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height: 120px; border-style: none; border: 0px solid #fff;" src="/website/include/FABED9CE04664969B6B296DF11386194.html"></iframe> <!-- 文章 start--> <div class="container"> <div class="enterprise-info-box"> <div class="enterprise-info-category-descr"> <img src="/resource/website/article/Content/img/enterprise-info-category-descr.jpg" /> <a href="/index.html">首页</a> >> <a href="/website/article/11/index.html">文献频道</a> >> <a href="/website/article/1110/index.html">矿业论文</a> >> 正文 </div> <div class="enterprise-info-mainbody"> <span id="id" style="display: none;">973E9E1FC7CD4854ADBABFAD4AA81C68</span> <div class="title">废弃采空区地基稳定性极评h指标体系构徏</div> <div class="sub-title">2019-09-29</div> <!-- D start --> <div class="introduction"> 废弃采空Z良地基残余变形威胁其上方拟徏工程的运营安全,对其开发利用前需q行地基E_?评hQ而当前地基稳定性评h标体pM因素UL复杂且数量庞大,极易D评hl果失去U学性和合理性。以 沛_古汉q和吴村矿废弃采空Z方的武云高速徏设ؓ例,Z研究区域的实际地质采矿环境,首先遵从唯一 性、目的性、可行性和可观性四大原则对初选指标进行定性筛选;其次Q基于改q灰色关联度法对定性筛选出 的结果再ơ进行定量筛选,定了煤层埋深、徏(?{物药扰动深度与导水裂隙带垂向间距以及停采旉作ؓ?h标,q而构Z适用于武云高速徏讑֜基稳定性评判的极简评h指标体系Q通过引入效度pL和相x系?分析?.. </div> <!-- D start --> <!-- 正文 --> <div class="mainbody"> <div style="display:none"> Series No. 519 ? ? ? ? ȝ 519 ? September 2019 METAL MINE 2019 q第 9 ? 废弃采空区地基稳定性极评h指标体系构徏 1 Q? 3 1 11 ? 郭庆? 李英? ? ? ? Q? 1. 安徽理工大学绘学院Q安?淮南 232001Q?. 煤炭资源与安全开采国安点实验室Q江?徐州 221116Q? 3 . 安徽理工大学能源与安全学院,安徽 淮南 232001Q? ??废弃采空Z良地基残余变形威胁其上方拟徏工程的运营安全,对其开发利用前需q行地基E_? 评hQ而当前地基稳定性评h标体pM因素UL复杂且数量庞大,极易D评hl果失去U学性和合理性。以 沛_古汉q和吴村矿废弃采空Z方的武云高速徏设ؓ例,Z研究区域的实际地质采矿环境,首先遵从唯一 性、目的性、可行性和可观性四大原则对初选指标进行定性筛选;其次Q基于改q灰色关联度法对定性筛选出 的结果再ơ进行定量筛选,定了煤层埋深、徏(?{物药扰动深度与导水裂隙带垂向间距以及停采旉作ؓ? h标,q而构Z适用于武云高速徏讑֜基稳定性评判的极简评h指标体系Q通过引入效度pL和相x系? 分析了该指标体系的有效性和可靠性。研I表明:q用所构徏的极指标体系评h武云高速徏讑֜基处于基本稳 定状态,评hl果与其他指标体pȝ评hl果较一_且由于所构徏的指标体pM含有 3 个主要指标,可极大减? pȝ的计负担,化评估过E? 关键?废弃采空?地基E_?指标{?改进灰联度算? 