GUIDE
TO
COAL
MINING
EXTRACTION
FOR
LISAT
PIT
CONCESSION
OF
PT
TEGUH
SINAR
ABADI
‐
BAYAN
RESOUR
Tbk,
,
‐‐
General
General
Coal
Coal
Stratigraphy
Stratigraphy,
,
physical
physical
and
and
characteristic
characteristic
of
of
coal
coal
‐‐
Exposing Coal
Exposing Coal
Exposing
Exposing
Coal
Coal
‐‐
Cleaning
Cleaning
Coal
Coal
‐‐
Coal
Coal
Getting
Getting
g
g
&
&
Stocking
Stocking
g
g
‐‐
Coal
Coal
Loading
Loading
&
&
Hauling
Hauling
PT. THIESS CONTRACTORS INDONESIA
Prepared & presented by:
MELAK MINE PROJECT
PT. THIESS CONTRACTORS INDONESIA
La Ode Sapta A.
Introduction
Memberikan gambaran umum Kondisi Fisik dan Karakter batubara di Pit Lisat
Maksud :
‐
Memberikan
gambaran
umum
Kondisi
Fisik
dan
Karakter
batubara
di
Pit
Lisat
‐
Memberikan
pemahaman
prosedur
yang
benar
dalam
hal
pembukaan
batubara
(expose),
hingga
pengangkutan
batubara
ke
pelabuhan.
Sasaran:
‐
Peserta
dapat
mengaplikasikan
prosedur
ekspose
batubara
hingga
loading
batubara
di
lapangan
Tujuan & Sasaran :
‐
Peserta
mempunyai
rasa
memiliki
terhadap
bahan
tambang
(batubara)
‐
Peserta
dapat
bertanggung
jawab
atas
operasional
penambangan
batubara
‐
Peserta
memahami
dengan
baik
prosedur
yang
benar
dan
dianjurkan.
‐
Peserta
tidak
melakukan
pekerjaan
diluar
prosedur
yang
dianjurkan
‐
Menghasilkan
produk
batubara
yang
berkualitas
baik
untuk
kepuasan
client
dan
prestasi
yang
baik
untuk karyawan dan perusahaan
PT Thiess Contaractors Indonesia
Coal
on
Lisat
Pit
Lisat
General
Coal
Stratigraphy
/
Urutan lapisan batubara Pit Lisat
25 m
60 m
20 m
topo
50 m
15-18 m
25 m
Seam C
Seam 2
Seam 1
Seam F
Seam E
Seam D
Based
on
TSA
Geological
Model
There
is
6
Groups
of
Coal
Seam
S2
S2
S1
S2
SC
SE
SF
S1
Coal
on
Lisat
Pit
Seam 1_4; 1-3;1-2;1_1
Seam 2_1; 2_2
Coal
on
Lisat
Pit
Coal
on
Lisat
Pit
Parting,
carbonaceous
material
Clay band,
sometime thick or
thinning, or be lost
in other place
Coal
on
Lisat
Pit
Exposing
Coal
Seam Directions
COAL TYPE
HARDNESS
EXPOSE TO COAL ROOF
COAL PROTEC'N
EQUIPMENT SELECTION
Bright
Variable
No - Leave 3 cm (+) over coal
Required
2U
F
D_1
D_2
PC1250, D, D8 maybe D9
Dull
Hard
Expose to coal
D7, D9
SEAM
SEAM THICKNESS
<0.4m
Guide
for
Exposing
Coal
in
Lisat
Top clay band
Variable
Expose into clay band
Cat824, PC 1250, D7maybe D9
Bright top
Variable
No - Leave 3 cm (+) over coal
Required
CL
D
E_1
E_2
Cat824, PC1250, D7maybe D9
Dull
Hard
Expose to coal
D7, D9
Top clay band
Variable
Expose into clay band
Cat824, PC1250, D7maybe D9
0.4 ~ 0.9m
Bright top
Variable
No - Leave 3 cm (+) over coal
Required
2_1
2_2
1_1
1_2
Cat824, PC 1250, D7maybe D9
Dull
Hard
Expose to coal
Cat824, PC 1250, D7maybe D9
Top clay band
Variable
Expose into clay band
1_1
1_2
1_3
1_4 Cat824, PC1250, D7maybe D9
NB: the above is only a guide to overburden operations that expose coal and is required to minimise coal losses.
>0.9m
Exposing
Coal
Bright
Coal
Seam
Æ
all
seam
on
Lisat
Expose yang salah
Expose
yang
salah.
Exposing
Coal
Bund Wall
Leave OB min. 10 cm
Min. 10 cm
Sisakan OB / interburden minimal tebal 10 – 30 cm.
