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804236 fishing techniques in water well drilling: Cable tool drilling
76A
804225 RESIN ROCK BOLTING Daws, G Civil Eng~g, London, Nov 1979, P3~43, 53 Discusses the design of a resin anchor system for two types Of application, namely ~ b a r i n g into rock amd rock rei~fc~cement for structural suppart. Methods of installation and load testimg are briefly considered. 804226 OPERATIONAL ANALYSIS OF POINT RESIN-ANCHGRED BOLTING SYST~S Karabin, G J; Hoch, M T US Mine Safety Health Admin informational report, IR ll00, 197~, 14P THis report traces the development of and theory behind reain-ar2hored tensioned bolts, documents both laboratc~y and umde~groumd demonstrations of their effectiveness, and suggests installation guidelines through which the most efficient use Of these systems can be achieved. 804227 LARGE sCALE FIELD TEST OF P U M P A ~ ROOF BOLTS Olavson, L G; Sweet, R M USSM 0FR 83(1)-79, 15 Oct 1976, 124P The basic elements of the Im~pable bolt are the tension member in the form of strands of continuous fibreglass and a grout or cement in the form of an orgar4c resin. The fibreglass is fed into the bolt hole conventior~]ly drilled in the mine roof amd the resin is Imm~ped into this hole to grout the hole and bond the glass strands to the roof rock, thus forming a montensioned bolt. The feasibility of the p~npable bolt concept has been examined by large-scale field tests in two operating coal mines. Avail:~ NTIs, Sl~ringfield, Va 22161, USA
(I::'B2~16~-/AS)
Grouting 801~228 GROUND CONSOLIDATION WITH ROCAGIL AL 6 IN THE NC~D-PAS-DE'CALAIS COALFIELD (IN FRENCH) Publ Tech Charbon Fr, N2, 1979, P61-70 Reports the use of an acrylic resin to prevent disintegration of roof and seam.
Freezing 804231 GROUND F R ~ N G SETS SELBY CONTRACT ADRIPI Hayward, D New Civ Emgr, N385, 13 March 1980, I~i-45 Reports difficulties encOUntered during shaft sinking through frozen zones at Selby Mine, Yorkshire, UK. 804232 CAUSES OF DAMAGE TO THE LINING OF S ~ S
SUNK
WITH FRE~XNG OF T~E GROUND (IN POLISH) Plesniak, I; Przygodaka, B Przegl Gorn, V35, Ng, Sept 1979, p368-375 Dsmn=e %0 the lining of copper mime shafts guIg( in water-bearing or unstable strata is discussed, and the i~fluenee of the freezimg Jacket is considered. Much of the d,mAge could be avoided by ;roper control of the freezing process. A suitable method of monitoring freezing is indicated.
Site Investigation and Field Observation 804233 FAULT CREEP MEASUREMENT Bennett, J H Calif Gaol, V32, NS, May 1979, P98-105 Describes the use of electronic distarme measuring equipment to monitor creep on the San A:~Ireas Fault in California. 804234 MEASURING EARTH PRESSURE IN ~ N T DAMS Pemman, A D M Int Water Power Dam Constr, V31, N6, June
1979,
~34
Discusses the Goldbeck cell, cells usimg electrlcel resistance strain gauges, the vibrating wire cell and oil filled cells. Consid~s problems of placement of cells, particularly in existing dams.
Core recovery, logging, probing, boring and sampling
Soil compaction 804229 DESIGN CHART FOR VIBRO Civil Eng~g, Lomdon, Dec 1979, P38, 43
804235 IMPRESSION PACKER TESTS AT DRURIDGE BAY SITE INVESTIGATION Ground Engng, V13, NI, Jan 1980, P32-33
Discusses the vibrocompaction of cohesionless soils, including lab ani field tests to construct a compaction profile which relates soil response to machine parsmeters.
804236 FISHING TECHNIQUEs IN WATER WELL DRILLING: C A ~ R TOOL DRILLING Cruse, P K Ground EDging, VI3, NI, Jan 1980, P37-44, 50
804230 IMPERVIOUS CORE COMPACTION USING HEAVY VIbRATING ROLLERS Biche, A Int Water Power Dam Constr, V31, NS, May 1979, P28-30
804237 SAVING MONEY WITH COAL GEOPHYSICS Abshler, J F; M ~ i d e , G E; Besrdsmo~e, S F Coal Age, vS~, Ng, Sept 1979, PI00-110
A co~tractarls experience with a silty mterial at the Omed E1 Makhazine earthfill dam in Morocco.
Reviews the use of bc~ehole log~mg to show coal quality, rock strength above amd below mineable seams amd excavation characteristics of overburden.