中图分类?TD353 文献标志?A 文章~号 1001-1250Q?019Q?09-179-06 DOI 10.19614/j.cnki.jsks.201909029 Construction of Minimalist Foundation Stability Evaluation Index System for Abandoned Goaf 1Q? 3 1 12 Guo Qingbiao Li Yingming Wang Liang Lu Xin Q?. Anhui University of Science and TechnologyQHuainan 232001QChinaQ?. State Key Laboratory of Coal Resources and Safe MiningQXuzhou 221116QChinaQ?. School of Energy and SafetyQAnhui University of Science and TechnologyQ? Huainan 232001QChinaQ? Abstract The residual deformation of foundation in an abandoned goaf threatens the safety operation of the proposed projectQand the foundation stability evaluation is required before its development and utilization. HoweverQthe current foun? dation stability evaluation index system is complicatedQwhich can easily lead to unscientific and unreasonable evaluation re? sults. In view of thisQthis paper takes the Wuyun expressway construction as an exampleQwhich is located above the aban? doned goaf of Guhanshan Mine and Wucun Mine in Henan Province.First of allQaccording to the four principles of uniquenessQ? purposeQfeasibility and observabilityQqualitative screening is conducted.SecondlyQscreened quantitatively is conducted based on the theory of improved grey relational degreeQand then a minimalist stability evaluation system suitable for Wuyun expressway construction foundation is established.The effectiveness and reliability of established minimalist stability evalua? tion system is analyzed by using the validity coefficient and correlation coefficient.Wuyun expressway construction foundation is convicted in a basically stable state by using the proposed minimalist stability evaluation systemQand the evaluation result is consistent with those of other evaluation index systemsQconfirming its accuracy. Because the minimalist stability evaluation system only contains three main indicatorsQit can greatly reduce the calculation burden