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通过对南通港主航道水下除障强爆破的观测，结合爆炸地震波理论，分析了爆破近场地面运动的特点，指出经验公式估算值与实际观测结果在评价地面运动对场地及地表建筑安全性评价的意义。
Based on the observation of the strong blasting in Nantong main waterway, and combining with the theory of blasting seismic wave, the characteristics of ground motion in blasting near field are analyzed. It is pointed out that the estimation of empirical formula and the actual observation result are significant in evaluating the safety of site and surface construction The significance of evaluation.