杨桃直播平台官方app下载-杨桃直播最新下载安装-杨桃直播软件下载安卓手机

　　從安全生產(chǎn)、機械化或自動化開采、共伴生資源共同開采、保護(hù)環(huán)境、降低開采直接成本、資源利用最大化、科學(xué)規(guī)劃等方面詳細(xì)闡述了煤炭科學(xué)開采的基本要求。介紹了國內(nèi)外在煤炭科學(xué)開采方面的研究現(xiàn)狀與進(jìn)展，對比分析了國內(nèi)外科學(xué)開采的共同點與差異。提出了我國實現(xiàn)煤炭科學(xué)開采需要從技術(shù)進(jìn)步、思想觀念、法律法規(guī)、基礎(chǔ)研究與人才培養(yǎng)等方面入手。提出了煤炭開采今后需要在采礦開挖卸荷與偏應(yīng)力作用、采動應(yīng)力場動態(tài)變化、深部煤巖體的力學(xué)行為、煤巖柱的長期強度、采場的系統(tǒng)剛度等10個方面加強研究。

　　The basic requirements of sustainable coal mining were described in detail from various aspects-safe mining,automatic mining,co-mining of coal and accompany resources,environment protection,direct cost reduction of mining,maximization of resource utilizing and sustainable planning.Overseas and domestic research status and progress of sustainable coal mining were introduced to make a comparative analysis for similarities and differences.Accordingly,the realization of domestic sustainable coal mining was proposed to focus on five aspects-technical development,ideological progress,optimization for laws and regulations,basic researches and talent cultivation.At last,coal mining was suggested to be continuously studied from all ten aspects-mining including unloading and deviatoric stress,dynamic change in mining stress field,mechanical behavior of deep coal-rock mass,long-term strength of coal-rock pillar,stiffness of stope system,etc.

　　國家自然科學(xué)基金資助項目(U1361209,51674264)；中國工程院咨詢研究資助項目(2015-NY-2)