Recognition of rock anisotropy using integrated seismic approach-A case in Strzegom and Podlesna,Poland  

作　　者：Iwona Stan-Kłeczek Artur Marciniak 

机构地区：[1]University of Silesia,Faculty of Natural Sciences,Sosnowiec,Poland [2]Institute of Geophysics of Polish Academy of Sciences,Warsaw,Poland

出　　处：《Journal of Rock Mechanics and Geotechnical Engineering》2023年第7期1759-1767,共9页岩石力学与岩土工程学报（英文版）

基　　金：funded by the National Science Centre,Poland(NCN)(Grant No.2020/37/N/ST10/01486).

摘　　要：This paper presents the integration of seismic refraction and multichannel analysis of surface wave(MASW)measurements to investigate the anisotropy of P-and S-wave velocities.Additionally,synthetic forward modelling is presented as a tool for supporting seismic anisotropy studies.The geophysical measurements of cracks allowed to recognise the fracturing of a granite rock mass in a Paleozoic granite quarry(Strzegom,Poland)and a dolomite rock mass in a Triassic dolomite quarry(Podlesna,Poland).Application of the forward modelling supports the interpretation of seismic methods,simplifying data processing and verifying the final results based on data from difficult seismic conditions.As a result of direct measurements,two crack systems were determined in granite rock mass:NNE-SSW and NNW-SSE,and two in dolomite rock mass:NNE-SSW and NW-SE.Furthermore,the numerical results show the relationship between the highest values of P-and S-wave velocities and separated crack systems which allowed an unequivocal interpretation of the direction of stress,resulting in the deformations.The obtained information is promising to be helpful in mining exploration for optimising excavation works.

关 键 词：FRACTURING ANISOTROPY Seismic refraction Multichannel analysis of surface wave(MASW) Forward modelling 

分 类 号：TU45[建筑科学—岩土工程]