec ed suppo in he p ocess o sec ion expanding and ob aining he equi ed load capaci y.
Acco ding o he esponden s, he ime o eloca ing he sec ion a e a longwall panel was comple ed a ec ed
he amoun o ex ac ion. This opinion was sha ed by 75.5% o he esponden s. A he same ime, 47.5% belie ed
ha he p ocess o sec ion eloca ion could be accele a ed, and 30% denied i . 44% o esponden s said ha new
solu ions should be sough o sho en he ime o sec ion eloca ion. 32.5% o esponden s did no see such a need,
and 23.5% o esponden s emained neu al in his ega d.
0
20
40
60
80
100
120
140
160
180
200
1 2 3 4 5 6 7 8 9 10
Numbe o esponses
Ques ion numbe
I don' know
No
Yes
Bea a BORSKA e al. / Ac a Mon anis ica Slo aca, Volume 28 (2023), Numbe 1, 27-37
34
Discussion
Figu e 7 shows he answe s o indi idual g oups o esponden s o each s udied a ea. Manual wo ke s om
mechanical, elec ical and mining depa men s as well as supe ision employees, we e no ed he e. In he end, each
o he ou s udied a eas was summa ized. The pe cen age a es o esponses o indi idual a eas we e shown.
Fig. 7. A summa y o su ey esul s
The esponses o indi idual g oups o esponden s we e e y simila and did no di e signi ican ly.
Rega dless o he posi ion held, employees ha e simila iews. Al hough he concep o Indus y 4.0 was no
widely known among mine employees, hey belie ed ha inno a ion gene a es economic g ow h and posi i ely
a ec ed he compe i i eness and success o he company. A he same ime, hey decla ed ha ing us in new
echnologies.
Employees no iced he need o in ensi y p oduc i i y and inc ease ex ac ion. A he same ime, hey expec ed
he implemen a ion o inno a i e solu ions in mines. Al hough mo e han hal o he esponden s el sa e in hei
wo kplace, employees belie ed ha e o s should be made o imp o e sa e y.
Rega ding he powe ed oo suppo s, o e 40% o esponden s exp essed sa is ac ion wi h he cu en ly used
sys ems. They belie ed ha he powe ed oo suppo ul ils i s unc ion well and ha he exca a ion oo is
p ope ly suppo ed. Howe e , mos esponden s no iced he p oblem o equen ailu es, including ailu es o he
hyd aulic sys em. Thus, mine wo ke s expec ed inno a i e solu ions ha would imp o e he eliabili y o he
ope a ion o he powe ed oo suppo s. The esponden s also saw he need o moni o he ope a ing pa ame e s o
The esul s o he s udy o he human ac o in he de elopmen o he hyd aulic sys em o he powe ed oo
suppo
S age 1
De elopmen o
echnology o
unde g ound mining in
he e a o Indus y 4.0
Mechanics
Yes 52,2%
No 30,3%
I don' know 17,5%
Elec icians
Yes 46,8 %
No 35,0%
I don' know 18,2%
Mine s
Yes 60,4 %
No 26,4%
I don' know 13,2%
Supe iosion wo ke s
Yes 63,3 %
No 22,7%
I don' know 13,9%
S age 1:
Yes 58,4 %
No 26,7%
I don' know 14,9%
S age 2
Inno a i e solu ions in
mining
Mechanics
Yes 66,9%
No 12,5%
I don' know 20,6%
Elec icians
Yes 60,4 %
No 32,1 %
I don' know 7,5 %
Mine s
Yes 61,8 %
No 30,9 %
I don' know 7,3 %
Supe iosion wo ke s
Yes 74,6 %
No 13,9 %
I don' know 11,4 %
S age 2:
Yes 67,8%
No 21,0%
I don' know 11,2%
S age 3
Cu en solu ions in he
ield o powe ed oo
suppo s
Mechanics
Yes 58,4%
No 31,9%
I don' know 9,7%
Elec icians
Yes 49,3 %
No 31,1%
I don' know 19,6 %
Mine s
Yes 47,7%
No 31,1%
I don' know 21,3 %
Supe iosion wo ke s
Yes 61,2 %
No 26,3 %
I don' know 12,5 %
S age 3:
Yes 55,3%
No 29,2%
I don' know 15,5%
S age 4
De elopmen o
echnology in he ield o
powe ed oo suppo
Mechanics
Yes 72,2%
No 13,8 %
I don' know 14,1 %
Elec icians
Yes 66,4 %
No 23,6 %
I don' know 10,0 %
Mine s
Yes 58,8 %
No 27,3 %
I don; know 13,9 %
Supe iosion wo ke s
Yes 69,9 %
No 21,0 %
I don' know 9,2%
S age 4:
Yes 66,7 %
No 22,0%
I don' know 11,4%
Bea a BORSKA e al. / Ac a Mon anis ica Slo aca, Volume 28 (2023), Numbe 1, 27-37
35
he powe ed oo suppo . They no iced he need o con ol he equi ed load capaci y ob ained in he sec ions.
Acco ding o he esponden s, eliable ope a ion o he powe ed oo suppo could a ec he inc ease in ex ac ion.
Conclusions
I can be concluded ha one o he impo an aspec s o he de elopmen o echnology is he human ac o .
Technologies a e used and ope a ed by people, and hei p ima y unc ion is o se e hem. The e o e, new
echnologies should espond o he needs o socie y. The aim o his s udy was o examine he human ac o in he
de elopmen o he hyd aulic sys em o powe ed oo suppo . Fo his pu pose, su eys we e ca ied ou . Mine
employees who wo k wi h powe ed oo suppo s on a daily basis pa icipa ed in his su ey. The opinion
conce ning he ield o Indus y 4.0 and he de elopmen o new echnologies in mining, including mainly powe ed
oo suppo s, was examined.
Based on he assumed ela ionship in sec ion wo, he human ac o should be used in o de o inc ease he
sa e y le el o he powe ed suppo ope a ion. The ac o is de ined as a gene al e m used in a speciali y ha
s udies human-machine ela ions. To imp o e sa e y, bo h man and machine mus be unde s ood as one sys em.
Wha is needed is he bes possible adap a ion o he mechanized longwall lining o coope a e wi h he man
ope a ing i .
The esea ch shows ha mos mine wo ke s see a need o de elop echnology and imp o e he cu en ly used
solu ions in mining. The esponden s suppo he idea o he in oduc ion o au oma ion and digi iza ion in mines.
Employees a e in e es ed in new echnologies ha will help hem in hei daily wo k, and ha will inc ease sa e y.
Employees ela i ely a ely answe ed "I do no know" (Fig. 7), which p o es hei high awa eness.
The esul s o he conduc ed es s and hei analysis indica e he need o u he de elopmen o he powe ed
oo suppo . The esponden s' answe s may be use ul o cons uc o s and p oduce s o powe ed oo suppo s, as
well as p oduce s o con ol hyd aulics. The p esen ed conclusions may help o de e mine he lines o esea ch o
powe ed oo suppo s and he lines o hei de elopmen . Responden s poin ed ou he need o de elop he
powe ed oo suppo in e ms o bea ing capaci y. I is also necessa y o imp o e eliabili y. Mine s also expec
o moni o and con ol he ope a ing pa ame e s o he powe ed oo suppo . In he u u e, he esea ch may be
supplemen ed wi h o he aspec s o he cons uc ion and ope a ion o powe ed oo suppo s.
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