dilatancy相关论文
As a common phenomenon in granular flow,grain segregation plays a great role in affecting the behavior of granular soil ......
In this work,a novel constitutive model is developed within the framework of fractional plasticity to delineate the coup......
The invisibility of fracture network evolution in the rock under triaxial compression seriously restricts the correlatio......
Development and application of an interface constitutive model for fully grouted rock-bolts and cabl
This paper proposes a new interface constitutive model for fully grouted rock-bolts and cable-bolts based on pull-out te......
Grain crushing in geoscience materials–Key issues on crushing response, measurement and modeling:Rev
Grain crushing is commonly encountered in deep foundation engineering, high rockfill dam engineering, railway engineerin......
Development and application of an interface constitutive model for fully grouted rock-bolts and cabl
This paper proposes a new interface constitutive model for fully grouted rock-bolts and cable-bolts based on pull-out te......
This paper focuses on the presence of nodules of insoluble materials within salt specimens, and their effect on the volu......
Strength and dilatancy behaviors of deep sands in Shanghai with a focus on grain size and shape effe
With rapid development of infrastructures like tunnels and open excavations in Shanghai, investigations on deeper soils ......
针对规则的椭圆形颗粒、圆形和履带形颗粒以及不规则形状颗粒组成的土体进行了平面力学分析,推导了应力比和塑性应变增量比表达式,......
粗粒土具有明显的剪胀剪缩性,为非虎克材料。对8种颗粒材料进行了11组三轴试验,将体应变分为球应力和偏应力引起的体应变两部分,并......
An elasto-plastic constitutive model incorporating strain softening and dilatancy for interface thin
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New double yield surface model for coarse granular materials incorporating nonlinear unified failure
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月球的低重力环境对月面浅层月壤力学特性的影响很大。利用清华大学取自吉林省靖宇县境内的火山灰岩研制出的模拟月壤（QH-E），对GCTS公......
地下储气库围岩长期处于复杂疲劳应力状态下,盐岩三轴循环荷载下的变形规律对储气库稳定性分析有参考价值。对8个盐岩试块进行了不......
高应力、高水压卸荷条件下岩石的非连续性微缺陷演化过程研究对揭示隧道围岩裂纹的起裂孕育、碎胀裂化和峰值破坏,分析围岩稳定性......
以土的临界状态和边界面塑性理论为基础,引入状态参数,考虑砂土的剪胀特性,提出一个新型三维多重机构边界面模型。模型将复杂的宏......
针对粗粒料的剪胀特性和强度非线性,在经典弹塑性理论框架内,建立了一个基于细观结构的粗粒料弹塑性本构模型。模型采用基于颗粒材......
为了探讨基质吸力和净围压对黄土的变形–强度及卸载–再加载模量的影响,用非饱和土三轴仪对原状Q3黄土及其重塑土共做了3组27个试......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Anisotropic modelling of Opalinus Clay behaviour: From triaxial tests to gallery excavation applicat
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
New double yield surface model for coarse granular materials incorporating nonlinear unified failure
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On the basis of plasticity and fracture mechanics for quasi- brittle materials, this article presented a constitutive mo......
土体剪胀性对土坡稳定性分析的结果有较大的影响,而在传统的极限平衡法中无法考虑土体的剪胀性.以Toyoura砂为例,通过基于材料状态......
This paper focuses on the presence of nodules of insoluble materials within salt specimens,and their effect on the volum......
为揭示粮仓建设和粮食运输途中粮堆的强度与剪胀特性,开展了在垂直压力为25~200kPa、含水率分别为8.41%、10.59%、13.88%和16.25%......
可燃冰是一种新型清洁能源,广泛分布于深海土体和常年冻土中,对其开采需要深入认识含可燃冰土体的力学特性。该文提出了一种胶结型......
为研究层状岩体在三轴加载下的扩容及塑性应变特性,选取具有典型层理构造的千枚岩为研究对象,制作倾角为0°、30°、45......
各向异性是岩土材料普遍具有的性质,而横观各向同性是岩土各向异性最通常的表现形式,因此在真三轴试验中,不同加荷方向下的大主应......
Impermeable bentonite or its mixtures have been proposed as candidate materials to be used in the geotechnical disposal ......
Development and verification of large deformation model considering stiffness deterioration and shea
The existing constitutive models of rock with strain softening cannot successfully reflect the damageinduced anisotropy ......
It is important to study the dilatancy property of water-saturated rock for understanding the engineering behavior of lo......
通过理论推导和试验分析研究岩石扩容与围压的关系。应力状态和围压对岩石扩容影响显著。描述岩石扩容的主要参数为扩容角和扩容指......
在考虑材料剪胀性和塑性区弹性变形的情况下, 研究了塑性区中弹、塑性变形情况以及对应力场、位移场的影响. 研究表明剪胀角ψ和内......
建立能够反映土的变形和强度特性应力路径依存性的本构模型,首先需要解决土剪胀规律的应力路径依存性问题.对黏土和砂土剪胀性的应......
基于能量守恒原理和Rowe提出的最小能比原理从细观角度建立了考虑颗粒破碎的剪胀方程，并对不同围压下颗粒破碎耗能因子在试验过程中......
从动态的观点介绍了大地水准的物理意义。用数值分析方法计算了常见的几种断层位错导致的大地水准面局部变化的分布图像，并着 断层......
放弃了传统的围岩体积不变假设，采用非相关联塑性流动法则模拟软岩的塑性扩容特性，推导了一个新的塑性区位移理论解，并以该位移理论解......
介绍了岩石扩容现象与超声横波特征参数相互关系相关专业领域研究的现状及其应用.在用横波速度最大值(vsmax)来分析岩石微裂纹初始......
利用振幅谱比法对砂岩扩容过程中超声波衰减的实验结果进行分析表明：岩石存在裂纹稳定性传播与裂纹的非稳定性传播和宏观破裂过程；在......
为了研究不同应力路径下的粉土变形特性,采用粉土试样进行了一系列不同应力路径的室内三轴固结排水试验,研究K 0固结状态下不同应......
为了得出粮仓设计中粮堆强度和剪胀特性等关键指标,通过直剪试验研究粮堆剪切破坏面上,在竖向压力50～300 k Pa、剪切速率0.78～2.33 m......
Based on the framework of critical state soil mechanics,a subloading surface plastic model for sand, being applicable to......
Numerical simulation using finite differential code was conducted for the single line railway and four-lane road shallow......
在许多地下巷道工程中，围岩巨大的变形严重影响巷道稳定性。这种大变形如果仅是应力重分布引起的体积膨胀则称为岩石扩容。岩石扩容......
Explicit finite difference code was used to calculate the stability factors of shallow tunnels without internal support ......
使用非饱和土三轴试验仪，对击实非饱和粉土进行吸力控制的三轴排气排水剪切试验，得到不同试验条件下剪切时的应力应变关系和吸排水情......
This paper presents a theoretical study on time-dependent dilatancy behaviors for brittle rocks. The theory employs a we......
Anisotropic modelling of Opalinus Clay behaviour: From triaxial tests to gallery excavation applicat
Deep repository in geological formations is the preferential solution considered in many countries to manage high-level ......
