ECONOMIC - COAL MINING, BACKFILLING

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000700140348-9
• Release Decision: RIPPUB
• Original Classification: R
• Document Page Count: 4
• Document Creation Date: December 22, 2016
• Document Release Date: August 8, 2011
• Sequence Number: 348
• Publication Date: November 10, 1953
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/09/13: CIA-RDP80-00809A000700140348-9
LANGUAGE
SUBJECT
HOW
PUBLISHED
YJHERE
PUBLISHED
DATE
PUBLISHED
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&conomic - Coal mining, backfilling
Monthly periodical
Moscow
May 1953
INFORMATION 1951 - 1953
REPORT
CD N0.
DATE OF
DATE DIST. ~~ Nov 1953
N0. OF PAGES 4
SUPPLEMENT TO
REPORT NO.
THIS IS UNEVALUATED INFORMATION
I. Ye. Atlas
Z. M. Ixytes
In working thick, steeply dipping seams in the Kuznetsk Basin, four diff~-
ent methods of backfilling are used at present; gravity, hydraulic, mechanical,
and pneumatic.
The choice of method is determined by actual conditions oP the lsy of the
seam and the existing method of working it. However, with some types of mining,
more than one method of backfilling can be used; for example, in mining by hori-
zontal slicing, both pneumatic and mechanical backfilling are employed and, in
mining by diagonal slicing and long p111ars, both the hydraulic method and the
gravity method are used.
To determine comparative technical and economic indexes oP the various types
of backfilling, the VUGI (All-Union Scientific Research Coal Institute) made an
analysis in 1951 of actual data on the productivity of backfilling installations
and also on the labor and expense involved in their use.
The ten sections selected for study from the Mine imeni Stalin, Mlne
No 3-3-bis, Mine imeni Voroshilov, and Mine imeni Kalinin accounted for about
20 percent of the coal output from mines of the Kuzbassugol' Combine which em-
ploy backfilling. In three of the sections studied the gravity method vas u9ed;
in two, the hydraulic method; in four, the pneumatic, and in one, the mechanical.
The systems of mining employed were horizontal and transverse diagonal slicing
(in .six sections), diagonal slicing (in three sections), and long pillars along
the strike (in one section).
The materials used for backfilling are obtained from central or local mine
pits. Cost of Q.ateriela varies within a wide range depending on a variety of
circumstances.
STATE
ARMY
NSRB
FBI
DISTRIBUTION
~~
:. _,
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CENTRAL INTELLIGENCE AGENCY
INFORMATION FROM
FOREIGN DOCUMENTS OR RADIO BROADCASTS
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Observations were carried on for 5 months in the ten sections. Results are
given in the series of tables which follows.
Txb1- 1. Comparative Average Coats per Cubic Meter of Baclsfilling
tfethod of
Actual Coats per
In Percent of Cost
R
Cubic Meter of
of Gravit
Back-
ackfi111nR
Mining Method
Backfill
y
ing (rubles)
filling
Gravity
Diagonal slicing, long
10,5
pillars along the strike
100
Ifydraulic
Diagonal slicing
T
13,5
129
ransverse diagonal
15.5
14$
slicing
Pneumatic
Horizontal slicing
17.0
162
Mechanical
Horizontal slicing
22.0
210
Tuble 2. Percentage Breakdown of Costs of Processes Involved in Backfilling
Loading of Buckfilling
Ffaterial at Surface
and Lowering It tc
]'
Underground
Transport
From Shaft
Hackfilling
Operations
in Extrac-
Drainage
and Removal
of Small
Total
roper Level to Section tion Section Particles
Costs
2M 24
48
--
].00
59 --
17
24
100
lEi ,5
67
--
100
14 11
75
--
100
3? Percentage Breakdown of Expense Items in Backfilling
Wager,
and
P:-:tras
--
Pfateriuls
Excluding
Backfilling
Power
Amortization
Other
E
xpenses
Total
enses
~'ra;itY
12
5
11
5
100
{iydi;3ulic
:'
12
7
3
100
Pne,usutic
53
.9
22
9
3
100
lechanical
76
10
8
3
3
100
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STAT '
Table 4. Humber of Man-Shifts per 1,000 Cubic Meters of Backfilling
Gravity
Hydraulic
Pneumatic
Mechanical
Baclsiilling
Bacldilling
Backfilliag
Backfilliag
(Section
(Section
(Section
(S
t
Ho 10
2
O
ec
ion
0
Mine imeni
Mine
imeni
Mine
imeni
Mine
lmeni
Stalin
Stalin
Stalin
Kalinial
Loading of
backfilling
material at
surfnce and
lowering it
to proper
level
Loading of
backf111ing 61
Repair and
inspection
of backfill-
ing instal-
lations
Conveyance
of pulp
Technical
inspection 7 23
Underground
transport
from shaft
(borehole)
to extrac-
tion section 42 __
Backfilling
operations in
extraction
section
Drainage and
removal of
small par-
ticles
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Table 5. Work Time and Idle Periods of PZM Pneumatic Machine (Pneumatic Backfilling)
Length of Time (mia) Percent of Time Shift
Apportionment Mine imeni eta- Mine imeni voroshi-
of Time of lin (Av data lov (Av data for Mine !dine
Backfilling for 101 time 45 time imeni imeni
Shift ~ observations) ooservations) Stalin Voroahilov
Work time of
backfilling
machine
Idle time of
backfilling
machine.
Including:
Shortage
and low
pressure
of com-
pressed
air
Adjusting
of pipes
140
30.8
29.2
340
69.2
70.8
Shortening
of pipes
and change
of ,joints 37
Repair of
machine 31 19 6.6 4.0
Repair of
feeders 16 16
Shortage of
backfilling
material
Other idle
-time 47 80 9.8 16.7
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