of the system and simplify the evalua? tion process. Keywords Abandoned goafQFoundation stabilityQIndexes screeningQImproved grey relational degree algorithm 收稿日期 2019-07-24 基金目 国家自然U学基金目Q编P51574006Q,煤炭资源与安全开采国安点实验室开攄I基金项目(~号QSKLCRSM19KF005Q,安徽 理工大学国家自然U学基金预研目Q编PYY201802Q,安徽理工大学博士U研启动基金目Q编P11953Q? 作者简?郭庆彪(1990—)Q男Q讲师,博士。通讯作?李英明(1975—)Q男Q教授,博士Q博士研I生导师? · 179 · ȝ519? ? ? ? ? 2019q第9? 废弃采空区内赋存大量I洞、空隙,在内外荷? 耦合扰动下,其内部空z、空隙被压密Q由此释攑և Ud变Şq向上逐层传递,直至地表Q引起地表(? {地基)产生D余变ŞQ威胁其上方拟徏工程安全q? 营。ؓ此,在进行废弃采I区土地资源开发利用前Q? 有必要进行地基稳定性评仗废弃采I区地基E_ 性与煤层埋深、采厚、地质构造、覆岩岩性、开采方? {多因素密切相关Q得地基稳定性评h一Ҏ 的实际地质采矿环境,开展研I区域地基稳定性评 价主要指标的{选研IӞq而构建适用于武云高? 地基E_性评L极简评h体系? 1 工程概况 武云高速位于河南省焦作市修武县、武陟县? 内,是河南省高速公路“十一五”规划的重点工程? q研资料可知,武云高?K29+335~K33+000 ?D?I????????????Q其 ?K30 + 800~K32+900路段位于老采I区上方Q二者之间^? 相对位置关系如图1所C? Q?-2Q? 其复杂的pȝ工程Q其E_状态难以精评? Q?Q? ? 吴启U等 q用多模糊评判理论Q选取 15 个评? 因子Q徏立了矿山采空区稳定性的IIU模p综合评? 模型Qƈ该模型应用于具体工E,其评L果与? 研究区地表v?90~115 mQ^均坡?0.542 1%? 下伏采空区均为全部垮落法理板。浅部地层主 要ؓW四pd层,深部地层主要Z叠系地层Q地? q_倾角?5Q区内基本构造轮廓ؓ向南东倾斜? ????Q仅 ?K30 + 520~K29 + 650 ??K29 + 520~K29+650D下方赋存团相断层和油坊蒋村断层Q? 断层数量? Q? 4Q? 际情늛dQ高峰等 Ҏ采空区稳定性评价中? h标间交互作用机制Q提ZZ RES-云模型的 采空区稳定性二l评h法,q将其应用于云南? Q?Q? Q?Q? 锡矿Q验证了该模型的可行?Q邓U卫{?建立? Z不确定型层次分析法(UAHPQ的采空区稳定性模 p评h法,有效解决了评h标权重确定难题;? 2 武云高速徏讑֜基稳定性评h标筛? 2. 1 定性筛? Q? 6Q? 宪久 选取了工E地质环境、岩体质量、采I区几何? 数和围岩应力{因素构Z采空区稳定性评h? 体系Q基于功效系数法原理Q采用三标度改进层次? 析法定了各评h指标的权重系敎ͼ建立了采I区E? 定性评价分U新模型Q其适用性和可靠性得C工程 l合废弃采空区地基稳定性评L研究? 15-16Q? Q梳理ƈ归纳了与武云高速徏讑֜基稳定? Q? ? 有关的评h标,如表1所C? p1可知Q与武云高速徏讑֜基稳定性有关的 评h指标众多Q部分指标之间具有一定的相关性,? 达信息冗余,如此庞大的指标集不仅大幅增加计算? 作量Q还会E化主要评h标的重要E度。ؓ此,? 研究遵@唯一性、目的性、可行性和可观性四大原 则,首先q行定性筛选,以保证定性筛选后的指标可 q一步进行量化分析。其中唯一性、目的性、可行? 和可观测性原则可表述为:①唯一性,删除信息重叠? 冗余和无用指?②目的性,删除无法切实反应废弃 采空区地基稳定性特征的指标Q③可行性,{选出? 指标数据能够保质保量获取Q④可观性,无论是直 接还是间接观,{选出的指标必d义清晰、明? Z上述原则Q对?1 中的指标q行了定性筛 选,{选后的结果如?所C? Q? 7Q? 实际的有效验证;康钦容等 采用l合指数Ҏ对大 面积矌矉KI区q的危险性进行了l合评h? 上述研究表明Q将非线性科学理论应用于评h采空? Q? 8-11Q? E_性近q来得到了广大学者们的深入研I? ? 