CAJ | 학술논문

冰是一种特殊的固体介质，具有非均匀性、各向异性、应变速率及温度敏感性等特点。本文以黄河爆炸破冰为背景，针对-10℃冰体结构与物理力学性能进行检测，以及冰体在不同加载条件下，所表现的响应特征与破坏特征进行了试验研究。通过分析冰晶体结构与冰内气泡特征，冰体在静载条件下的塑性破坏特征，以及对冰体对爆炸冲击载荷的响应特征，获得冰体的可爆性能与破碎单位体积冰体所需炸药能量计算公式。研究成果可为黄河冰体爆破作业提供理论依据。
빙시일충특수적고체개질，구유비균균성、각향이성、응변속솔급온도민감성등특점。본문이황하폭작파빙위배경，침대-10℃빙체결구여물리역학성능진행검측，이급빙체재불동가재조건하，소표현적향응특정여파배특정진행료시험연구。통과분석빙정체결구여빙내기포특정，빙체재정재조건하적소성파배특정，이급대빙체대폭작충격재하적향응특정，획득빙체적가폭성능여파쇄단위체적빙체소수작약능량계산공식。연구성과가위황하빙체폭파작업제공이론의거。
The ice is an exceptive solid medium with many characteristics ,such as heterogeneity、anisotropy and sensitivity to strain rate and temperature etc .On the background of Yellow River ex-plosive ice-breaking ,the structure and mechanical properties of -10℃ ice body were checked .The experiment studies were carried on about ice body response and failure characteristics with different loading .T hose data are analysed w hich include ice crystal structure and air bubble characteristics inner ice ,ice body's plastic failure characteristic with static loading ,response characteristic with explosive dynamic loading .From which ,that are obtained such as ice body blastability and the computational formula of explosive energy for breaking unit volume of ice body .The research results can provide bas-ic theory evidence for explosive task of Yellow River ice body .