【摘要】：天馬山硫金礦有著幾十年的開(kāi)采歷史,資源日漸枯竭,由于歷史遺留原因,-215m中段以上有約100萬(wàn)m3空區(qū)未充填,嚴(yán)重影響著礦區(qū)的生產(chǎn)安全。為在-255m中段實(shí)現(xiàn)安全、高效生產(chǎn),充分回收資源,先進(jìn)行現(xiàn)場(chǎng)實(shí)地勘察和相關(guān)的理論研究,再運(yùn)用價(jià)值工程理論、數(shù)值模擬、AHP-TOPSIS法和現(xiàn)場(chǎng)監(jiān)測(cè)等方法對(duì)-255m中段的采礦方法和采場(chǎng)結(jié)構(gòu)參數(shù)進(jìn)行系統(tǒng)分析和深入研究,取得的研究成果如下:(1)經(jīng)過(guò)查詢(xún)相關(guān)資料和現(xiàn)場(chǎng)勘察后,了解礦山的工程地質(zhì)條件和開(kāi)采現(xiàn)狀,確定礦體分布范圍和開(kāi)采技術(shù)條件,為后續(xù)采礦方法選擇提供科學(xué)依據(jù)。(2)根據(jù)礦山地質(zhì)勘探資料和開(kāi)采技術(shù)條件,初步選出上向水平分層充填采礦法、上向水平進(jìn)路充填采礦法及分段空?qǐng)鏊煤蟪涮畈傻V法等3種適合的采礦方案,運(yùn)用價(jià)值工程理論通過(guò)專(zhuān)家對(duì)采礦方法評(píng)判賦值,選取7個(gè)影響采礦方法優(yōu)劣性的因素作為評(píng)判指標(biāo),計(jì)算各方案的價(jià)值系數(shù)依次為33.0%、30.0%和45.0%,選出價(jià)值系數(shù)最高的分段空?qǐng)鏊煤蟪涮罘椴傻V方法,并所選方案進(jìn)行初步設(shè)計(jì),計(jì)算出主要技術(shù)經(jīng)濟(jì)指標(biāo)。(3)運(yùn)用ANSYSA和FLAC_3D聯(lián)合建立完整的礦體模型并進(jìn)行數(shù)值模擬計(jì)算,從應(yīng)力變化、位移變化、塑性區(qū)分布3個(gè)方面對(duì)12種不同規(guī)格的結(jié)構(gòu)參數(shù)進(jìn)行采場(chǎng)穩(wěn)定性分析,選出穩(wěn)定性較好的4種方案,再運(yùn)用層次分析法和逼近理想解排序法從經(jīng)濟(jì)、安全、技術(shù)等3各方面選取7個(gè)指標(biāo)建立AHP-TOPSIS評(píng)判模型進(jìn)行綜合評(píng)價(jià),得出綜合優(yōu)越度最高的采場(chǎng)結(jié)構(gòu)參數(shù)。(4)根據(jù)優(yōu)選的采場(chǎng)結(jié)構(gòu)參數(shù)結(jié)合現(xiàn)場(chǎng)監(jiān)測(cè)經(jīng)驗(yàn),在-255m中段針對(duì)礦體上下盤(pán)圍巖和采場(chǎng)頂板設(shè)計(jì)一套完整的現(xiàn)場(chǎng)監(jiān)測(cè)網(wǎng)路。根據(jù)監(jiān)測(cè)所得的應(yīng)力、位移數(shù)據(jù)進(jìn)行分析,預(yù)測(cè)出應(yīng)力顯現(xiàn)的重點(diǎn)區(qū)域,為采場(chǎng)安全回采提供保障,從而驗(yàn)證了優(yōu)選采礦方案和采場(chǎng)結(jié)構(gòu)參數(shù)的可靠性。
[Abstract]:Tianma Shan sulfur Gold Mine has a history of mining for several decades, and its resources are drying up day by day. Due to the historical legacy, there are about 100 million m ~ 3 empty areas above the middle section of-215m, which seriously affect the production safety of the mining area. In order to realize safety, high efficiency production and full recovery of resources in the middle section of-255m, field investigation and related theoretical research are carried out first, and then value engineering theory is applied to numerical simulation. The mining method and stope structural parameters of-255m middle section are systematically analyzed and deeply studied by AHP-TOPSIS method and site monitoring method. The results are as follows: (1) after querying relevant data and on-site investigation, the research results are as follows: (1) To understand the engineering geological conditions and mining status of mines, to determine the distribution of ore bodies and mining technical conditions, to provide a scientific basis for the selection of subsequent mining methods. (2) according to the mining geological exploration data and mining technical conditions, Three suitable mining schemes, such as upward horizontal layered filling mining method, upward horizontal approach filling mining method and sublevel open-field subsequent filling mining method, are preliminarily selected. The value engineering theory is used to evaluate the mining method by experts. Seven factors affecting the advantages and disadvantages of mining methods are selected as evaluation indexes. The value coefficients of each scheme are 33. 0%, 30. 0% and 45. 0% respectively, and the sublevel open-field subsequent filling method with the highest value coefficient is selected as the mining method, and the value coefficient of each scheme is 33. 0%, 30. 0% and 45. 0% respectively. The main technical and economic indexes are calculated. (3) the complete orebody model is established by ANSYSA and FLAC_3D, and the numerical simulation is carried out, from the change of stress and displacement, the main technical and economic indexes can be calculated from the point of view of stress change and displacement change. In three aspects of plastic zone distribution, the stope stability of 12 kinds of structural parameters of different specifications is analyzed, and four schemes with good stability are selected. Then, the analytic hierarchy process (AHP) and the approximate ideal solution sorting method are used to analyze the stability of the stope from the aspects of economy and safety. Technology and other three aspects select 7 indexes to establish AHP-TOPSIS evaluation model for comprehensive evaluation, get the highest comprehensive superiority of stope structural parameters. (4) according to the optimum stope structural parameters combined with site monitoring experience, In the middle section of-255m, a complete on-site monitoring network is designed for the upper and lower plates of the orebody and the roof of the stope. According to the stress and displacement data obtained from the monitoring, the key area of stress behavior is predicted, which provides a guarantee for safe stoping in stope, and the reliability of optimizing mining scheme and stope structural parameters is verified.
【學(xué)位授予單位】：江西理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TD863

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