一、前言 伴随首都现代化建设的发展,地铁及其它大型地下工程渐趋增多,开展地下工程施工技术的超前研究日显迫切。经过反复酝酿、广泛调研和多次专家论证,在市科委和市政局支持下,我院于1990年10月正式承担了市科委关于筹建“地下工程施工工艺试验室” I. INTRODUCTION With the development of modernization of the capital, subways and other large-scale underground projects are gradually increasing, and advance research on the construction technology of underground engineering is becoming increasingly urgent. After repeated brewing, extensive investigations and many expert demonstrations, with the support of the Municipal Science and Technology Commission and the Urban Council, in October 1990, our institute officially undertook the establishment of the “Underground Construction Technology Laboratory” by the Municipal Science Committee.