Representative Sample Sampling Method for Size Effect Experiment of Jointed Rock Mass

Autor: Man Huang, Dan Liu, Chenjie Hong, Shigui Du, Zhanyou Luo, Changhong Li, Yongliang Huang
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Geofluids, Vol 2020 (2020)
Druh dokumentu: article
ISSN: 1468-8115
1468-8123
DOI: 10.1155/2020/8870387
Popis: The influence of size effect on the hydromechanical behavior of rock mass has long been recognized. As a result, analysis of the rock mass size effect has been developed. However, when conducting size effect studies, the representativeness of the sample is less considered. Therefore, combining the existing statistical methods and sampling methods, a comprehensive representative sampling method for rock mass is present. In this method, a large number of sample statistics of different sizes are provided in the progressive coverage method; then, the plane density of the track length is defined as the value of stratification to perform stratified sampling for representative samples. Furthermore, it is applied to a joint network model generated in accordance with the actual situation and compared with those of other methods. The sampling results show that the proposed method can provide a certain reference value for studying the scale-dependent behavior of rock mass mechanical parameters.
Databáze: Directory of Open Access Journals
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