PRELIMINARY EVALUATION ON THE ENVIRONMENTAL GEOLOGICAL CONDITIONS AND CONSTRUCTION SCHEME OF XUANWU LAKE SUBAQUEOUS HIGHWAY TUNNEL

Urban subaqueous highway tunnel,not only subaqueous,but also in u rban area,is a typical geotechnical engineering in vulnerable envir onment.Based on the analysis of the adverse geological conditions and urban envi ronment restraint factors, in this paper we analyse the environmental impact of the construction, and then preliminarily evaluate the site and construction sche me of Xuanwu Lake subaqueous highway tunnel.