本文選題：不良地質(zhì)體　切入點：超前地質(zhì)預報　出處：《西南交通大學》2015年碩士論文

【摘要】：本論文以廣大線祥和隧道超前地質(zhì)預報施工工作為依托,分析了隧道施工過程中典型不良地質(zhì)體的標志判別和試驗測定,闡述其可能帶來的隧道地質(zhì)災害：并研究總結(jié)了實際工程中各類地質(zhì)預報的基本理論、相關(guān)操作方法和判定依據(jù),進而提出隧道綜合超前地質(zhì)預報施工工序,以指導施工。結(jié)合前期勘察設(shè)計文件、開挖掌子面地質(zhì)情況,運用不良地質(zhì)體的發(fā)育特征分析前方隧道圍巖可能帶來的地質(zhì)災害,從而確定下一階段超前預報施工工序：(1)前期準備,為地質(zhì)預報提供施工條件；(2)長短距離預報相結(jié)合,長距離預報病害大體類別、位置,短距離預報以指導施工；(3)探測方式,通過長距離預報調(diào)整短距離預報方法和參數(shù),根據(jù)不同地質(zhì)情況對癥下藥,提高預報效率和準確率；(4)結(jié)合地質(zhì)情況和探測成果圖,為準確地提供前方圍巖地質(zhì)資料。祥和隧道位于云南省大理白族自治州境內(nèi),全場10220米,是廣大鐵路改造工程中的重點控制性工程。隧道地質(zhì)條件極其復雜,建設(shè)周期長,施工安全風險大,設(shè)計為Ⅰ級高風險隧道。采用了綜合超前地質(zhì)預報新技術(shù)方法探測掌子面前方各類不良地質(zhì)體,包括斷層破碎帶、節(jié)理裂隙密集發(fā)育帶等,在施工過程中基本上探測出了掌子面前方病害,為施工單位施工工藝的調(diào)整提供了準確的地質(zhì)資料。
[Abstract]:Based on the geological prediction work of Xianghe tunnel, this paper analyzes the identification and test of typical bad geological bodies during tunnel construction. This paper expounds the possible geological hazards of tunnels, and studies and summarizes the basic theories, relevant operation methods and judgment basis of various geological forecasts in practical engineering, and then puts forward the construction procedure of comprehensive advanced geological prediction of tunnels. In order to guide the construction, combined with the Prophase investigation and design documents, excavating the geological situation of the face of the face, and using the developmental characteristics of the bad geological body to analyze the possible geological hazards caused by the surrounding rock of the tunnel in front of the tunnel, In order to determine the early preparation for the next stage of advanced forecast construction procedure, to provide the construction conditions for geological prediction and to provide the construction conditions for geological prediction, the long distance prediction can be combined with long distance prediction, and the general category, location and short distance forecast of the disease can be predicted to guide the construction of the exploration method. By adjusting the methods and parameters of short range prediction by long distance prediction, according to the different geological conditions, to improve the forecasting efficiency and accuracy. In order to accurately provide the geological data of surrounding rock in front of the tunnel, Xianghe Tunnel is located in Dali Bai Autonomous Prefecture, Yunnan Province, with a full field of 10220 meters. It is a key control project in the vast railway reconstruction project. The geological conditions of the tunnel are extremely complex and the construction period is long. The construction safety risk is high and the tunnel is designed as class 鈪，

本文編號：1674917