發(fā)布時(shí)間：2019-06-14 00:53

【摘要】：研究總結(jié)地質(zhì)雷達(dá)進(jìn)行地質(zhì)探測的基本理論,了解電磁波在地質(zhì)巖土體介質(zhì)中的傳播、折射以及反射規(guī)律。研究分析地質(zhì)雷達(dá)設(shè)備的探測原理、探測距離、分辨率,并介紹探測方法及其成果解釋原理。 通過對巖溶地區(qū)隧道工程中實(shí)例,學(xué)習(xí)總結(jié)巖溶病害發(fā)育特征規(guī)律。闡述巖溶在水平巖層、傾斜巖層、背斜、向斜地質(zhì)環(huán)境下巖溶病害發(fā)育規(guī)律,包括巖溶病害類別、規(guī)模、方向等,并繪制成巖溶發(fā)育地質(zhì)模型圖。 結(jié)合勘察報(bào)告、掌子面地質(zhì)情況并運(yùn)用巖溶病害發(fā)育規(guī)律及地質(zhì)模型分析掌子面前方巖溶病害發(fā)育情況,有針對性地調(diào)整地質(zhì)雷達(dá)探測過程與方法：(1)地質(zhì)雷達(dá)探測方式,根據(jù)病害大體類別、位置、探測平面的預(yù)報(bào)意義布置雷達(dá)測線；(2)調(diào)整數(shù)據(jù)采集與處理的方式和參數(shù),根據(jù)地質(zhì)情況對數(shù)據(jù)進(jìn)行處理,有效地濾除干擾信號,增強(qiáng)有預(yù)報(bào)意義的頻率信號；(3)數(shù)據(jù)成果解釋,結(jié)合地質(zhì)情況和巖溶病害發(fā)育規(guī)律及地質(zhì)模型,較為準(zhǔn)確地解釋雷達(dá)探測成果圖。從而形成超前地質(zhì)預(yù)報(bào)巖溶探測地質(zhì)雷達(dá)新技術(shù)方法,提高了巖溶病害探測準(zhǔn)確度和探測效率。 貴廣鐵路油竹山隧道為高風(fēng)險(xiǎn)巖溶隧道,采用了巖溶探測地質(zhì)雷達(dá)新技術(shù)方法探測掌子面前方巖溶病害,包括溶洞、溶槽、溶隙破碎帶、富水區(qū)等,在施工過程中基本上探測出了掌子面前方巖溶病害,為施工單位施工工藝的調(diào)整提供了準(zhǔn)確的地質(zhì)資料。為施工安全、施工質(zhì)量、施工工期提供了有力保證
[Abstract]:The basic theory of geological detection by geological radar is studied and summarized, and the propagation, refraction and reflection of electromagnetic wave in geological rock and soil media are understood. The detection principle, detection range and resolution of GPR equipment are studied and analyzed, and the detection method and its interpretation principle are introduced. Through the example of tunnel engineering in Karst area, the development characteristics of Karst disease are studied and summarized. This paper expounds the development law of Karst disease in horizontal strata, inclined strata, anticlinal and synclinal geological environment, including the category, scale and direction of Karst diseases, and draws the geological model diagram of Karst development. Combined with the investigation report, the geological situation of the palm surface is analyzed, and the development law of the Karst disease and the geological model are used to analyze the development of the Karst disease in front of the palm surface. The process and method of the GPR detection are adjusted: (1) the geological radar detection mode, according to the general category, position and prediction significance of the detection plane, arrange the radar survey line; (2) adjust the mode and parameters of data acquisition and processing, process the data according to the geological situation, effectively filter out the interference signal and enhance the frequency signal of prediction significance; (3) the interpretation of the data results, combined with the geological situation, the development law of Karst disease and the geological model, explain the radar detection result map more accurately. Thus, a new technical method of geological radar for advanced geological prediction of Karst detection is formed, and the detection accuracy and efficiency of Karst disease detection are improved. Youzhushan Tunnel of Guiguang Railway is a high risk Karst tunnel. A new technique of Karst Detection Geological Radar is used to detect Karst diseases in front of palmface, including cave, trough, dissolved gap broken zone, rich water area and so on. The Karst disease in front of Pocket face is basically detected in the construction process, which provides accurate geological data for the adjustment of construction technology of construction unit. It provides a powerful guarantee for construction safety, construction quality and construction period.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U452.1;P631.3

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