ApplicationofcrossholeseismicwaveCTinKarstExploration跨孔地震CT在巖溶探測(cè)中應(yīng)用Zhaowei趙偉精選pptContent主要內(nèi)容一．Introduction(引言)二．Thebasicworkingprincipleofcross-holeseismicCTmethod(跨孔地震CT法根本工作原理)三．Equipmentintroduction(儀器設(shè)備介紹)四．Applicationexampleanalysis(應(yīng)用實(shí)例分析)精選ppt一．IntroductionInthecarbonaterockarea,karstenvironmentalgeologicalproblemshavebecomeincreasinglyprominent,highlightsthegrowingimportanceofgeologicalexplorationofkarst.Thecomplexityoftheresultinginkarstgeologicdisastersofeasytransportationconstructionprocess,suchasgroundcollapse,watergushing,andmudandothergeologicaldisasters,casualtiesandsignificantlossofstateproperty,theconstructionscheduleofproject.Therefore,wemuststrengthengeologicalkarstregiondetection.Theroutinegeophysicalmethodisinvestigatedindetailthedistributionlawofthekarstundergroundspace,earthquakeCTinKarstdetectioneffectisgood精選ppt一．引言

在碳酸鹽巖地區(qū)，巖溶環(huán)境地質(zhì)問(wèn)題日益突出，巖溶地質(zhì)勘探工作重要性日漸凸顯。巖溶發(fā)育的復(fù)雜性導(dǎo)致交通建設(shè)過(guò)程中極易產(chǎn)生突發(fā)的地質(zhì)災(zāi)害，如地面塌陷、隧道突水、突泥等地質(zhì)災(zāi)害，造成人員傷亡和重大的國(guó)家財(cái)產(chǎn)損失，影響工程施工進(jìn)度。因此，必須加強(qiáng)巖溶地區(qū)的地質(zhì)探測(cè)。常規(guī)物探方法很詳細(xì)查清地下的巖溶的空間分布規(guī)律，地震CT在巖溶的探測(cè)方面效果較好。精選pptFundamental：AccordingtothedegreeoffragmentationanddistributionofseismictraveltimelengthorsizeofCTimageattenuationwhichreflectthedistributionofboundaryandreliablerockallkindsofrockandsoil.根據(jù)走時(shí)長(zhǎng)短或衰減大小構(gòu)成的地震CT圖像可靠反映各類(lèi)巖土體的分布界線(xiàn)及巖體的破碎程度和分布。Superiority：Openedupanewwayofrockmasspartitioningandvelocityimaging------Higherthantheconventionalwavetestresolution;onthekarstfracturezonesurveymoreefficient;moredetailscanbeusedtoevaluatethestabilityoftherockmass;canaccuratelydeterminespatialpositionsofgeologicalanomaly。開(kāi)辟了巖體分區(qū)和波速成像的新途徑------比常規(guī)波速測(cè)試分辨率更高；對(duì)巖溶破碎帶的勘測(cè)更高效；可對(duì)巖體穩(wěn)定性進(jìn)行更全面更細(xì)節(jié)的評(píng)價(jià)；可準(zhǔn)確確定地質(zhì)異常的空間位置。二、

SeismicCTprinciple地震CT原理精選ppt松散土層〔Loosesoil〕完整基巖〔Completebedrock〕震源控制器電火花震源地震儀檢波器鏈跨孔地震CT工作示意圖接收孔激發(fā)孔SchematicdiagramofcrossholeseismicCTThesourcecontrollerseismographHydrophoneStimulateholereceivingholesparker精選pptSeismicCTimagingsystemmainlyincludesthefollowingparts(地震CT成像系統(tǒng)主要包含以下幾個(gè)局部)1、dataacquisitionequipment(數(shù)據(jù)采集設(shè)備)2、Transmittingequipmenthole(孔內(nèi)發(fā)射設(shè)備)3、Holereceivingequipment(孔內(nèi)接收設(shè)備)4、Processingsoftware(處理軟件)三、

Equipmentintroduction儀器設(shè)備介紹精選ppt

設(shè)備及安裝震源控制器及電火花震源地震儀及水聽(tīng)器鏈HydrophoneEquipmentandinstallation精選pptTerralocMK6seismograph野外工作照Fieldphotograph精選ppt儲(chǔ)能器impulsegenerator

發(fā)電機(jī)

electricgenerator

精選ppt1、廣州白云區(qū)黃岐二中四、

Applicationexampleana