USE OF HYDROMECEANICS IN CHELYABINSK COAL MINES

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000600390114-2
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 3
• Document Creation Date: December 22, 2016
• Document Release Date: October 19, 2011
• Sequence Number: 114
• Publication Date: April 23, 1951
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/10/19: CIA-RDP80-00809A000600390114-2
CLASSIFICATION coiWiDur AL
CONFIDENTIAL
CENTRAL INTELLIGENCE AGENCY REPORT
INFORMATION FROM
FOREIGN DOCUMENTS OR RADIO BROADCASTS CD NO.
HOW
PUBLISHED Monthly Periodical
WHERE
PUBLISHED Moscow
DATE
PUBLISHED Feb 1951
I T0/NIITADOOCUUMINTMITIOCONTAINIITATIIIWITNIN NPOINATTNl IDl Al A flD iDA IInnPIOMDAfONAID U0iin'IC.
RANINO 01 L ACT lO
V. I. C., I I AND II. AI Alle2ID. T
IT1 RANUUIllION ON TA! 1.YILATION
01 ITS C IN ANY MANNIN TO AM UN IZID POISON II PlO?
MIIITID IF IT LAW. . IIP1000CTION OF THIS FORM ORM 11 II PIONIIITID.
DATE OF
INFORMATION 1951
DATE DIST. 9~ Apr 1951
NO. OF PAGES 3
SUPPLEMENT TO
REPORT NO.
Mekhanizateiya Trudoyemkikh i TymzhAl Rabot, No 2, 1951.
Work carried out in 1950 in the 1 asnoael'skiy coal it completely confirmed
the high effectiveness of hydromechanics in connection with mechanical breaking
of the ground and also the possibility of using hydromechanics not only for re-
moving soft material but also the more compact rock such as argillite and silt-
stone. All the earthwork in the construction of the 1 asnosel'skiy.coal.pit
was completed by hydromechanical means: pumps, mud pumps, and hydromonitors,
working in connection with bulldozers. Removal of the overburden has now started.
The Rrasnosel'skiy coal pit, located in the southern part.of the Chelyabinsk
Oblast and intended for working by the open pit methob, consists of a seen of
lignite with a total thickness of 41.2 meters and a dip of 35-45 legrees. The
roof and floor are m4e up.of argiuite and siltstone. The rock removed from
the pit consists of sandy clay, consertal quartz sands, compact fire clays,
siltstone, and argillite. The average thickness of the overburden is 9 meters.
The water supply for the hydromechanical operations is maintained by the
repeated use of the water (in circulation). Additional water is obtained from
the Uvellka River located 3,800 meters from the place of operations.
Three installations with 8NZ mud pumps and 160-kilowatt electric motors are
in operation. The first and second installation have booster stations, each
consisting of an BEZ and pump with a 160-kilowatt electric motor. Thus five
8NZ mud pumps and five electric motors are located directly in tne_Ipit. A
hydromonitor is set up-near -ch operating mud pump, and one bulldozer on an
s-80 tractor is assigned to each mud pump.
The use of hydromechanics in connection with mechanical breaking of the
ground was proposed by Prof N..D. Rholin. The chief feature of this method-con-
sists of a preliminary breaking of the ground by bulldozers r=o:ithat'-the
- 1 -
nnurinrilTl R
CONFIDENTIAIA UitItf1Us111IAL
STATE
DISTRIBUTION
ARMY
7-T-1
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 Sanitized Copy Approved for Release 2011/10/19: CIA-RDP80-00809A000600390114-2
hydromonitors will not have to operate at such high pressure, the water consump-
tion per cubic meter of ground removed will be decreased, and the productivity
of the mud pump will be decreased. The chief advantage of using bulldozers
instead of excavators is that bulldozers are.more maneuverable, more economical,
and more efficient.
Two methods of using the bulldozers have been 'employed in the pit. In one
case, the bulldozer works a bench 5 meters wide, ceutt g. a (W- 5r cceY~timaher'. syer.
The blade in this case moves along the length of the bench and drops the cut
ground over the side down the slope. Work by this method is effective; only if
the bulldozer has two blades or if the width of the strip to be cut is equal
to the bulldozer?s tread, that is, 2.8 meters.
In the second method, the bulldozer operates at a right angle to the bench,
moves the cut ground to the edge of the bench, and dumps the ground down the slope
of the excavation. With the blade slightly rained, the bulldozer then moves
back to its former poslticn. Using this method, the productivity of the bulldozer
varies greatly depending on the sort of ground being cut, the distance the roil
is to be transported, and the angle of the dip of the mine face.
The hourly productivity achieved by this method is shown, in cubic meters,
in the following table:
Angle of Dip
of Mine Face
Transportation Distance.(in deters)
(in de
Type of Ground
10
20
30
40
50
60
70
Up to 8
Up to 8
up to 8
Sandy
Fire clay,
sands, top soil
Compact clay,
sands, top
162.0
50.0
91.3
35.0
--
22.5
--
17.5
--
15.0
--
--
--
--
soil
120.0
80.0
62.0
.45.0
35.0
28.5
23.7
8-10
Same as above
109.0
76.5
57.5
43.0
35.0
28.5
23.8
10-12
Same as above
96.0
72.5
55.0
41.2
33.7
27.5
23.1
12-14
Same as above
87.5
63.6
50.0
37.5
30.0
22.5
20.0
14-16
Same as above
72.5
47.5
33.7
25.0
18.8
--
'Up to 18
Sandy
72.5
47.5
33.7
25.0
18.8
--
--
16-20
Sandy
108.0
75.0
57.0
--
--
--
--
20-25
Sandy
87.0
62.0
49.0
--
--
--
--
Above 25
Sandy
71.0
46.0
32.0
--
--
--
The average work figures for the three mud pumps during three quarters of
1950 are given in the following table (the first and second pumps were used
mainly for auxiliary operations and could not be exploited at full capacity):
Yr Plan
9-Mo Performance
Year volume of stripping (in 1,000 cu m)
500.0
,676.9
Year performance of 8NZ installation (in 1,000 on a)
230.0
226.0
No. of mine-face installations operating'
.2.25
. 3.0
No of hours actually worked by mine-face mud-pump
installations
9,424
No of hours of mining operations per installation
per 24. hr
20.2
CONFIDENTIAL
~eFl E~uT~,1
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1
(.cu m)
Average hourly productivity per 8!Z installation
(cu m)
Shift performance per miner (Cu m) --
Consumption of electricity per cubic meter, (kw-h) --
The third installation worked only at the removal of overburden and its
performance from 1 October 1949 through 1 October 1950 was as-'follows:
Year performance (in 1,000 Cu m)
Plan
230
Actual performance
350
Mining time per day (nr
Daily perrorIDance (cu mi
2,n0n-
Hourly performance (Cu m)
91
Shift performance' per worker (cu m per worker)
135
Shift performance of brigade in charge of
installation (cu.m)
-3-
CONFiVOTiAL
r?'nmrifIVRA1.
iI itl o,,,.. - ----
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