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1.
频率域激发极化法在水文物探中的应用 总被引：1，自引：0，他引：1
王帮成 《水文地质工程地质》1992,19(5):52-55
本文从频率域激发极化法与时间域激发极化法的等效性入手,说明频率域激发极化法可用于解决水文地质问题,并且频率域激发极化法有许多特点比时间域激发极化法更适宜于在山区、市区等复杂地区进行水文物探工作。最后给出几例频率域激发极化法在水文物探中的应用实例,说明频率域激发极化的应用效果。 相似文献
2.
水工环物探仪器研制特点与实例李惠民，吴海成（中国地质科学院，北京１０００３７）（地质矿产部，北京１００８１２）物探之所以在水文、工程、环境地质勘测工作中做出了卓越贡献，其重要原因之一就是有了技术性能良好的各种类型物探仪器。近十多年来由于电子技术的发展... 相似文献
3.
根据物探野外电法找矿工作的需要,应方法人员提出的技术性能要求,于1990年研制成功轻便型小功率JD(激电)发射机。该仪器专为测井和中等地电条件下深度小于500米钻孔的井中电法而设计的,适合于浅部找矿,工程物探、水文物探、坑道电法和室内岩矿标本测定等。文章着重介绍仪器的技术性能、工作原理及使用方法。 相似文献
4.
十年来物探、化探、遥感工作取得了长足的进步:开辟和扩大了新的应用领域,覆盖了地质工作中区域调查、矿产普查和水文、工程、环境地质三大方面,取得了一批好的地质效果,方法技术有了较大进步,有的达到了国际先进水平。“八五”期间和今后十年物探、化探、遥感要为提高地质调查程度和加深矿产地质背景的认识,提高找矿命中率,加大探测深度,扩大服务领域等方面发挥特殊的作用。区域性工作要有计划地提高覆盖率,开展综合编图,深化地质解释,为解决某些基础地质问题和矿产普查指明方向。矿产勘查工作要系统开展成矿远景区的物探、化探普查,加强异常查证,提高寻找隐伏矿和难识别矿的能力。水文、工程、环境调查方面要拓宽遥感、物探、化探的服务领域,充分发挥它们的作用。技术进步取决于方法、技术、设备等方面的进步和方法、技术的优化组合。为使技术水平有较大提高,要组织某些重大的技术课题进行研究和攻关,还要适时制订修订技术标准、规范、规程。 相似文献
5.
本文论述了现代物探在仪器设备、方法技术、解译推断方面所具有的“三高”、“三多”、“三优”之特点，以及物探应用方面攻深、攻新、攻精的三个目标，进而对我国物探队伍现状进行剖析，并提出若干举措和建议。 相似文献
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7.
《水文地质工程地质》1979,(1)
国家地质总局1978年在广西柳州召开了水文地质工程地质物探专业会议。 会议的目的是,总结交流建国廿多年来,特别是近几年来,水文物探工作和群众办物探的经验;找出与国内外先进水平的差距;讨论今后三年、八年的水文物探科技规划;制定加强水文物探工作和完成规划的具体措施。 会议介绍的主要技术经验有: 相似文献
8.
测井与井中物探的回顾和展望 总被引：5，自引：1，他引：5
本文简要地回顾了地矿部系统测井与井中物探近40年来尤其是近10年的发展历程。方法技术方面:采集系统从半自动、全自动模拟记录到数字记录;方法和井下仪器从几种到数十种,并逐步实现了系列化和组合化;刻度技术从无到有。凡此种种,标志着我们已进入数字化阶段。方法应用与软件开发方面:测井已成功地应用于煤田等20多种矿种;井中物探从金属矿扩大到水文、工程和环境地质领域中,并取得了良好的地质效果和经济效益;软件开发从起步到现场操作管理、数据采集、解释成图,以及室内进一步结合CT技术处理、解释、成图成像等。显示出已初步具备了现代钻孔地球物理技术的一些发展特点。最后,对前景作了展望。 相似文献
9.
经过几十年的历程,江苏物探技术的应用领域在不断拓宽。回顾了几十年来江苏物探工作发展的４个阶段。提出了在新的世纪中人口、资源、环境将是最为突出的三大热点问题。江苏物探工作任重道远,尤其在矿产资源勘查和环境检测与防治方面,将成为江苏物探技术大显身手的领域。 相似文献
10.
关于开发利用南京栖霞山矿区物化探资料的地质方法问题 总被引：3，自引：0，他引：3
长期以来,对地质、物探、化探资料的开发利用都是按专业分工,分开进行的。十多年来,笔者对地质、物探、化探资料的联合开发利用方法做了探索研究。其指导思想与方法是,以地质研究为先导,在此基础上挖掘物化探资料中的地质信息,然后综合地、物、化信息进行找矿预测。通过研究在江苏获得5个找矿靶区,共29个找矿地段和靶位,其中 相似文献
11.
