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介绍采用深孔综合控爆技术(底部间隔装药、孔内微差、逐孔顺序起爆、开切预裂缝等)使邻近爆区的建(构)筑物所产生的振动强度减弱到最低程度,确保鞍钢专家接待楼地表以下土石方爆破过程中邻近建(构)筑物的安全,文中着重论述通过试验研究确定底部间隔装药和开切预裂缝后的综合减震效应(减震率);阐明所进行的爆破地震强度监测及其结果分析,在整个爆破过程中为确保邻近建(构)筑物安全所起的指导作用。
INTRODUCTION The use of deep hole integrated explosion control technology (bottom interval charge, hole difference, hole-by-hole sequence initiation, opening pre-cracking, etc.) weakens the vibration intensity of the adjacent structures , To ensure the safety of the adjacent structures during the earthwork blasting process below the surface of the Anshan Iron and Steel Company receptionist floor. The article focuses on the comprehensive damping effect (damping rate) after the bottom interval charge and the pre-cracking at the bottom by the experimental study. The monitoring and analysis of the blasting seismic intensity and the analysis of the results are made to clarify the guiding role of ensuring the safety of neighboring structures during the whole blasting process.