confining pressure

The tensile and compressive tests can be conducted under three dimensional state of stress with confining pressure and a given temperature.

In certain circumstances of confining pressure, with the increase of the moisture content, compressive strength drab monotonically.

Confining pressure does not influence Young's modulus of rock with homogeneous material in macrostructure or with local flaw only.

Confining pressure applied by the reinforcement is a function of the lateral strain of concrete.

Approximate quantitative relations between mechanical index and age and confining pressure are obtained by triaxial compression test.

Finally I poured water into the triaxial cell through the pipeline of confining pressure and carried on the triaxial loading.

when the other conditions are same, the dynamic modulus increase with an increase of confining pressure, cement(lime) ratio or age.

The existence of rockbolt increased the confining pressure for the sidewall of underground opens.

The relation function of rock dilatancy and confining pressure is investigated by theoretical and experimental methods.

The seepage velocity in peak stress decreases with the increase of confining pressure, and indicates obvious linear relationship.

The fractal dimension of sandstone fragment distribution increases with the increasing of confining pressure.

There are obvious differences in the dilatancy processes between the unloading confining pressure tests and triaxial compression tests.

The fractal dimension of sandstone fragment distribution augments with the increasing of confining pressure.

Relationship between fracture toughness and confining pressure was introduced to describe the anchoring effect.

Study on whether pore pressure reaches confining pressure under isotropic and anisotropic consolidation.

The test results show that the relative breakage is correlative to the particle strength and confining pressure.

The confining pressure test is an important and essential test to geostress measurement with hollow inclusion triaxial strain gauge.

Finally, the influence of initial moisture content and confining pressure on shear strength indices of loess is analyzed briefly.

The influence of crack angle and confining pressure condition on the additional lateral deformation of rock was discussed.

The. test results showed. the plasticity of frozen soil is increased obviously with increasing confining pressure.

The propagation angle of the principal fault rupture through soil equals the dilation angle of the soil under the mean confining pressure.

The effects of confining pressure, cyclic stress ratio, frequency of cyclic loading and cyclic numbers are considered.

Limstone reflects yielding plastic character in high confining pressure, in low confining pressure reflects brittleness character.

Finally, the paper researchs rock broken characteristics under confining pressure, and influence analysis of drilling parameters.

A new pressure vessel is developed to simultaneously supply both confining pressure and pore water pressure to rock specimens.

The reduction extent of cohesion is bigger than angle of internal friction after unloading confining pressure.

The experimental results indicate that unloading confining pressure has important effect on the intensity of rock.

Through linear regression, the paper analysis shear strength and the relation of peak strength and confining pressure.

The correlation among axial pressure, confining pressure and balance pressure is derived.

The sensitivity of peak circumferential strain to the confining pressure is higher than that of peak axial strain.

Under the same confining pressure conditions, strength and elastic modulus reduced with temperature increased.

In the meantime, the pore pressure also increased with the increase of confining pressure.

The results show that peak stress of rock specimens increases with confining pressure.

The influences of rock plasticity and confining pressure on rock dilatancy were discussed by using the definition of dilatancy angle.

The larger the confining pressure, the larger the frost heaving strain and stress.

and as confining pressure unloaded to about 80% of initial confining pressure in post-peak unloading confining pressure test, it fails.

The bearing capacity of specimen is constituted by material strength and internal friction, which is related to confining pressure.

The parameter values of rock mass have a direct bearing on its confining pressure.

The effect of unloading confining pressure on cohesion is more obvious than that of angle of internal friction.

But now, there are some errors created in the actual operation, circuit, temperature compensation and the confining pressure formulation.

The study results have a reference value for predicting gas emission and failure in the process of unloading confining pressure.

Experimental study on strength and deformation characteristics of brittle rocks under high confining pressure and hydraulic pressure

the dynamic elastic modulus increases with increasing confining pressure but decreases with increasing temperature;

Deformation Characteristics of Coals From Qinshui Basin Through High-temperature and Confining Pressure Experiment

Experimental study on dynamic properties of concrete with one-dimensional confining pressure

Real-time CT test of meso-damage evolution law of jointed granite on unloading confining pressure

Dynamic biaxial compressive strength and fracture pattern of concrete with constant confining pressure

Effect of Confining Pressure on Distributions of Horizontal and Vertical Stresses around Rectangular Roadway and Broken Rock Zone

Investigation of Confining Pressure-free Perforating Technique

Research Status of Deep Coal and Rock Mass Mechanic Properties under High Temperature and High Confining Pressure

Experimental study on cavitation inception ability of dual-jet nozzle under confining pressure

Triaxial strength and deformation properties of frozen silty clay under low confining pressure

Experimental study on coupled flow through low permeability rock under confining pressure

Rock sample fails as confining pressure unloaded to about 60% of initial confining pressure in pre-peak unloading confining pressure test;

Confining Pressure Effect During Dynamic Propagation in Brittle Rock Material

Research of Rock Triaxial Compression Test with Multilevel Confining Pressure

Laboratory investigation on shear properties of silt under low confining pressure

Experimental Study on Confining Pressure Effect of Rock Damage Under Cyclical Impact Loading

Direct Tensile Experiment of Rock Specimens Under Confining Pressure

Research on Mechanical Parameters Under the Condition of Unloading Confining Pressure in Constant Axial Stress of Coal Rock

Effect of temperature, confining pressure, stain rate, pore fluid pressure to rock rheology

Constitutive Model for Crack-weakend Rock Mass under Confining Pressure Unloading with Crack Interaction Effect

Laboratory Study on the Effect of Temperature and Confining Pressure on Strength of Frozen Soil under Seismic Dynamic Loading

Influence of Confining Pressure on Non-Drainage Shear Strength of Saturated Soft Clay

Analyses on Influence of Unloading Confining-Pressure on Failure Modes of Pillar

Effect of Confining Pressure on Progressive Failure of Squat Specimen (Mine Pillar)

Numerical Tests on Confining Pressure Effect in Rock Failure Process

Real-time CT test of damage failure process of jointed rock sample in unloading confining pressure

the greater the confining pressure, the greater the peak intensity under the same content of cement material;

A confining pressure auto-regulation device for core-flooding test

Drained Behavior of Sand Under Low Confining Pressure

the effect of confining pressure upon permeability;

The increasing failure is more and more obvious in yield phase with the increase in initial confining pressure;

the more cement material is used, the greater the peak intensity under the same confining pressure;