fractured rock
破碎巖石
2026-03-21 08:09 浏览次数 14
破碎巖石
the mainly difficulties for simulating fluid flow in fractured rock are the characterization of that heterogeneities.
模拟裂隙巖体渗流的主要困难在于描述这种非均质性。
for the deformation of fractured rock mass, crack density parameter and crack friction coefficient are the most important parameters.
随着裂隙密度参数的增加,变形模量有减小的趋势;随着裂隙摩擦系数的增加,变形模量有逐渐增加的趋势。
based on the principle of fluid diffusion energy superposition, an analytical expression formula of seepage tensor in the fractured rock mass medium is established.
本文从流体扩散能量迭加原理出发,建立了裂隙巖体介质的渗流张量解析表达式。
but what’s to keep the buoyant gas from working its way up through fractured rock and reentering the atmosphere?
要避免这种活性气体从断裂的巖石逃逸重返大气层又该怎么办呢?
the investigation of the representative elementary volume(rev) of fractured rock mass is a fundamental problem in rock mechanics.
裂隙巖体表征单元体(rev)研究是巖体力学的一个基本问题。
aimed at densely fractured rock masses, the paper sets up the saturated-unsaturated seepage flow mathematic model for atomized rain infiltration using equivalent continuum theory.
针对裂隙密度较大的巖体,利用等效连续介质理论,建立了裂隙巖体在雾化雨入渗下的饱和-非饱和渗流数学模型。根据雾化雨模型试验,选定雾化雨的强度。
first, the characteristics of seepage of fractured rock mass are systematically summarized and the interaction effect between the seepage field and stress field of the fractured rock mass is obtained.
本文首先系统总结了裂隙巖体渗流的特点,裂隙巖体渗流场和地应力场的相互作用;
and the modified initial flow method is adopted to deal with the free surface of unconfined seepage. finally, the above method is applied to the fractured rock bank slope of a reservoir.
对建立的耦合模型采用四自由度全耦合法结合有限元数值方法直接求解,对无压流中自由面的处理则采用固定网格法中的改进初流量法。
in this paper, seepage flow in fractured rock mass is regarded as flow in fracture network, and nuclides are migrated by the flow in fracture network.
将裂隙巖体渗流视为裂隙网络流,核素仅在巖体裂隙网络流中迁移;
both the fissure connectivity and density are the important influencing factors of seepage characteristics in fractured rock mass.
裂隙的连通性和密度是影响巖体渗流特性的重要因素。
the available research directions are put forward for the future research on hydro-mechanical characteristics of fractured rock masses.
分析结论也为今后的巖体裂隙渗流特性的试验研究提供了有益的方向。
the result shows that the ground penetrating radar can be used to detect the fractured rock zone in mine roadway and the result can be used to design anchor support in the roadway .
结果表明,采用地质雷达探测巷道围巖松动圈是可行的,可以用于指导巷道围巖的锚桿支护设计。
there is essential difference between fluid flow in fractured rock and that in conventional porous media; it is presented as the structure heterogeneities over a broad range of scales.
裂隙巖体中的渗流和传统的多孔介质渗流在机理上存在本质的差别,这种差别主要表现为裂隙巖体在各种尺度上存在的非均质性。
furthermore, various conceptual fluid flow models are presented to reflect the different flow features of both minor and major fractures identified in fractured rock masses.
同时,局部小裂隙、区域大裂隙应当区别对待,以便据其所起的作用及水力特征,建立裂隙化巖体相应的流体渗流模型。
the properties of fissure structure in a single fractured rock mass are described in the paper. the calculating and measuring methods of equivalent fissure openness are put forward.
该文描述了单裂隙巖体的裂隙面结构性状,提出了等效裂隙开度的计算方法和测量方法。
a new three dimensional model for the analysis of transient ground water now in a stochastic fracture network of a fractured rock mass is presented in this paper.
介绍了在巖体三维随机裂隙网络中进行非稳定地下水渗流分析的数学模型和方法。
this method is not affected by electric-magnetic disturbance, and can be used to obtain reliable data in fractured rock masses.
不受电磁效应干扰,数据可靠,且可用于破碎巖体中测量,具有广阔的应用前景。
therefore, the importance of the seepage-normal stress coupling analysis in fractured rock masses is emphasized.
研究结果表明在裂隙巖体中进行渗流与应力耦合分析的重要性。
with equivalent hydraulic model developed, elastic modulus em of fractured rock may be modified with fracture properties.
在物理力学参数的确定中,考虑了裂隙、溶洞对巖体弹性模量的影响。
the spatial variability in permeability plays an important role in the coupled hydro-mechanical processes of the fractured rock mass and induces a discontinuous distribution of principal stresses.
渗透系数的空间变异性使得隧道开挖后围巖应力有明显的非连续性,对裂隙介质的耦合过程起着重要作用。
in order to get the real fractured rock permeability, different measurement methods should be combined.
不同测量方法需要结合起来才能得到裂隙巖体真实的渗透系数。
several conditions of the dewatering hole on the fractured rock dam foundation are analyzed by means of the seepage principle of rock mass fracture network.
采用巖体裂隙网络渗流原理,对裂隙巖体坝基中设置排水孔的各种情况进行了分析。
zhang zhanrong. study on deformation properties of fractured rock mass. wuhan: institute of rock and soil mechanics, chinese academy of sciences, 2010.
张占荣。裂隙巖体变形特性研究 。武汉:中国科学院武汉巖土力学研究所,2010。
mathematical models of seepage in fractured rock can be classified into: continuum seepage model, discrete fracture network seepage model and continuum-discrete coupling seepage model.
当前裂隙巖体地下水渗流数值模型主要有三种:等效连续介质模型、离散裂隙网络模型和裂隙-孔隙双重介质模型。
the water-rock coupling effect of the fractured rock masses in the high pressure and complicated loading is a very complicated process.
裂隙巖体在高水压和高复杂应力路径下的水巖耦合作用是一个非常复杂的过程。
from the results of tests for determining the complete stress-strain curve, the parameters in the constitutive equations of fractured rock can de obtained, thus the constitutive equations are given.
根据巖石应力-应变全过程的试验结果,可以求出本构方程中的有关参数。
based on the principle of energy accumulation of liquid diffusion , the permeable tensor mathematic expression of fractured rock mass is established.
利用流体扩散能量叠加原理,建立了裂隙巖体介质的渗透张量数学表达式。
but grouting theory has the slow progress, especially in fractured rock masses, the level of research is very backward.
与此不对称的是注浆理论特别是裂隙巖体注浆理论却进展缓慢,其研究水平相当落后。