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Lateral stress measurement during cone penetration
172A and strength. Weathenng resistance under normal atmospheric ~,anauons and conditions of use was examined in cofferdams. The information was used to identify the most suitable materials for each part of the rockfill dam core. 884142 Some improvements in the characterization of basalts and limestones for rockfill structures Veiga Pinto. A; Delgado Rodrigues, J; Maranha des Neves. E Proc 5th International Congress International Association of Engineering Geology, Buenos Aires, 20-25 October 1986 V2. P1469-1475. Publ Rotterdam." A .4 Balkema. 1986
shov, a non-linear ',anauon or" stress with depth. At one site ,t stress discontinuit', of o',er 10MPa probabl.', indicates a major fracture zone. 884146 Lateral stress measurement during cone penetration Huntsman. S R: Mitchell. J K: Klejbuk, I_ W: Shinde. S B In: Use o f In Situ Tests in Geotechnical Engineering (papers to the Conference, Blacksburg, 23-25 June 1986) P617-634. Publ .Vew York..4SCE. 1986 ( ASCE Geotechnical Special Publication ,Vo 6 )
A series of tests has been carried out in Portugal on basalts and limestones in order to simplify geotechnical classification of rocks for use as rockfill. Crushing strength and weight loss in the slake durability test (2nd cycle) show promising correlations with mechanical properties. In addition, porosity and swelling strain are suitable parameters for carbonate rocks.
Sampling disturbance prohibits the cost-effective determination of in situ at rest lateral pressure in sand. A lateral stress sensing cone penetrometer has been developed for field use. Relations have been developed between measured lateral stress, in sttu lateral stress and density during tests in a calibration chamber. Preliminary field tests demonstrate the feasibility of obtaining reasonable values with this instrument.
884143 Contribution in studies of the parameters of convenience of cohesionless sediments in the construction of highways Radic. Z Proc 5th International Congress International Association o f Engineering Geology, Buenos Aires, 20-25 October 1986 V3. P1503-1508. Publ Rotterdam: .,! .4 Balkema. 1986
Site Investigation and Field Observation
In many areas cohesionless sediments must act as both construction and foundation material for roads. There are a numbcr of classification s>stems for cohesionless soils, but these predominantly apply to their use as constructional materials. Detailed analysis of the parameters measured in classification and their relations to other propcrties leads to the conclusion that It is possible to predict liquefaction or internal erosion from current classifications. They can thus bc appltcd to both constructaon and foundation materials.
In Situ Stress Measurement of in situ stress 884144 Fracture mechanics approach to hydraulic stress measurements Rummel, F In: Fracture Mechanics o f Rock. edited by B K Atkinson P217.239. Puhl London Academic Press. 1987 Analysis of hydraulic fracturing of rocks is complicated by the presence of pre-existing joints and fractures, and their effects on ftuid pressure and fluid flow. Examples of laboratory and field hydraulic fracturing experiments are presented. Attempts are made to develop a two dimensional fracture mechanics analysis of the real problem, with particular application to crustal stress measurements. 884145 Non-linear and discontinuous stress variation with depth in the upper crust of the Baltic Shield Bjarnason. B: Stephansson, O Proc 6th International Conference on Rock Mechanics, ,$1ontreal, 30 Aug-10 Sept 1987 V2. P809-812. Publ Rotterdam: A A Balkema. 1987 The results of multihose hydrofracturing tests from 5 sites in Sweden and I in Finland are presented. Only results from vertical, induced fractures are included. The data do not confirm the relatively large horizontal stresses close to the surface determined by overeoring methods, and vertical stress profiles
See a[¢o 884(116. 8840L~. ,~84284. 884358 884147 Ground engineer's reference book Bcll. F G (editor) London. Butter~orths. 1987. 1131P A comprehensive reference book covering all aspects of ground engineering.particularly aimed at the practising engineer. It is divided into 5 parts: properties and behaviour of the ground, in'.estigation in ground engineering, treatment of the ground, construction in ground engineering, and numerical methods and modelling in ground engineering. 884148 Geotechnical investigations for development of large opencast mines Baliga. B D; Singh, B J ,Win Met Fuels V35..V6. June 1987. P249-252 In India it is becoming necessary to develop open pit mines to great depths in regions with adverse hydrological problems. Geotechnical investigations used include core logging and testrag, in situ shear tests.structural mapping of exposed areas. and monitoring of slopes and subsurface v,ater conditions. Guidelines for stabiltt,~ analysis of cut slopes, fills, and dams are presented. Development problems of large hillside mines. including settlement of surface structures and blast vibration difficulties, are considered. Case studies are illustrated. 884149 Geotechnical studies for the stages design and construction of the pumped storage scheme 'Los Reyunos', Mendoza, Argentina Palma, A A: Fucntes..A J: Velo, R A: Cantarelli. R D Proc 5th International Congress International Association o f
Engineering Geology, Buenos Aires, 20-25 October 1986 V2. PII49-1159. Publ Rotterdam: A A Balkema. 1986 The site in',est~gauons for the two main structures of the project, the Los Reyunos dam and powerhouse, and the El Tigrc dam. are described. The rock masses were volcanic with igneous intrusions. Engineering geology mapping and rock mass classification were carried out. Forecasts of rock mass quality v.ere reasonably accurate for the Los Reyunos dam, but were
198~ Pergamon Press pie, Reproduction not pertained
shov, a non-linear ',anauon or" stress with depth. At one site ,t stress discontinuit', of o',er 10MPa probabl.', indicates a major fracture zone. 884146 Lateral stress measurement during cone penetration Huntsman. S R: Mitchell. J K: Klejbuk, I_ W: Shinde. S B In: Use o f In Situ Tests in Geotechnical Engineering (papers to the Conference, Blacksburg, 23-25 June 1986) P617-634. Publ .Vew York..4SCE. 1986 ( ASCE Geotechnical Special Publication ,Vo 6 )
A series of tests has been carried out in Portugal on basalts and limestones in order to simplify geotechnical classification of rocks for use as rockfill. Crushing strength and weight loss in the slake durability test (2nd cycle) show promising correlations with mechanical properties. In addition, porosity and swelling strain are suitable parameters for carbonate rocks.
