Rock slope engineering. Textbook

Rock slope engineering. Textbook

~SiA Foundations 1476 CROWSER, JC SHANNON AND WILSON, SEATTLE,WASH.USA SCHUSTER, EL UNYV. IDAHO, MOSCOW, USA A ease history for a mat-supported silo ...

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Foundations 1476 CROWSER, JC SHANNON AND WILSON, SEATTLE,WASH.USA SCHUSTER, EL UNYV. IDAHO, MOSCOW, USA A ease history for a mat-supported silo group. Proc. llth Ann.Symposium Engng.Geol. and Soils Engng, Idsho, 1973. IIF,6T,10R. IDAHO D E ~ . HIGHWAYS, NOV. 1973, P73-90. Prediction of settlement using parameters obtained from soil samples has been computed by elastic and consolidation theory. Settlements analysed by elastic theory utilized a stress-dependent modulus of elasticity evaluated from laboratory test results. Settlements computed by one-dimensional consolidation theory were based on distributions of stress within the soil subgrade. These stress distributions were obtained by the displacement finite element method and by Boussinesq's theory. In addition, settlement values have been calculated using Standard Penetration data. 1477 ARNOLD, AB W.A.WAHI~ AND ASSOC.PITTSBURGH, USA HANEGAN, GL CALIF. DEPT.WATER RESOUR. CASTAIC, USA Rebound and foundation settlement at Caataic Dam, Los Angeles Cotu~y, California.~F, iT,IR. BULL. ASSOC. ENGNG. GEOL .VII, NI, APR. 1974, PI5- 27. Very large and deep excavations were required for the construction of Castaic Dam, spillway and high intake tower. It was expected that the removal and replacement of the large vol~mms of material would cause some foundation problems associated with rebound and settlement. Thirty-four measurement points were installed in the foundation to evaluate the significance of rebound and settlement on the stability of the foundation, the integrity of the grout curtain and the effect on concrete structures; A maximum of 0.6 foot of rebound was recorded for an excavation depth of approximately 135 feet. A maximum of 2 feet of fotmdation settlement was measured under the embamkn~nt. The rebound and settlement of the Castaic formation were more closely related to depth and shape of the excavation and height of embankment than to ar~ obvious geologic features;Auth. 1478 GORBUNOV-FOSADOV, MI SCI. RES. INST. FOUNDAT .MOSCOW, SU ZARETSKII, YU. K SCI. RES. INST. FOUNDAT .MOSCOW~ SU Advances in the theory of foundation design in the USSR and abroad.-A review of exlsti~g theories. SOIL MECH.FOUNDATION E~G.VIO, E~,JULY-AUG.1973,P246-251. 1479 KEANIN, RE Experience in the design and construction of pile foundations composed of r e i n f ~ c e d concrete hollow circular sectional piles and shell piles. 2F, IT. SOIL MECH.FOUNDATION ENG.VIO, N4,JULY-AUG.I~(3,P267-271. The following conclusions and recommendations have been reached after a period of exlx~ience in driving r-c hollow circular piles and shell piles; i. The actual description of the piles from the design locations in place do not exceed 50-150 me, which makes it possible to design two-pile clusters under the c o l ~ ; 2. In the case of weak soils of variable T~Ickness it is desirable to have on the site an extended range of l e r ~ s of sectior~l pile umits~ so that the necessary pile l e r ~ can be selected during drivir~j 3. The choice of driving technique should be based on the experience in the initial period of constrnctior~ 4. If driving is assisted by fc~ci~g a Jet of water through the internal cavity of pile, steps must be taken to ene~re that the water and ~md can escape freely from the cavity, since otherwise the walls of the pile m~y be damaged by water hammer.

This is a handbook which deals with the geotechnical problems of rock slope design. It has been written for the mining or civil engineer who is not a specialist in rock or soil mechanics and it contains many worked examples to assist the reader in relating the techniques described to his own slope problems. Design charts which provide a rapid check on the stability of both rock and soil slopes are presented together with more detailed analytical methods for the study of critical slope l~roblems. Methods for the collection snd interpretation of geological and groundwater information are discussed and tests for the determination of relevsnt mechanical properties of rock are described. More than 200 selected references to geotechnical literature are given for those who wish to study particular aspects of the subject in greater detail. There are ten chapters as follows : 1. Economic and planning considerations; 2. Basic mechanics of slope failure; 3. Graphical presentation of geological data; 4. Geological data collection; 5. Shear strength determination; 6. Groundwater flow, permeability and pressure; 7. Plane failure; 8. Wedge failure; 9. Cir. cular failure; and lO. Miscellaneous topics (including drainage of slopes, controlled blasting and control of rock falls ).

Slopes 1481 KEENER, Q TUDOR E~NG.CO.BOL~., IDAHO,USA B~/~,JR OREGON S T ~ E UNIV.C0~WTT!S,USA An investigation of the feasibility of a tieback slope design method based on the analyses of natural slopes. Proc; llth Ann.Symposium Er~g.Geol. and Soils Emgr~. Idaho, 1973.14F, 2T, 12R. IDAHO DEPT.HIGHWAYS~ NOV.1973,PI31-155 • The purpose of this investigstion was to determine if a better c~tbamk design technique m~Sht be evolved from an analysis of nat~al slopes, cuts made into those slopes, and failures that occurred because of cutting. Field data was collected on 79 slides along f ~ e s t access roads cut in residual volcanic soils of the Umpqtm Nstiomal Forest located in the Wester~ Cascades of Oregon. This data was then compared with a theory developed for failures in cuts made into natural slopes of such residual soils. The theory was substantiated by the field data and was used to develop design curves which could, in turn, be used to predict the percentage that failures may be reduced from those occ~rimg at present. Auth.

Base courses and p a v e m e n t s of roads, railways and airfields 1482 GADBOIS, IJ WASH. STATE D E ~ . HIGHWAYS, USA Big lake fill. Proc. ll%h Ara%. Symposium E r ~ . G e o l . snl Soils E~gr~. Idaho, 1973. IOF. IDAHO DEPT .HIGHWAYS, EKY~.1973, P37- 54 • A case history is prese~ed of the use o£ an overloaded dlspla2ement fill design f ~ the m ~ - b o u r d crossing of about one third of a mile of ~ a m p by a six lane highway. The fill was placed by end d~upir~ from s~rehsrge height l~ogressively across the soft ar~ deep r~rm~]ly lOaded silt sediments. Settlement data, both observed and predicted ere l~esented.

Construction methods See also abstract: 1327. 1483 GERASIMOV, V KONDYREV, K Sinking piles into frozen ground. In Russian. ~IROITEL, Ng, 1973, P24.

1480 HOEK, E IMP~. CO~Y~.SCI. T E L l . L O N D O N , GB BRAY, JW IMPER .COLL. SCI. TECHNOL. LONDON, GB Rock slope e~ineerimg. Textbook, 125F,Tabls,227R. INkY .MIN.M~TALL. LONDON, APR. 1974, 309P.