反观上述非线性评h型,学者们为全面反? 废弃采空区地基稳定性的真实状态,从水文地质、采 I区自n及外药扰动{方面选取较多的评h 标,构徏多维量化评h指标体系。然而,在实际应? 中,评h指标q多好Q庞大的指标体系极易? Q? 12-14Q? 致评L果失ȝ学性和合理? Q存在的不? 要有Q①庞大的指标体pM不可避免地存在着相关 性指标,表达信息冗余Q增加计成本;②过多的? h标容易引赯仯判断上的错觉和混ؕQ导? 关键指标权重减小Q造成评hl果qQ③׃评h 者对于定性指标的理解各不相同Q在采用同一指标 体系评h相同目标Ӟ会生相差较大的评hl果Q? x标体pȝE_性和可靠性较差? 2. 2 定量{? 本研I用改q的灰色兌度算法对上述定? {选后的指标进行二ơ筛选? 2. 2. 1 改进的灰色关联度模型 为避免上q问题,有必要对E_性评h标进 行有效筛选,在庞大的指标体系中筛选出量h 重要参考h值的指标Q进而构建废弃采I区地基E? 定性评L极简化指标体pR本研究以河南武云高 速穿废弃采I区的具体工Eؓ例,Ҏ研究区域 灰色兌是将h数据分ؓ参考数据和评h? 据,分别计算各评h据与参考数据间的关联度Q关 Q? 17-18Q? 联度大Q则该评h据越重要 。传l灰色关? 度计易受分辨系数取值的影响Q计结果具有主 观不定性,影响最l决{。本研究采用改进的灰 · 180 · 郭庆彪等Q废弃采I区地基E_性极评h指标体系构徏 2019q第9? 色关联度Ҏ标权重进行求解,具体q程如下? 1Q邀请m位行业内专家同时对n个指标进行权 重赋|得到表征指标权重的矩?D Q? éd11 d d21 d22 ... d2m 12 ... d ù 1m ú ^ D = Q? Q?Q? ^ ^ ú ú . .. ... ... ... dn1 dn2 ... dnm ë ] 式中Qdnm 为第 m 个专家对W?n 个待{选指标权重的 评定倹{? Q?Q从矩阵 D 中每列挑选出最大g为参考| l成参考向?D0 · 181 · ȝ519? ? ? ? ? 2019q第9? D0 = { d01,d02,d03,?d0m} Q? Q?Q? 式,d0m 为第m位专家确定的参考权重? Q? 3Q求取各个指标与参考指标数据之间的距离Q? m 2 D0i = (d0k - dik) Q? Q?Q? ? k = 1 式中QD0i 为第 i 个指标与参考指标之间的距离Qdik 为第k位专家对Wi个指标赋予的权倹{? Q?Q计各指标的权重。公式ؓ wi = 1/(1 + D0i) Q? Q?Q? n - w = wi / wi Q? ? i = 1 Q?Q? i - p进行评hQ对问题的认识是否趋向一_趋? 一_则指标体pȝ有效性越高,也就能反应实际 情况。本研究采用效度pL来判定筛选后指标的有 式中Qw 为第i个指标的权重? 为第 i 个指标与参考指标数据的兌度;wi i 2 . 2. 2 武云高速徏讑֜基稳定性评h标定量筛? 邀请业?5 名专家结合武云高速徏讑֜基的? Q?9-20Q? 效? ? 设评价体p?F ={ f1,f2,?fi,⋯fn} Q参加评L? ????SQ专 ?j ?????????? 际地质采矿环境,对表 2 中的评h指标q行权重? |形成了指标权重矩阵D é0.25 0.18 0.20 0.20 0.24ù X = { x 1j,x2j,?xij,?xnj } S Q定义指?f 的效度系Cؓ i ^0.10 0.12 0.18 0.15 0.13ú ^ ú ú ú . ? ^0.06 0.10 0.08 0.07 0.08ú ^ βi = |xi - xij| SM Q? Q?Q? ? ^0.10 0.13 0.09 0.10 0.10ú ^ j = 1 D = Q?Q? ^0.05 0.08 0.05 0.04 0.05ú ^ ú ú ? ^0.04 0.04 0.05 0.04 0.05ú ^ 式中QM为指?fi 的评分集中评分最优|xi ? ^0.18 0.15 0.15 0.18 0.15ú ^ ú ë0.22 0.20 0.20 0.22 0.20] 由此l成参考向?D0 D0 = 0.25,0.20,0.20,0.22,0.24 指标 fi 得分q_|可由下式计算? S ? xi = xij S . Q?Q? ? { } . Q?Q? j = 1 则由{选后指标体系F的效度系Cؓ 联合式(3Q~式(5Q,计算的定性筛选后的指标权 重如?