海底基岩矿床开采断层破碎带突水固-流-化学耦合模型及试验研究
结题报告
批准号:
52004332
项目类别:
青年科学基金项目
资助金额:
24.0 万元
负责人:
周清龙
依托单位:
学科分类:
安全科学与工程
结题年份:
2023
批准年份:
2020
项目状态:
已结题
项目参与者:
周清龙
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中文摘要
目前,我国在海底基岩矿床的开采中面临着严重的断层破碎带突水问题。由于海底矿床独特的地质结构、开采布置和水化学环境,海底采动断层破碎带的突水受开采扰动、海水压、水化学腐蚀多重因素共同影响,其本质是一个复杂的固-流-化学多场耦合问题。以我国首例海底开采的金属矿山-三山岛海底金矿的开采工程为研究背景,本项目从试验和理论模型两个方面对这一多场耦合问题展开研究。研究首先通过试验及理论推导,获得海底矿床断层破碎带岩体在耦合环境下的渗透特性和水化学腐蚀模型,在此基础上进一步建立采动断层破碎带突水固-流-化学多场耦合理论模型,最后开展相应的海底开采固-流-化学耦合相似模拟试验研究。项目以期通过将理论模型研究与试验研究相对比相验证的方式,准确揭示多场耦合作用下海底采动断层突水演化过程多场信息的演化特征及规律,阐明各主控因素对突水演化的影响。本项目的研究将为我国海底开采断层突水防控提供重要理论支持。
英文摘要
At present, the mining of the seabed deposits in China faces a serious problem of fault-related seawater inrush. Due to the special geological structure, mining design and hydrochemical environment of the seabed deposits, the fault-related seawater inrush in subsea mining is jointly affected by multiple factors including the mining-induced stress disturbance, the seawater pressure and the hydrochemical corrosion, so its core is a complex solid-fluid-chemistry multi-field coupling problem. In this project, taking the first subsea metal mining in China (Sanshan Island Gold Mine) as the research background, we are going to study on this multi-field coupling problem from the aspects of experiment and theoretical model. Through an experimental research and a theoretical derivation, the project firstly starts by obtaining the permeability characteristics and the hydrochemical corrosion model of the fault rock, next a solid-fluid-chemical coupling model for the fault-related water inrush in subsea mining will be established with the use of corresponding coupling theory, and then a corresponding solid-fluid-chemical coupling similar simulation experiment will be carried out in the end. By the way of comparing and verifying the theoretical model research to the experimental research, this project expects to achieve a precise revelation on the response characteristics and evolution laws of the multi-field for the entire process of the fault-related water inrush in subsea mining , and to reveal the role of each main control factor in the process of water inrush. The research of this project will provide a strong theoretical support for the prevention and controlling of fault-related water inrush in subsea mining for our country.
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DOI:10.1061/(asce)gm.1943-5622.0002554
发表时间:2022-11
期刊:International Journal of Geomechanics
影响因子:3.7
作者:Qinglong Zhou;Dapeng Liu
通讯作者:Qinglong Zhou;Dapeng Liu
DOI:10.3390/app14020925
发表时间:2024-01-01
期刊:APPLIED SCIENCES-BASEL
影响因子:2.7
作者:Zeng,Xinyan;Lin,Wancang;Zhou,Qinglong
通讯作者:Zhou,Qinglong
DOI:10.1080/19475705.2022.2032401
发表时间:2022-01
期刊:Geomatics, Natural Hazards and Risk
影响因子:--
作者:Qinglong Zhou;D. Liu;Xudong Lin
通讯作者:Qinglong Zhou;D. Liu;Xudong Lin
变主应力空间环境下采动断层活化倾向性定量评价
  • 批准号:
    2020JJ5762
  • 项目类别:
    省市级项目
  • 资助金额:
    0.0万元
  • 批准年份:
    2020
  • 负责人:
    周清龙
  • 依托单位:
国内基金
海外基金