JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2012, Vol. 42 ›› Issue (6): 86-92.

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Rock mass classification for undergound facility with emphasis on hydrogeology and its engineering application

LIANG Jian-yi1, LI Shu-cai2, XUE Yi-guo2, WANG Zhe-chao2, ZHOU Yi2, PING Yang2   

  1. 1. Huangdao Oil Reserve Base Limited Company, Qingdao 266426, China; 2. Geotechnical and Structural Engineering Research Center, Jinan 250061, China
  • Received:2012-04-23 Online:2012-12-20 Published:2012-04-23

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Abstract:

The current classification standards of rock mass, based on evaluation for the stability of surrounding rock mass, can not meet special requirements of underground projects on permeability of surrounding rock mass. Based on the analysis of the current rock mass classification standards and the particularity of underground crude oil storage caverns, the evaluation of rock permeability and the quality of rock mass were considered at the same time. The hydrological geology classification method for the service of the construction was established in order to objectively analyze the permeability of surrounding rock based on the technical means of the detailed investigation, construction survey and advanced geological prediction, of which the connecting rate of the structure, the opening degree and preferred structural plane’s attitude were introduced into the evaluation criteria. The hydrological classification direct guide grouting, and the effect of grouting was inspected by using the geological radar and packer test to ensure the stability and water seal of underground cavity.

Key words: hydrogeology, large underground crude oil storage caverns;groundwater, rock classification, grouting

CLC Number: 

  • TE822
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