綜放采場外錯(cuò)布置區(qū)段巷道減沖機(jī)理與關(guān)鍵技術(shù)
發(fā)布時(shí)間:2018-07-12 18:18
本文選題:綜放采場 + 區(qū)段巷道。 參考:《煤炭學(xué)報(bào)》2016年03期
【摘要】:針對寬、窄、無煤柱區(qū)段巷道防沖存在的問題,提出了沿空巷道外錯(cuò)合理位態(tài)減沖設(shè)計(jì)方法。通過建立覆巖結(jié)構(gòu)模型、底板梁-柱模型,結(jié)合現(xiàn)場實(shí)測等,分析"應(yīng)力場特征-減沖"關(guān)系、"卸壓保護(hù)空間尺度-減沖"關(guān)系,揭示了外錯(cuò)布置減沖機(jī)理。研究成果在華豐煤礦埋深超千米綜放采場實(shí)施,確定了外錯(cuò)布置沿空區(qū)段巷道的合理位態(tài),同步構(gòu)建了兼顧頂板治理、支護(hù)結(jié)構(gòu)減沖、易發(fā)火控制、高效掘進(jìn)及開采、合理驗(yàn)證與預(yù)警的系統(tǒng)關(guān)鍵技術(shù),解決了以往沿空巷道防沖難度大、變形大難以控制、難以實(shí)現(xiàn)無煤柱開采等相關(guān)工程問題。
[Abstract]:Aiming at the existing problems of roadway scour prevention in wide, narrow and no coal pillar section, this paper puts forward a reasonable position reduction design method for outside-fault of roadway along goaf. Through the establishment of overburden structure model, floor beam-column model and field measurement, the relationship between "stress field characteristics and impact reduction" and "pressure relief protection space scale-impact reduction" is analyzed, and the mechanism of external fault arrangement is revealed. The research results are carried out in Huafeng coal mine, the reasonable position of the roadway along the goaf is determined, the roof treatment, the supporting structure reducing the impact, the fire easily controlling, the high efficiency tunneling and mining are constructed simultaneously, which is carried out in the fully mechanized caving stope of Huafeng coal mine. The key technologies of reasonable verification and early warning system have solved the related engineering problems, such as the difficulty of anti-scouring, the difficulty of controlling deformation and the difficulty of mining without coal pillar in the past.
【作者單位】: 安徽理工大學(xué)煤礦安全高效開采省部共建教育部重點(diǎn)實(shí)驗(yàn)室;山東科技大學(xué)山東省礦山災(zāi)害預(yù)防控制國家重點(diǎn)實(shí)驗(yàn)室培育基地;新汶礦業(yè)集團(tuán)有限責(zé)任公司華豐煤礦;
【基金】:國家自然科學(xué)基金資助項(xiàng)目(51174002) 山東省礦山災(zāi)害預(yù)防控制國家重點(diǎn)實(shí)驗(yàn)室培育基地開放基金資助項(xiàng)目(MDPC2012KF02)
【分類號】:TD324
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本文編號:2118066
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