786:
36:. As the hot gases escaped the slits in the drill head at high speeds, they would break down the ground in front of the device. Experiments have shown the device could achieve drilling speed of 5 metres per minute through solid rock and up to 100 metres per minute in soil. In 1970, Soviet geologist Vladimir Smirnov said, the device "may well bring about a revolution in the facilities for penetrating the interior of the earth". While a number of experimental prototypes were made and tested, the device has not seen production.
773:
114:. The most notable feature of this design was its simplicity and ease of manufacturing; except for the drilling head with nozzles, it mostly used off-the-shelf parts. This rocket was capable of drilling a well 10 m deep and 1/2 m in diameter within one minute. According to Soviet geologist Lev Derbenev, this version of the rocket, "jet drilling device", weighs 17 times less [
53:) was spent on the actual digging, while the device lowered itself deeper into the well under its own weight. Tsiferov's device was capable of drilling the well tens of metres deep and 250–1000 mm in diameter, depending on the type of soil. Experiments have demonstrated that the device is able to drill holes not only in regular soil, but through solid rock,
49:
drilled well. Gas escaped between the device's shell and the walls of the well at speeds of up to 100 m/s, carrying along chunks of pulverized rock up to 15 cm across. In the process, the gas significantly cooled down through contact with the shaft's walls. Most of the energy contained in the propellant (5 to 100 thousand
48:
installed in the nose cone. The rocket was positioned nose down and the propellant ignited; hot gases escaped through the nozzles at supersonic speeds. Nozzles aimed downwards were responsible for demolition of the ground underneath the rocket; the next series of nozzles, aimed sideways, expanded the
85:
One of the disadvantages of the rocket drill was poor control, as the fluctuations in the ground composition along its way could severely affect its trajectory. Eventually, a device to control the underground rocket's trajectory was patented. In addition, an auxiliary device for collection of
74:
The solid fuel version of the device was limited by the volume of propellant it could carry, which was sufficient for 5 to 20 seconds of operation, enough to create a well up to 20 metres deep. The inventor saw further progress in moving on to liquid fuel rockets, expecting their
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is a device for rapidly drilling holes through soil and rock of varying composition at rates up to 1 metre per second by utilising supersonic jets of hot gases. It was developed by
Russian engineer Mikhail Tsiferov in 1948.
31:
The initial design called for an autonomous device equipped with a drill head that would be rotated by expanding gases generated by a propellant burning inside a combustion chamber, in a manner similar to a
563:Милиничев Г. (January 10, 1973). "Огненный смерч, пробивающий землю (подземная ракета инженера Циферова)" [Fiery tornado penetrating earth (Engineer Tsiferov's underground rocket)].
82:; the inventor was promoted to receive the exhibition's gold medal. The device and drilling method were patented in a number of countries, including US (1975–1976) and Canada (1977–1978).
728:
28:
Proposed uses for the device included drilling shallow holes for mineral exploration, construction, underground gasification of coal, water and methane drainage.
44:
Further development led to the first prototype, built in 1968. The device consisted of a cylindrical shell filled with solid propellant, with a number of
510:
700:
143:
827:
822:
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126:] fuel, and has 6 to 9 times greater productivity; a single device would provide cost savings of up to 42,000
832:
837:
784:, Циферов М. И., "Способ М. И. Циферова образования выработок в земной поверхности.", issued 1973-06-07
321:, Tsiferov Mikhail Ivanovich, "Apparatus for drilling holes in Earth's surface", issued 1976-01-27
75:
operational time to be measured in tens of minutes, with potential to be eventually increased to a few hours.
711:
654:
416:
302:, Tsiferov Mikhail Ivanovich, "Method of sinking holes in Earth's surface", issued 1975-11-04
359:, Tsiferov Mikhail I, "Apparatus for drilling holes in Earth's surface", issued 1978-01-03
356:
337:
318:
299:
781:
768:
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661:
423:
340:, Tsiferov Mikhail I, "Method of sinking holes in Earth's surface", issued 1977-02-01
99:
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696:
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671:
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539:
98:
In 1980s, under the supervision of the original inventor's son, Vladimir
Tsiferov, the
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771:, Циферов М. И., "Термогазодинамический способ", issued 1965
58:
120:] than a comparable drilling rig, requires 3 times less [
111:
127:
107:
167:
800:[Underground vehicle off to a journey: digging deep].
122:
116:
674:[Underground rockets, subterrinas, plasmatrons...].
102:
version of the underground rocket was developed, fueled by
461:. Continental and Overseas Organisation Limited: 59. 1970.
270:
268:
266:
218:
178:
176:
727:
Oparin V.N.; Danilov B.B.; Smolyanitsky B.N. (2010).
