CAJ | 학술논문

通过不同装药量和装药结构的松散介质抛掷爆破野外试验,研究分析了抛掷爆破技术中介质抛掷分布、抛掷率、最远抛掷距离等抛掷效果与装药量、装药结构和施工工艺等因素的内在联系与规律.研究表明:装药量是影响松散介质抛掷爆破抛掷率的主要因素,炸药单耗控制在1.4～1.8 kg/m~3之间可获得比较满意的抛掷效果.采用速凝水泥砂浆将爆体表面进行封闭处理后,会取得更好的抛掷效果.装药结构对松散介质抛掷爆破的介质分布有较大影响,采用集团、线状复合装药结构,不仅使介质抛掷分布更为分散,而且抛掷率也高.能满足快速清障、抢修的需要.
통과불동장약량화장약결구적송산개질포척폭파야외시험,연구분석료포척폭파기술중개질포척분포、포척솔、최원포척거리등포척효과여장약량、장약결구화시공공예등인소적내재련계여규률.연구표명:장약량시영향송산개질포척폭파포척솔적주요인소,작약단모공제재1.4～1.8 kg/m~3지간가획득비교만의적포척효과.채용속응수니사장장폭체표면진행봉폐처리후,회취득경호적포척효과.장약결구대송산개질포척폭파적개질분포유교대영향,채용집단、선상복합장약결구,불부사개질포척분포경위분산,이차포척솔야고.능만족쾌속청장、창수적수요.
Through field experiment of cast blasting in loose medium with different charge amount and structure, the inner relation rules between casting effects such as medium casting distribution,casting rate,biggest casting distance and affecting factors including charge amount.charge structure and construction technology are further studied and analysed.The studies show that the charge amount is the main factor which affects the casting rate in loose medium.Satisfactory casting effects can be obtained when the specific charge is controlled between 1.4 kg/m~3 and 1.8 ks/m~3.After closed treatment of the surface of blasting body with qmck-setting cement,casting effect will be better. Charge structure also plays an important role in medium distribution.By using charge structure with concentrated charge and linear charge.it will not only makes the distribution more dispersed,but also can get a higher casting rate,which can meet the needs of rapid cleaning and repairing.