Study of Blasting (III) Stress Waves Produced in the Interior of a Concrete Block by an Explosion and the Resulted Fractures(*in Japanese)´äÀÐȯÇˤ覵æ¡ÊÂ裳Êó¡Ë Çúȯ¤Ë¤è¤ë¸ÇÂÎÆâÏÄÇȤÎÅÁÇÅʤ˾׷âÇ˲õ¤Ë´Ø¤¹¤ë¸¦µæ¡Ê³¡Ë
Teizo Okawa, Masao Hirayama and Kenkichi KiyotaÂçÀîÄ÷»°, Ê¿»³ÀµÉ×, À¶ÅÄ·øµÈ