三山岛金矿深埋蚀变硬岩真三轴压缩下的力学性质

doi:10.12068/j.issn.1005-3026.2022.11.011

东北大学学报（自然科学版） ›› 2022, Vol. 43 ›› Issue (11): 1599-1606.DOI: 10.12068/j.issn.1005-3026.2022.11.011

三山岛金矿深埋蚀变硬岩真三轴压缩下的力学性质

杨成祥，陈祥艳，周建华

(东北大学深部金属矿山安全开采教育部重点实验室，辽宁沈阳110819)

发布日期:2022-12-06
通讯作者: 杨成祥
作者简介:杨成祥(1973-)，男，安徽芜湖人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51839003).

Mechanical Properties of Deep Buried Altered Hard Rock Under True Triaxial Compression in Sanshandao Gold Mine

YANG Cheng-xiang， CHEN Xiang-yan， ZHOU Jian-hua

Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines， Northeastern University， Shenyang 110819， China.

Published:2022-12-06
Contact: YANG Cheng-xiang
About author:-
Supported by:
-

摘要/Abstract

摘要： 以深部三种不同的蚀变岩为研究对象，利用真三轴加载系统和声发射监测系统，对岩样进行加载试验和声发射监测试验，对三种蚀变岩的变形、强度、破裂演化过程及微观破坏机制进行分析.试验结果表明:受动力变质作用和蚀变作用影响，三种蚀变岩的力学性质有较大差异.蚀变后产生方解石含量高的岩样脆性大，破坏过程最剧烈，弹性能释放最快;遭受严重动力变质作用和发生碳酸盐化蚀变都会降低蚀变岩的强度，且其抵抗和容纳变形的能力较弱，岩石容易破坏;蚀变产物中白云石含量高会导致蚀变岩主裂纹扩展方向发生偏转.

关键词: 真三轴;压缩;蚀变岩;声发射;破裂过程

Abstract: The triaxial loading tests and the acoustic emission monitoring tests were carried out three types of altered rocks buried in the depth by using the true triaxial loading system and the acoustic emission monitoring system. The deformation， strength， crack evolution process and microscopic failure mechanism of the altered rocks were analyzed. The experimental results show that the mechanical properties of the three types of altered rocks are quite different due to the influence of the dynamic metamorphism and alteration. After alteration， rock sample with high calcite content becomes brittle， and the failure process is severe accompanied by fast release of elastic energy. The strength of the altered rock suffered from severe dynamic metamorphism and carbonate alteration can be reduced， so its ability to resist deformation is weakened and being vulnerable to be damaged.High content of dolomite in the alteration products can lead to the deflection of crack propagation.

Key words: true triaxial; compression; altered rock; acoustic emission (AE); rupture process

中图分类号:

TU458

杨成祥，陈祥艳，周建华. 三山岛金矿深埋蚀变硬岩真三轴压缩下的力学性质[J]. 东北大学学报（自然科学版）, 2022, 43(11): 1599-1606.

YANG Cheng-xiang， CHEN Xiang-yan， ZHOU Jian-hua. Mechanical Properties of Deep Buried Altered Hard Rock Under True Triaxial Compression in Sanshandao Gold Mine[J]. Journal of Northeastern University(Natural Science), 2022, 43(11): 1599-1606.

