01038nam a2200265 c 4500001001300000005001500013007000300028008004100031040001100072041001300083052003700096245014700133300002200280545005400302545004300356545003700399653008000436700001900516700004800535700001400583773012700597900001700724900001700741900001400758KSI00067936720081114094550ta080708s2005    ulk           000   kor    a0110010 akorbeng01a572.2705b대495ㅎc23(1)-23(4)00a터널에서의 여굴 低減 方案에 관한 硏究 =xStudy on reducing overbreak in tunnel excavation /d배상훈,e김대상,e김무일  ap. 41-46 ;c26 cm  a배상훈, (주)미래공영발파엔지니어링  a김대상, 한국철도기술연구원  a김무일, 서울산업대학교  aTunnelaOverbreakaMulti-hole drilling methoda터널a여굴a다단천공1 a배상훈4aut1 a김대상,g金大相,d1967-0KAC2012194571 a김무일0 t화약발파.d대한화약발파공학회.g23권 1호(2005년 3월), p. 41-46q23:1<41w(011001)KSE199509191,x1229-907310aBae, Sanghun10aKim, Daesang10aKim, Muil