發(fā)布時(shí)間：2024-02-04 17:00

　　隨著社會(huì)的發(fā)展,人類同自然界和諧共存意識(shí)和對(duì)地球淺地表(包括地面至地下幾米、數(shù)十米或數(shù)百米)介質(zhì)的關(guān)注不斷提高。對(duì)于中國(guó)而言,目前加速發(fā)展的城市化也對(duì)城鎮(zhèn)基礎(chǔ)建設(shè)提出了嚴(yán)峻挑戰(zhàn)。當(dāng)前的城鎮(zhèn)公共基礎(chǔ)設(shè)施建設(shè)以建設(shè)三維地下空間綜合體為基本目標(biāo),要求安全高效地利用地下空間,以支撐地下軌道交通、供油、供氣、供水、供電、通訊等生命線工程。對(duì)淺地表介質(zhì)的探測(cè)以獲取其結(jié)構(gòu)、構(gòu)造及工程力學(xué)性質(zhì),是實(shí)現(xiàn)城鎮(zhèn)地下空間開發(fā)的首要前提,可以為多尺度場(chǎng)地勘察和評(píng)估提供傳統(tǒng)鉆探和取樣分析所無法企及的節(jié)能、高效及安全等優(yōu)勢(shì)。地震勘探是感知淺地表精細(xì)結(jié)構(gòu)的重要地球物理方法之一。面波勘探作為地震勘探的一個(gè)重要分支,也越來越多地被應(yīng)用于解決淺地表地球物理和地質(zhì)實(shí)際問題。具體來說,面波勘探可以解決如下淺層地質(zhì)問題�！�1地層劃分:通過對(duì)瑞雷波頻散曲線進(jìn)行定性及定量解釋,得到各地層的厚度及彈性波的傳播速度;○2地基加固處理效果評(píng)價(jià):通過實(shí)測(cè)地基加固前后的波速差異得到處理后的地基較處理前的物理力學(xué)性質(zhì)的改善程度;○3巖土的物理力學(xué)參數(shù)原位測(cè)試:通過對(duì)實(shí)測(cè)資料的反演解釋,可以得到巖、土層的S波速度、P波速度及密度等參數(shù);○4公路、...

【文章頁(yè)數(shù)】：143 頁(yè)

【學(xué)位級(jí)別】：博士

【文章目錄】：
作者簡(jiǎn)介
中文摘要
Abstract
List of Abbreviation
Chapter 1 Introduction
    1.1 Passive Surface Wave Survey
    1.2 Thesis Objectives
    1.3 Thesis Structure
Chapter2 Multichannelanalysisofpassivesurfacewavesbasedoncross-correlations
    2.1 Introduction
    2.2 Method
    2.3 Synthetic Tests
    2.4 Applications to Field Data
        2.4.1 Han River levee experiment
        2.4.2 Nantong urban experiment
    2.5 Summary
Chapter 3 Imposing active sources during passive surface wave survey
    3.1 Introduction
    3.2 Passive Surface wave Methods
        3.2.1SPAC
        3.2.2MAPS
    3.3 MSW Measurements at Three Sites
        3.3.1 Site 1 with L-level passive surface wave
        3.3.2 Site 2 with M-level passive surface wave
        3.3.3 Site 3 with S-level passive surface wave
    3.4 Discussion
    3.5 Summary
Chapter 4 f k-based data selection in passive surface wave survey
    4.1 Introduction
    4.2 Passive Surface Wave Methods and “Crossed” Artifacts
        4.2.1 Passive Surface WaveData Processing
        4.2.2 FK Method
        4.2.3 ReMi Method
        4.2.4 Roadside Passive MASW Method
        4.2.5 Multichannel Analysis of Passive Surface waves — the MAPS Method
    4.3 FK-Based Passive Surface Wave Selection
    4.4 Numerical Test
    4.5 Applications to Field Data
        4.5.1 Changsha Experiment
        4.5.2 Yueyang Experiment
    4.6 Discussion
    4.7 Summary
Chapter 5 τp-based data selection in passive surface wave survey
    5.1 Introduction
    5.2 Methodology
    5.3 Numerical modeling
    5.4 Application to Field Data
    5.5 Discussion
    5.6 Summary
Chapter 6 Conclusions and Future Directions
    6.1 Conclusions
    6.2 Future Directions
References
Acknowledgements



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