Vibrating wire strain gauges in driving concrete piles — evaluation trials

Vibrating wire strain gauges in driving concrete piles — evaluation trials

56A 813146 ANALYSIS OF FOUNDATIONS ON REINFORCED SOIL Brown, B S; Poulos, H G University of Sydney, School of Civil Emgineering, research repart R377...

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813146 ANALYSIS OF FOUNDATIONS ON REINFORCED SOIL Brown, B S; Poulos, H G University of Sydney, School of Civil Emgineering, research repart R377, Oct 1980, 23P Describes a finite element model of reinforced earth amd its application to the effect of reinfercement on the load-settlement behaviour of a strip foundation on a c-phi soil, and the behavlour of reinforced soil over a cavity e r a very soft zone. 813147 BEHAVIOUR OF FOOTINGS RESTING ON A NON-HOMOGENEOUS SOIL MASS WITH A CRUST PART i - STRIP FOOTINGS. PART 2 - CIRCULAR FOOTINGs Rowe, R K; Booker, J R University of Sydney, School of Civil Er~ineering, research reports R374, Sept 1980, 50P (Part i), R375, Sept 1980, 52P

(P~t 2) Outlines a finite layer method of analysis and applies it to strip and circular footings resting on a soil consisting of a weathered crust overlying a main deposit. The effects of layer depth, crust depth and the rate of variation of stiffness within the crust are examined. The results are presented in the form of influence charts for hand calculation. 813148 SOME FLASTICITY SOLUTIONS RELEVANT TO THE BEARING CAPACITY OF ROCK AND FISSURED CLAY

(JOHN J ~

~NORI~ U~mE)

Davis, E H University of Sydney, School Of Civil E~gineering research relx~t RB70, July 1980,

34P Discusses the application of plasticity theory to rock and soil materials with seml-brittle or straln-softening bahaviour and the existence of Joints, fissures and other defects. 813149 THEORETICAL STUDY OF PILE/ROCK SOCKET BEHAVIOUR Rowe, R E; Palls, P J N University of Sydney, School of Civil Englneeriug research report R368, July 1980,

~P Discusses a finite element analysis incorporating a pointwise strain-softeniug modal of the interface behavlour, cca-responding to the situation where there is a break in the cement bond between the concrete and rock once the peak shear strength is reached at that point. Results of the analysis are presented in the fc~m of charts to estimate the pile head settlement, load transfer to the pile base and the shear mobilisation along the socket o

Slopes 813150 TO ~ A M

OR NOT TO CHUNAM - INTERACTION OF POLITICS AND SLOPE STABILITY Wood, D M Ground Ergng, VI4, N1, Jan 1981, P28-30

Discusses the stability and failure of soil slopes in Hong Kong and how engineering works are influenced by cc~merical and political factors. (Chunam is an unsightly, thot~h cheap amd effective, mixture of soil, lime and cement which may be applied like plaster to a prepared soil slope).

813151 ENERGRTICs OF AN ABLATING HEADSCARP IN ~ FROST Pufahl, D E; Marge~stern, N R Can Geotech J, Vl7, N4, Nov 1980, P487-497 Discusses the energy balance of the ablation found to occur in bimodal-flow type of landslides in Arctic regions. 813152 NEW APPROACH TO THE STABILITY ANALYSIS OF THAWINS SLOPES. TECHNICAL NOTE ValleJo, L E Can Geotech J, VI7, ~ , Nov 1960, P607-612 A new approach to the stability analysis of thawing slopes at shallow depths, taking into consideration their structure (this beimg a mixture of hard crumbs of soil and a fluid matrix), is Iresented. The new aplroach explains shallow mass movements such as skin flows and tongues of bimodal flows, which usually take place on very low slope inclinations independently of excess pore water Iressures Qr increased water content in the active layer, which are necessary condltlons in the methods available to date to explain these movements. Auth. 813153 LONG-TERM STABILITY OF A CUTTING SLOPE IN AN OVERCONSOLIDATED SENSITIVE CLAY Silvestri, V Can Geotech J, V17, N3, Aug 1980, P337-351 Presents an analysis of two slope failures that occurred in a sensitive clay deposit in Quebec ~rovince, Canada. 813154 PROBABILISTIC SEISMIC STABILITY ANALYSIS - A CASE STUDY Athanasiou-Grivas, D Can Geotech J, V17, N3, Aug 1980, P352-360 A Ireviously developed model is used to provide a Irobabilistic seismic stability analysis far a natural slope located near New York. Three types of possible earthquake sources ere investigated. 813155 EXCAVATION SLOPE STABILITY RELATED TO PORE-WATER PRESSURE VARIATIONS DURING PILING Crooks, J H A; Matyas, E L; McKay, H M Can Geotech J, V17, N2, May 1980, P225-235 High excess pore water pressures were measured within a confined stratum of loose silt underlying an excavation slope during pile-drivlng operations at the slope toe. Results of effective stress slope stability analysis for various stages of construction using measured shear strength parameters and pare water pressures are presented and discussed. Design modifications, which included staged excavation and the construction of relief wells, are described. 813156 ANATOMY OF LANDSLIDEs. TECHNICAL NOTE Cruden, D M Can Oeoteeh J, VI7, N2, May 1980, P295-300 Discusses how kncwlegdge of the topography and density of the displaced mass before and after sliding can lead to estimates of the coefficient of friction of the sliding mass. 813157 SGME OBSERVATIONS ON A FLOW SLIDE IN THE UPPER V~TT~Y OF ESARO (IN ITALIAN) Allevato, G; Dente, G; Esposito, L Riv Ital Geotec, VI6, N2, April-June 1980, P172-180