建筑密集区深基坑支撑梁爆破钻孔施工技术

CONSTRUCTION TECHNOLOGY OF BLASTING DRILLING FOR SUPPORTING BEAM OF DEEP FOUNDATION PIT IN BUILDINGS DENSE AREA CONCRETE

昆明市春之眼商业中心街建筑密集区基坑支撑梁拆除前采用微差毫秒爆破技术进行钻孔计算设计,在施工过程中及时调整爆破钻孔设计参数与工艺措施,保证了深基坑与周边建筑物安全,满足施工进度和安全要求。

Before the demolition of the supporting beams of the foundation pit in the denselybuilt area of the Chunzhi Eye Commercial Center Street in Kunming City,the m illisecond blasting technology was used to carry out the drilling calculation design.The building is safe to m eet the construction schedule and safety requirements.