8 9. 7~ FOREIGN TECHNOLOGY DIVISION. Ca Ca 00. JuL ]TD-ID(RS)T THESES MND AMAOTAIONS OF A SCIETIFIC AND TECHNICAL

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1 ]TD-ID(RS)T Ca Ca 00 o FOREIGN TECHNOLOGY DIVISION N% THESES MND AMAOTAIONS OF A SCIETIFIC AND TECHNICAL STUDWETS, AN SIUDENTS OF THE ENGINEERING DEPAR7NEIT (Selected Articles) JuL Approved for public release; distribution unlimited ~

2 FTD -ID(RS)T EDITED TRANSLATION FTD-ID(RS)T-i April 1984 MICROFICH ER: TD-84-C-OO" 17 THESES AND ANNOTATIONS OF A SCIENTIFIC AND TECHNICAL CONFERENCE of PRFESSORS, INSTRuCTORS, GRAUATE STUDITS, AND STUDENTS O THE ENGINE ING DEPARTMENT (Selected Articles) English pages: 3 Source: Universitet Druzhby Narodov imeni Patrisa Lumimby, Tezisy i Annotatsii Nauchno-Tekhnicheskoy Konferent ii Professorov, Prepodaveteley, Aspirantov i Studentov Inzhenernogo Fakul'teta, Moscov, 1966, pp Country of origin: USSR Translat-d by: Carol S. Rack Requester: AEDC/IN Approved for public release; distribution unlimited. TINS TRANSLATION IS A RENDITION OF THE ONIGl. NA POREIGN TEXT WITHOUT ANY ANALYTICAL O EDITORIAL COMMENT. STATEMENTS 01 THEORIES PREPARED $Ys ADVOCATED O IMPLIED ARE THOSE OP THE SOURCE AO DO NOT NECESSARILY REFLECT THE POSITION TRANSLATION DIVISION OR OPMNION OF TN POIEIGN TECHNOLOGY DI. FOREIGN TECHNOLOGY DIVISION VISION, WP.AFB f FTD-D(Rs)T Date23 April

3 DISCLAIMER NOTICE THIS DOCUMENT IS BEST QUALITY PRACTICABLE. THE COPY FURNISHED TO DTIC CONTAINED A SIGNIFICANT NUMBER OF PAGES WHICH DO NOT REPRODUCE LEGIBLY.

4 Tdble of Contents. \ U.S. Board on Geographic Nmes Transliteration System... ii High-Speed Cutting of Level Mine Workings by V. A. Raskin... I,D Investigations of Movements of Wall Rocks When Working Thick Sloping Seams With Inclined Layers Using the)"kru Support, *,by Levendra Natkh Tkhaknr Aacesslon For ~ NTIS CRA&I DTIC AB Ju-tj f I'1t ion By- Distru,n/ Dist Avf1Thilbity Codes.;1.and/or Special i

5 9 U. S. BOARD CN GEOGRAPHIC NAMES TRANSLITERATION SYSTEM Block Italic Transliteration Block Italic Translitera.la,. Aa A A, a PP P R, r B, b C c Ce Ss 5.. Vv r - T, t r r r Q, Y y Y, U, U A A 8 D,d 04 P f E a I a Ye, ye; E, X x a Kh, kh m At am Zh, zh Um 1 it q Ts, ts Z, V Ch, ch 1,1 Ww Wu Sh, sh ID. y U 4 ut 4 Shch, sh...;h u K k A, L W rm, Vm M, m b b 4 b Y, y K? H w N, n 3 a ) a E, * 0 o 0 a 0, IU 1 of Y Yu, yu fln 7 a P, P Ru a x A Ya, ya 6ye initially, after vowels, and after u, b; e elsewhere. When written as I in Russian, transliterate as yi or 6. RUSSIAN AND ZNGLISH TRIGONOMETRIC FUNCTIONS Russian English Russian English Russian English sin sin sh sinh arc sh cos sinh cos " ch cosh arc ch tg cosh' tan th tanh arc th tanh' ctg cot sec cth coth sec arc sch cth coth' cosec csc sech cach arc sch cach sech' arc cach csch 1 Russian rot Ig English curl log GRAPHICS DISCLAIM All figures, graphics, tables, equations, etc. merged into this translation were extracted from the best quality copy available. ii, u I u i I i l i l ~ n l i li l l l m la l m i n m m n ne a...

6 HIGH-SPEED CUTTING OF LEVE MINE VORKINGS V. A. Raskin The report considers probles of organizing work, scientific research and new technology for cutting level workings. The modern process of high-speed cutting of mine workings cannot be organized without carefully analyzing different cutting methods. In the report, a great deal of attention is given to the determination of the correct number of workers in the shaft sinking <rew, the expedient organization of the supply of materials, servicing of the machines, mechanisms and equipment, conducting explosive werk, the selection of rational forms of the cycle of operation, and zhe use of mucking organizations. The report gives examples of the organization of high-speed cutting of level workings In the USSR and other states.

7 INVESTIGATIONS OF MOVEMENTS OF WALL ROCKS WHEN WORKING THICK SLOPING SEAMS WITH INCLINED LAYERS USING THE KTU* SUPPORT Levendra Natkh Tkhakur (India) The report gives the results of st-dies, made using models made of equivalent materials, of the possibility of working a plate 10 a thick lying at a depth of 500 a from the surface and having a system of inclined layers using the KTU [tr. note: expansion unknown] under conditions of the Djakarta field (India). The following were measured on tho models: the displacements of the immediate and main roof, the deformation of the coal floor when working the upper level, and the rate of movement of the roof in the spaces near the face on the upper and lower levels. It was established that it suffices to have a KTU with a fixed resistance of a~ound 10 t/m 2 when working the lower level for supporting the roof. Special attention is given in the report to the dynamics of the bearing pressure in front of the face and its change as the shaft space is widened. Measurements of the deformation of the coal floor when working the upper level showed the periodic nature of the movement of the floor in front of the face and its bulging into the mined space. The author establishes the expediency of using this system under ii 2

8 the conditions of the Djakarta field (India). A number of suggestions are given for Using the SYstem when working gas-bearing seams.