本文選題：解析法 + 巖溶隧道　； 參考：《成都理工大學(xué)》2015年碩士論文

【摘要】：西南地區(qū)交通的大規(guī)模建設(shè),必將帶來隧道工程的大量建設(shè)。受復(fù)雜的巖溶水文地質(zhì)條件制約,隧道建設(shè)與運營中突水災(zāi)害頻發(fā)。基于地下水動力學(xué)理論推導(dǎo)出的解析法是在均勻介質(zhì)中計算隧道涌水量中應(yīng)用最廣泛的一種方法。如何將復(fù)雜巖溶介質(zhì)概化,使之符合解析法的假設(shè)條件；并研究解析法如何更好的應(yīng)用于巖溶隧道涌水量計算,根據(jù)巖溶介質(zhì)特點對解析法進行改進,對于準(zhǔn)確預(yù)測巖溶隧道涌水量具有重要意義。論文基于巖溶介質(zhì)特征,將復(fù)雜巖溶介質(zhì)概化為均勻介質(zhì)和非均勻介質(zhì)。研究均勻介質(zhì)中,解析法的理論基礎(chǔ)以及經(jīng)驗要素；并根據(jù)非均勻介質(zhì)特征,給出針對帶狀非均勻介質(zhì)的解析法修正公式。根據(jù)大五山隧道涌水量監(jiān)測資料,研究在均勻介質(zhì)中如何正確確定解析法公式中的參數(shù)值；根據(jù)大公山隧道涌水量監(jiān)測資料,確定針對帶狀非均勻介質(zhì)解析法修正公式中的參數(shù)值。最終得到如下結(jié)論：(1)巖溶介質(zhì)通常按溶蝕空隙大小分為：裂隙-溶孔型、裂隙-溶洞型巖溶介質(zhì)以及溶洞型或管道型巖溶介質(zhì)。裂隙-溶孔型、裂隙-溶洞型巖溶介質(zhì)主要表現(xiàn)為微觀不均勻性或中等不均勻性,概化為均勻介質(zhì)。溶洞型或管道型巖溶介質(zhì),主要表現(xiàn)為宏觀不均勻性,甚至對于大型的地下河系統(tǒng)或區(qū)域性的大斷裂,可表現(xiàn)為特大不均勻性,概化為非均勻介質(zhì)。(2)解析法的理論基礎(chǔ)主要是地下水的穩(wěn)定流運動。分別基于剖面平面流和平面輻射流的地下水運動狀態(tài),推導(dǎo)出的裘布依單寬流量理論公式以及穩(wěn)定井流公式；解析法的經(jīng)驗值參數(shù)要素包括降深值S以及影響半徑R值,兩個參數(shù)的合理取值,關(guān)系到計算結(jié)果的準(zhǔn)確性。(3)隧道涌水量計算中的正常涌水量計算公式包括：落和敏郎公式、裘布依理論公式、科斯加可夫經(jīng)驗公式、鐵路勘測規(guī)范經(jīng)驗公式。落和敏郎公式和裘布依計算結(jié)果最優(yōu)且穩(wěn)定,建議作為推薦值；鐵路勘測規(guī)范經(jīng)驗公式計算結(jié)果次之,可作為參考值；科斯加可夫公式計算結(jié)果最差。(4)隧道涌水量計算中的最大涌水量計算公式包括古德曼公式、大島洋志公式、鐵路勘測規(guī)范經(jīng)驗公式。大島洋志公式計算最大涌水量方法最優(yōu)。對于K值較小的均勻介質(zhì),當(dāng)S=1/3H時,計算結(jié)果最優(yōu)。(5)對于帶狀非均勻介質(zhì)提出橢圓狀影響半徑以及等效降深SD的概念,指出SD=nS,其中n值為橢圓狀影響長軸半徑b與短軸半徑a的比值,并對均勻介質(zhì)中的裘布依理論公式和落和敏郎公式進行修正。(6)帶狀非均勻介質(zhì)裘布依修正公式：Qs=KLSD2/b-r;次級公式：SD=nS, b=na=4nS,并通過大公山隧道涌水量監(jiān)測資料對n值進行修正,得出n值不易取值過大,在15～20之間比較適宜的結(jié)論。(7)帶狀非均勻介質(zhì)落和敏郎修正公式：Qs=KL[(SD2)/(b-r)+(πS)/(ln(4a/d))];次級公式：SD=nS,b=na=4nS,通過實踐數(shù)據(jù)修正n值,得出n取值為12、14、16、時,計算值與實際值的吻合度較好。
[Abstract]:The large-scale construction of traffic in southwest China will surely bring about a large number of tunnel projects. Restricted by complicated karst hydrogeological conditions, water inrush disasters occur frequently in tunnel construction and operation. The analytical method derived from the theory of groundwater dynamics is the most widely used method in the calculation of tunnel discharge in uniform medium. How to generalize the complex karst medium and make it accord with the assumption condition of analytical method, and how to apply the analytical method to the calculation of karst tunnel water discharge better, and improve the analytical method according to the characteristics of karst medium, It is of great significance for accurate prediction of karst tunnel discharge. Based on the characteristics of karst medium, the complex karst medium is generalized to homogeneous medium and heterogeneous medium. The theoretical basis and empirical elements of the analytical method in homogeneous media are studied, and the modified formula of the analytical method is given according to the characteristics of the inhomogeneous medium. Based on the monitoring data of water inflow in Dagongshan tunnel, the paper studies how to correctly determine the parameter value in analytical formula in homogeneous medium, and according to the monitoring data of water inflow in Dagongshan tunnel, The parameter values in the correction formula of analytical method for strip inhomogeneous medium are determined. Finally, the following conclusions are obtained: karst media is usually divided into three types according to the size of dissolution void: fissure-dissolved pore type, fissure-cave type karst medium and karst medium of karst cave type or pipeline type. The karst media of fissure solution pore type and fissure cave type mainly show microscopic inhomogeneity or medium heterogeneity and can be generalized as homogeneous medium. The karst medium of cavern type or pipeline type is mainly shown as macroscopic heterogeneity, even for large underground river system or regional big fault, it can be shown as extraordinarily uneven. The theoretical basis of the analytical method is the steady flow movement of groundwater. Based on the ground water movement state of plane flow and plane radiation flow in section, the theoretical formula of single wide flow and the formula of steady well flow are derived, and the parameters of empirical value of analytical method include the value of depth reduction S and the value of influence radius R, respectively. The reasonable value of the two parameters is related to the accuracy of the calculation results.) the calculation formulas of the normal water discharge in the calculation of the water discharge of the tunnel include: the Luohe Minlang formula, the Qiubui theory formula, the Kosgakov empirical formula, Empirical formula of railway survey specification. The calculation results of Rohe Minlong formula and Qiubuyi formula are optimal and stable, which is recommended as the recommended value, and the result of empirical formula of railway survey code is the second, which can be used as reference value. The calculation formula of maximum water inflow in the calculation of tunnel water inflow includes Goodman formula, Oshima Yangzhi formula and empirical formula of railway survey code. The method of calculating the maximum water inflow by the Oshima Oceanography formula is optimal. For homogeneous medium with smaller K value, the optimal result is obtained when S _ (1 / 3) H) the concept of ellipsoidal radius of influence and equivalent depth of SD are put forward for the non-uniform medium. It is pointed out that SDN S, where n value is ellipsoid, affects the ratio of long axis radius b to short axis radius a. In addition, the theoretical formula of Qiu Buyi and the formula of Luo he Minlang in homogeneous medium are revised. The revised formula of Qiu Buyi in zonal non-uniform medium is: 1 / Qsn KLSD 2 / b-r; the secondary formula is: SDN S, bGN 4 nS; and the n value is corrected through the monitoring data of water discharge in Dagongshan Tunnel. We get the conclusion that n value is not easy to get too large, and it is more suitable between 15 ~ 20).) the band inhomogeneous medium drop and sensitivity Lang's correction formula QsnKL (蟺 S ~ (2) / r) (蟺 S ~ (2) / n / n ~ (4) a / d ~ (1); the secondary formula: (2) SDnSbna4n S, by modifying n value by practical data, the value of n is 12 / 14 / 16. The calculated value is in good agreement with the actual value.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U452.11

