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Calculation of the grain-size composition in crushing of jointed rock by blasting
66A
783184 INFLUENCE OF THE SHAPE AND SIZE OF THE CCMPENSATION SPACES ON THE CRUSHING QUALITY IN ORE BREAKING BY BCRE~OLES Fedorenko, P I; Kov~un, I N SOy Min Sci, VI3, NI, Jan-Feb 1977, P31-3~ Investigates and gives recommendations for compensation spaces for use in blasting. 783185 CAMOUFLET BLASTING IN BUMP-PRONE COAL SEAMS Mskarov, Y N; Aklnshln, B T; Fillnkov, A A SOy Min Sci, VI3, NI, Jan-Feb 1977, P94-96
783186
AN ALGORITHM FOR CALCULATING THE CHARGE FOR A BLAST HOLE Shevkt~, E B SOy Min Sci, V13, N1, Jan-Feb 1977, P97"99 Based on the specific energy const~nptlon of roller-bit drllling~ the algorithm calculates the charges in conformity with the structure of the rock for each blast hole separately.
783187 EFFECT OF AN AIR CAVITY ON THE MO~ION OF THE GROUND DURING EJECTION BLASTING Melnikov, N V; Marchenko, L N; Zharlkov, I F SOy Min Sci, VI2, NS, Sept-Oct 1976, I>501-507 Investigates the mechanism of energy transfer to a solid m e d i ~ in the first stage of development of the blasting process (before the compression wave reaches the free surface) by means of comparative tests of ordinary spherical charges and air cavity charges in elasto-plastlc (polymethyl methacrylate) and brittle (sodlun thiosulphate) media. 783188 CALCULATION OF THE STRESS FIELD INDUCED BY FIRING ELONGATED CHARGES Babakov, V A; Taram, E P SOy Min Sci, V12, NS, Sept-Oct 1976, P507-510 783189 CALCULATION OF THE GRAIN-SIZE COMPOSITION IN CRUSHING OF JOINTED ROCK BY BLASTING Faddeenkov, N N Soy Min Sci, V12, NS, Sept-Oct 1976 , P510-514 783190 ENGINEERING OF ROCK BLASTING ON CIVIL PROJE6~S Hendron I A J In: Structural and Geotechnical Mechanics (Englewood Cliffs, NJ: Prentice-Hall, 1977 ), P242-277 Discusses the techrz[eal aspects of controlling construction blasting so as to prevent d s ~ z e to adjacent structures from ground vibration and alrblast, or to produce smooth perimeters on both surface and tunnel excavations.
Rock and Soil improvement Techniques Bolts and anchors
783191 BEHAVlOUR OF DEAD ANCHORS SUEYECTED TO REPEATED AND ALTE~ATING LOADS H~, T H; Sivspalan, E; Senturk, A Grour~ Engng, VII, N3, April 1978, P28-34, 40
Reports tests showing that under eyllc loading anchors sl~ain non-recoverable movements, becoming mare stable as the test progresses, but that the life of an anchor is considerably reduced. 783192 MECHANICALANCHOR FOR USE IN SO~T OR HIGHLY FISSURED GROUND Drew, S Grouni Engng, Vll, N1, Jan 1978, P23-25 Describes the SURE anchor, in which segments or petals expand over a cone in the reverse direction to a conventional anchor until locked between the cone and a cup. Reports field tests in chalk and discusses the limits of applicability. 783193 USE OF ROCK ANCHORS AT TARBELA Int Water Power Dam Constr, V30, N2, Feb 1978, P44-~7 Discusses the use of nearly 600 rock anchors in the repair work to the floor of stilling basin no 3 at the Tarbela Dam, Pakistan. 783194 SENSITIVE VIBRATIE~3 WIRE ROCK BOLT LOAD GAGE Babcock, C 0 Trans Soc Min Engr AIME, V262, N~, Dec 1977,
P293-299 A simple robust rock bolt load gauge was tested in the laboratory to define its characteristic behaviour and to obtain a meas~e of its performance. The gauge uses three vibrating wire sensors crimped 120 deg (2.09 rad) apart into the outer surface of a hollow cylindrical steel tube. The resonant frequencies of the wires change as the gauge is loaded. This change is read with a Creare meter developed for the Bureau of Mines on a previous contract to read borehole stress gauge results. A statistical analysis of data obtained defines the variables influencirg results. 783195 CHOOSING THE THREAD PROFILE FOR A ROOF BOLT Strygin, B I; Atamanov, V N SOy Min Sci, VI3, N1, Jan-Feb 1977, P67-88
Soil stabilisation 783196 SOIL STABILISATION FOR THE WOLFURT FREIG~ DEPOT Schumacher, E; Veder, C Grounl Engmg, VII, NI, Jan 1978, P2~..22,44 Describes stabillsation of the soil, consisting of densely-packed load-carryirg river deposits overlain by soft, s a r ~ c l a y e y silt up to a depth of llm, at a 350000sq m site in Austria. The stabilisation was by a vertical and horizontal drainage system as well as by surcharge loading. 783197 PG2ENfIALS OF LIME STABILIZATION OF L2rERITIC SOILS Ola, S A Erg~g Geol, VII, N4, Dec 1977, P305-317 The paper reviews llme stabillsation of lateritic soils and shows that all Nigerian lateritic soil from A-l-a soil to A-7-6 soil used in the Investigations Improved their ez~,'-1.neerlr~ characteristics substantially by the addition of llme. The plasticity indices of the soils were reduced
783184 INFLUENCE OF THE SHAPE AND SIZE OF THE CCMPENSATION SPACES ON THE CRUSHING QUALITY IN ORE BREAKING BY BCRE~OLES Fedorenko, P I; Kov~un, I N SOy Min Sci, VI3, NI, Jan-Feb 1977, P31-3~ Investigates and gives recommendations for compensation spaces for use in blasting. 783185 CAMOUFLET BLASTING IN BUMP-PRONE COAL SEAMS Mskarov, Y N; Aklnshln, B T; Fillnkov, A A SOy Min Sci, VI3, NI, Jan-Feb 1977, P94-96
783186
AN ALGORITHM FOR CALCULATING THE CHARGE FOR A BLAST HOLE Shevkt~, E B SOy Min Sci, V13, N1, Jan-Feb 1977, P97"99 Based on the specific energy const~nptlon of roller-bit drllling~ the algorithm calculates the charges in conformity with the structure of the rock for each blast hole separately.
