Study of the relation between cracks and the elastic properties of rock mass

机译：裂隙与岩体弹性特性关系的研究

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The crack systems which exist in rocks decide about their physical properties. Especially, theyrnhave an essential influence on velocity of seismic waves propagating through the fractured rock mass. The aim ofrnthe present study was to verify if fracturing is an important factor affecting the elastic properties of rock masses,rnparticularly, generating the anisotropy of dynamic elastic moduli in sedimentary rocks from the southern part ofrnPoland. The seismic anisotropy of the rock mass were measured using P.A.S.I. Seismograph (Mod. 16S24-N).rnThe research was made along precise oriented radial seismic profiles. P-waves and S-waves velocities werernestablished from recorded seismograms and then the values of dynamic elastic moduli were calculated for allrnprofiles. The diagrams of azimuth distribution of elastic moduli showed an anisotropy of elastic properties of therninvestigated rocks.The maximal values of moduli agree with orientation of main crack sets or potential directionsrnof weakening of the rock mass. Seismic methods, enabling the determination of dynamic elastic modulus are arnuseful tool to study the degree of fracturing and rock massifs quality assessment for engineering purposes. Anrnimportant element is the fact that they are relatively inexpensive and fast.

机译：岩石中存在的裂缝系统决定了它们的物理性质。特别是，它们对在裂隙岩体中传播的地震波的速度具有至关重要的影响。本研究的目的是验证压裂是否是影响岩体弹性特性的重要因素，特别是在波兰南部沉积岩中产生动弹性模量各向异性。岩体的地震各向异性是使用P.A.S.I.地震仪（Mod。16S24-N）.rn该研究是沿着精确定向的径向地震剖面进行的。根据记录的地震图建立P波和S波的速度，然后计算所有剖面的动态弹性模量值。弹性模量的方位角分布图显示了被研究岩石的弹性特性的各向异性。模量的最大值与主要裂缝集的方向或岩体的弱化方向一致。能够确定动态弹性模量的地震方法是用于研究压裂程度和岩体质量评估以用于工程目的的有用工具。重要的因素是它们相对便宜且快速。

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《Rock mechanics for resources, energy and environment》|2013年|157-160|共4页
会议地点 Wroclaw(PL)
作者
I. Stan-K?eczek; A.F. Idziak;
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Faculty of Earth Sciences, University of Silesia, Sosnowiec, Poland;

Faculty of Earth Sciences, University of Silesia, Sosnowiec, Poland;

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1. Extracting real-crack properties from non-linear elastic behaviour of rocks: abundance of cracks with dominating normal compliance and rocks with negative Poisson ratios [J] . Zaitsev Vladimir Y., Radostin Andrey V., Pasternak Elena, Nonlinear processes in geophysics . 2017,第3期

机译：从岩石的非线性弹性行为中提取实裂缝特性：以法向柔度为主的大量裂纹和具有负泊松比的岩石
2. Extracting real-crack properties from non-linear elastic behaviour of rocks: abundance of cracks with dominating normal compliance and rocks with negative Poisson ratios [J] . Zaitsev Vladimir Y., Radostin Andrey V., Pasternak Elena, Nonlinear processes in geophysics . 2017,第3期

机译：从岩石的非线性弹性行为提取实际裂纹性质：大量裂缝与负面泊松比率的正常合规性和岩石
3. Extracting real-crack properties from non-linear elastic behaviour of rocks: abundance of cracks with dominating normal compliance and rocks with negative Poisson ratios [J] . Zaitsev Vladimir Y., Radostin Andrey V., Pasternak Elena, Nonlinear Processes in Geophysics Discussions . 2017,第3期

机译：从岩石的非线性弹性行为中提取实际裂纹性质：大量裂缝，主导正常合规性和岩石，虎龙比率
4. Study of the relation between cracks and the elastic properties of rock mass [C] . I. Stan-Kleczek, A.F. Idziak ISRM Internationa Symposium . 2013

机译：裂缝与岩体弹性特性的关系研究
5. Porous grain model and equivalent elastic medium approach for predicting effective elastic properties of sedimentary rocks. [D] . Ruiz, Franklin J. 2009

机译：预测沉积岩有效弹性的多孔颗粒模型和等效弹性介质方法。
6. Numerical Study on Crack Propagation in Brittle Jointed Rock Mass Influenced by Fracture Water Pressure [O] . Yong Li, Hao Zhou, Weishen Zhu, 2015

机译：断裂水压对脆性节理岩体裂纹扩展影响的数值研究
7. Extracting real-crack properties from non-linear elastic behaviour of rocks: abundance of cracks with dominating normal compliance and rocks with negative Poisson ratios [O] . V. Y. Zaitsev, A. V. Radostin, E. Pasternak, 2017

机译：从岩石的非线性弹性行为中提取真实裂缝特征：具有主导正常顺应性的裂缝丰度和具有负泊松比的岩石

Study of the relation between cracks and the elastic properties of rock mass

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