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A simple device for monitoring large prefailure movements on slope. Technical note
51A
493 BOSS-BROWN, DM DAMES AND ~DORE, LONDON, GB A simple device for monitoring large prefailure movements on slope. Technical r~te. Q.J.~GNG GEOL.VT, N3,1974,P315-316. The construction of a relatively crude surveying Instrum-=nt for monitoring pre-failure displacements in excess of 50feet,occurlng in softer rocks,especial/~ the porphryies,is described.
Planning, geotechnical and structural mapping 4~ FOOKES,PG SI~DNS,WE Site investigation for a ms,or highwsy in glacial terrain of the Tsff Valley, South Wales. Symposium. S,,m-m~ies of papers. MIDLAND SOIL MECH.FOUND.ENGNG.SOC.SYMP.ON ~GNG.BEHAVIOUR OF GLACIAL MAT. ,BIRMINGHAM, APRIL,1975. Over the past three years a large investigation has been carried out on Stages 4 and 5 of the Taff Vale Trunk Road. The investigation has con~prised walkover surveys, inspection of air photography, engineering geomorpho. logical mapping and a full range of pitting, trenching, boring and drilling together with numerous stsmdard and other laboratory and field tests. The paper presents the main findings of the investigation and gives detailed data on the index and fundmm~utal properties of the various glacial soils emeountered. The soils have been simply classified in the field as colluvium, fill, kame terrace and varieties of till. The relative merits of the different techniques of the investigation are considered and general conclusions given on the characteristics of the materials and the engineering consequences of this. Auth.
hole logglug I has been found to be suitable for this pur. pose. 497 THREADGOLD, L WE~,RC Deep lam~uated clay deposits in the Sklpton area. Symposium. Stmmmries of papers. MIDLAND SOIL MECH.FOUND.E~NG.SOC.SYMP.OF ENGNG.BEHAVIOUR OF GLACIAL MAT.,BIRMINGHAM, APRIL,1975. The paper describes a major site investigation for the Western and Northern By.Pesses to the town of Skipton. These are to be constructed over deep varved clays and through Boulder Clay deposits. The major results of the survey are presented, together with comments on the plsm~nE and execution of soil surveys of this type. The luvestigat~on, over a period of 9 months on site involved more than 500 boreholes. The sequence and methods of boring, ss~ling, in-situ testing, logging and instrumentation is discussed. Summaries of the soil properties measured are presented together with their application in analysis. The paper describes the analyses which were undertaken to assess stability, consolidation sad drainage. In particular, problems of stage loading and negative skin friction are discussed. Correlation with con~uter analysis is also provided. Auth.
498 MCKINLEY, DG MCGOWN, A RADWk~, ~M Representative sampling and testing in fissured lodgement tills. Symposium. ~,mm~ies of papers. MIDLAND SOIL MECH.FOUND.ENGNG SOC.SYMP.ON ~NGNG BEHAVIOUR OF GLACIAL MAT~IALS,BIRMINGHAM, APRIL,1975. It is suggested that the size of representative samples is influenced by the presence of the fissures in glacial lodgement tills and that the size of representative samples and test specimens will increase with depth. The stress conditions likely to promote three alw~nsional anisotropy of many engineering properties are indicated and the applicability of various field and laboratory testing techniques and ssm~ling methods are discussed in relation to engineering uses of the soil: Tests include trisxial and permeability testing, pressuremeter and plate bearing tests and tests conducted in association with co~uter-aided predictions of aulsotropy ratios developed from fissure data.
