本文選題：不良地質(zhì)體 + 預(yù)報等級��； 參考：《中南大學》2014年碩士論文

【摘要】：摘要：本文以某長大高風險鐵路隧道為工程背景,通過查閱了大量的地質(zhì)預(yù)報文獻、現(xiàn)場實踐和經(jīng)驗總結(jié)的方式,對斷層破碎帶與巖溶等不良地質(zhì)體的超前預(yù)報進行了研究,取得的成果如下： (1)通過分析常用地質(zhì)預(yù)報方法的優(yōu)缺點及適用范圍,結(jié)合隧道復(fù)雜的地質(zhì)條件,提出按地質(zhì)異常的大小程度將地質(zhì)預(yù)報分成四個等級,合理安排相應(yīng)的預(yù)報方法,并應(yīng)用于長大高風險隧道地質(zhì)預(yù)報,驗證了其可行性和有效性。 (2)通過對某長大高風險隧道地質(zhì)預(yù)報工作經(jīng)驗進行總結(jié),提出了地質(zhì)預(yù)報的四個原則：地質(zhì)為核心、綜合預(yù)報、有機結(jié)合、動態(tài)調(diào)整。在工程中得到了驗證。 (3)通過對斷層、巖溶的致災(zāi)機理進行分析,系統(tǒng)研究了斷層、巖溶的特征及前兆標志,并在長大高風險鐵路隧道得到了應(yīng)用和驗證,效果較好。 (4)甲級預(yù)報方法為：地質(zhì)跟蹤預(yù)報、TSP、地質(zhì)雷達、紅外探測、超前鉆孔,可以預(yù)報斷層與巖溶多方面信息,預(yù)報準確性較高,但考慮預(yù)報成本和對施工進度的影響,僅推薦在高危險性的大型斷層與巖溶發(fā)育區(qū)段使用。
[Abstract]:Abstract: based on the engineering background of a long and high risk railway tunnel, through consulting a lot of geological forecast documents, field practice and experience summing up, this paper studies the advanced prediction of bad geological bodies such as fault fracture zone and karst. The results obtained are as follows: (1) by analyzing the advantages and disadvantages of the commonly used geological forecasting methods and the applicable scope, combined with the complicated geological conditions of the tunnel, it is put forward that the geological prediction can be divided into four grades according to the magnitude of the geological anomalies. Reasonable arrangement of the corresponding forecasting methods is applied to geological prediction of long and high risk tunnels, which verifies its feasibility and effectiveness. (2) the working experience of geological prediction for a long and high risk tunnel is summarized. Four principles of geological prediction are put forward: geology as the core, comprehensive forecast, organic combination and dynamic adjustment. It has been verified in the project. (3) by analyzing the mechanism of fault and karst disaster, the characteristics of fault, karst and precursor sign are studied systematically, and applied and verified in long and high risk railway tunnel. (4) Grade A prediction methods are: geological tracking prediction TSP, ground penetrating radar, infrared detection, advanced drilling, prediction of faults and karst, and high accuracy of prediction. However, considering the forecast cost and the influence on construction schedule, it is only recommended to use in large fault and karst development areas with high risk.
【學位授予單位】：中南大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U452.11

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