桓仁銅鋅礦卷揚機硐室圍巖穩(wěn)定性分析及評價與支護對策研究
發(fā)布時間:2018-12-31 09:43
【摘要】:礦產(chǎn)資源因其在現(xiàn)今作為能源及工業(yè)原料的主要資源被人們所利用,對礦產(chǎn)資源的開采相應的也就越來越廣泛。隨著礦產(chǎn)資源的開發(fā)利用,礦山巷道等地下硐室的開采過程中的安全問題也是現(xiàn)在人們所關注的,相應的對于硐室圍巖的穩(wěn)定性的評價及評價后對于不穩(wěn)定圍巖采取的支護措施也逐漸的形成了一門學科,應用到各個礦山巷道地下硐室中;溉抒~鋅礦屬于典型的綜合性礦產(chǎn),富多種有色金屬:銅、銀、鉛、鐵、鋅、鉬。向陽礦7#豎井是向陽礦井為西部接力提升豎井的一段豎井。礦床類型屬于典型的侵入閃長巖與沉積灰?guī)r接觸交帶而形成的矽卡巖型礦床。擬建的向陽坑七號卷揚機室,1989年施工時因作業(yè)面原巖構造穩(wěn)定性差,導致頂部巖石落盤而廢止,為了重新利用,需對卷揚機硐室進行穩(wěn)定性分析,再根據(jù)穩(wěn)定性現(xiàn)狀建議采取適當?shù)闹ёo措施。先對卷揚機硐室進行了資料的收集、現(xiàn)場的工程地質方面的調查、量測、監(jiān)測、取樣分析等,根據(jù)實際情況,收集研究了與本工程相關的國內外研究現(xiàn)狀,結合本工程的實際情況,采用定性分析與定量分析相結合的方法進行硐室松動圈范圍判定及圍巖的分級。松動圈范圍的判定以現(xiàn)場單孔聲測法進行巖體的波速測試,由測試結果的波速值來初步判定松動圈范圍,再結合普氏理論,以理論的方式進行松動圈范圍計算,,綜合兩種判定結果,最終確定本卷揚機硐室的松動圈范圍。以室內巖石的物理力學性質等試驗數(shù)據(jù)為依據(jù),結合相關規(guī)范而進行圍巖分級。對硐室圍巖表面進行垂直位移點監(jiān)測,記錄并整理相關數(shù)據(jù),由松動圈范圍、工程巖體分級、監(jiān)測數(shù)據(jù)等對桓仁銅鋅礦卷揚機硐室進行穩(wěn)定性的綜合分析及評價。根據(jù)穩(wěn)定性分析結果建議卷揚機硐室采用錨噴結合裂隙灌漿的方法進行支護,通過具體的計算,確定采用錨桿的形式、錨桿長度等、裂隙灌漿的方式、噴射混凝土采用的工藝及噴射厚度等。錨桿因其成本相對較低、施工工藝簡單、適用性廣泛,而被普遍應用于隧道及礦山等地下工程、邊坡、基坑工程、橋梁等的支護中,其遍布土建及采礦工程的各個領域,國內外錨固技術已達600多種。本文論述的各個階段均采用定性分析與定量分析的方式相結合的方法,引用國內外比較完善及先進的理論研究方法及實際測量、監(jiān)測、施工等技術,客觀的對桓仁銅鋅礦卷揚機硐室穩(wěn)定性進行了分析評價及對保護措施進行了建議,對卷揚機硐室的日后的支護施工提供了方法及參數(shù)建議。
[Abstract]:Mineral resources are used by people because of their main resources as energy and industrial raw materials, and the exploitation of mineral resources is becoming more and more extensive. With the development and utilization of mineral resources, people pay more attention to the safety problems in the mining process of underground caverns such as mine roadways. The corresponding evaluation and evaluation of the stability of the surrounding rock of the chamber has gradually formed a discipline for the unstable surrounding rock, which is applied to the underground chamber of each mine roadway. Huanren copper-zinc ore is a typical comprehensive mineral, rich in many non-ferrous metals: copper, silver, lead, iron, zinc, molybdenum. The shaft of Xiangyang mine is a section of shaft for the west relay lifting shaft. The deposit type belongs to skarn type deposit formed by contact zone between intrusive diorite and sedimentary limestone. The proposed hoist room No. 7 of Xiangyangkeng was abolished because of the poor stability of the original rock structure of the working surface during the construction in 1989. In order to reuse, it is necessary to analyze the stability of the hoist chamber. According to the stability of the current situation, appropriate support measures are proposed. First of all, the data collection of the hoist chamber, the investigation, measurement, monitoring, sampling and analysis of the engineering geology on the spot are carried out. According to the actual situation, the domestic and foreign research situation related to the project is collected and studied. Combined with the actual situation of the project, the method of qualitative analysis and quantitative analysis is used to determine the scope of loose ring and the classification of surrounding rock. The range of loose circle is determined by the method of sound measurement of single hole in the field. The range of loosening circle is preliminarily determined by the wave velocity value of the test result, and the range of loosening circle is calculated by the theoretical method combined with the theory of Plain. Synthesizing two kinds of judgment results, the loosening circle range of the winch chamber is finally determined. Based on the test data of physical and mechanical properties of indoor rocks, surrounding rock classification is carried out in combination with relevant codes. The vertical displacement points of the surrounding rock surface of the chamber are monitored, and the relevant data are recorded and arranged. The stability of the hoist chamber of Huanren copper-zinc mine hoist is comprehensively analyzed and evaluated by the loosening zone range, engineering rock mass classification and monitoring data. According to the results of stability analysis, it is suggested that the hoist chamber should be supported by bolting and shotcreting combined with fissure grouting. Through concrete calculation, the form of anchor rod, the length of anchor rod and the way of crack grouting should be determined. The technology and thickness of spray concrete. Because of its relatively low cost, simple construction technology and wide applicability, anchor rod is widely used in underground engineering, slope, foundation pit engineering, bridge and so on, and is widely used in various fields of civil and mining engineering. Anchorage technology at home and abroad has reached more than 600. The methods of qualitative analysis and quantitative analysis are used in all the stages discussed in this paper, and the relatively perfect and advanced theoretical research methods and practical measurement, monitoring and construction techniques are cited at home and abroad. The stability of winch chamber in Huanren copper-zinc mine is analyzed and evaluated objectively and the protection measures are suggested. The method and parameter suggestions are provided for the supporting construction of winch chamber in the future.
