【摘要】 介绍了昆明市东风东路22层框剪结构办公大楼爆破拆除的地震动及周边建筑监测成果,根据爆破工程场地范围内的建筑结构类型、分布位置、该爆破工程三切口分段式爆破的特点布置了地震动测试点及测线,对地震动地面加速度、速度时程曲线、功率谱、震动记录特征、振动强度地面分布及衰减特征进行了分析,并结合实测数据就爆破振动对周边环境影响的安全判据进行了对比;此外对周边临近建筑进行了常规的变形及裂缝监测,为完善爆破拆除对周边环境的影响分析及纠纷鉴定提供了辅助数据。更多还原

【Abstract】 The monitoring of blasting vibration near surrounding building during explosive demolition of 22-storey frame-shear wall structure at east of Dongfeng road of Kunming city was introduced.The monitoring point was set up based on the structure types,distribution position and characteristics of three-incision sectional blasting method.Then the vibration acceleration,speed history-time curve,power spectrum,vibration recording characteristic,distribution of vibration intensity and attenuation characteristics were analyzed.In addition,the safety criterion of blasting vibration influence on surrounding environment was discussed combined with test data.Furthermore,the conventional deformation and fracture monitoring were also made to provides auxiliary data for the safety evaluation of surrounding building.更多还原