495 DEARMAN, WR UNIV. NEWCASTLE.UI~N- TYNE, GB FOOKES, PG Engineering geological mapping for civil engineering practice in the United K~ingdom. 18F,3T,46R. Q.J.~GNG GBOL.V7,N3,1974,P223- 256. A brief review of past British practice in engineering geological mapping is given. The paper follows the recommendations given in the Report on the Preparation of Maps and Plans in Terms of Engineering Geology prepared by a Working Party of the Engineering Group of the Geo499 logical Society. A major division is made into small-scale SILVa, ML UNIV. 17LI~IS, CHICAGO,USA maps generalised in content and made for regional and FAILLACE, GA DAMES AND MOORE,MADRID, E planning purposes, and large.scale plans relatively de. Effect of sampling on the d ~ c stress-straln tailed in content and ~m~e for specific engineering pur. properties of till. Symposium. Summaries of papers. poses. Exs~les from present practice are illustrated MIDLAND SOIL MECH.FOUND.ENGNG SOC.SYMP.ON ~ G N G BE. and discussed. These include engineering geological maps, HAVIOUR OF GLACIAL MAT~IALS,BIR~GHAM, APRIL,1975. and engineering geological plans made at the reeomqaissance,Three different sampling techniques using a 2.41nch site investigation and construction stages of a proJect. diameter drive ssm~01er, a 3inch diameter thin wall sailer Geoteehnical plans, presenting a single engineering de. with an external cutting bit and a 41nch diameter double sign parameter or a combination of a limited number of tube core barrel were used to o~tain laboratory specimens parameters, are illustrated for both the reconnaissance for strain-controlled cyclic triaxial property tests to and site investigation stages of actual engineering prodevelop values of modulus and damping for a till deposit jects. After considering research in engineering geolocated in the Central United States. logical mapping, likely future trends and desirable developments are discussed. Auth.
Core recovery, logging, probing, boring and sampling See also abstract: 354 496 BOBINSON,VK THAMES W A T ~ AUTHOR .READING, GB Low cost geophysical well logs for hydrogeological investigations. 6F, 10B. Q.J. ~GNG.G~0L.V7, N2,1974, P207-215. ~he electronic e q u l p ~ t described is available "off the shelf" commercially end although rot designed for bore-
Photographic techniques 5OO NORMAuN,JW IMP~. COLL. SC I .TECHNOL.IONDON, GB HUNTINGTON, JF IMP~. COLL. SC I .TECHNOL.lONDON, GB Possible applications of photogeology to the study of rock mechanics. 4F,43R. Q. J. ~ G N G .G~OL.V7, N2,1974, PI07-119. Past work that is of common interest to the rock mechanic and the photogeologist is reviewed and fields of cooperative research are suggested. ~he following aspects are considered: general aspects of photogeology; special studies to try to correlate surface features
493 BOSS-BROWN, DM DAMES AND ~DORE, LONDON, GB A simple device for monitoring large prefailure movements on slope. Technical r~te. Q.J.~GNG GEOL.VT, N3,1974,P315-316. The construction of a relatively crude surveying Instrum-=nt for monitoring pre-failure displacements in excess of 50feet,occurlng in softer rocks,especial/~ the porphryies,is described.
Planning, geotechnical and structural mapping 4~ FOOKES,PG SI~DNS,WE Site investigation for a ms,or highwsy in glacial terrain of the Tsff Valley, South Wales. Symposium. S,,m-m~ies of papers. MIDLAND SOIL MECH.FOUND.ENGNG.SOC.SYMP.ON ~GNG.BEHAVIOUR OF GLACIAL MAT. ,BIRMINGHAM, APRIL,1975. Over the past three years a large investigation has been carried out on Stages 4 and 5 of the Taff Vale Trunk Road. The investigation has con~prised walkover surveys, inspection of air photography, engineering geomorpho. logical mapping and a full range of pitting, trenching, boring and drilling together with numerous stsmdard and other laboratory and field tests. The paper presents the main findings of the investigation and gives detailed data on the index and fundmm~utal properties of the various glacial soils emeountered. The soils have been simply classified in the field as colluvium, fill, kame terrace and varieties of till. The relative merits of the different techniques of the investigation are considered and general conclusions given on the characteristics of the materials and the engineering consequences of this. Auth.
hole logglug I has been found to be suitable for this pur. pose. 497 THREADGOLD, L WE~,RC Deep lam~uated clay deposits in the Sklpton area. Symposium. Stmmmries of papers. MIDLAND SOIL MECH.FOUND.E~NG.SOC.SYMP.OF ENGNG.BEHAVIOUR OF GLACIAL MAT.,BIRMINGHAM, APRIL,1975. The paper describes a major site investigation for the Western and Northern By.Pesses to the town of Skipton. These are to be constructed over deep varved clays and through Boulder Clay deposits. The major results of the survey are presented, together with comments on the plsm~nE and execution of soil surveys of this type. The luvestigat~on, over a period of 9 months on site involved more than 500 boreholes. The sequence and methods of boring, ss~ling, in-situ testing, logging and instrumentation is discussed. Summaries of the soil properties measured are presented together with their application in analysis. The paper describes the analyses which were undertaken to assess stability, consolidation sad drainage. In particular, problems of stage loading and negative skin friction are discussed. Correlation with con~uter analysis is also provided. Auth.
