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Dynamic consolidation — dramatic way to strengthen soil
815237 DYNAMIC CONSOLIDATION - DRAMATIC WAY TO STRENDTHEN SOIL Ramaswas~, S D; Lee, S L; Dat~lah~ I U Civ Emgr~, NY, %"51, N~, Al~il 19@1, F?0-73 Briefly discusses the technique of dyramic consolidation with particttlar reference to its use in Singapore on sites consisting of silty clay, peaty clay ani dredged sand fill. Two case sttrlies from the USA are also included.
Freezing 815238 GROUND F',~'~,Z,TNG AIDS SWISS TUNNEL CONSTRUCTION Aerml, K; Mettier, K Turm %~,nnlg, VI3, NS, Al~il 1981, P52-53 Briefly relx~rts the use of ~rouni freezing in pert of the Milchbuck Tuzmel ber~ath the city of Zurich, Switzerland. The grouni consists of interbedded marl ani se~lstons (freshwater molasse) ani an area of well compacted moraine with inclusions of non-cohesive silty sard material amd the presence of sc~e water unier an artesian ~essm~e of up to 3 bar. Freezing was used to stabillse the moraine section.
Site Investigation and Field Observation 815239 CODE OF PRACTICE FOR SITE INVESTIGATIONS
( ~
cP ZOOl)
British Stamdard BS5930:1981, 30 April 1981, 147P A ccml~ehenslve document in the following main sacti~ns: ( ! ) $er, n ' a l considerations, (2) ~roun~ i n v e s t i g a t i o n , (3) e x c a v a t i o n , b o r i n g , sampling, ;rC~Ing and tests in bcrehales, (~) field tests, imcludlng pumping tests, d e n s i t y , in situ stress, bearing tests, shear tests, large scale field trials, back analysis, geophysical surveyAng, (5) l a h @ r a ~ tests on samples, (6) repc~'ts anl i ~ e t a ~ i o n , (7) description of soils a~i rocks, Imcl=klng classification. The treatmm~ ~ some of "~,e ~5 subsections is necessarily brief, however there is a bibliograDhy with 22 refere~ce~. Avail: British Stamdards Institution, 2 Park Street, Lorzlon, WIA 2BS, UK
8152~0 ORE BODY GEOU~D CONDITIONS Hazmen, D E; Lachel, D J Tu~ Techz~l Newsl, N32, Dec 1980, PI-15 Describes techniques us ,,,.q in acquiring information for evaluation of rock masses in the following areas: (i) the general a=i o-~-,.~tural i~,eolo~" of the site, (2) the mass anl material properties of the ore deposit a~d vicinity, (3) the groundwater h~irology of the deposit ani the vicinity anl ( 4 ) various grouma-~port anl design considerations. (Adapted from the author's chapter in the ~ Umdergrounl M i n i ~ Methods HandBook).
Planning, geotechnical and structural mapping 8!5241 ENGINEERING ZO~[ING MAP OF THE FE~41AN LIMESTONES OF NE ENGLAND Dearman, W R; Coffey, J R Q J Engng Geol, VI4, NI, 1981, P4!-57 The staniard stratigraphical divisions are reviewed and reinterpreted as emgimeerimg types in a classification related to emgineerimg requirements. Based on this classification a map of engineering geological zor~tion has been prepared ~t an original scale of i :50000. The gemeral engineering geological characteristics of each zonel unit are described, in relation to emgineering construction.
Core recovery, logging, probing, boring and sampling 815242 FILTERING PROBE INCLINOMETER DATA TO II~ENTIFY CHARACTERISTICS OF SLOPE MOVEMENT Kalkani, E C Rock Mech, VI3, N2, Nov 1980, P57-69 Examines inclinometer readings for syster~tic ard random errors. Presents a mathematical theory to reduce random errors in probe inclinometer data. The reduced magnitudes of displacement compared favourably with surveyed movements. 815243 CAUSES OF SAMPLING DISTURBANCE AND DESIGN OF A NEW SAMPLER FOR SENSITIVE SOILS La Rochelle, P; Sarrailh, J; Tavenas, F Can Geotech J, VI8, NI, Feb 1961, P52-66 Discusses the influence of sampling disturbance on the ~roperties of sensitive clays. Analyses the different factors causing sample disturbance in order to establish the primciples on which a good quality sampler should be designed. Describes a large diameter sampler which uses the overcoring technique to elimlmte suction and to ensure the r e c ~ of large samples without a piston, and evaluates its Perfcrm~e. 8152~ GEOPHYSICAL LOGGING FOR MINERAL EXYLORATION AND DEVELOPMENT Plouffej R D CIM Bull, V7~, ~28, April 1981, P84-92 Describes 4 dcwmhole log~ing techniques: radioactive, electrical, magnetic and mechanical. Discusses for each log the qualitative ani quantitative results, different types of ~robe, uses and l~oblems of the log, ar~ an cIItline of the background knowledge necessary for the full use of the log. 67 refs. 815245 EVALUATION OF SAMPLE QUALITY OF SANDY SOIL OSTAINED BY THE MODIFIED BISHOP SAMPLER Hsmzawz, H; Matsuia, E; Hirose, M SOils FOUnd, V20, N3, Sept 1980, P17-31 D e s c r i b e s t h e saml:~e.r a.nd c o n s ~ i e r e t h e ~rocedure fc~ obtaAnir~ in-situ dry density of a sample. E v a l u a t e s t h e q u a l i t y o f t h e sample based on various laboratory ani field test results. Discusses density change durim@ sampling and treatment ~rocedure, specimen ~reparation a~i transp=rtation.
