Page 62 - 《应用声学》2020年第4期
P. 62
548 2020 年 7 月
property of filling body for fly ash composite cementi-
5 结论 tious materials[J]. Journal of China University of Mining
& Technology, 2015, 44(4): 650–655, 695.
(1) 随着尾砂胶结充填体质量浓度的增大,充 [5] 陈育志, 陈师节. BFRP 筋混凝土粘结 -滑移声发射特性研
究 [J]. 应用声学, 2019, 38(5): 824–829.
填体试件峰值强度与弹性模量呈增大趋势,峰值应 Chen Yuzhi, Chen Shijie. Experimental study on AE
变整体呈减小趋势。 characteristics of bond-slip for the BFRP reinforced
(2) 不同浓度充填体试件在压密、弹性与屈服 concrete[J]. Journal of Applied Acoustics, 2019, 38(5):
824–829.
阶段的声发射累计振铃计数变化趋势基本一致。随 [6] 耿荣生, 景鹏. 基于声发射监测的综合无损检测技术与飞机疲
着浓度增加,产生的声发射振铃计数越多。 劳试验定寿 [J]. 应用声学, 2012, 31(1): 28–34.
(3) 声发射累计撞击数与声发射累计能量的比 Geng Rongsheng, Jing Peng. Acoustic emission based in-
tegrated NDT and full scale aircraft fatigue test[J]. Jour-
值 r 值均先升高再持续减小到一个较低值,随着外 nal of Applied Acoustics, 2012, 31(1): 28–34.
载荷的增加,进入缓慢升高阶段,峰值前均保持在该 [7] 程爱平, 张玉山, 戴顺意, 等. 单轴压缩胶结充填体声发射
阶段。 参数时空演化规律及破裂预测 [J]. 岩土力学, 2019, 40(8):
2965–2974.
(4) 充填体破裂前兆信息在声发射信号主频分 Cheng Aiping, Zhang Yushan, Dai Shunyi, et al. Space-
布中呈现主频段增多的现象,主要表现为由加载初 time evolution of acoustic emission parameters of ce-
mented backfill and its fracture prediction under uniax-
期的 1 ∼ 2 个主频段,在临界主破裂时增多到 3 ∼ 5
ial compression[J]. Rock and Soil Mechanics, 2019, 40(8):
个主频段。并且随着试件质量浓度的增加,声发 2965–2974.
射信号主频频段分布越宽,声发射相对高频信号 [8] 龚囱, 李长洪, 赵奎. 加卸荷条件下胶结充填体声发射 b 值特
(160 ∼ 180 kHz)的激增响应系数呈递减趋势。 征研究 [J]. 采矿与安全工程学报, 2014, 31(5): 788–794.
Gong Cong, Li Changhong, Zhao Kui. Experimental
上述特征为不同浓度的尾砂胶结充填体的破 study on b-value characteristics of acoustic emission of ce-
坏失稳监测预测提供了基础依据。 mented filling body under loading and unloading test[J].
Journal of Mining & Safety Engineering, 2014, 31(5):
788–794.
[9] 谢勇, 何文, 朱志成, 等. 单轴压缩下充填体声发射特性及损
参 考 文 献
伤演化研究 [J]. 应用力学学报, 2015, 32(4): 670–676, 710.
Xie Yong, He Wen, Zhu Zhicheng, et al. Study on back-
[1] 王明旭. 胶结充填体与围岩复合体的力学特性 [J]. 煤炭学报, fill acoustic emission characteristic and damage evolution
2019, 44(2): 445–453. under uniaxial compression[J]. Chinese Journal of Applied
Mechanics, 2015, 32(4): 670–676, 710.
Wang Mingxu. Mechanics characteristics of cemented fill-
ing and surrounding rock[J]. Journal of China Coal Soci- [10] 孙光华, 魏莎莎, 刘祥鑫. 基于声发射特征的充填体损伤演化
ety, 2019, 44(2): 445–453. 研究 [J]. 实验力学, 2017, 32(1): 137–144.
[2] 曹帅, 宋卫东, 薛改利, 等. 考虑分层特性的尾砂胶结充填体 Sun Guanghua, Wei Shasha, Liu Xiangxin. On the dam-
强度折减试验研究 [J]. 岩土力学, 2015, 36(10): 2869–2876. age evolution of fillings based on acoustic emission char-
Cao Shuai, Song Weidong, Xue Gaili, et al. Tests of acteristics[J]. Journal of Experimental Mechanics, 2017,
strength reduction of cemented tailings filling consider- 32(1): 137–144.
ing layering character[J]. Rock and Soil Mechanics, 2015, [11] 曾鹏, 纪洪广, 孙利辉, 等. 不同围压下岩石声发射不可逆性
36(10): 2869–2876. 及其主破裂前特征信息试验研究 [J]. 岩石力学与工程学报,
[3] 赵康, 朱胜唐, 周科平, 等. 钽铌矿尾砂胶结充填体力学特 2016, 35(7): 1333–1340.
性及损伤规律研究 [J]. 采矿与安全工程学报, 2019, 36(2): Zeng Peng, Ji Hongguang, Sun Lihui, et al. Experimental
413–419. study of characteristics of irreversibility and fracture pre-
Zhao Kang, Zhu Shengtang, Zhou Keping, et al. Research cursors of acoustic emission in rock under different confin-
on mechanical properties and damage law of tantalum- ing pressures[J]. Chinese Journal of Rock Mechanics and
niobium ore cemented tailings backfill[J]. Journal of Min- Engineering, 2016, 35(7): 1333–1340.
ing & Safety Engineering, 2019, 36(2): 413–419. [12] 张艳博, 梁鹏, 刘祥鑫, 等. 基于声发射信号主频和熵值的岩
[4] 李茂辉, 杨志强, 王有团, 等. 粉煤灰复合胶凝材料充填体 石破裂前兆试验研究 [J]. 岩石力学与工程学报, 2015, 34(S1):
强度与水化机理研究 [J]. 中国矿业大学学报, 2015, 44(4): 2959–2967.
650–655, 695. Zhang Yanbo, Liang Peng, Liu Xiangxin, et al. Experi-
Li Maohui, Yang Zhiqiang, Wang Youtuan, et al. Ex- mental study on precursor of rock burst based on acoustic
periment study of compressive strength and mechanical emission signal dominant-frequency and entropy[J]. Chi-