【參考文獻】

相關(guān)期刊論文 前7條

1 陳崇希;巖溶管道-裂隙-孔隙三重空隙介質(zhì)地下水流模型及模擬方法研究[J];地球科學(xué);1995年04期

2 劉偉韜,李加祥,張文泉;頂板涌水等級評價的模糊數(shù)學(xué)方法[J];煤炭學(xué)報;2001年04期

3 羅敏;許模;楊艷娜;任蕊;;基于AHP和模糊評判的隧道涌突水災(zāi)害預(yù)測[J];人民黃河;2010年11期

4 吳治生;;不同地質(zhì)邊界條件巖溶隧道涌水量預(yù)測及展望[J];鐵道工程學(xué)報;2007年11期

5 吳治生;張杰;;巖溶隧道涌水影響因素、預(yù)測方法及危害分析囿[J];鐵道工程學(xué)報;2012年11期

6 康小兵;許模;張強;羅聲;;模糊聚類分析預(yù)測隧道涌水災(zāi)害[J];湖南科技大學(xué)學(xué)報(自然科學(xué)版);2007年03期

7 趙堅,賴苗,沈振中;適于巖溶地區(qū)滲流場計算的改進折算滲透系數(shù)法和變滲透系數(shù)法[J];巖石力學(xué)與工程學(xué)報;2005年08期

相關(guān)碩士學(xué)位論文 前1條

1 鄔強;齊岳山隧道涌水量預(yù)測的研究[D];西南交通大學(xué);2006年

，

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