某复杂基坑爆破地震监测
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摘要
某密集住宅内的基坑开挖因有基岩需采取爆破开挖方式。该基坑边有居民楼和通讯、电力、煤气管道等管线 ,其中煤气管道距基坑边最近仅有 2m。为使其爆破开挖安全 ,确定了爆破地震控制标准 ,进行了爆破地震监测 ,并利用监测结果指导施工
Blasting must be performed in excavating a foundation pit in a densely-populated residential area. However, the pit is very close to civil residential housings as well as very close to pipelines of utilities like communication, power and gas pipelines. The shortest distance between the boundary of the pit and the gas pipeline is only 2m. In order to assure blasting safety, the standard for controlling blasting seismicity was established and seismic monitoring is conducted. The monitored results were used to guide the excavation.
Blasting must be performed in excavating a foundation pit in a densely-populated residential area. However, the pit is very close to civil residential housings as well as very close to pipelines of utilities like communication, power and gas pipelines. The shortest distance between the boundary of the pit and the gas pipeline is only 2m. In order to assure blasting safety, the standard for controlling blasting seismicity was established and seismic monitoring is conducted. The monitored results were used to guide the excavation.
引文
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