Effect of fines content on liquefaction properties of tailings material

ZHANG Chao; YANG Chun-he

doi:10.16285/j.rsm.2006.07.023

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Effect of fines content on liquefaction properties of tailings material

更新时间：2026-06-25

- Effect of fines content on liquefaction properties of tailings material
- Issue 7, Pages: 1133-1137(2006)
- 作者机构：
  
  1. 中国科学院岩土力学重点实验室
  2. 中国科学院岩土力学重点实验室,武汉,430071
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2006.07.023
  CLC： TU435
- Published：2006
- 稿件说明：
移动端阅览
[1]张超,杨春和.细粒含量对尾矿材料液化特性的影响[J].岩土力学,2006(07):1133-1137+1142.

ZHANG Chao, YANG Chun-he. Effect of fines content on liquefaction properties of tailings material[J]. 2006, (7): 1133-1137.
[1]张超,杨春和.细粒含量对尾矿材料液化特性的影响[J].岩土力学,2006(07):1133-1137+1142. DOI： 10.16285/j.rsm.2006.07.023.

ZHANG Chao, YANG Chun-he. Effect of fines content on liquefaction properties of tailings material[J]. 2006, (7): 1133-1137. DOI： 10.16285/j.rsm.2006.07.023.

摘要

为了模拟沉积分选后颗粒组成的变化对尾矿材料的动力特性的影响

尾矿筛分后按不同的细粒（颗粒直径小于0.074 mm）含量制备尾矿试样

并进行了大量的土动力学试验。分析了细颗粒含量对尾矿材料的动力液化特性的影响规律。研究表明

对于铜矿类尾矿坝的尾矿材料

当细颗粒含量占到总量的35%时其抗液化性能最佳。根据尾矿材料动力特性试验的研究结果

并结合现场的标准贯入试验成果

提出了适用于尾矿材料的细粒含量对标准贯入击数的修正式。该式可以分析不同细粒含量的尾矿材料的抗液化强度

提高尾矿坝液化判别方法的判别准确程度。

Abstract

In order to simulate the fines content effect on the liquefaction properties of tailings

the tailings were sieved and then were mixed according to different fines contents to prepare samples.Based on a lot of dynamic tests of these tailings samples

the effect of fines（d < 0.074 mm） content on the dynamic liquefaction of tailings was analyzed in detail.The study result has shown that when the fines content is about 35 %

the liquefaction resistance of tailings is the best.Based on the dynamic experiments and lots of standard penetration tests in situ

a modified formula is presented to take the effect of fines content on liquefaction properties into account.The modified formula can analyze the effect of fines content on the liquefaction resistance of tailings material.Consequently

the modified formula can evaluate liquefaction strength of tailings material more accurately.

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