For
better
coal
recovery,
expose
coal
to
minimum
10
cm
from
roof
coal
Avoid
over
dig
on
coal
seam /
Hindari
Over
Dig
pada
batubara.
Exposing
Coal
Exposing
Coal
Exposing
Coal
Exposing
coal
strategy
Material sliding / fall down Æ
contaminate
Min. 1.00 m from
lowest seam (if any)
Max. expose high : 5-6 m
Max. expose high : 5-6 m
g
Max. expose high : 5-6 m
Eksose dengan space antara seam terbawah adalah minimum 1.00 m
Coal
characteristic
of
Seam
S1
– S2
not
consistent
as
coal
body,
to
avoid
that
lowest
seam
have
been
expose.
Min. 1.00 m from
lowest seam (if any)
Bund wall, can reduce contamination when rainy
Material
From
top
side
not
sliding
cause
of
unstable
slope,
the
impact
is
coal
can
contaminate.
If
possible,
make
bund
wall
on
the
top
for
drainage
and
anticipate
when
rain
day,
coal
body
not
contaminate
by
mud
water
flowing
through
coal
roof/body
Max. expose
high : 5-6 m
Exposing
Coal
Over dig
space min. 1.00 m to
start drop cut
Hindari Over dig, usahakan big digger menggali OB dengan jarak minimal 1 m dari seam paling bawah.
Occurred cause of top coal face not clean up perfectly, or covered by bund wall
NB : Generally coal loose often occurred in this case particularly on night shift
Exposing
Coal
Material top soil berjatuhan karena ekspos yang salah, dapat
b bk
k
t
i
i b t b
Exposing
Coal
Coal
contaminate
by
mud
on
melamuk
pit.
It
must
be
expose
the
coal
line
/
cropline
first
before
exposing
coal,
no
bundwall
Exposing
Coal
material
on
the
top
will
fall
down
to
coal
face
Exposing
Coal
1.00 m
l
l
Cleaning
Coal
Bund Wall
Remove OB/IB/Parting push &
press until coal roof face (max.
coal cleaned 5 cm from top
Cleaning
Coal
coal cleaned 5 cm from top
roof)
Clean up coal always use Coal
Bucket Excavator
Bund Wall
Clean coal
Coal
Getting
Bund Wall
Sisakan
minimal 10 cm
Cleaning
Coal
Always
use
coal
bucket
excavator,
always
use
Hitachi
330
reach
from
top
to
bottom with slow motion
bottom
with
slow
motion
Cleaning
Coal
Cleaning
coal
Stocking
Coal
k
l
Stocking
coal
strategy
Maximize Stocking coal min.
high : 2 - 3 m
Maximize Stocking coal min.
high : 2 - 3 m
Top
face,
getting
coal
from
here
to
bottom
Coal suggested to stock until flat with base
-
Stocking
coal
use
PC400
with
clean
track
condition
(no
mud)
‐
Reach
and
touch
coal
body
slowly
from
top
side
to
bottom
‐
Touch and press slowly with bucket because coal to many cleat
Not suggested
Æ
double handling
Æ
cost
Touch
and
press
slowly
with
bucket,
because
coal
to
many
cleat
and
clay
banded
with
shalley
structure,
it
will
be
fall
down
Stocking
Coal
Stocking
Coal
Loading
Coal
NOT
ALLOWED!
ALLOWED
Range
of
Load
28
– 30
Tonnes
Load
>
30
Tonnes
BENAR
SALAH
JANGAN DIPADATKAN
NO COMPACTION!
MUATAN RATA TANPA DIPADATKAN
Coal
Mined
Out
Hanging
Coal??
