Media type: E-Article Title: Stability Analysis of Middle Rock Pillar and Cross - Section Optimization for Ultra - Small Spacing Tunnels Contributor: Shuren, Wang; Kunpeng, Shi; Wenxue, Chen; Shiping, Liu Published: International Hellenic University, 2018 Published in: Journal of Engineering Science and Technology Review, 11 (2018) 3, Seite 147-153 Language: Not determined DOI: 10.25103/jestr.113.20 ISSN: 1791-9320; 1791-2377 Keywords: General Engineering Origination: Footnote: Access State: Open Access