498 MCKINLEY, DG MCGOWN, A RADWk~, ~M Representative sampling and testing in fissured lodgement tills. Symposium. ~,mm~ies of papers. MIDLAND SOIL MECH.FOUND.ENGNG SOC.SYMP.ON ~NGNG BEHAVIOUR OF GLACIAL MAT~IALS,BIRMINGHAM, APRIL,1975. It is suggested that the size of representative samples is influenced by the presence of the fissures in glacial lodgement tills and that the size of representative samples and test specimens will increase with depth. The stress conditions likely to promote three alw~nsional anisotropy of many engineering properties are indicated and the applicability of various field and laboratory testing techniques and ssm~ling methods are discussed in relation to engineering uses of the soil: Tests include trisxial and permeability testing, pressuremeter and plate bearing tests and tests conducted in association with co~uter-aided predictions of aulsotropy ratios developed from fissure data.
495 DEARMAN, WR UNIV. NEWCASTLE.UI~N- TYNE, GB FOOKES, PG Engineering geological mapping for civil engineering practice in the United K~ingdom. 18F,3T,46R. Q.J.~GNG GBOL.V7,N3,1974,P223- 256. A brief review of past British practice in engineering geological mapping is given. The paper follows the recommendations given in the Report on the Preparation of Maps and Plans in Terms of Engineering Geology prepared by a Working Party of the Engineering Group of the Geo499 logical Society. A major division is made into small-scale SILVa, ML UNIV. 17LI~IS, CHICAGO,USA maps generalised in content and made for regional and FAILLACE, GA DAMES AND MOORE,MADRID, E planning purposes, and large.scale plans relatively de. Effect of sampling on the d ~ c stress-straln tailed in content and ~m~e for specific engineering pur. properties of till. Symposium. Summaries of papers. poses. Exs~les from present practice are illustrated MIDLAND SOIL MECH.FOUND.ENGNG SOC.SYMP.ON ~ G N G BE. and discussed. These include engineering geological maps, HAVIOUR OF GLACIAL MAT~IALS,BIR~GHAM, APRIL,1975. and engineering geological plans made at the reeomqaissance,Three different sampling techniques using a 2.41nch site investigation and construction stages of a proJect. diameter drive ssm~01er, a 3inch diameter thin wall sailer Geoteehnical plans, presenting a single engineering de. with an external cutting bit and a 41nch diameter double sign parameter or a combination of a limited number of tube core barrel were used to o~tain laboratory specimens parameters, are illustrated for both the reconnaissance for strain-controlled cyclic triaxial property tests to and site investigation stages of actual engineering prodevelop values of modulus and damping for a till deposit jects. After considering research in engineering geolocated in the Central United States. logical mapping, likely future trends and desirable developments are discussed. Auth.
Core recovery, logging, probing, boring and sampling See also abstract: 354 496 BOBINSON,VK THAMES W A T ~ AUTHOR .READING, GB Low cost geophysical well logs for hydrogeological investigations. 6F, 10B. Q.J. ~GNG.G~0L.V7, N2,1974, P207-215. ~he electronic e q u l p ~ t described is available "off the shelf" commercially end although rot designed for bore-
Photographic techniques 5OO NORMAuN,JW IMP~. COLL. SC I .TECHNOL.IONDON, GB HUNTINGTON, JF IMP~. COLL. SC I .TECHNOL.lONDON, GB Possible applications of photogeology to the study of rock mechanics. 4F,43R. Q. J. ~ G N G .G~OL.V7, N2,1974, PI07-119. Past work that is of common interest to the rock mechanic and the photogeologist is reviewed and fields of cooperative research are suggested. ~he following aspects are considered: general aspects of photogeology; special studies to try to correlate surface features