Coal
Mined
Out
Spot
coal
on
Floor
Jangan
meninggalkan
floor
dengan
keadaan
seperti
dalam
gambar,
keep
all
coal
Survey
Pick
Up
Floor Seam X
Floor Seam Y
Roof Seam X
Dirty Coal
Pick up dirty coal / oxidize joint survey
with client, to calculate quantity
Æ
Sign off
Over Dig
Æ
coal loose
Æ
penalty
Sign off
Parting/interburden seam Y
NB : Generally coal loose often occurred in this case
Survey must be pick up all coal face such us, roof, floor, parting, dirty
coal before coal stocking and loading
M k
th t
l
i
k
th t
l h
b
i k
Occurred cause of top coal face not clean up perfectly, or covered by bund wall
Make sure that coal supervisor known that coal have been pick up
Dirty Coal pick up must be communicate with geos & client for sign off
Coal
Mine
Process
Coal Expose
Coal Expose
Drainage, bund wall, no material on top, etc
Form Loading Coal
Form Loading Coal
Checklist
Checklist
Clean Up
Clean Up
Coal Base
Coal Base
Top coal, roof, remove
Use grader / small
Top coal, roof, remove
contamination
Use grader / small
dozer, keep clean
Coal Getting & Stocking
Coal Getting & Stocking
Survey Pick Up
Survey Pick Up
Roof, floor, parting,
dirty coal, top face
Use PC 400, Clean
track from mud, stock
all expose if possible
Loading Coal
Loading Coal
Use PC400, load to
t
k d
’t
t
truck, don’t compact,
just spilled on vessel
Sign Off
Mined out
Mined out
Keep clean floor, no
hanging coal, no over dig
TCI – TSA
(If any problem)
IN PIT JOIN COAL INSPECTION
PT TSA - FKP
Sign Off Join Pit
Inspection
Date Inspection
:
Time
:
Location
:
PIT MELAMUK / LISAT
Ispected by
:
PT Thiess Contractors Indonesia
PT TSA - FKP (Bayan Group)
1
1
IN
PIT
JOIN
COAL
INSPECTION
Inspection
2
2
3
3
Qty.
(Tonnes)1
COAL TYPE
SEAM
NO.
BLOCK
REMARKS
DIRTY COAL
1
2
3
OXIDIZE COAL
BURN COAL
4
TOTAL
OTHER
According to join Inspection within PT Thiess Contractors Indonesia and Client PT TSA - FKP Bayan Group :
Coal will be :
dump / continue expose / stocking
as
Coal Resource / Overburden / Loose Coal
with total quantity
tonnes / bcm .
Comments:
Signature
PT. Thiess Contractors Indonesia
PT TSA - FKP (Bayan Group)
1 Name
:
1 Name
:
1 Name
:
Title
:
Title :
A. SHIFT : DAY / NIGHT DATE: _____________________
COAL LOADING & HAULING CHECKLIST
Coal Loading & Hauling
Checklist
COAL LOADING QTY DUMPING
SEAM (Tonnes) CLEAN DIRTY TO REMARKS COAL TYPE
BLOCK NO
TOTAL
SEMUA JAWABAN "NO" HARUS DITINDAKLANJUTI DAN DIJELASKAN DIBAGIAN PENJELASAN (REMARKS)
COAL GETTING AREA YES NO
1 Apakah Roof Batubara sudah di cleaning dengan sempurna sehingga tidak ada pengotor pada lapisan batubara? 2 Apakah proses cleaning dilakukan dengan coal bucket excavator?
3 Apakah operator excavator mengetahui / berpengalaman dalam hal melakukan pekerjaan cleaning dan coal getting? 4 Apakah batubara di gali sampai floor?
5 Apakah bagian floor dibersihkan secara sempurna sehingga tidak ada spot batubara yang masih menempel pada bagian floor? 6 Apakah pengotor / dilusi di pisahkan pada tempat tertentu?
7 Apakah tidak terjadi pengotoran batubara oleh faktor lain? 8 Apakah sistem drainase di sekitar ekpose coal cukup baik?
9 Apakah Coal Face (Permukaan batubara bagian atas) sudah dibersihkan dengan sempurna dari pengotor / OB
COAL LOADING YES NO
1 Apakah lantai permukaan loading point rata dan posisi yang benar?
2 Apakan permukaan stocking batubara sudah dibersihkan dari lumpur / air yang dapat mengotori batubara dengan dozer atau alat lain?
3 Apakah Excavator memuat batubara dengan cara yang benar ke dalam truck?
4 Apakah pemuatan batubara mengisi penuh ke dalam bak truck dengan cara ditumpahkan rata dan tidak dipadatkan? 5 Apakah tersedia penerangan yang memadai dan di tempatkan pada tempat yang tidak menyilaukan mata operator?
6 A k h h k b t b d h b d di t t d k t k b b l di i t?
6 Apakah check erbatubara sudah berada di tempat dan cukup untuk beberapa loading point?
TINDAKAN PERBAIKAN
ITEM ACTION / TINDAKAN YANG DILAKUKAN CARRIED OUT BY DATE COMPLETED SIGNED
CATATAN:
Semua Tindak an Yang Belum Selesai Harus Diterusk an Kepada Supervisor Selanjutnya
DIINSPEKSI OLEH (COAL SUPERVISOR) DIPERIKSA OLEH (MINING SUPERINTEDENT)
Name : Name :
Name : _______________________________ Name : __________________________
Title : _______________________________ Title : __________________________