参考文献

[1]Zhu Z Y，Jiang S Y，Mathur R，et al.Iron isotope behavior during fluid/rock interaction in K-feldspar alteration zone—a model for pyrite in gold deposits from the Jiaodong Peninsula，East China［J］.Geochimica et Cosmochimica Acta，2018，222:94-116.
[2]Takashi Y，Takanobu M，Yuya I，et al.Mass transfer associated with chloritization in the hydrothermal alteration process of granitic pluton［J］.American Mineralogist，2021，106(7):1128-1142.
[3]Heidarian H，Alirezaei S，Lentz D R.Chadormalu Kiruna-type magnetite-apatite deposit，Bafq district，Iran:insights into hydrothermal alteration and petrogenesis from geochemical，fluid inclusion，and sulfur isotope data［J］.Ore Geology Reviews，2017，83:43-62.
[4]杨根兰，黄润秋，王奖臻，等.某工程蚀变岩孔隙特征及其软弱程度研究［J］.矿物岩石，2006(4):111-115.(Yang Gen-lan，Huang Run-qiu，Wang Jiang-zhen，et al.Study on the pore characteristics and the weakness of altered-rock for a project［J］.Journal of Mineralogy and Petrology，2006(4):111-115.)
[5]杨根兰.蚀变岩特性及其工程响应研究［D］.成都: 成都理工大学，2007.(Yang Gen-lan.Altered-rock characteristics and its engineering respondences studing［D］.Chengdu:Chengdu University of Technology，2007.)
[6]郭健，许模，张强.蚀变花岗岩特征及工程特性研究［J］.甘肃水利水电技术，2009，45(9):27-29.(Guo Jian，Xu Mo，Zhang Qiang.Characteristics and engineering characteristics of altered granites［J］.Gansu Water Conservancy and Hydropower Technology，2009，45(9):27-29.)
[7]Tu X B，Jian B，Wang S J，et al.Swelling behavior induced by alteration in granite and its implications on underground excavation［J］.Tunnelling and Underground Space Technology Incorporating Trenchless Technology Research，2005，20(4):378-389.
[8]苗朝，沈军辉，李文纲，等.大岗山坝区辉绿岩脉蚀变泥化特征及机理研究［J］.工程地质学报，2014，22(1):130-136.(Miao Chao，Shen Jun-hui，Li Wen-gang，et al.Argillization and mechanism characteristics of altered-dolerite in Dagangshan hydropower station［J］.Journal of Engineering Geology，2014，22(1):130-136.)
[9]王振.天池抽水蓄能电站岩体蚀变特征及其对地下厂房围岩稳定性影响分析［D］.郑州:华北水利水电学院，2012.(Wang Zhen.Study on alteration and the stability of surrounding rock of underground caverns under influence of altered-rock in Tianchi pumped storage station［D］.Zhengzhou:North China Institute of Water Resources and Hydropower，2012.)
[10]Feng X T，Zhang X W，Kong R，et al.A novel mogi type true triaxial testing apparatus and its use to obtain complete stress-strain curves of hard rocks［J］.Rock Mechanics and Rock Engineering，2016，49(5):1649-1662.
[11]Feng X T，Zhang C Q，Qiu S L，et al.Dynamic design method for deep hard rock tunnels and its application［J］.Journal of Rock Mechanics and Geotechnical Engineering，2016，8(4):443-461.
[12]Feng X T，Pei S F，Jiang Q，et al.Deep fracturing of the hard rock surrounding a large underground cavern subjected to high geostress:in situ observation and mechanism analysis［J］.Rock Mechanics and Rock Engineering，2017，50(8):2155-2175.
[13]Zhang Y，Feng X T，Yang C X，et al.Evaluation method of rock brittleness under true triaxial stress states based on pre-peak deformation characteristic and post-peak energy evolution［J］.Rock Mechanics and Rock Engineering，2021，54(3):1277-1291.
[14]袁广祥，张路青，曾庆利，等.花岗岩矿物组成与其单轴抗压强度的相关性研究［J］.水文地质工程地质，2018，45(5):93-100.(Yuan Guang-xiang，Zhang Lu-qing，Zeng Qing-li，et al.Correlation of the mineralogical characteristics with the uniaxial compressive strength of granite［J］.Hydrogeology and Engineering Geology，2018，45(5):93-100.
[15]Kong R，Feng X T，Zhang X W，et al.Study on crack initiation and damage stress in sandstone under true triaxial compression［J］.International Journal of Rock Mechanics and Mining Sciences，2018，106:117-123.
[16]Gao Y H，Feng X T，Zhang X W，et al.Characteristic stress levels and brittle fracturing of hard rocks subjected to true triaxial compression with low minimum principal stress［J］.Rock Mechanics and Rock Engineering，2018，51(12):3681-3697.
[17]Eberhardt E，Stead D，Stimpson B.Quantifying progressive pre-peak brittle fracture damage in rock during uniaxial compression［J］.International Journal of Rock Mechanics and Mining Sciences，1999，36:361-380.
[18]Martin C D，Chandler N A.The progressive fracture of Lac du Bonnet granite［J］.International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts，1994，31(6):643-659.
[19]Zheng Z，Feng X T.Influence of intermediate principal stress on the mechanical properties of rocks containing fractures［J］.Géotechnique Letters，2020，10(2):82-87.

三山岛金矿深埋蚀变硬岩真三轴压缩下的力学性质

Mechanical Properties of Deep Buried Altered Hard Rock Under True Triaxial Compression in Sanshandao Gold Mine

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 4

编辑推荐

Metrics

本文评价

[1]	胡颖鹏，任凤玉，丁航行，付煜. 基于SURPAC的复杂岩体RFPA^3D模型构建与应用[J]. 东北大学学报:自然科学版, 2018, 39(7): 1028-1032.
[2]	赵永川，杨天鸿，秦涛，汪泓. 围压效应对钙泥质胶结砂岩强度和变形的影响[J]. 东北大学学报:自然科学版, 2018, 39(2): 254-259.
[3]	陈世万，杨春和，王贵宾，魏翔. 不同围压下花岗岩σ_cc，σ_ci和σ_cd的确定[J]. 东北大学学报:自然科学版, 2016, 37(12): 1789-1794.
[4]	杨成祥，宋磊博，王刚，龚彦华. CT实时观察下泥岩遇水软化过程的机理[J]. 东北大学学报:自然科学版, 2015, 36(10): 1461-1465.