Extraction and statistics of discontinuity orientation and trace length from typical fractured rock mass: A case study of the Xinchang underground research laboratory site, China

2020 ◽  
Vol 269 ◽  
pp. 105553 ◽  
Author(s):  
Wentao Xu ◽  
Yangsong Zhang ◽  
Xiaozhao Li ◽  
Xinyong Wang ◽  
Fei Ma ◽  
...  
Keyword(s):  
Rock Mass ◽  
Research Laboratory ◽  
Fractured Rock ◽  
Fractured Rock Mass ◽  
Trace Length ◽  
Discontinuity Orientation ◽  
Underground Research Laboratory

scholarly journals Determining the REV for Fracture Rock Mass Based on Seepage Theory

Geofluids ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Lili Zhang ◽  
Lu Xia ◽  
Qingchun Yu
Keyword(s):  
Rock Mass ◽  
Fractured Rock ◽  
Engineering Application ◽  
Existence Condition ◽  
Analysis Tool ◽  
Fractured Rock Mass ◽  
Rock Classification ◽  
Fracture Spacing ◽  
Fractured Rock Masses

Seepage problems of the fractured rock mass have always been a heated topic within hydrogeology and engineering geology. The equivalent porous medium model method is the main method in the study of the seepage of the fractured rock mass and its engineering application. The key to the method is to determine a representative elementary volume (REV). The FractureToKarst software, that is, discrete element software, is a main analysis tool in this paper and developed by a number of authors. According to the standard of rock classification established by ISRM, this paper aims to discuss the existence and the size of REV of fractured rock masses with medium tractility and provide a general method to determine the existence of REV. It can be gleaned from the study that the existence condition of fractured rock mass with medium tractility features average fracture spacing smaller than 0.6 m. If average fracture spacing is larger than 0.6 m, there is no existence of REV. The rationality of the model is verified by a case study. The present research provides a method for the simulation of seepage field in fissured rocks.

scholarly journals Permeability characteristics of fractured rock mass: a case study of the Dongjiahe coal mine

2020 ◽  
Vol 11 (1) ◽  
pp. 1724-1742 ◽  
Author(s):  
Ke Ma ◽  
Longjiang Wang ◽  
Yilin Peng ◽  
Liji Long ◽  
Sujian Wang ◽  
...  
Keyword(s):  
Rock Mass ◽  
Coal Mine ◽  
Fractured Rock ◽  
Fractured Rock Mass ◽  
Permeability Characteristics

Study of the geometrical size effect of a fractured rock mass based on the modified blockiness evaluation method

2018 ◽  
Vol 11 (11) ◽  
Author(s):  
Qingfa Chen ◽  
Tingchang Yin ◽  
Wenjing Niu ◽  
Wenshi Zheng ◽  
Junguang Liu
Keyword(s):  
Rock Mass ◽  
Size Effect ◽  
Evaluation Method ◽  
Fractured Rock ◽  
Fractured Rock Mass ◽  
Geometrical Size
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