讨论水文物探、遥感联合勘测方案在水文地质概查、普查、详查阶段中的应用;在特殊景观区、困难地区、地质条件复杂地区中的应用;在找水、管水、治水工作中的应用,并介绍若干实例. 相似文献
12.
Mike Müller-Petke 《中国地质大学学报(英文版)》2009,20(3)
In this review article, we present recent developments and Improvements in magnetic resonance sounding (MRS), a newly established geophysical exploration method that provides unique information about hydrogeophysical properties due to its direct sensitivity to hydrogen protons and proton dynamics. Starting with the most sophisticated and complete MRS formulation, we give a detailed view on how to solve the equation, i.e., inverting exactly for all model parameters: water content, decay time, and resistivity. Giving a short review of general inversion schemes used in geophysics, the special properties of MRS inversion are evaluated and the development of MRS inversion over recent years is shown. We present the extension of MRS to magnetic resonance tomography (MRT), i.e., the extension to two-dimensional investigations and appropriate inversions. Finally, we address restrictions, limitations, and inconsistencies as well as future developments. 相似文献
13.
Fores Benjamin Champollion C&#;dric Lesparre Nolwenn Pasquet Sylvain Martin Aur&#;lie Nguyen Fr&#;d&#;ric 《Hydrogeology Journal》2021,29(6):2077-2089
Hydrogeology Journal - A hydrogeophysical field experiment was conducted on a karst hydrosystem in the south of France to investigate groundwater transfer and storage variability at a scale of a... 相似文献
14.
Simon Damien Carrière Konstantinos Chalikakis Chloé Ollivier Tom Heath Marie Mangin Jean Kempf Jacques Bablon Randriatsitohaina Marina Gillon Théodore Razakamanana Jean Lapègue 《Environmental Earth Sciences》2018,77(21):734
Southwestern Madagascar is a semi-arid region and a hot-spot of global change. On the Mahafaly plateau, people live with quasi-permanent water stress and groundwater, the only available resource, is difficult to exploit due to a complex hydrogeological environment. A methodology (suitable for humanitarian projects; <?40 k€) was developed in four phases to assess the sustainable exploitation of the water resource: (A) regional scale exploration, (B) village scale exploration, (C) drilling campaign, and (D) hydro-climatic monitoring. This integrated hydrogeophysical approach involves geophysical measurements (262 TEM-fast soundings, 2588 Slingram measurements, 35 electrical soundings), hydrochemical analyses (112 samples), and a piezometric survey (127 measurements). Two groundwater resources were identified, one deep (below 150 m) and one shallow (<?20 m). Hydrochemical results highlighted the vulnerability of both resources: anthropic contamination for the shallower and seawater intrusion for the deeper. Therefore, subsequent geophysical surveys supported the siting of six boreholes and three wells in the shallow aquifer. This methodological approach was successful in this complex geological setting and requires testing at other sites in and outside Madagascar. The study demonstrates that geophysical results should be used in addition to drilling campaigns and to help monitor the water resource. In fact, to prevent over-exploitation, piezometric and meteorological sensors were installed to monitor the water resource. This unique hydro-climatic observatory may help (1) non-governmental organization and local institutions prevent future water shortages and (2) scientists to understand better how global change will affect this region of the world. 相似文献
15.
Jannis Epting Andreas Wüest Peter Huggenberger 《Central European Journal of Geosciences》2012,4(1):81-93
This article presents hydrogeophysical investigations performed in a well-developed, long-term hydrogeological gypsum karst research site where subsurface evaporite dissolution has led to the subsidence of a river dam and an adjacent highway; both constructed on gypsum-containing rock, southeast of Basel, Switzerland. An observation system was set up to improve the protection of surface and subsurface water resources during remedial construction measures of the highway and in order to understand the processes, as well as the temporal evolution, of rock water interaction (flow and dissolution). However, no detailed hydrogeological information beneath the river could be derived from the previous investigations. To supplement the basic knowledge on this area, underwater Electrical Resistivity Tomography (ERT) measurements were conducted in the river bed upstream of the dam. The ERT-data are interpreted together with drill-core information and a conceptual 3D-Model of the area behind the dam and beneath the river. Results help to delineate weathered zones, associated faults and the thickness of sediment deposits behind the dam, as well as to locate voids within the local karst system. The combination of the ERT and modeling allows the optimization of future site-specific remedial construction measures. 相似文献
16.
