分层尾砂胶结充填体力学特性及优化试验研究
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海龙,鲍荣涛,谭世林,房祥龙
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Experimental Study on the Mechanical Properties of Layered Tailing Sand Cemented Backfill and Optimization
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Long HAI,Rongtao BAO,Shilin TAN,Xianglong FANG
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表2 充填体试件的单轴抗压强度
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Table 2 Uniaxial compressive strength of backfill specimens
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试件类型 （灰砂比+分层类型） | 不同养护龄期充填体单轴抗压强度/MPa |
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| 3 d | 7 d | 14 d | 28 d |
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| 1∶4，完整不分层 | 1.650 | 2.371 | 3.517 | 5.175 | | 1∶4，自然分层 | 1.365 | 1.940 | 2.861 | 4.178 | | 1∶4，喷砂处理分层 | 1.601 | 2.077 | 3.045 | 4.446 | | 1∶6，完整不分层 | 0.953 | 1.585 | 2.356 | 3.431 | | 1∶6，自然分层 | 0.891 | 1.472 | 2.158 | 3.114 | | 1∶6，喷砂处理分层 | 0.943 | 1.523 | 2.223 | 3.210 | | 1∶8，完整不分层 | 0.566 | 0.887 | 1.424 | 1.966 | | 1∶8，自然分层 | 0.558 | 0.862 | 1.350 | 1.838 | | 1∶8，喷砂处理分层 | 0.572 | 0.881 | 1.376 | 1.875 |
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