所C? n β = βi n . Q?0Q? ? i = 1 效度pL小Q表明指标体pȝ有效性越高? 一般情况下Q当指标体系效度数于 0.1 Ӟ则该 指标体系的有效性较高。结合式Q?Q与式(8Q~Q?0Q, 计算的图 2 指标评h体系的效度系Cؓ 0.076Q即? 研究建立的武云高速徏讑֜基稳定性评h标体p? 有效性较高? 3 . 2 可靠性分? 若多个专安用相同的评h指标体系q行E_ 性评hQ评L果差异较,则认指标体系? 靠性强。本研究采用相关pL分析武云高速徏讑֜ Q? 19-20Q? 分析?可知Q与武云高速徏讑֜基稳定性关? 度最高的?3 个指标分别是指标 1、指?8 和指?7Q? 即煤层埋深、采I区停采旉和徏Q构Q筑物荷载扰 动深度与导水裂隙带垂向间距这 3 个指标最能代? 原始的评h标体p,如图2所C? 基稳定性评h标体pȝ可靠? 。设专家l评 分的q_数据l?Y ={y1,y2,?yi,?yn} Q其? S yi = xij S . Q?1Q? Q?2Q? ? j = 1 则指标体pd靠性系Cؓ S 3 {选指标的有效性和可靠? . 1 有效性分? ρ = ρj S Q? ? 3 j = 1 {选指标的有效性是指不同专安用该指标? 式中Qρj 可由下式计算? · 182 · 郭庆彪等Q废弃采I区地基E_性极评h指标体系构徏 2019q第9? n ? xij - x ÷çyi - y j ? ì 废弃采空区地基稳定性评h标的{选流E,包括 指标初选、定性筛选和定量{选。在对初选指标定 性筛选后Q采用改q灰色关联度法q一步进行定 量筛选,最l确定煤层埋深、采I区停采旉和徏 Q构Q筑物荷载扰动深度与导水裂隙带垂向间距ؓ? 要指标,来评h云高速徏讑֜基的E_性? æ öæ ö ÷ ç ؈ ï ï ? ø؈ ø i = 1 ïρj = ï n 2 n 2 ï ï ? ? æ ö æ ç yi - y ? ؈ i = 1 ö ç xij - x ÷ ÷ ï ï ? j ؈ ø ø i = 1 . Q?3Q? T n ? ï ï xj = xij n ï ï ? i = 1 n ï ï ? ï y = yi n ï ? Q?Q利用筛选出?个指标徏立了适用于武云高 î i = 1 速徏讑֜基稳定性评L极简指标体系Q引入效? pL和相x系敎ͼ分析得到该评h标体pd? 较高的有效性和可靠性? 一般情况下Q当 ρ ? 价体pd靠性较高;?ρ ? 评h体系可靠性一般;?ρ ? ( 0.90,0.95 ) Ӟ可认? ( 0.80Q?.90 ) Ӟ可认 ( 0Q?.80 Ӟ可认 ) Q?Q运用本研究构徏的极评h指标体系判定 评h体系可靠性较差。结合上式计的可靠性系? ?0.906Q即本研I构建的武云高速徏讑֜基稳定? 评h指标体系可靠性较高? 武云高速徏讑֜基处于基本稳定状态,通过在\? 中加铺土工格栅的方式卛_保证武云高速公路运? 安全。该评hl果与其他评h标体pȝ评hl果 一_表明该评h标体p能够有效评估武云高? 地基的稳定状态,且由于该指标体系仅含?? 指标Q有助于大幅减轻pȝ的计负担,化评仯 E? 4 武云高速徏讑֜基稳定状态评? 以模p综合评判理Zؓ基础Q采用本研究构徏 的极评h指标体系Ҏ云高速徏讑֜基的E_? q行了评仗对?数据q行了标准化处理Q得到评 价体pM的指标权重,如表4所C? ???? Q?Q?郭庆?煤矿老采I区上方高速公路徏讑֮全性评价及其关? 技术研IӞEDQ?徐州Q中国矿业大学,2017. Guo Qingbiao.Research on the Safety Evaluation and Key Technolo? gies for the Expressway Construction on Old Goaf of Coal MineQDQ? Xuzhou:China University of Mining and TechnologyQ?017. 参考文献E20Q中上述3个指标的隶属度取|? Q?Q? ? 锋,郭广C|万战胜,{?煤矿老采I区上方高速公路徏讑֜ Q? 14Q)Q选取 M(?·) 子q行模糊合成q算Q最l判 地稳定性评PEJQ?金属矿山Q?017Q?1Q:137-144. 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