Unloading confining pressure tests could be controlled by stress and deformation.
荷试验包括应力控制和变形控制两种方法。
The larger the confining pressure, the larger the frost heaving strain and stress.
围压越大，冻胀力和冻胀应变越大。
The parameter values of rock mass have a direct bearing on its confining pressure.
工程岩体力学参数的大小与围压有着密切的关系。
The results show that peak stress of rock specimens increases with confining pressure.
研究结果表明，岩样的峰值应力都随着围压的增大而增大。
The peak strength of combined body is approximately linear with the confining pressure.
组合体的峰值强度与围压基本成线性关系。
The existence of rockbolt increased the confining pressure for the sidewall of underground opens.
对于地下洞室边墙来说，锚杆的存在相当于增加了一部分围压。
The sensitivity of residual strength on the confining pressure is higher than that of peak strength.
岩石残余强度对围压的敏感性显著高于峰值强度。
To solve this problem we developed a high negative pressure and confining pressure-free perforating process.
无围压射孔技术就是研究在高负压甚至无围压条件下实现射孔完井。
The fractal dimension of sandstone fragment distribution augments with the increasing of confining pressure.
随着围压的增加，砂岩破碎碎屑的分维增大。
These factors considered were asphalt content, confining pressure, temperature and frequency of dynamic force.
本文中所考虑的因素有沥青含量、应力状态、温度及动力的频率。
Relationship between fracture toughness and confining pressure was introduced to describe the anchoring effect.
引入断裂韧度和围压的关系来反映锚杆的对围岩的加固作用。
The increasing failure is more and more obvious in yield phase with the increase in initial confining pressure;
随初始围压的增大，屈服阶段卸围压时试件加速破坏的趋势更加明显；
The effect of unloading confining pressure on cohesion is more obvious than that of angle of internal friction.
卸荷对黏聚力的影响比对内摩擦角的影响大。
The test results show that the relative breakage is correlative to the particle strength and confining pressure.
结果表明，试验中相对破碎率同颗粒强度和围压力的相对大小直接相关。
The. test results showed. the plasticity of frozen soil is increased obviously with increasing confining pressure.
试验结果表明，围压的增大明显增强了冻土的塑性性能；
The experimental results indicate that unloading confining pressure has important effect on the intensity of rock.
研究结果表明：卸围压对岩石的强度影响很大。
When DTH drilling in high confining pressure, its border condition has changed. So new software need to be developed.
潜孔锤在高围压条件下钻进，边界条件发生了变化，需要开发新的软件。
The relation function of rock dilatancy and confining pressure is investigated by theoretical and experimental methods.
通过理论推导和试验分析研究岩石扩容与围压的关系。
The influence of crack angle and confining pressure condition on the additional lateral deformation of rock was discussed.
研究了不同裂隙角度和不同围压条件下岩石附加侧向变形量。
However, the dissipation model of excess pore water pressure after liquefaction is only affected by the confining pressure.
相对密度仅对液化后的本构模型有较大的影响，而对孔压消散模型基本没有影响。
Behavior of the strain softening and failure mechanism on different rocks transforms with the increase of confining pressure.
不同岩性岩石的应变软化性态和破坏机制也均随侧压的增大而发生转化。
The uniaxial and triaxial creep tests of gypsum breccias are made and creep curves under different confining pressure are got.
对石膏角砾岩进行了单轴、三轴蠕变试验，获得了不同围压下的蠕变曲线。
A new pressure vessel is developed to simultaneously supply both confining pressure and pore water pressure to rock specimens.
为此，设计和制造了一个可以对岩石试样同时加围压和孔隙水压的新型压力容器。
The seepage velocity in peak stress decreases with the increase of confining pressure, and indicates obvious linear relationship.
煤样的峰值渗流速度随围压的增加而减小，呈现较明显的线性关系。
Limstone reflects yielding plastic character in high confining pressure, in low confining pressure reflects brittleness character.
白云岩在较高围压下表现屈服塑性，在低围压下表现脆性破坏。
Approximate quantitative relations between mechanical index and age and confining pressure are obtained by triaxial compression test.
并由三轴试验得出各力学性质指标与龄期和围压的近似定量关系。
The propagation angle of the principal fault rupture through soil equals the dilation angle of the soil under the mean confining pressure.
主裂缝的总体传播方向与断层平面的夹角约等于土体在土层平均围压下的剪胀角。
The propagation angle of the principal fault rupture through soil equals the dilation angle of the soil under the mean confining pressure.
主裂缝的总体传播方向与断层平面的夹角约等于土体在土层平均围压下的剪胀角。
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