【學位授予單位】:吉林大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:TD322;TD354
本文編號:2396396
[Abstract]:Mineral resources are used by people because of their main resources as energy and industrial raw materials, and the exploitation of mineral resources is becoming more and more extensive. With the development and utilization of mineral resources, people pay more attention to the safety problems in the mining process of underground caverns such as mine roadways. The corresponding evaluation and evaluation of the stability of the surrounding rock of the chamber has gradually formed a discipline for the unstable surrounding rock, which is applied to the underground chamber of each mine roadway. Huanren copper-zinc ore is a typical comprehensive mineral, rich in many non-ferrous metals: copper, silver, lead, iron, zinc, molybdenum. The shaft of Xiangyang mine is a section of shaft for the west relay lifting shaft. The deposit type belongs to skarn type deposit formed by contact zone between intrusive diorite and sedimentary limestone. The proposed hoist room No. 7 of Xiangyangkeng was abolished because of the poor stability of the original rock structure of the working surface during the construction in 1989. In order to reuse, it is necessary to analyze the stability of the hoist chamber. According to the stability of the current situation, appropriate support measures are proposed. First of all, the data collection of the hoist chamber, the investigation, measurement, monitoring, sampling and analysis of the engineering geology on the spot are carried out. According to the actual situation, the domestic and foreign research situation related to the project is collected and studied. Combined with the actual situation of the project, the method of qualitative analysis and quantitative analysis is used to determine the scope of loose ring and the classification of surrounding rock. The range of loose circle is determined by the method of sound measurement of single hole in the field. The range of loosening circle is preliminarily determined by the wave velocity value of the test result, and the range of loosening circle is calculated by the theoretical method combined with the theory of Plain. Synthesizing two kinds of judgment results, the loosening circle range of the winch chamber is finally determined. Based on the test data of physical and mechanical properties of indoor rocks, surrounding rock classification is carried out in combination with relevant codes. The vertical displacement points of the surrounding rock surface of the chamber are monitored, and the relevant data are recorded and arranged. The stability of the hoist chamber of Huanren copper-zinc mine hoist is comprehensively analyzed and evaluated by the loosening zone range, engineering rock mass classification and monitoring data. According to the results of stability analysis, it is suggested that the hoist chamber should be supported by bolting and shotcreting combined with fissure grouting. Through concrete calculation, the form of anchor rod, the length of anchor rod and the way of crack grouting should be determined. The technology and thickness of spray concrete. Because of its relatively low cost, simple construction technology and wide applicability, anchor rod is widely used in underground engineering, slope, foundation pit engineering, bridge and so on, and is widely used in various fields of civil and mining engineering. Anchorage technology at home and abroad has reached more than 600. The methods of qualitative analysis and quantitative analysis are used in all the stages discussed in this paper, and the relatively perfect and advanced theoretical research methods and practical measurement, monitoring and construction techniques are cited at home and abroad. The stability of winch chamber in Huanren copper-zinc mine is analyzed and evaluated objectively and the protection measures are suggested. The method and parameter suggestions are provided for the supporting construction of winch chamber in the future.
【學位授予單位】:吉林大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:TD322;TD354
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