Considering the relationship of the attenuation of wave and damage energy dissipation, a new rock damage model is developed for rock blasting.
在考虑岩石冲击损伤过程的声波衰减规律及其与能量耗散率关系的基础上,建立新的岩石爆破损伤模型。
This paper also presents several rock damage model reflecting the softening and joint behaviour of rock masses in addition to the introduction of meso and statistical models.
文内除了列举几种反映岩体软化及节理裂隙性质的损伤模型外,还介绍了细观与统计损伤模型。
The rock damage model and the damage-coupling model suited to analyze the whole process of water jet breaking rock were established with continuum damage mechanics and micro damage mechanics.
运用连续损伤力学和细观损伤力学理论,建立了适用于水射流破岩全过程分析的岩石损伤模型以及宏细观损伤的耦合模式。
Then the statistical damage constitutive model is developed for saturated and unsaturated rock based on the mixture theory.
在混合物理论基础上,建立了饱和、非饱和岩石损伤软化统计本构模型。
By introducing a damage variable expressed by the equivalent shear stiffness, a dynamic shearing damage constitutive model of rock is established including three phases.
定义了用等效剪切刚度表示的损伤变量,建立了一个分三阶段表述的岩石动态剪切损伤本构模型。
Based on random distribution of interior defect in rock, a statistical damage constitutive model for rock is developed by using the continuous strength theory and statistical theory.
结合连续强度理论和统计理论,从岩石内部缺陷分布的随机性出发,建立了岩石统计损伤本构模型。
In this paper, for the joint rock mass with medial size and in-group crack, parameter identification of its geometrical damage model is studied by back analysis of in-situ measured displacement.
对包含中等尺寸的成组分布裂隙的岩体,采用岩体几何损伤本构模型,用监测位移反馈分析法同时辨识岩体弹性模量、地应力及损伤参数。
Based on the existing damage model of rock blasting and the theory of rock damage and fracture, a new damage model for rock blasting has been founded.
在分析现有岩石爆破损伤模型和岩石爆破损伤断裂理论的基础上,建立了新的岩石爆破损伤模型。
And with the introduction of the Modulus of Elasticity from Budiansky method, the general damage model of rock blasting is established in the paper.
引入了自洽法有效弹性模量,建立了爆破作用的岩石损伤的全过程模型。
Giving an imitation of traditional plastic theory , a damage surface model on brittle rock about temperature in stress-space is introduced and the evolutionary law is discussed qualitatively.
参照经典塑性力学的屈服面理论,引入了温度作用下应力空间中脆性岩石的损伤面模型,定性地讨论了荷载和温度影响下损伤面时的演化规律。
The new parameters for describing damage and its evolution in rock are explored to construct damage model of rock fragmentation by blasting.
探索岩石动态损伤参量及其演化表征方式以构造岩石爆破损伤模型。
In mining engineering, strata models are often simulated by similar material simulation model, rock bending deformation and fracture damage is the serious problem.
而在采矿工程中,相似材料模拟的往往是层状模型,岩层的弯曲变形和断裂破坏是关键问题。
The paper presents a damage localization bifurcation model for rock concrete like materials.
针对岩石混凝土类材料,提出了损伤局部化分叉模型。
The strain gradient enhanced damage model based on strain gradient theory and continuum damage mechanics is established and applied to forecasting the localized damage in rock material.
本文提出基于应变梯度的损伤模型,并用于材料局部化损伤模拟预测中。
Proved by the test data, the precision of constitutive model with brittle, ductile failure is higher, which can provide accurately the basis for rock damage assessment.
经实测数据与所建模型对比验证,延性破坏、脆性破坏模式本构模型精度较高,可为岩石损伤评估提供依据。
The sliding crack model has been widely applied in the damage and fracture analysis of the rock-like materials.
滑动裂纹模型被广泛应用于岩石类材料压剪断裂分析及损伤分析。
According to the damage mechanics, the dynamic damage constitutive model of rock mass containing original damages is proposed.
根据损伤力学理论,提出了含初始损伤岩体动态损伤本构模型。
Based on simulation theory, a geologic mechanics model is established and used for research on deformation and damage mechanism of anti-dip layered rock slop.
根据相似理论建立地质力学模型,研究反倾层状边坡岩体的变形破坏机制。
A linear elastic damage model based on finite element method at mesoscopic level was applied to investigate the three-dimensional failure process of rock subjected to various stress loadings.
采用细观弹性损伤模型和有限元计算方法实现岩石三维破裂过程的数值模拟。
Thermal-mechanical-chemical coupling damage model of brittle rock is established based on damage mechanics.
考虑化学反应对温度的影响,通过温度作用下的弹性模量,提出了岩石温度损伤模型。
This numerical method used simulating damage and fragmentation phenomena of rock-like materials is presented on the basis of discrete element method (DEM) and lattice model.
梁–颗粒模型是在离散单元法基础上,结合有限单元法提出的用于模拟岩石类材料破坏过程的数值模型。
It showed that the constitutive model could be used to simulate mechanical characteristics of rock salt such as creep and damage properties.
其结果表明,此模型能够较好地应用于盐岩的模拟分析。
And based on the aim of the application of engineering, the pre peak rock 3 parts damage evolution equation and constitutive model are given.
从工程应用出发,给出了峰前分段岩石损伤演化方程及本构关系。
The relation between stress-strain and density variation of rock crack has been obtained through the meso-damage theory and damage statistics model.
把细观损伤理论和宏观统计损伤模型结合,建立应力–应变与微裂纹密度变化的关系;
The relation between stress-strain and density variation of rock crack has been obtained through the meso-damage theory and damage statistics model.
把细观损伤理论和宏观统计损伤模型结合,建立应力–应变与微裂纹密度变化的关系;
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