Freezing 815238 GROUND F',~'~,Z,TNG AIDS SWISS TUNNEL CONSTRUCTION Aerml, K; Mettier, K Turm %~,nnlg, VI3, NS, Al~il 1981, P52-53 Briefly relx~rts the use of ~rouni freezing in pert of the Milchbuck Tuzmel ber~ath the city of Zurich, Switzerland. The grouni consists of interbedded marl ani se~lstons (freshwater molasse) ani an area of well compacted moraine with inclusions of non-cohesive silty sard material amd the presence of sc~e water unier an artesian ~essm~e of up to 3 bar. Freezing was used to stabillse the moraine section.
Site Investigation and Field Observation 815239 CODE OF PRACTICE FOR SITE INVESTIGATIONS
( ~
cP ZOOl)
British Stamdard BS5930:1981, 30 April 1981, 147P A ccml~ehenslve document in the following main sacti~ns: ( ! ) $er, n ' a l considerations, (2) ~roun~ i n v e s t i g a t i o n , (3) e x c a v a t i o n , b o r i n g , sampling, ;rC~Ing and tests in bcrehales, (~) field tests, imcludlng pumping tests, d e n s i t y , in situ stress, bearing tests, shear tests, large scale field trials, back analysis, geophysical surveyAng, (5) l a h @ r a ~ tests on samples, (6) repc~'ts anl i ~ e t a ~ i o n , (7) description of soils a~i rocks, Imcl=klng classification. The treatmm~ ~ some of "~,e ~5 subsections is necessarily brief, however there is a bibliograDhy with 22 refere~ce~. Avail: British Stamdards Institution, 2 Park Street, Lorzlon, WIA 2BS, UK
8152~0 ORE BODY GEOU~D CONDITIONS Hazmen, D E; Lachel, D J Tu~ Techz~l Newsl, N32, Dec 1980, PI-15 Describes techniques us ,,,.q in acquiring information for evaluation of rock masses in the following areas: (i) the general a=i o-~-,.~tural i~,eolo~" of the site, (2) the mass anl material properties of the ore deposit a~d vicinity, (3) the groundwater h~irology of the deposit ani the vicinity anl ( 4 ) various grouma-~port anl design considerations. (Adapted from the author's chapter in the ~ Umdergrounl M i n i ~ Methods HandBook).
Planning, geotechnical and structural mapping 8!5241 ENGINEERING ZO~[ING MAP OF THE FE~41AN LIMESTONES OF NE ENGLAND Dearman, W R; Coffey, J R Q J Engng Geol, VI4, NI, 1981, P4!-57 The staniard stratigraphical divisions are reviewed and reinterpreted as emgimeerimg types in a classification related to emgineerimg requirements. Based on this classification a map of engineering geological zor~tion has been prepared ~t an original scale of i :50000. The gemeral engineering geological characteristics of each zonel unit are described, in relation to emgineering construction.
Core recovery, logging, probing, boring and sampling 815242 FILTERING PROBE INCLINOMETER DATA TO II~ENTIFY CHARACTERISTICS OF SLOPE MOVEMENT Kalkani, E C Rock Mech, VI3, N2, Nov 1980, P57-69 Examines inclinometer readings for syster~tic ard random errors. Presents a mathematical theory to reduce random errors in probe inclinometer data. The reduced magnitudes of displacement compared favourably with surveyed movements. 815243 CAUSES OF SAMPLING DISTURBANCE AND DESIGN OF A NEW SAMPLER FOR SENSITIVE SOILS La Rochelle, P; Sarrailh, J; Tavenas, F Can Geotech J, VI8, NI, Feb 1961, P52-66 Discusses the influence of sampling disturbance on the ~roperties of sensitive clays. Analyses the different factors causing sample disturbance in order to establish the primciples on which a good quality sampler should be designed. Describes a large diameter sampler which uses the overcoring technique to elimlmte suction and to ensure the r e c ~ of large samples without a piston, and evaluates its Perfcrm~e. 8152~ GEOPHYSICAL LOGGING FOR MINERAL EXYLORATION AND DEVELOPMENT Plouffej R D CIM Bull, V7~, ~28, April 1981, P84-92 Describes 4 dcwmhole log~ing techniques: radioactive, electrical, magnetic and mechanical. Discusses for each log the qualitative ani quantitative results, different types of ~robe, uses and l~oblems of the log, ar~ an cIItline of the background knowledge necessary for the full use of the log. 67 refs. 815245 EVALUATION OF SAMPLE QUALITY OF SANDY SOIL OSTAINED BY THE MODIFIED BISHOP SAMPLER Hsmzawz, H; Matsuia, E; Hirose, M SOils FOUnd, V20, N3, Sept 1980, P17-31 D e s c r i b e s t h e saml:~e.r a.nd c o n s ~ i e r e t h e ~rocedure fc~ obtaAnir~ in-situ dry density of a sample. E v a l u a t e s t h e q u a l i t y o f t h e sample based on various laboratory ani field test results. Discusses density change durim@ sampling and treatment ~rocedure, specimen ~reparation a~i transp=rtation.