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http://dx.doi.org/10.9711/KTAJ.2014.16.5.487

Consideration on design procedure of room-and-pillar underground structure part I: parametric study  

Lee, Chulho (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Hwang, Jedon (ESCO Consultant & Engineers Co., Ltd.)
Kim, Eunhye (ESCO Consultant & Engineers Co., Ltd.)
Chang, Soo-Ho (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.16, no.5, 2014 , pp. 487-495 More about this Journal
Abstract
In this study, in order to suggest the design method for supports in the room-and-pillar underground structure, the case study was carried out. In the case study, shape of rock pillar and room was mainly considered. From the analysis, a displacement at the roof, the maximum principle stress and plastic state were examined. To optimize variables in the case study, cases from the Seoul metro station were analyzed, then a target depth of the underground structure and ground conditions were determined. And the height of rock pillar and room were chosen from the assumed purpose of underground space, i.e. living/office and warehouse. Total cases of analysis was 180 cases including 3 types of ground condition, 5 types of rock pillar and 6 types of roof span. It is expected that results from analysis can be used to determine the installation of support in room-and-pillar underground structure with stability, utilization efficiency of underground space and applicability of vehicles.
Keywords
Room and pillar method; Support; Numerical analysis; Design; Stability; Parametric study;
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Times Cited By KSCI : 2  (Citation Analysis)
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