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3 充填体试件的弹性模量
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Table 3 Elastic modulus 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试件的弹性模量/MPa |
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| 3 d | 7 d | 14 d | 28 d |
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| 1∶4，完整不分层 | 152.81 | 200.37 | 351.84 | 421.27 | | 1∶4，自然分层 | 100.86 | 172.75 | 219.48 | 223.74 | | 1∶4，喷砂处理分层 | 132.32 | 177.39 | 227.00 | 245.38 | | 1∶6，完整不分层 | 83.23 | 108.97 | 212.20 | 285.07 | | 1∶6，自然分层 | 72.33 | 102.50 | 173.79 | 202.64 | | 1∶6，喷砂处理分层 | 82.29 | 106.02 | 177.15 | 210.12 | | 1∶8，完整不分层 | 59.17 | 71.74 | 139.37 | 199.97 | | 1∶8，自然分层 | 37.12 | 61.68 | 81.49 | 135.34 | | 1∶8，喷砂处理分层 | 45.18 | 66.53 | 82.13 | 143.52 |
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