783187 EFFECT OF AN AIR CAVITY ON THE MO~ION OF THE GROUND DURING EJECTION BLASTING Melnikov, N V; Marchenko, L N; Zharlkov, I F SOy Min Sci, VI2, NS, Sept-Oct 1976, I>501-507 Investigates the mechanism of energy transfer to a solid m e d i ~ in the first stage of development of the blasting process (before the compression wave reaches the free surface) by means of comparative tests of ordinary spherical charges and air cavity charges in elasto-plastlc (polymethyl methacrylate) and brittle (sodlun thiosulphate) media. 783188 CALCULATION OF THE STRESS FIELD INDUCED BY FIRING ELONGATED CHARGES Babakov, V A; Taram, E P SOy Min Sci, V12, NS, Sept-Oct 1976, P507-510 783189 CALCULATION OF THE GRAIN-SIZE COMPOSITION IN CRUSHING OF JOINTED ROCK BY BLASTING Faddeenkov, N N Soy Min Sci, V12, NS, Sept-Oct 1976 , P510-514 783190 ENGINEERING OF ROCK BLASTING ON CIVIL PROJE6~S Hendron I A J In: Structural and Geotechnical Mechanics (Englewood Cliffs, NJ: Prentice-Hall, 1977 ), P242-277 Discusses the techrz[eal aspects of controlling construction blasting so as to prevent d s ~ z e to adjacent structures from ground vibration and alrblast, or to produce smooth perimeters on both surface and tunnel excavations.
Rock and Soil improvement Techniques Bolts and anchors
783191 BEHAVlOUR OF DEAD ANCHORS SUEYECTED TO REPEATED AND ALTE~ATING LOADS H~, T H; Sivspalan, E; Senturk, A Grour~ Engng, VII, N3, April 1978, P28-34, 40
Reports tests showing that under eyllc loading anchors sl~ain non-recoverable movements, becoming mare stable as the test progresses, but that the life of an anchor is considerably reduced. 783192 MECHANICALANCHOR FOR USE IN SO~T OR HIGHLY FISSURED GROUND Drew, S Grouni Engng, Vll, N1, Jan 1978, P23-25 Describes the SURE anchor, in which segments or petals expand over a cone in the reverse direction to a conventional anchor until locked between the cone and a cup. Reports field tests in chalk and discusses the limits of applicability. 783193 USE OF ROCK ANCHORS AT TARBELA Int Water Power Dam Constr, V30, N2, Feb 1978, P44-~7 Discusses the use of nearly 600 rock anchors in the repair work to the floor of stilling basin no 3 at the Tarbela Dam, Pakistan. 783194 SENSITIVE VIBRATIE~3 WIRE ROCK BOLT LOAD GAGE Babcock, C 0 Trans Soc Min Engr AIME, V262, N~, Dec 1977,
P293-299 A simple robust rock bolt load gauge was tested in the laboratory to define its characteristic behaviour and to obtain a meas~e of its performance. The gauge uses three vibrating wire sensors crimped 120 deg (2.09 rad) apart into the outer surface of a hollow cylindrical steel tube. The resonant frequencies of the wires change as the gauge is loaded. This change is read with a Creare meter developed for the Bureau of Mines on a previous contract to read borehole stress gauge results. A statistical analysis of data obtained defines the variables influencirg results. 783195 CHOOSING THE THREAD PROFILE FOR A ROOF BOLT Strygin, B I; Atamanov, V N SOy Min Sci, VI3, N1, Jan-Feb 1977, P67-88
Soil stabilisation 783196 SOIL STABILISATION FOR THE WOLFURT FREIG~ DEPOT Schumacher, E; Veder, C Grounl Engmg, VII, NI, Jan 1978, P2~..22,44 Describes stabillsation of the soil, consisting of densely-packed load-carryirg river deposits overlain by soft, s a r ~ c l a y e y silt up to a depth of llm, at a 350000sq m site in Austria. The stabilisation was by a vertical and horizontal drainage system as well as by surcharge loading. 783197 PG2ENfIALS OF LIME STABILIZATION OF L2rERITIC SOILS Ola, S A Erg~g Geol, VII, N4, Dec 1977, P305-317 The paper reviews llme stabillsation of lateritic soils and shows that all Nigerian lateritic soil from A-l-a soil to A-7-6 soil used in the Investigations Improved their ez~,'-1.neerlr~ characteristics substantially by the addition of llme. The plasticity indices of the soils were reduced