摘要
尾砂胶结充填体是一高度非线性介质 ,有不同于岩石和混凝土的独特力学特性。本研究分别对灰砂比为 1∶4、1∶8和 1∶10的 3种尾砂胶结充填试块进行了压缩与拉伸力学试验 ,测试了其应力 -应变关系 ,分析了充填体破坏机理及不同配比下的力学特性 ,建立了 3种不同配比充填体压缩和拉伸损伤本构方程。经验算对比 。
Cemented tailing filling is a highly non-linear medium, which has uniquely mechanical properties different from those of rock and concrete. In the research, compressing and tensing tests on the filling samples with cement-tailing ratios of 1∶4,1∶8 and 1∶10 respectively were made. Their stress-strain relation was tested, the fractural mechanism and the mechanical properties of the fillings with various cement-tailing ratios were analysed and the constitutive equation of compressing and tensing caused damage for fillings with the above three cement-tailing ratios were established. The calculation and comparision showed that the established damage constitutive equations accorded well with the test data.
出处
《金属矿山》
CAS
北大核心
2004年第11期22-24,42,共4页
Metal Mine
