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岩石地质条件下,地铁隧道开挖过程中多采用钻爆法施工,爆破施工的过程中,建筑物产生开裂及噪声扰民均容易引起纠纷。做好现场的监测工作,可以为纠纷提供客观的第三方数据支持。现场监测重点主要包括建筑物现状调查、爆破振速监测、沉降及倾斜监测等。根据监测情况,适当调整爆破参数,选择合适装药量,可以有效的减小建筑物振动,避免房屋产生开裂。
Rock and geological conditions, the subway tunnel excavation process using more drilling and blasting method construction, blasting construction process, building cracking and noise nuisance are likely to cause disputes. Doing on-site monitoring can provide objective third-party data support for disputes. The focus of on-site monitoring mainly includes the survey of building status, blasting vibration monitoring, settlement and slope monitoring. According to the monitoring situation, properly adjust the blasting parameters, select the appropriate charge, can effectively reduce the building vibration, to avoid housing cracking.