摘要
在分析水下爆破规律性的基础上,确认了在马迹山港挤淤爆破中地震波对城门头景点的稳定性起主要的影响,并对其传播机理及影响机制进行了分析。对岩体裂隙进行的网络模拟结果揭示了爆破点与城门头景点之间岩体裂隙发育的宏观特征,对爆破震动的影响进行了分析,计算了爆破在景点处所引起的波速,得出挤淤爆破不会对城门头景点构成破坏性影响的结论。
To evaluate the impact of the silt-crush blast in the Majishan port,the article first analyzes the rule of the under-water blast,affirming the earth shock wave to be the main factor,and then performes analysis of its embedded principle and impact-mechanism. In the analysis,the rock-cranny simulation technique exposures the macroscopical character of the rock-cranny between the blast point and the evaluation point. Then the results are utilized to analyze the impact of this blast quantitatively. At last the numerical modeling is adopted to simulate the process,calculating the most dosage of the detonator,and makeing the qualitative analysis of the blasting-impact on the sight.
出处
《地质科技情报》
CAS
CSCD
北大核心
2005年第B07期173-176,共4页
Geological Science and Technology Information
关键词
挤淤爆破
爆破地震波
岩体裂隙网络模拟
silt-crush blast,blast-earth shock wave,rock-cranny simulation technique
