發(fā)布時間：2018-04-19 04:11

  本文選題：復(fù)合邊坡 + 穩(wěn)定性�。� 參考：《遼寧工程技術(shù)大學(xué)》2015年碩士論文

【摘要】：露天礦邊坡穩(wěn)定性問題是同時涉及礦山安全和經(jīng)濟(jì)效益的關(guān)鍵問題,神華準(zhǔn)東露天礦首采區(qū)采場東幫、外排土場西幫二者構(gòu)成土-巖復(fù)合邊坡,且采場邊坡、外排土場邊坡基底均為順傾,煤層頂?shù)装宕嬖谲浫鯅A層,均是不利于邊坡穩(wěn)定的影響因素。地面布置有排水渠、輸電線路等設(shè)施,一旦滑坡將產(chǎn)生極大危害。論文以神華準(zhǔn)東露天礦采場、排土場構(gòu)成的土巖復(fù)合邊坡為工程背景,綜合運用現(xiàn)場調(diào)研、理論分析、極限平衡、數(shù)值模擬等方法和手段,對影響邊坡對影響邊坡穩(wěn)定性的因素進(jìn)行探討,分析邊坡的潛在滑坡模式；優(yōu)化確定采場東幫、排土場西幫的穩(wěn)定幫坡角,同時對二者構(gòu)成的復(fù)合邊坡進(jìn)行穩(wěn)定性分析,確定采場與排土場的安全距離；通過數(shù)值模擬手段對采場、排土場及二者構(gòu)成的復(fù)合邊坡的失穩(wěn)變形破壞規(guī)律和機(jī)理進(jìn)行研究。研究結(jié)果表明：準(zhǔn)東露天礦采場-排土場復(fù)合邊坡主要受巖土體物理學(xué)性質(zhì)、層位順傾、煤層頂?shù)装迦鯇涌刂?滑坡模式為沿排棄物內(nèi)部的圓弧滑動和以坡體出露弱層面為底界面的組合滑動。當(dāng)采場為34°、排土場23°、安全距離為150m時復(fù)合邊坡可滿足安全儲備要求。
[Abstract]:The stability of open - pit slope is the key problem of mine safety and economic benefit . Both the east and the west side of the mining area of Shenghua quasi - east open - pit mining area form the soil - rock composite slope , and the slope of the mining field and the slope of the outer drainage area are the factors which are unfavorable to the stability of the side slope . The paper takes Shenghua quasi - east open pit mining field and the earth - rock composite slope as the engineering background , and comprehensively applies the field investigation , the theoretical analysis , the limit balance and the numerical simulation to study the factors that influence the stability of the slope , and analyzes the potential landslide model of the slope ;
the stability analysis of the composite slope composed of the two components is optimized to determine the safe distance between the mining field and the dump site ;
The failure law and mechanism of the composite slope composed of stope , dump and both are studied by numerical simulation . The results show that the composite slope of quasi - east open pit mining field - dump site is mainly controlled by the physical property , bedding forward inclination and weak layer control of the coal bed top floor . The landslide model is the combination sliding along the circular arc sliding inside the waste dump and the weak layer of slope body as the bottom interface . When the mining field is 34 擄 , the dump field is 23 擄 , the safety distance is 150 m , the composite slope can meet the safety reserve requirement .

【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD824.7

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 曹蘭柱;霍麗紅;;順傾軟巖邊坡穩(wěn)定性分析與防治[J];科技導(dǎo)報;2011年36期

2 陳韻俊;韓永林;張立紅;;基于遺傳神經(jīng)網(wǎng)絡(luò)的高邊坡位移分析方法研究[J];水電能源科學(xué);2010年08期

3 周桂云;李同春;;基于靜動力有限元的邊坡抗震穩(wěn)定分析方法[J];巖土力學(xué);2010年07期

4 劉士佳;沈振中;呂生璽;王建文;;九甸峽水電站廠房后邊坡穩(wěn)定有限元分析[J];南水北調(diào)與水利科技;2009年02期

5 楊俊青;段亞輝;;江坪河水電站溢洪道進(jìn)口高邊坡穩(wěn)定分析[J];水電能源科學(xué);2008年05期

6 王功海;白潤才;曹蘭柱;;元寶山露天煤礦排土場邊坡穩(wěn)定性FLAC模擬[J];露天采礦技術(shù);2007年06期

7 張均鋒,王思瑩,祈濤;邊坡穩(wěn)定分析的三維Spencer法[J];巖石力學(xué)與工程學(xué)報;2005年19期

8 殷坤龍,韓再生,李志中;國際滑坡研究的新進(jìn)展[J];水文地質(zhì)工程地質(zhì);2000年05期

9 黃昌乾,丁恩保;邊坡工程常用穩(wěn)定性分析方法[J];水電站設(shè)計;1999年01期

，

本文編號：1771519