掲載雑誌（和）： 岩盤力学に関するシンポジウム講演論文集 Vol： 22巻 年： 1990年 頁： 261-265頁 著者（和）： 平田　篤夫，　金子　勝比古，　稲葉　カ，　石山　宏二 タイトル（和）： 発破震源スペクトル特性 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF THE SYMPOSIUM ON ROCK MECHANICS 著者（英）： Atsuo HIRATA, Katsuhiko KANEKO, Tsutomu INABA, Koji ISHIYAMA タイトル（英）： CHARACERISTICS OF BLASTING SOURCE SPECTRUM 抄録（英）：
It is significant to evaluate the damage for architectures and structures by blasting. The estimation method of blasting vibration is presented and discussed about the data, measured in rock at advance of tunnel excavation. The proposed technique, using Fourier transform, predicts the blasting vibration level in frequency domain. The spectrum of the measured vibration of blasting represents product of blasting source spectrum, wave path effect and the properties of ground around sensors, locally. The blasting source spectrum means the nature of the fracture at the boundary between elastic zone in rock. The spectrum corrected for the wave path is compared with theoretical source spectrum. It is characterized elastic wave velocity, rock density, rupture radius and tensile stress of rock. Rupture size defined by tensile strength is within the the range of the reasonable scale, the proposed method is good accuracy to account for the evaluation of the blasting source mechanism. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集