... and the direct shear box. It is shown that both tests can be used to reveal the sensitivity of a clay soil to a reduction in the adherence by electro-osmosis. Apart from a so-called threshold potential below which little reduction in adherence is observed, the shear box test allows the determination of the shear...

... ABSTRACT: Soil nailing is an earth retaining technique used to stabilise existing slopes and support excavations. The stability post construction can change due to variation in groundwater, resulting in a reduction of effective stress in the soil. Nine centrifuge model experiments were...

... construction method was proposed and successfully executed, allowing reduction of embedded lengths of diaphragm walls and avoiding the need for temporary support. This innovative method distinguishes itself from the original design by using jet-grouting and introduces the following features: smaller...

... that the susceptible soils exist in about 25 percent of the United States and are found in almost every country of the world (Koerner, 1984). displacement fiber reinforcement optimum moisture content expansion strain fiber expansive soil primary swell moisture content specimen reduction free swell...

... reduction stabilisation excavation 10 lc stabilization Thickness Parameter study sheet pile wall horizontal displacement lime-cement column excavation surface settlement passive side deep excavation SOILSTABILISATION WITH LIME-CEMENT COLUMNS A SOLUTION FOR DEEP SHEET PILE WALL IN SOFT CLAY...

... of the Laboratory at Crowthorne and backfilled with either London Clay or Bramshill Sand. Pipeline Corrosion riser corrosion Thickness metals & mining Subsurface Corrosion strength materials and corrosion well integrity steel coupon corrosion product strips reduction Transport Research...

... vibrations. A method for estimation of vibration reduction by such wall barriers has been developed, based on wave penetration theory. 1) The PC wall-piles barrier was found to be capable of reducing vibration level by 10 to 15dB at a point just behind such a barrier and about 5dB at 10m away from it. 2...

.... Reservoir Characterization strength napoli federico ii Safety Condition Upstream Oil & Gas numerical analysis pellegrino reduction consequence cavity local collapse structural geology mechanism roof failure mechanism soft rock construction materials geometric condition shallow cavity...

... canal bank failure slope failure plasticity property canal bank profile redland shire council excavation Canal Estate strength moisture content stability raby bay canal estate Upstream Oil & Gas residual clay clay fill investigation reduction friction angle LONG TERM STABILITY...

... of trying to formalise the use of field measurements in geotechnical engineering, applies already to the first sentence of his work today. geotechnical engineering convergence reduction construction observational method effective angle subsidence invert rib field measurement calibration...

... such as the US EPA's HELP model are widely used to develop cap designs and those commonly adopted are the multi-layer geomembrane, GCL or clay caps (Parker et al, 1993). solid waste management precipitation moisture content monitoring remediation subsoil layer Bacton Road rainfall reduction land...

... and bagasse amended with glucose (0.1g) and/or digester sludge (5 mL). Pure bagasse did not significantly impact pH or metals concentrations (Al, As, Cu, Fe, Mn, Zn) after 180 days. Active microcosms produced near neutral pH conditions (4–6.5) and very high reductions (>95%) in dissolved Cu, Pb and Zn...

... within the kaolinite. This pH reduction increased with the surface area of kaolinite available for reaction. In addition, CWD also neutralised an acid solution prepared in the laboratory. Those samples containing carbonates and alkaline clays actually increased the pH to alkaline levels. Although...

... impeded operation of the ram. This relatively cooled oven has led to less settlement in Battery 2 in its local area (see Figure 2). Figure 2: Settlement of Battery 2 31 May 1996 CAUSE OF SETTLEMENT The principal cause of recorded oven settlement was identified as being a reduction in volume associated...

... Sodium Hydroxide reduction casing and cementing cementitious compound fa 3 unconfined compressive strength cement formulation fly ash sodium chloride optimum lime content cement property Compound longer period unsoaked sample Upstream Oil & Gas lime content sulphate lime lime 1...

... MPa strength fine-grained sedimentary rock shale mudshale elasticity water content Reservoir Characterization Upstream Oil & Gas mudstone moisture content reduction mechanical behavior mudrock compressive strength clayshale uniaxial compressive strength mechanical behaviour...

... carried out into the plausibility of the theory that clay weathering at Montemesola was mainly caused by drying-wetting cycles. These cycles have been simulated in the laboratory on samples of natural grey clay with the aim of evaluating whether they can induce a substantial reduction in specific volume...

... ~ 60 % strength reduction and about 50% reduction of the deformation modulus occurred when the sandstones were fully wetted. Both sandstones possess similar petrographic features: high matrix content (about 30%) and grain-to-grain microstructure with about 60% of contacts being tangent type contact...

... first decreases. However, once the gas pressure falls below a certain value, the permeability starts increasing. At high stresses (deep coal beds), however, the initial permeability reduction is significantly reduced. Also, the increase in permeability, once the gas pressure falls below 450 psi, is much...

... impurity Permeability reduction Upstream Oil & Gas onshore sample weak rock Fluid Dynamics cementation compaction Reservoir Characterization ko test addis chalk high porosity chalk permeability sediment deformation void ratio reduction triaxial test Rock at Great Depth, Maury...