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风积沙充填开采应用现状及材料性能研究

王树帅 岳中文 康一强 罗磊

王树帅, 岳中文, 康一强, 罗磊. 风积沙充填开采应用现状及材料性能研究[J]. 矿业科学学报, 2024, 9(2): 217-232. doi: 10.19606/j.cnki.jmst.2024.02.009
引用本文: 王树帅, 岳中文, 康一强, 罗磊. 风积沙充填开采应用现状及材料性能研究[J]. 矿业科学学报, 2024, 9(2): 217-232. doi: 10.19606/j.cnki.jmst.2024.02.009
WANG Shushuai, YUE Zhongwen, KANG Yiqiang, LUO Lei. Research on the application status and material properties of aeolian sand filling mining[J]. Journal of Mining Science and Technology, 2024, 9(2): 217-232. doi: 10.19606/j.cnki.jmst.2024.02.009
Citation: WANG Shushuai, YUE Zhongwen, KANG Yiqiang, LUO Lei. Research on the application status and material properties of aeolian sand filling mining[J]. Journal of Mining Science and Technology, 2024, 9(2): 217-232. doi: 10.19606/j.cnki.jmst.2024.02.009

风积沙充填开采应用现状及材料性能研究

doi: 10.19606/j.cnki.jmst.2024.02.009
基金项目: 

国家自然科学基金 52174095

博士研究生拔尖创新人才培育基金 BBJ2023054

详细信息
    作者简介:

    王树帅(1993—),男,内蒙古赤峰人,博士研究生,主要从事煤矿绿色充填开采与充填材料性能方面的研究工作。Tel:18401624262,E-mail:wsstree@163.com

  • 中图分类号: TD823

Research on the application status and material properties of aeolian sand filling mining

  • 摘要: 风积沙充填开采可实现就地取材、变废为宝,实现煤矿开采与风积沙治理的协同处理。目前,风积沙充填主要应用于公路下伏采空区充填、煤矿充填开采及金属矿充填开采;在充填工艺方面,开发了采空区注浆投沙、固体充填开采、高水充填开采以及胶结充填开采等;在充填技术方面,采用了长壁式充填开采、条带式充填开采和巷式充填开采等。关于风积沙胶结材料性能研究集中于料浆流动性与充填体强度方面。通过分析不同配比与养护时间下风积沙胶结料浆的流变特性,以及采用聚丙烯纤维对风积沙充填体进行韧性改良,发现风积沙胶结料浆流变参数随养护时间而增加,纤维的加入显著改善了风积沙充填体的脆性特征。
  • 图  1  风积沙基础物化性能

    Figure  1.  Basic physicochemical properties of aeolian sand

    图  2  文献发表年份及篇数

    Figure  2.  Publication year and number of references

    图  3  注浆投沙工艺和管口设置

    Figure  3.  Grouting and sand injection process and pipeline settings

    图  4  高水充填与胶结充填系统与工艺

    Figure  4.  High water and cementing backfilling system and technology

    图  5  连采连充充填开采巷道布置与开采模式

    Figure  5.  Layout and mining mode of continuous mining and continuous backfilling

