本文關鍵詞： 水下堆積體 物探 小子域濾波 全自動觸發(fā)器 氣泡效應　出處：《合肥工業(yè)大學》2014年博士論文　論文類型：學位論文

【摘要】：對水下堆積體的物質(zhì)組成及其分布特征等內(nèi)容的準確了解,往往是水利工程建設與維護的重要基礎工作,現(xiàn)多采用綜合地球物理勘查(簡稱物探)方法,確定堆積體的分布范圍與深度,再結(jié)合相應的鉆探,對物探成果進行驗證并進一步查明堆積體的物質(zhì)組成。在淺水區(qū),受水體深度、目標體的結(jié)構(gòu)特征、波浪等外界因素的干擾,使各種物探方法的有效性受到明顯影響；不同時期堆積體其組份差異往往較大,由此所構(gòu)成的堆積體,其物理性質(zhì)的復雜多變,給物探成果的準確解譯形成很大的障礙。 以淮河中游干流護岸拋石和大型水庫除險拋石為主要研究對象,針對高密度電阻率法、探地雷達法和高密度地震映像法這三種目前主要的工程物探方法,利用不同水深、不同厚度堆積體的數(shù)值模擬和現(xiàn)場實測成果,進行有效性對比研究；針對堆積體物性復雜多變的特點,對物探解譯方法進行相應的改進；研究過程中,結(jié)合實際工作中所常遇的復雜工況,對儀器設備進行適用性改良。所獲得的創(chuàng)新成果：(1)對高密度地震映像方法,研制了一種輕型氣壓式淺水域全自動觸發(fā)器設備,在經(jīng)濟合理的前提下,有效克服了大能量震源的氣泡效應。(2)在綜合研究高密度電法、探地雷達和高密度地震映像法在淺水域拋石體探測中所表現(xiàn)的特征和規(guī)律的基礎上,建立了淺水域拋石體探測的地電模型,并進行了正反演模擬,為淺水域堆積體精準探測應用提供理論支撐；(3)根據(jù)淺水域堆積體上覆水體的不同深度,堆積體的結(jié)構(gòu)特征和賦存狀態(tài),探索精準探測方法,明確了對應的有效物探方法組合；上述工作,將為不同物探方法的有效選擇與野外工作的高效實現(xiàn)提供技術(shù)支撐。
[Abstract]:The accurate understanding of the material composition and its distribution characteristics of underwater accumulations is often an important basic work for the construction and maintenance of water conservancy projects. Now the comprehensive geophysical exploration (geophysical exploration) method is often used. Determining the distribution range and depth of the accumulation body, combining with the corresponding drilling, verifying the geophysical exploration results and further finding out the material composition of the accumulation body. In the shallow water area, the depth of the water body, the structural characteristics of the target body, The effectiveness of various geophysical prospecting methods is obviously affected by the interference of external factors such as waves, and the composition of the accumulated bodies is often different in different periods, and the physical properties of the accumulated bodies are complex and changeable. There is a great obstacle to the accurate interpretation of geophysical exploration results. Taking the riprap along the middle reaches of the Huaihe River as the main research object and the large reservoir removing dangerous ripraps as the main research objects, aiming at the three main engineering geophysical prospecting methods at present, the high density resistivity method, the ground penetrating radar method and the high density seismic mapping method, different water depths are used. The effectiveness of the numerical simulation and field measurement results of different thickness accumulations are compared and studied. In view of the complex and changeable physical properties of the deposits, the corresponding improvement of the geophysical interpretation method is carried out. In the process of the research, Combined with the complex working conditions often encountered in practical work, the applicability of the instrument and equipment is improved. The new method of high-density seismic mapping is obtained. A light barometric automatic trigger device for shallow water area is developed. On the premise of economy and rationality, the bubble effect of large energy source is effectively overcome. On the basis of synthetically studying the characteristics and laws of high density electrical method, ground penetrating radar and high density seismic mapping method in shallow water area, In this paper, a geoelectric model for the exploration of shallow water bodies is established, and the forward and inverse simulation is carried out, which provides theoretical support for the application of accurate detection of deposits in shallow waters. (3) according to the different depths of the overlying water bodies in shallow waters, The structural characteristics and occurrence state of the accumulation body, the accurate detection method and the corresponding effective geophysical exploration method combination are explored. The above work will provide technical support for the effective selection of different geophysical exploration methods and the efficient realization of field work.
【學位授予單位】：合肥工業(yè)大學
【學位級別】：博士
【學位授予年份】：2014
【分類號】：TV221

【參考文獻】

相關期刊論文 前10條

1 王萬銀;潘玉;邱之云;;位場數(shù)據(jù)歸一化總水平導數(shù)垂向?qū)?shù)邊緣識別方法(英文)[J];Applied Geophysics;2009年03期

2 王萬銀;張功成;梁建設;;位場垂向?qū)?shù)零值位置空間變化規(guī)律研究(英文)[J];Applied Geophysics;2010年03期

3 蔣甫玉;高麗坤;;基于改進的小子域濾波的重力異常及重力梯度張量邊緣增強(英文)[J];Applied Geophysics;2012年02期

4 陳寧;雷宛;肖宏躍;呂志強;胡承林;;邊界系數(shù)法在高密度電阻率法正反演解釋中的應用效果研究[J];成都理工大學學報(自然科學版);2011年03期

5 冷元寶,黃建通,張震夏,王銳,趙圣立;堤壩隱患探測技術(shù)研究進展[J];地球物理學進展;2003年03期

6 鄧世坤,王惠濂;探地雷達圖像的正演合成與偏移處理[J];地球物理學報;1993年04期

7 符力耘，，牟永光;彈性波邊界元法正演模擬[J];地球物理學報;1994年04期

8 侯安寧，何樵登;各向異性介質(zhì)中彈性波動高階差分法及其穩(wěn)定性的研究[J];地球物理學報;1995年02期

9 吳自銀,鄭玉龍,初鳳友,陶春輝,高金耀;海底淺表層信息聲探測技術(shù)研究現(xiàn)狀及發(fā)展[J];地球科學進展;2005年11期

10 王傳雷,祁明松,陳超,彭松柏,譚倫武;高精度磁測在長江馬當要塞沉船探測中的應用[J];地質(zhì)科技情報;2000年03期

相關博士學位論文 前1條

1 王萍;探地雷達檢測土壤緊實性的實驗研究和信號反演[D];中國礦業(yè)大學（北京）;2010年

本文編號：1500696