Sampling disturbance prohibits the cost-effective determination of in situ at rest lateral pressure in sand. A lateral stress sensing cone penetrometer has been developed for field use. Relations have been developed between measured lateral stress, in sttu lateral stress and density during tests in a calibration chamber. Preliminary field tests demonstrate the feasibility of obtaining reasonable values with this instrument.
884143 Contribution in studies of the parameters of convenience of cohesionless sediments in the construction of highways Radic. Z Proc 5th International Congress International Association o f Engineering Geology, Buenos Aires, 20-25 October 1986 V3. P1503-1508. Publ Rotterdam: .,! .4 Balkema. 1986
Site Investigation and Field Observation
In many areas cohesionless sediments must act as both construction and foundation material for roads. There are a numbcr of classification s>stems for cohesionless soils, but these predominantly apply to their use as constructional materials. Detailed analysis of the parameters measured in classification and their relations to other propcrties leads to the conclusion that It is possible to predict liquefaction or internal erosion from current classifications. They can thus bc appltcd to both constructaon and foundation materials.
In Situ Stress Measurement of in situ stress 884144 Fracture mechanics approach to hydraulic stress measurements Rummel, F In: Fracture Mechanics o f Rock. edited by B K Atkinson P217.239. Puhl London Academic Press. 1987 Analysis of hydraulic fracturing of rocks is complicated by the presence of pre-existing joints and fractures, and their effects on ftuid pressure and fluid flow. Examples of laboratory and field hydraulic fracturing experiments are presented. Attempts are made to develop a two dimensional fracture mechanics analysis of the real problem, with particular application to crustal stress measurements. 884145 Non-linear and discontinuous stress variation with depth in the upper crust of the Baltic Shield Bjarnason. B: Stephansson, O Proc 6th International Conference on Rock Mechanics, ,$1ontreal, 30 Aug-10 Sept 1987 V2. P809-812. Publ Rotterdam: A A Balkema. 1987 The results of multihose hydrofracturing tests from 5 sites in Sweden and I in Finland are presented. Only results from vertical, induced fractures are included. The data do not confirm the relatively large horizontal stresses close to the surface determined by overeoring methods, and vertical stress profiles
See a[¢o 884(116. 8840L~. ,~84284. 884358 884147 Ground engineer's reference book Bcll. F G (editor) London. Butter~orths. 1987. 1131P A comprehensive reference book covering all aspects of ground engineering.particularly aimed at the practising engineer. It is divided into 5 parts: properties and behaviour of the ground, in'.estigation in ground engineering, treatment of the ground, construction in ground engineering, and numerical methods and modelling in ground engineering. 884148 Geotechnical investigations for development of large opencast mines Baliga. B D; Singh, B J ,Win Met Fuels V35..V6. June 1987. P249-252 In India it is becoming necessary to develop open pit mines to great depths in regions with adverse hydrological problems. Geotechnical investigations used include core logging and testrag, in situ shear tests.structural mapping of exposed areas. and monitoring of slopes and subsurface v,ater conditions. Guidelines for stabiltt,~ analysis of cut slopes, fills, and dams are presented. Development problems of large hillside mines. including settlement of surface structures and blast vibration difficulties, are considered. Case studies are illustrated. 884149 Geotechnical studies for the stages design and construction of the pumped storage scheme 'Los Reyunos', Mendoza, Argentina Palma, A A: Fucntes..A J: Velo, R A: Cantarelli. R D Proc 5th International Congress International Association o f
Engineering Geology, Buenos Aires, 20-25 October 1986 V2. PII49-1159. Publ Rotterdam: A A Balkema. 1986 The site in',est~gauons for the two main structures of the project, the Los Reyunos dam and powerhouse, and the El Tigrc dam. are described. The rock masses were volcanic with igneous intrusions. Engineering geology mapping and rock mass classification were carried out. Forecasts of rock mass quality v.ere reasonably accurate for the Los Reyunos dam, but were
198~ Pergamon Press pie, Reproduction not pertained