ASTM D5753-2018 5000 Standard Guide for Planning and Conducting Geotechnical Borehole Geophysical Logging《岩土钻孔地球物理测井规划和实施标准指南》.pdf
《ASTM D5753-2018 5000 Standard Guide for Planning and Conducting Geotechnical Borehole Geophysical Logging《岩土钻孔地球物理测井规划和实施标准指南》.pdf》由会员分享,可在线阅读,更多相关《ASTM D5753-2018 5000 Standard Guide for Planning and Conducting Geotechnical Borehole Geophysical Logging《岩土钻孔地球物理测井规划和实施标准指南》.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D5753 18Standard Guide forPlanning and Conducting Geotechnical BoreholeGeophysical Logging1This standard is issued under the fixed designation D5753; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last rev
2、ision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 Purpose and Application:1.1.1 This guide covers the documentation and generalprocedures necessary to plan and conduct a geoph
3、ysicalborehole logging program as commonly applied to geologic,engineering, groundwater, and environmental (hereafter re-ferred to as geotechnical) site characterizations.1.1.2 This guide applies to commonly used logging methods(see Tables 1 and 2) for geotechnical site characterizations.1.1.3 This
4、guide provides an overview of the following:(1) the uses of single borehole geophysical methods,(2) general logging procedures,(3) documentation,(4) calibration, and(5) factors that can affect the quality of borehole geophysi-cal logs and their subsequent interpretation. Log interpretationis very im
5、portant, but specific methods are too diverse to bedescribed in this guide.1.1.4 Logging procedures must be adapted to meet theneeds of a wide range of applications and stated in generalterms so that flexibility or innovation are not suppressed.1.1.5 To obtain detailed information on operating metho
6、ds,publications (for example, 1, 2, 3, 4, 5, 6, 7, 8, and 9)2shouldbe consulted. A limited amount of tutorial information isprovided, but other publications listed herein, including aglossar y of terms and general texts on the subject, should beconsulted for more complete background information.1.2
7、Limitations:1.2.1 This guide is not meant to describe the specific orstandard procedures for running each type of geophysical log,and is limited to measurements in a single borehole.1.2.2 Surface or shallow-depth nuclear gages for measuringwater content or soil density (that is, those typically thou
8、ght ofas construction quality assurance devices), measurementswhile drilling (MWD), cone penetrometer tests, and loggingfor petroleum or minerals are excluded.1.2.3 This guide offers an organized collection of informa-tion or a series of options and does not recommend a specificcourse of action. Thi
9、s document cannot replace education orexperience and should be used in conjunction with professionaljudgment. Not all aspects of this guide may be applicable in allcircumstances. This ASTM standard is not intended to repre-sent or replace the standard of care by which the adequacy ofa given professi
10、onal service must be judged, nor should thisdocument be applied without consideration of a projects manyunique aspects. The word “Standard” in the title of thisdocument means only that the document has been approvedthrough the ASTM consensus process.1.3 Precautions:1.3.1 If the method is used at sit
11、es with hazardous materials,operations, or equipment, it is the responsibility of the user ofthis guide to establish appropriate safety and health practices,and to determine the applicability of regulations prior to use.1.4 This standard does not purport to address all of thesafety concerns, if any,
12、 associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with international
13、ly recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.1This guide is under the jurisdiction ofASTM Committee D
14、18 on Soil and Rockand is the direct responsibility of Subcommittee D18.01 on Surface and SubsurfaceCharacterization.Current edition approved Feb. 1, 2018. Published March 2018. Originallyapproved in 1995. Last previous edition approved in 2010 as D575305(2010).DOI: 10.1520/D5753-18.2The boldface nu
15、mbers in parentheses refer to a list of references at the end ofthis standard.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in
16、 accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1TABLE 1 Common Geophysical
17、 LogsType of Log(References)Varieties and RelatedTechniquesProperties MeasuredRequired HoleConditionsOther LimitationsTypical MeasuringUnits and Calibrationor StandardizationBrief ProbeDescriptionSpontaneous potential(7,8,12)differential electric potentialcaused by salinitydifferences in boreholeand
18、 interstitial fluids,streaming potentialsuncased hole filledwith conductive fluidsalinity differenceneeded betweenborehole fluid andinterstitial fluids; needscorrection for otherthan NaCl fluidsmV; calibrated powersupplyrecords naturalvoltages betweenelectrode in well andanother at surfaceSingle-poi
19、nt resistance(7)conventional,differentialresistance of rock,saturating fluid, andborehole fluiduncased hole filledwith conductive fluidnot quantitative; holediameter effects aresignificant;V- meter constant currentapplied across leadelectrode in well andanother at surface ofwellMulti-electroderesist
20、ivity (7,8,13)various normalfocused, guard, lateralarraysresistivity andsaturating fluidsuncased hole filledwith conductive fluidreverses or providesincorrect values andthickness in thin beds-m; resistors acrosselectrodescurrent and potentialelectrodes in probeInduction (10, 11) various coil spacing
21、s conductivity orresistivity of rock andsaturating fluidsuncased hole ornonconductive casing;air or fluid fillednot suitable for highresistivitiesmS or -m; standarddry air zero check orconductive ringtransmitting coil(s)induce eddy currentsin formation; receivingcoil(s) measuresinduced voltage froms
22、econdary magneticfieldGamma (5,7,22) gamma spectral (44) gamma radiation fromnatural or artificialradioisotopesany hole conditions may be problem withvery large hole, orseveral strings ofcasing and cementpulses per second orAPI units; gammasourcescintillation crystal andphotomultiplier tubemeasure g
23、ammaradiationGamma-gamma (23,24)compensated (dualdetector)electron density optimum results inuncased hole; can becalibrated for casingsevere hole-diametereffects; difficultymeasuring formationdensity through casingor drill stemgs/cm3; Al, Mg, orLucite blocksscintillation crystal(s)shielded fromradio
24、active sourcemeasure Comptonscattered gammaNeutron (7, 14, 25) epithermal, thermal,compensated sidewall,activation, pulsedhydrogen content optimum results inuncased hole; can becalibrated for casinghole diameter andchemical effectspulses/s or API units;calibration pit orplastic sleevecrystal(s) or g
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMD575320185000STANDARDGUIDEFORPLANNINGANDCONDUCTINGGEOTECHNICALBOREHOLEGEOPHYSICALLOGGING 岩土 钻孔 地球物理
链接地址:http://www.mydoc123.com/p-520585.html