http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이수곤 ( Soo Gon Lee ),전복현 ( Bok Hyun Jun ) 서울시립대학교 산업기술연구소 2006 산업기술연구소논문집 Vol.14 No.-
Recently, population increase and advanced economy let us reconstruct old freeways. To consider a better freeway shape, we must dig tunnels through mountains. But while tunnel excavation, the possibility of collapse is inclined to be higher. So the aim of this paper is to analyze forms and causes of the collapse for different geological conditions and applied reinforcement solutions from typical collapse sites during constructions. As all investigators described the collapse sites on their own ways, all data forms and methods are so different that it was difficult for me to use and analyze the collapse causes.