水文物探测井解释模型研究 总被引：1，自引：0，他引：1
周延奎 《水文地质工程地质》1997,24(3):47-50
本文从目前国内水文物探测井技术的现状和常规技术方法出发，通过对大量第三系、第四系松散岩石孔隙含水层水文物探测井实际资料的研究，对含水层的矿化度ＣＷ、导水系数Ｔ、渗透系数Ｋ、单位涌水量ｑ、孔隙度ψ、粒度中值Ｍｄ和泥质含量Ｖｓｈ等７个测井解释模型进行了探讨研究，并给出了具体方法。 相似文献
17.
Analysis of drawdown data from pumping tests is the most common method for identification of aquifer properties and estimation of hydraulic parameters in hydrogeology. Limited hard hydraulic data from wells, expensive and intrusive, can be supplemented with geophysical spatially distributed information. Gravity, sensible to mass variations, can provide information about hydraulic parameters and storage coefficients of aquifers. A satisfactory use of gravity requires the computation of temporal evolution of gravity anomalies related with the dynamic hydraulic process. For simplified and ideal problems, the calculation can be accomplished with analytical solutions. However, the limitations of analytical solutions in capturing some relevant characteristics, like heterogeneities, that require the use of numerical models, are well known. This article shows how the time-dependent gravity anomaly caused by a pumping test can be calculated in a unique code, in a coupled manner and in a single run. The methodology avoids the use and transference of data between various codes and can be utilized in a coupled hydrogeophysical inversion procedure. Additionally, it is flexible enough to include a wide range of characteristics that can be encountered in any pumping test, and is an adequate framework for field survey planning via analysis and study of time-dependent gravity curves. 相似文献
18.
本文通过以遥感和地面物探综合信息解译的方法,在追索断裂线状含水构造、圈定接触带含水构造、查明似层状含水构造、寻找火山岩覆盖下隐伏含水构造等方面的应用效果,论述了建立遥感(航卫牌解译)一地面物探(电阻率法或甚低频法、α卡法、激电衰变场法以及浅层地震法等)的找水方法系列,阐述了共必要性、合理性及可能性。并据此指出文水物探信息的立体化和多元化业已成为水文物探工作者的重要课题。 相似文献
19.
Geophysical techniques can help to bridge the inherent gap that exists with regard to spatial resolution and coverage for classical hydrological methods. This has led to the emergence of a new and rapidly growing research domain generally referred to as hydrogeophysics. Given the differing sensitivities of various geophysical techniques to hydrologically relevant parameters, their inherent trade-off between resolution and range, as well as the notoriously site-specific nature of petrophysical parameter relations, the fundamental usefulness of multi-method surveys for reducing uncertainties in data analysis and interpretation is widely accepted. A major challenge arising from such endeavors is the quantitative Integration of the resulting vast and diverse database into a unified model of the probed subsurface region that is consistent with all available measurements. To this end, we present a novel approach toward hydrogeophysical data integration based on a Monte-Carlo-type conditional stochastic simulation method that we consider to be particularly suitable for high-resolution local-scale studies. Monte Carlo techniques are flexible and versatile, allowing for accounting for a wide variety of data and constraints of differing resolution and hardness, and thus have the potential of providing, in a geostatistical sense, realistic models of the pertinent target parameter distributions. Compared to more conventional approaches, such as co-kriging or cluster analysis, our approach provides significant advancements in the way that larger-scale structural information contained in the hydrogeophysical data can be accounted for. After outlining the methodological background of our algorithm, we present the results of its application to the integration of porosity log and tomographic crosshole georadar data to generate stochastic realizations of the detailed local-scale porosity structure. Our procedure is first tested on pertinent synthetic data and then applied to a field dataset collected at the Boise Hydrogeophysical Research Site. Finally, we compare the performance of our data integration approach to that of more conventional methods with regard to the prediction of flow and transport phenomena in highly heterogeneous media and discuss the Implications arising. 相似文献
20.
Applications of hydrogeophysics in characterization of subsurface architecture and contaminant plumes 
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下载免费PDF全文 Geophysical methods have been applied to a wide range of hydrogeological problems. With improvement in geophysical inversion algorithms and measurement tools, significant achievements have been made in the characterization of subsurface architecture, time-lapse monitoring of hydrogeological process and contaminant plumes delineation. In this paper, we summarize the geophysical methods that are most widely used in hydrogeology including Electrical Resistivity Tomography (ERT), Induced Polarization (IP), Ground Penetrating Radar (GPR) and Electromagnetic Induction (EMI). Three examples including lab and field works are used to demonstrate current application of geophysical methods for characterizing subsurface architecture and contaminant plumes. Though great progress has been made in hydrogeohysics over the last few decades at home and abroad, challenges still remain in practical applications. More recently, hydrogeophysics continues to develop in the areas of establishment of hydrogeophysical models, large-scale architecture characterization, uncertainty analysis, biogeochemical process monitoring and ecosystem science. 相似文献