本文利用流体动力学模型，得到球对称装药爆破近区的自模拟解。
By applying the hydraulic model, the self-simulation solution of the spherical charge blasting at the close zone has been obtained.
介绍了YCD - 1型超动态应变仪的研制、设计原理和主要特点，及在爆破近区应变测试中的应用。
This paper describes the development, design principle and main features of type YCD-1 ultra-dynamic strain gauge, and the application of it to strain testing in the near-blasting field.
因此，测试隧道爆破近区围岩的振动、研究隧道掌子面附近围岩的振动规律是隧道钻爆施工安全的重要保证。
So it is necessary to test blasting vibration of the surrounding rock near tunnel blasting source and to study the blasting vibration rule.
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