本文選題：高等級公路 + 開采沉陷��； 參考：《中國礦業(yè)大學(xué)》2017年碩士論文

【摘要】：高等級公路是煤礦區(qū)的重要基礎(chǔ)設(shè)施,許多礦區(qū)面臨高等級公路下壓煤開采的問題,準(zhǔn)確預(yù)計(jì)和評估采動變形對高等級公路的影響是進(jìn)行高等級公路下采煤的前提。本文以南屯礦區(qū)新鄒濟(jì)公路下采煤問題為研究對象,采用現(xiàn)場實(shí)測、理論分析和模擬研究手段,研究了采動影響下公路移動變形和破壞特征、采動區(qū)公路地表與路面變形關(guān)系、采動區(qū)公路變形破壞過程,建立了采動區(qū)公路變形預(yù)計(jì)方法,并編程實(shí)現(xiàn)。論文研究取得如下成果:(1)地表移動與變形傳遞至路基、路面,引起公路路面產(chǎn)生下沉、水平移動、傾斜、水平變形等,改變了公路的幾何結(jié)構(gòu)特征;當(dāng)路面移動與變形值超過限值時(shí),在拉伸區(qū)引起裂縫,在壓縮區(qū)產(chǎn)生路面隆起、路緣石破碎,路面破壞改變了路面的連續(xù)性,路面不平整度顯著增加,嚴(yán)重威脅了公路的安全運(yùn)行。實(shí)測結(jié)果表明,路面下沉值達(dá)到21mm,傾斜變形為0.73mm/m時(shí),路面產(chǎn)生裂縫;壓縮變形達(dá)到1.8mm/m時(shí),路面產(chǎn)生隆起。(2)針對鄒濟(jì)公路這種柔性路面,在公路路面不產(chǎn)生隆起時(shí),路面和對應(yīng)地表的移動變形基本一致,采動影響下路面的下沉要滯后于對應(yīng)地表下沉,路面水平移動要大于地表水平移動值,路面和地表之間并沒有顯著的離層發(fā)育�？梢酝ㄟ^預(yù)計(jì)地表的移動變形值來替代對應(yīng)位置處路面的移動與變形值。(3)針對公路動態(tài)變形預(yù)計(jì)精度低的問題,結(jié)合公路下采煤需要進(jìn)行變形監(jiān)測這一有利條件,提出了一種不斷融入實(shí)測數(shù)據(jù)的高精度開采沉陷動態(tài)預(yù)計(jì)模型;針對預(yù)計(jì)模型中常用的矩形剖分方式對不規(guī)則工作面適應(yīng)度較差的問題,開發(fā)了基于三角形剖分方法的預(yù)計(jì)程序。案例分析結(jié)果表明,融合實(shí)測數(shù)據(jù)的開采沉陷動態(tài)預(yù)測模型預(yù)計(jì)地表最大下沉點(diǎn)的相對誤差優(yōu)于6%。
[Abstract]:High-grade highway is an important infrastructure in coal mining area. Many mining areas are faced with the problem of coal mining under high-grade highway. Accurate prediction and evaluation of the influence of mining deformation on high-grade highway is the premise of mining under high-grade highway.This paper takes the coal mining problem under Xinzou Jigong Road in Nantun Mining area as the research object, and studies the characteristics of highway movement deformation and destruction under the influence of mining, and the relationship between road surface deformation and pavement deformation under the influence of mining movement by field measurement, theoretical analysis and simulation research.In the process of highway deformation and failure in mining area, the method of highway deformation prediction in mining area is established and realized by programming.In this paper, the following results are obtained: 1) the surface movement and deformation are transferred to the roadbed, pavement, causing the road surface to sink, horizontal movement, tilt, horizontal deformation and so on, which changes the geometric structure characteristics of the highway;When the value of pavement movement and deformation exceeds the limit value, cracks are caused in the stretch zone, the road surface bulges are produced in the compression area, the road edge stone is broken, the pavement damage changes the continuity of the road surface, and the road surface irregularity increases significantly.It is a serious threat to the safe operation of the highway.The measured results show that when the pavement subsidence value is 21 mm, when the slope deformation is 0.73mm/m, the pavement cracks occur, and when the compression deformation reaches 1.8mm/m, the road surface produces a bulge. (2) for the flexible road surface of Zou Ji Gong Road, when the road surface does not have a bulge,The movement and deformation of the pavement and the corresponding surface are basically the same, the subsidence of the road surface under the influence of mining is lagging behind the corresponding surface subsidence, the horizontal movement of the road surface is larger than the value of the horizontal movement of the surface, and there is no significant development of the separated layer between the road surface and the surface.In order to solve the problem of low prediction precision of dynamic deformation of highway, we can substitute the displacement and deformation value of pavement at the corresponding position by predicting the moving deformation value of the ground surface, and combine with the favorable condition that coal mining needs to monitor the deformation under the highway.A dynamic prediction model of high precision mining subsidence is put forward, which is continuously integrated with the measured data, and the problem of poor fitness for irregular working face is pointed out in the rectangular subdivision method commonly used in the prediction model.A prediction program based on triangulation is developed.The result of case analysis shows that the relative error of the prediction model of mining subsidence dynamic prediction based on the fusion of measured data is better than that of 6 percent.
【學(xué)位授予單位】：中國礦業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TD325;U418

