2009 Fiscal Year Final Research Report

Fracture plane control method in blasting to reduce influence on environment

Research Project

Project/Area Number	19560815
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Earth system and resources enginnering
Research Institution	Yatsushiro National College of Technology
Principal Investigator	NAKAMURA Yuichi Yatsushiro National College of Technology, 建築社会デザイン工学科, 教授 (00112392)
Co-Investigator(Renkei-kenkyūsha)	MURAYAMA Koichi 熊本高等専門学校, 機械知能システム工学科, 准教授 (30290836) NISHIMURA Sohei 熊本高等専門学校, 機械知能システム工学科, 助教 (00442484)
Project Period (FY)	2007 – 2009
Keywords	動的破砕工法 / 破断面制御 / 音圧測定 / 簡易装薬ホルダー
Research Abstract	Model experiments in the laboratory and large-scale experiments in the field were carried out to develop the dynamic fracture plane control method in blasting. The method using the simple type charge holder enables us to reduce the sound noise in blasting affecting environments. Sound pressure measurements were performed to show the effectiveness of the method. The blasting agent, cracker for concrete and rock (CCR), was used to reduce loads in field works. Model experiments were also performed to develop new fracture method using the electric discharge energy

(2 results)