本文選題：超前探水 + TRT6000�。� 參考：《中南大學》2013年碩士論文

【摘要】：摘要：河南三門峽礦段村-雷溝鋁土礦工程地質(zhì)復雜,突水、溶洞、破碎帶一直是本礦山基建過程中的難題,井巷設計要求必須遵循“有疑必探、先探后掘”的方針,以確保施工安全。目前施工采用傳統(tǒng)的鉆孔探測,采用潛孔鉆機打探測孔,探測距離有限,進度緩慢,費用偏高,操作性較差,極大拖延了施工進度,造成礦山基建工期滯后,影響礦山的整體經(jīng)濟效益。 本文通過在井下多個巷道開展的TRT6000超前探水預報工業(yè)試驗,預報得到的地質(zhì)巖層條件特別是地下賦存水的空間位置特征,基本保證了施工前對地下隱患水體的準確無誤控制,對礦山施工有很大的指導和幫助,TRT6000超前探水技術可以在礦山各類巷道開挖掘進的施工中推廣應用,有效提高對圍巖情況特別是地下水的深入了解,可以在一定程度節(jié)約生產(chǎn)成本,避免安全事故,提高效率,加快礦山的生產(chǎn)建設。 在探水工程的基礎上,本文針對段村-雷溝項目豎井及平巷施工中工作面涌水災害,采用工作面預注漿并在支護后的巷道涌水巷壁后注漿堵水的聯(lián)合方案進行水災害治理。實際工程證明,工作面預注漿加壁厚注漿堵水聯(lián)合治水方式是豎井掘砌中通過較大含水層施工階段中有效的施工方法。目前已經(jīng)有4口豎井落底,平巷壁后堵水注漿經(jīng)濟有效的解決了7號進風井420m、390m中段的多出涌水問題,極大的減小排水費用,保證了工程施工的安全順利進行。 針對在軟弱破碎帶平巷掘進中的關鍵施工難題,結(jié)合礦區(qū)的巖層實際圍巖質(zhì)量及探測地下水文地質(zhì)情況,分析破巖后主要關鍵力學特征,設計采用的管棚支護方案,并以實際施工試驗結(jié)果驗證,得出如下結(jié)論： 1)管棚超前支護針對于鋁土礦山平巷施工中軟弱破碎帶是一種非常有效的支護方式,不僅能夠確保施工安全,防止大面積片幫及冒頂,而且可以節(jié)省項目建設投資,提高礦山整體經(jīng)濟效益,值得推廣采用。 2)管棚支護方案可適當結(jié)合利用超前小導管注漿加固圍巖措施,特別是在破碎巖層中,其加固效果非常顯著。 本文的研究成果可為類似工程施工提供重要指導作用,為今后含水豐富及條件類似礦山的井巷建設提供了有益的參考。
[Abstract]:Abstract: the engineering geology of Cunluigou bauxite mine in Sanmenxia Mine, Henan Province is complicated, water inrush, karst cave and broken zone are always the difficult problems in the process of construction of this mine. The design requirements of shaft and roadway must follow the policy of "probing first and digging before digging". To ensure the safety of the construction. At present, the traditional drilling and drilling machine are used in the construction, the detection distance is limited, the progress is slow, the cost is on the high side, the operation is poor, the construction progress is greatly delayed, and the construction period of the mine capital construction is lagging behind. Affecting the overall economic benefits of mines. In this paper, through the industrial test of TRT6000 advanced water exploration and prediction carried out in many underground roadways, the geological strata conditions, especially the spatial location characteristics of underground storage water, are forecasted, which basically ensures the accurate control of the hidden underground water body before construction. It has great guidance and help to mine construction. TRT6000 advanced water detection technology can be popularized and applied in excavation and excavation of all kinds of roadways in mines, and can effectively improve the deep understanding of surrounding rock situation, especially groundwater. It can save production cost to some extent, avoid safety accidents, improve efficiency and speed up production and construction of mines. On the basis of the water exploration project, this paper aims at the water gushing disaster in the shaft and horizontal roadway construction of the Duan cun-Lei Gou project, and adopts the combined scheme of pre-grouting in the working face and grouting to block the water behind the wall of the roadway gushing after the support to deal with the water disaster. It has been proved by practical engineering that the combined water plugging method with pre-grouting and thick-wall grouting is an effective construction method in the construction stage of shaft excavation through a large aquifer. At present, there are 4 shafts falling to the bottom, the water plugging and grouting at the back of the roadway wall can effectively solve the problem of extra water inflow in the middle section of No. 7 inlet shaft 420m ~ 390m, greatly reduce the cost of drainage, and ensure the safe and smooth construction of the project. In view of the key construction problems in roadway excavation in weak broken zone, combined with the actual surrounding rock mass of mining area and the detection of underground hydrogeological conditions, the main key mechanical characteristics after rock breaking are analyzed, and the pipe shed support scheme is designed and adopted. The conclusions are as follows: 1) the pipe shed advance support is a very effective support method for the weak broken zone in the construction of bauxite mountain roadway, which can not only ensure the construction safety, but also ensure the safety of the construction. To prevent large area slit and roof fall, and to save the investment of project construction and improve the overall economic benefit of mine, it is worth popularizing and adopting. 2) the support scheme of pipe shed can appropriately combine with the measures of strengthening surrounding rock with advanced small pipe grouting. Especially in the broken rock formation, the reinforcement effect is very remarkable. The research results of this paper can provide important guidance for similar engineering construction and provide a useful reference for the construction of mine roadway with rich water content and similar conditions in the future.
【學位授予單位】：中南大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TD745

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