本文關(guān)鍵詞： 非全深凍結(jié)法 富水洛河砂巖 立井 滲流與應(yīng)力耦合 三維有限元模擬 井筒涌水機(jī)理 防治方案　出處：《西安科技大學(xué)》2013年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：開(kāi)展非全深凍結(jié)法立井施工井筒解凍后涌水規(guī)律與防治技術(shù)研究具有重要的工程應(yīng)用價(jià)值，本文以小莊煤礦主立非全深凍結(jié)法鑿井工程為依托，采用室內(nèi)試驗(yàn)、理論分析和現(xiàn)場(chǎng)實(shí)踐相結(jié)合的手段開(kāi)展研究工作，主要結(jié)論有： （1）完成了洛河砂巖在常溫、凍結(jié)、融化三種狀態(tài)下的物理力學(xué)試驗(yàn)。為確定非全深凍結(jié)法施工決策的理論基礎(chǔ)，分析解凍后立井井筒涌水機(jī)理提供了物理力學(xué)參數(shù)。 （2）運(yùn)用滲流與應(yīng)力耦合彈塑性三維有限元分析模擬了普通法和非全深凍結(jié)法鑿井穿越富水洛河砂巖地層的施工過(guò)程，研究了凍結(jié)壁的應(yīng)力和變形分布規(guī)律，分析了普通法施工的可行性和非全深凍結(jié)法施工凍結(jié)壁的穩(wěn)定性。 （3）基于對(duì)小莊煤礦主井周?chē)貙铀牡刭|(zhì)賦存條件的分析，以及三維有限元對(duì)普通法鑿井可行性和非全深凍結(jié)法鑿井凍結(jié)壁穩(wěn)定性的研究結(jié)果，得到了處于富水洛河砂巖地層的小莊煤礦主井采用非全深凍結(jié)法鑿井方案決策的理論基礎(chǔ)。將得到的非全深凍結(jié)法鑿井方案決策的理論基礎(chǔ)用于小莊煤礦主井施工方案決策中。 （4）研究了非全深凍結(jié)法施工解凍后的三個(gè)主要涌水通道，采用三維有限元模擬方法計(jì)算了主井井筒主要滲漏水區(qū)間和涌水量�；凇案叩蛪翰⒂茫顪\孔結(jié)合，單液為主雙液為輔”的原則，設(shè)計(jì)了小莊礦主立井解凍后涌水防治方案。工程實(shí)踐表明，井筒涌水防治方案合理有效。
[Abstract]:The research work is carried out by means of laboratory test , theoretical analysis and field practice . The main conclusions are as follows : ( 1 ) The physical and mechanical tests of the Luohe sandstone under normal temperature , freezing and thawing are completed . In order to determine the theoretical basis of the construction decision of the non - full - depth freezing method , the physical and mechanical parameters are provided for the analysis of the water kick mechanism of the well bore after thawing . ( 2 ) By using the elastic - plastic three - dimensional finite element analysis of seepage and stress coupling , the construction process of common law and non - deep freezing method is simulated and the stress and deformation distribution law of frozen wall is studied , and the feasibility of common law construction and the stability of frozen wall of non - deep freezing method are analyzed . ( 3 ) Based on the analysis of the geological occurrence condition of the formation around the main shaft of Xiaozhuang coal mine , and the results of three - dimensional finite element method to study the feasibility and the stability of the freezing wall of the non - full - deep freezing method , the theoretical basis for the decision - making of the deep freezing method is obtained . The theoretical basis for the decision - making of the non - full - depth freezing method is used in the decision - making of the construction scheme of Xiaozhuang coal mine main shaft . ( 4 ) Three main water inflow channels after thawing in the non - full - depth freezing method are studied , and the main seepage water interval and the water inflow in the main shaft are calculated by using the three - dimensional finite element simulation method . Based on the principle of " high and low pressure and combined with deep and shallow holes and single liquid as the auxiliary " , a scheme for preventing and controlling the water kick after thawing of the main shaft of Xiaozhuang Mine is designed . The engineering practice shows that the scheme for preventing and controlling the water kick in the well bore is reasonable and effective .

【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TD265.3;TD745

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