    图  6  连采连充胶结充填开采系统与装备

    Figure  6.  System and equipment of continuous mining and continuous backfilling

    图  7  充填体压缩特性曲线

    Figure  7.  Compression characteristic curve of backfill

    图  8  料浆管道输送示意图

    Figure  8.  Schematic diagram of Slurry pipeline transport

    图  9  试验内容与流程

    Figure  9.  Test content and process

    图  10  流变参数随各因素的变化规律

    Figure  10.  The variation of rheological parameters with each factor

    图  11  流变参数随时间的变化规律

    Figure  11.  The variation of rheological parameters with time

    图  12  纤维增韧充填体应力-应变曲线

    Figure  12.  Stress-strain curve of fiber-toughened backfill

    图  13  充填体强度与应变

    Figure  13.  The strength and strain of backfill

    图  14  不同纤维掺量下充填体破坏形式

    Figure  14.  Failure form of backfill under different fiber dosage

    表  1  风积沙煤矿充填应用现状

    Table  1.   Application status of aeolian sand filling in coal mines

    充填工艺 工程应用 文献与发表年份 研究单位 主要研究内容
    固体充填开采 小纪汗煤矿 [17]/2017 中国矿业大学 固体材料侧限压缩性能
    泰元煤矿 [18]/2019
    榆林矿区 [16]/2014、[19]/2019
    常兴煤矿 [20]/2019
    济三矿(山东) [21]/2017
    水帘洞煤矿 [22]/2021 水帘洞煤炭有限公司
    新疆某矿 [23]/2022 新疆大学
    高水充填开采 榆阳煤矿 [25]/2014 天地科技股份有限公司 充填支架设计与应用
    [26]/2017 榆林职业技术学院 材料性能、工艺设计
    [27]/2018 西安科技大学 材料性能
    陕北矿区 [24]/2013 青岛理工大学 系统研制与设计
    青磁窑煤矿 [28]/2020 青磁窑煤矿 工艺设计
    胶结充填开采 榆卜界矿 [29]/2009 煤科总院开采设计研究院 材料性能、工艺设计工程应用
    榆阳煤矿 [32]/2014、[33]/2016、[38]/2021 天地科技股份有限公司
    [30]/2015 陕西中能煤田有限公司
    [31]/2015 西安科技大学
    [34]/2017、[37]/2020 煤炭科学研究总院
    [35-36]/2016 中煤科工集团西安研究院 材料性能
    常兴煤矿 [39]/2016 中国矿业大学 工艺介绍、效果监测
    [40]/2021 西安科技大学 材料性能
    上河煤矿 [41-42]/2021、[43]/2018 材料性能、工艺设计
    沙沟岔煤矿 [44]/2019、[45]/2020、[46]/2022 材料性能
    永乐煤矿 [47-48]/2021
    小保当矿区 [53]/2021、[54]/2022
    张家峁煤矿 [55]/2017
    陕北矿区 [56]/2012、[58]/2021、[59-60]/2022
    二石磕煤矿 [49]/2018、[50]/2019 中国矿业大学
    金牛煤矿 [51]/2019、[52]/2021
    山东岐山煤矿 [61]/2018
    山东长城三矿 [62]/2020 山东能源新矿集团长城三矿 材料性能、效果分析
    下载: 导出CSV

    表  2  流变试验配比方案

    Table  2.   Proportioning scheme of rheological test

    试验组号 水泥质量分数A/% 胶沙比B 质量浓度C/%
    T1(8-0.6-82) 8 0.6 82
    T2(12-0.6-82) 12 0.6 82
    T3(10-0.4-82) 10 0.4 82
    T4(10-0.8-82) 10 0.8 82
    T5(10-0.6-80) 10 0.6 80
    T6(10-0.6-84) 10 0.6 84
    T7(10-0.6-82) 10 0.6 82
    下载: 导出CSV

    表  3  流变参数与养护时间拟合结果

    Table  3.   Fitting results of rheological parameters and curing Time

    组别 流变参数与时间t的拟合结果 拟合度R2
    T1 τ0= 66.23+0.45 t+1.27×10-3t2 0.999
    T2 τ0= 90.86+0.85 t+2.37×10-3t2 0.999
    T3 τ0= 55.32+0.49 t+1.11×10-3t2 0.985
    T4 τ0= 116.48+0.65 t+3.99×10-3t2 0.999
    T5 τ0= 36.65+0.22 t+8.36×10-4t2 0.999
    T6 τ0= 189.7+0.66 t+5.78×10-3t2 0.996
    T7 τ0= 82.18+0.53 t+1.7×10-3t2 0.999
    T1 η = 0.36+0.002 t+1.41×10-5t2 0.967
    T2 η = 0.65+0.006 t+1.25×10-5t2 0.995
    T3 η = 0.44+0.004 t 0.999
    T4 η = 0.8+0.004 t+2.66×10-5t2 0.993
    T5 η = 0.38+0.002 t+1.25×10-5t2 0.913
    T6 η = 1.18+0.005 t+3.13×10-5t2 0.993
    T7 η = 0.56+0.004 t 0.972
    下载: 导出CSV
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  • 收稿日期:  2023-11-01
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