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以大连地铁富水岩溶区的暗挖施工为背景,利用国内现有的爆破施工机具和爆破施工技术,通过对大连地铁岩溶发育区,半土半石围岩,土石互层围岩,高溶洞发育区域爆破参数的制定和优化,确定适合城市地铁富水岩溶区爆破开挖的松动控制爆破施工参数,解决爆破开挖岩石与保护围岩这一相互矛盾的问题,减小对环境影响和保证施工安全,为类似环境下的城市地铁工程提供施工经验和借鉴意义。
Taking the underground digging construction of water-rich karst area of Dalian Metro as a background, the existing blasting construction equipment and blasting construction technology in Dalian are used to analyze the influence of underground water quality on the development of Dalian Subway Karst Area. Development and optimization of blasting parameters in developing areas to determine loosely controlled blasting construction parameters suitable for blast excavation in urban water-rich karst areas, and to solve the contradictory issue of blasting rock excavation and surrounding rock protection, reducing the impact on the environment and ensuring Construction safety, providing construction experience and reference for urban subway projects under similar environment.