地铁矿山法浅埋暗挖隧道穿越文保建筑的爆破设计

结合地铁矿山法隧道在浅埋暗挖条件下,采用控制爆破技术穿越青岛八大关文保建筑的工程实例,简要介绍爆破工程中的设计、爆破参数选取、单段最大装药量与爆破震速的关系分析确定等。所采取的爆破设计使老城区文保建筑沉降、倾斜及爆破震速等3个控制指标均满足规范要求,有效保证了老城区文保建筑的安全。

Blasting Design for Metro Mining Method of Cut and Fill to Crossing The Historical Buildings

Taking into consideration of the metro mining tunneling method of cut-fill conditions,using control blasting technique to pass the Qingdao Badaguan historical relics as an instance,the article briefly introduces the design of the blasting work,blasting parameters selection,relationship analysis to determine the maximum charge weight of single segment and blast shock speed.Blasting design taken to the old city to protect cultural building and historical relics with three control targets for subsidence,declination and blasting shock speed have met control requirements,providing effectively guarantee the safety of the old city and the historical buildings.