發(fā)布時間：2018-11-29 11:08

【摘要】：TSP超前地質預報方法是目前長距離物探預報中運用最為廣泛的一種方法，在不少隧道中進行了比較準確的預報。目前，關于TSP預報的工程實例運用較多，但真正對其進行深入研究的文獻還是比較少見。作為一種物探方法其預報結果的多解性和不同復雜地質情況的解譯特征有待分析。所以，開展不同自然環(huán)境和地質條件下的TSP探測和解譯研究，不斷的積累該方面的資料，對于提高TSP探測的精度和解譯的準確性具有十分重要的意義。 首先，在總結TSP探測基本原理和搜集TSP超前地質預報實例文獻的基礎上，得出了一些關于TSP解譯的基本規(guī)律和經(jīng)驗，并對幾種常見地質體的對應探測成果圖特征規(guī)律進行歸納總結。對十天高速公路小川隧道和成州隧道兩種不同地質情況條件下進行預報，并對預報成果圖特征進行解譯分析，得出預報結論。 其次，通過對掌子面開挖進行連續(xù)地質描述，還原TSP預報段前100m的實際圍巖地質情況，以此來對TSP探測效果進行分析，并對其探測成果圖對應地質特征進行研究，得出相應的解譯規(guī)律和經(jīng)驗。同時，對比分析TSP與地質雷達預測存在的差異，以此探討TSP203的探測特征和適用性。 最后，通過TSP203探測特征選取圍巖分級預測指標，并根據(jù)探測結果對指標進行取值，運用層次分析法和專家調查法計算其權重，，采用模糊綜合評判對圍巖等級進行預測。結合實際開挖進行BQ法圍巖分級，并將FAHP-TSP法分級結果與之對比，驗證其準確性。
[Abstract]:TSP advanced geological prediction method is the most widely used method in long distance geophysical prospecting at present. It has been used in many tunnels to forecast accurately. At present, there are many engineering examples about TSP prediction, but the literature on it is still rare. As a geophysical method, the multi-solution of the prediction results and the interpretation characteristics of different complex geological conditions need to be analyzed. Therefore, it is very important to carry out the research of TSP exploration and interpretation under different natural and geological conditions, and to accumulate the data in this field, which is very important to improve the accuracy of TSP detection and interpretation. First of all, on the basis of summarizing the basic principle of TSP exploration and collecting the case documents of TSP advanced geological prediction, some basic laws and experiences about TSP interpretation are obtained. The characteristics of corresponding exploration results of several common geological bodies are summarized and summarized. This paper forecasts the Xiaochuan Tunnel and Chengzhou Tunnel of Shitian Expressway under two different geological conditions, and interprets and analyzes the characteristics of the forecast result map, and draws a forecast conclusion. Secondly, through the continuous geological description of the face excavation and the reduction of the actual surrounding rock geological condition in the first 100 m of the TSP prediction section, the effect of TSP detection is analyzed, and the corresponding geological characteristics of the exploration result map are studied. The corresponding interpretation rules and experience are obtained. At the same time, the differences between TSP and GPR prediction are analyzed, and the detection characteristics and applicability of TSP203 are discussed. Finally, the classification prediction index of surrounding rock is selected by TSP203 detection feature, and the index is selected according to the detection result. The weight of the index is calculated by AHP and expert investigation method, and the grade of surrounding rock is forecasted by fuzzy comprehensive evaluation. Combined with actual excavation, the classification of surrounding rock by BQ method is carried out, and the results of FAHP-TSP method are compared to verify its accuracy.
【學位授予單位】：長安大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U459.2;U451.2

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