648:. IPC Building & Contract Journals Ltd.: 41 1973.
253:
251:
739:(5). Springer New York Consultants Bureau: 536–545.
592:. Fuel & Metallurgical Journals Ltd.: 343 1973.
473:. 37–38. Petroleum Press Bureau, London: 267. 1970.
608:. Fuel & Metallurgical Journals Ltd.: 23 1973.
682:The bowels of the Earth: the underground workshop
505:. Institution of Mechanical Engineers: 67. 1970.
572:Anon. (1973). "New soviet rocket sinks wells".
421:[Underground voyage of fiery endmill].
206:
695:. Petroleum Publishing Co. pp. 500–507.
386:
286:
242:
194:
8:
716:[The history of a talented design].
659:[Let there be underground rocket!].
653:Грошев, Валерий; Циферов, Владимир (1978).
511:"Soviets Claim Rocket Burrows Thru Ground"
398:
274:
230:
672:"Подземные ракеты, лодки, плазмотроны..."
620:. No. 5 July 1973. T. Telford. 1973.
374:
797:Ушел в поход… подземоход: глубоко копаем
729:"'Underground rocket' design principles"
542:[Diggers of the 20th Century].
451:"Rocket Drill – for fast deep drilling"
257:
160:
638:"High speed drilling – 17 m in 18 sec"
182:
523:"Unattached Rocket Drills Deep Wells"
168:Highways & road construction 1973
7:
78:Tsiferov's device was exhibited at
14:
802:Popular Mechanics Russian Edition
602:The Chartered Mechanical Engineer
499:The Chartered Mechanical Engineer
433:"Rocket to drill into the Earth?"
642:Highways & Road Construction
614:"Soviet method of well drilling"
632:. Novosti Printing House. 1973.
552:"Гиперболоид инженера Циферова"
495:"'Rocket Drill' For Deep Holes"
144:Plasma deep drilling technology
713:История талантливой разработки
1:
794:Зигуненко, Станислав (2006).
710:Максимович, Геннадий (1984).
582:"Water and Water Engineering"
558:(7). ЦК ВЛКСМ: 181–182. 1971.
533:(1–5). Penton/IPC: 734. 1970.
483:Control & Instrumentation
418:Подземный рейс огненной фрезы
692:Advanced drilling techniques
489:. Morgan-Grampian: 12. 1970.
219:Petroleum Press Service 1970
689:Maurer, William C. (1980).
684:] (in Russian). Знание.
586:Water and Water Engineering
445:. IPC Magazines: 130. 1967.
854:
538:Жолондковский, О. (1971).
479:"Self-guided rocket drill"
415:Жолондковский, О. (1966).
745:10.1007/s10913-010-0067-9
733:Journal of Mining Science
626:"Rocket goes underground"
467:"Rocket Goes Underground"
387:Грошев & Циферов 1978
287:Грошев & Циферов 1978
243:Грошев & Циферов 1978
796:
712:
676:
655:
417:
670:Друянов, В. А. (1980).
471:Petroleum Press Service
677:Недра – цех под землёй
656:Быть подземной ракете!
630:Sputnik Monthly Digest
598:"Rockets for Drilling"
546:(in Russian) (5): 19.
357:CA patent 1023731
338:CA patent 1004663
319:US patent 3934659
300:US patent 3917007
828:Excavating equipment
782:SU patent 522759
769:SU patent 212908
517:: 4:15. 31 May 1970.
207:Machinery Lloyd 1970
823:Drilling technology
574:Industrial Research
540:"Землекопы XX века"
833:Russian inventions
719:Техника – молодёжи
662:Техника – молодёжи
618:New Civil Engineer
427:(in Russian) (12).
424:Техника – молодёжи
389:, pp. 25, 35.
195:Жолондковский 1971
134:) in 1984 prices.
18:underground rocket
838:Soviet inventions
722:(in Russian) (2).
665:(in Russian) (7).
565:Московская правда
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88:core samples
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34:Segner wheel
30:
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22:rocket drill
21:
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544:Юный техник
183:Maurer 1980
100:liquid-fuel
817:Categories
155:References
149:Subterrene
132:US dollars
80:VDNKh-USSR
57:, ice and
55:permafrost
761:109585459
753:1062-7391
40:Prototype
138:See also
130:(53,000
104:gasoline
59:aquifers
409:Sources
128:roubles
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775:
759:
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699:
363:
344:
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112:oxygen
94:Liquid
808:(42).
757:S2CID
680:[
108:water
70:Solid
65:Fuels
749:ISSN
697:ISBN
741:doi
123:sic
117:sic
20:or
16:An
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265:^
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51:hp
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106:-
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