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正好十年前(1970年6月22——26日)在联合国经济合作和发展组织的赞助下,在华盛顿召开过的有19个国家的代表参加的隧道工程咨询会议。这次会议产生了国际隧道工程协会和所属的国家组织,引起了一些为着改进隧道工程和地下建筑技术和较大规模地利用地下空间为总目标的会议和出版物。从那以后,取得了一些技术进展。然而,对于地下空间的
Just ten years ago (22-26 June 1970), a tunnel engineering consultation meeting attended by 19 countries in Washington, under the auspices of the United Nations Organization for Economic Co-operation and Development, took place. The conference resulted in the International Association of Tunneling Engineering and its affiliated national organization, which generated a number of conferences and publications aimed at improving tunneling and underground construction technology and using the large-scale use of underground space at large scale. Since then, some technological advances have been made. However, for underground space