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The Research And Application Of Comprehensive Geophysical Prospecting In Engineering Investigation

Posted on:2016-08-21Degree:MasterType:Thesis
Country:ChinaCandidate:Z N LiFull Text:PDF
GTID:2180330461956284Subject:Earth Exploration and Information Technology
Abstract/Summary:PDF Full Text Request
With the development of economy, the scale of the engineering is increasingly deepening,the perturbation range brought by construction is also continuously expand and strengthen.In the process of engineering exploration and construction,some kind of adverse geological phenomenon like goaf,underground cavern,or faultage, always brings security problems to the later stages of construction.so we have to undertake exploration for unfavorable geology in the earlier stage of construction.Geophysical prospecting is an effective method of exploration,and rich geophysical data may affect the ability of engineering design,budget and schedule.Geophysical prospecting is a kind of indirect detection mean with many advantages like low cost,simple,rapid and content rich.But unitary geophysical method couldn’t meet the requirement of high-resolution detecting and will bring about the multi-explain resulted.First in this paper, we elaborated the basic theory,the influence characteristics,the fieldwork measures and the data explanation of the high-density resistivity method,shallow seismic reflection and ground penetrating radar.High density resistivity method has the characteristics of the electric sounding and electric sectiond and has the continuity of the electrical response, it can ensure comprehensive and efficient detection results.Use high density resistivity method and ground penetrating radar(GPR) to determine the tiny location of shallow underground crushing fracture,and then use of the shallow seismic reflection for the deep geological characteristics for further exploration. And then we combine with those three kinds of geophysical prospecting`s result interpretations in the work area to compares and analyzes,Finally,we evaluate the geological feature about work area, and provide the effective basis for the engineering construction.
Keywords/Search Tags:Comprehensive geophysical prospecting, High-density resistivity, method, Shallow seismic reflection, Ground Penetrating Radar
PDF Full Text Request
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