804225 RESIN ROCK BOLTING Daws, G Civil Eng~g, London, Nov 1979, P3~43, 53 Discusses the design of a resin anchor system for two types Of application, namely ~ b a r i n g into rock amd rock rei~fc~cement for structural suppart. Methods of installation and load testimg are briefly considered. 804226 OPERATIONAL ANALYSIS OF POINT RESIN-ANCHGRED BOLTING SYST~S Karabin, G J; Hoch, M T US Mine Safety Health Admin informational report, IR ll00, 197~, 14P THis report traces the development of and theory behind reain-ar2hored tensioned bolts, documents both laboratc~y and umde~groumd demonstrations of their effectiveness, and suggests installation guidelines through which the most efficient use Of these systems can be achieved. 804227 LARGE sCALE FIELD TEST OF P U M P A ~ ROOF BOLTS Olavson, L G; Sweet, R M USSM 0FR 83(1)-79, 15 Oct 1976, 124P The basic elements of the Im~pable bolt are the tension member in the form of strands of continuous fibreglass and a grout or cement in the form of an orgar4c resin. The fibreglass is fed into the bolt hole conventior~]ly drilled in the mine roof amd the resin is Imm~ped into this hole to grout the hole and bond the glass strands to the roof rock, thus forming a montensioned bolt. The feasibility of the p~npable bolt concept has been examined by large-scale field tests in two operating coal mines. Avail:~ NTIs, Sl~ringfield, Va 22161, USA
(I::'B2~16~-/AS)
Grouting 801~228 GROUND CONSOLIDATION WITH ROCAGIL AL 6 IN THE NC~D-PAS-DE'CALAIS COALFIELD (IN FRENCH) Publ Tech Charbon Fr, N2, 1979, P61-70 Reports the use of an acrylic resin to prevent disintegration of roof and seam.
Freezing 804231 GROUND F R ~ N G SETS SELBY CONTRACT ADRIPI Hayward, D New Civ Emgr, N385, 13 March 1980, I~i-45 Reports difficulties encOUntered during shaft sinking through frozen zones at Selby Mine, Yorkshire, UK. 804232 CAUSES OF DAMAGE TO THE LINING OF S ~ S
SUNK
WITH FRE~XNG OF T~E GROUND (IN POLISH) Plesniak, I; Przygodaka, B Przegl Gorn, V35, Ng, Sept 1979, p368-375 Dsmn=e %0 the lining of copper mime shafts guIg( in water-bearing or unstable strata is discussed, and the i~fluenee of the freezimg Jacket is considered. Much of the d,mAge could be avoided by ;roper control of the freezing process. A suitable method of monitoring freezing is indicated.
Site Investigation and Field Observation 804233 FAULT CREEP MEASUREMENT Bennett, J H Calif Gaol, V32, NS, May 1979, P98-105 Describes the use of electronic distarme measuring equipment to monitor creep on the San A:~Ireas Fault in California. 804234 MEASURING EARTH PRESSURE IN ~ N T DAMS Pemman, A D M Int Water Power Dam Constr, V31, N6, June
1979,
~34
Discusses the Goldbeck cell, cells usimg electrlcel resistance strain gauges, the vibrating wire cell and oil filled cells. Consid~s problems of placement of cells, particularly in existing dams.
Core recovery, logging, probing, boring and sampling
Soil compaction 804229 DESIGN CHART FOR VIBRO Civil Eng~g, Lomdon, Dec 1979, P38, 43
804235 IMPRESSION PACKER TESTS AT DRURIDGE BAY SITE INVESTIGATION Ground Engng, V13, NI, Jan 1980, P32-33
Discusses the vibrocompaction of cohesionless soils, including lab ani field tests to construct a compaction profile which relates soil response to machine parsmeters.
804236 FISHING TECHNIQUEs IN WATER WELL DRILLING: C A ~ R TOOL DRILLING Cruse, P K Ground EDging, VI3, NI, Jan 1980, P37-44, 50
804230 IMPERVIOUS CORE COMPACTION USING HEAVY VIbRATING ROLLERS Biche, A Int Water Power Dam Constr, V31, NS, May 1979, P28-30
804237 SAVING MONEY WITH COAL GEOPHYSICS Abshler, J F; M ~ i d e , G E; Besrdsmo~e, S F Coal Age, vS~, Ng, Sept 1979, PI00-110
A co~tractarls experience with a silty mterial at the Omed E1 Makhazine earthfill dam in Morocco.
Reviews the use of bc~ehole log~mg to show coal quality, rock strength above amd below mineable seams amd excavation characteristics of overburden.