围压与料浆浓度对尾砂充填体峰后损伤演化研究

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围压与料浆浓度对尾砂充填体峰后损伤演化研究

杨世兴,付玉华,占飞

Study on Post Peak Damage Evolution of Tailings Filling Body by Confining Pressure and Slurry Concentration

Shixing YANG,Yuhua FU,Fei ZHAN

表3 试件极限破坏峰值前后损伤关系式

试件编号	试件峰前损伤关系	试件峰后损伤关系
Q-4-2	$D = 11842.869 ε^{2.301}$	$D = 1.303 - e x p [- 52.368 (ε - 0.0101)]$
Q-4-3	$D = 14719.369 ε^{2.153}$	$D = 1.317 - e x p [- 49.519 (ε - 0.0068)]$
Q-5-1	$D = 1121237.128 ε^{3.744}$	$D = 1.211 - e x p [- 70.403 (ε - 0.0160)]$
Q-5-2	$D = 19407.241 ε^{2.491}$	$D = 1.286 - e x p [- 68.031 (ε - 0.0115)]$
Q-5-3	$D = 36699402.5 ε^{4.220}$	$D = 1.192 - e x p [- 62.987 (ε - 0.0109)]$
Q-6-1	$D = 1311592.378 ε^{3.332}$	$D = 1.231 - e x p [- 57.464 (ε - 0.0094)]$
Q-6-2	$D = 99620.248 ε^{2.637}$	$D = 1.275 - e x p [- 60.326 (ε - 0.0078)]$
Q-6-3	$D = 953328.834 ε^{3.299}$	$D = 1.233 - e x p [- 78.318 (ε - 0.0099)]$