【參考文獻(xiàn)】

中國期刊全文數(shù)據(jù)庫 前10條

1 張兵;崔希民;胡青峰;;開采沉陷動態(tài)預(yù)計(jì)的正態(tài)分布時(shí)間函數(shù)模型研究[J];煤炭科學(xué)技術(shù);2016年04期

2 劉超;;地質(zhì)采礦因素對拐點(diǎn)偏距的影響[J];中國高新技術(shù)企業(yè);2015年18期

3 陳俊杰;王明遠(yuǎn);;基于遺傳算法的拐點(diǎn)偏移距神經(jīng)網(wǎng)絡(luò)預(yù)測模型構(gòu)建及分析[J];中國地質(zhì)災(zāi)害與防治學(xué)報(bào);2015年02期

4 鄧偉男;張華興;賈林剛;;開采沉陷影響下高速公路變形破壞的試驗(yàn)研究[J];金屬礦山;2015年04期

5 趙軍;唐存彬;查劍鋒;;南屯礦綜采工作面地表移動變形規(guī)律實(shí)測研究[J];煤炭技術(shù);2015年04期

6 谷愷;張召千;仝峰;景康飛;袁博;;改進(jìn)垂線法在高速公路下保護(hù)煤柱留設(shè)中的研究與應(yīng)用[J];煤礦開采;2015年01期

7 張普綱;沈力廣;;運(yùn)營高速公路下煤礦采深、采厚對路基的破壞影響分析[J];山東科技大學(xué)學(xué)報(bào)(自然科學(xué)版);2014年06期

8 元亞菲;鄧喀中;劉輝;陳炳乾;;高等級公路采動破壞特征及治理措施[J];煤礦安全;2014年06期

9 劉炳法;張峰;趙令金;;淺談煤炭資源節(jié)約型開采技術(shù)[J];山東煤炭科技;2013年04期

10 賀躍光;熊莎;吳盛才;;采空區(qū)上方高速公路允許移動變形指標(biāo)研究[J];礦冶工程;2013年02期

中國重要會議論文全文數(shù)據(jù)庫 前1條

1 郭金陵;邵劍鋒;;煤礦開采對高速公路的影響評價(jià)[A];全國“三下”采煤學(xué)術(shù)會議論文集[C];2008年

中國博士學(xué)位論文全文數(shù)據(jù)庫 前4條

1 彭帥英;高速公路下伏多層采空區(qū)地表沉陷數(shù)值模擬及預(yù)測研究[D];吉林大學(xué);2013年

2 劉玉成;開采沉陷的動態(tài)過程及基于關(guān)鍵層理論的沉陷模型[D];重慶大學(xué);2010年

3 常慶糧;膏體充填控制覆巖變形與地表沉陷的理論研究與實(shí)踐[D];中國礦業(yè)大學(xué);2009年

4 楊帆;急傾斜煤層采動覆巖移動模式及機(jī)理研究[D];遼寧工程技術(shù)大學(xué);2006年

中國碩士學(xué)位論文全文數(shù)據(jù)庫 前6條

1 程國鋒;開采沉陷區(qū)對高速公路影響評價(jià)研究[D];西安科技大學(xué);2013年

2 呂磊;厚松散層重復(fù)采動條件下地表移動規(guī)律研究[D];安徽理工大學(xué);2012年

3 孟凡迪;巨厚松散層下地表移動規(guī)律研究[D];河南理工大學(xué);2012年

4 王玉標(biāo);采空區(qū)高速公路路基路面變形破壞規(guī)律與演化分析[D];長沙理工大學(xué);2007年

5 張榮亮;沈大高速公路下壓煤條帶開采的數(shù)值模擬[D];遼寧工程技術(shù)大學(xué);2005年

6 何志攀;新建公路下伏采空區(qū)的穩(wěn)定性分析和治理技術(shù)研究[D];中南大學(xué);2004年

，

本文編號：1748194