ASTM D1452-2007a Standard Practice for Soil Investigation and Sampling by Auger Borings《用螺旋钻孔法对土壤调查和取样的标准实施规程》.pdf
《ASTM D1452-2007a Standard Practice for Soil Investigation and Sampling by Auger Borings《用螺旋钻孔法对土壤调查和取样的标准实施规程》.pdf》由会员分享,可在线阅读,更多相关《ASTM D1452-2007a Standard Practice for Soil Investigation and Sampling by Auger Borings《用螺旋钻孔法对土壤调查和取样的标准实施规程》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 1452 07aStandard Practice forSoil Investigation and Sampling by Auger Borings1This standard is issued under the fixed designation D 1452; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A n
2、umber in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This practice covers equipment and procedures for the
3、use of earth augers in shallow geotechnical exploration. Thispractice does not apply to sectional continuous flight augers.1.2 The values stated in inch-pound units are to be regardedas the standard. The SI values given in parentheses areprovided for informational purposes only.1.3 This standard doe
4、s not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.4 This practice offers a set of in
5、structions for performingone or more specific operations. This document cannot replaceeducation or experience and should be used in conjunctionwith professional judgment. Not all aspects of this practice maybe applicable in all circumstances. This ASTM standard is notintended to represent or replace
6、 the standard of care by whichthe adequacy of a given professional service must be judged,nor should this document be applied without consideration ofa projects many unique aspects. The word “Standard” in thetitle of this document means only that the document has beenapproved through the ASTM concen
7、sus process.2. Significance and Use2.1 Auger borings often provide the simplest method of soilinvestigation and sampling. They may be used for any purposewhere disturbed samples can be used and are valuable inconnection with ground water level determination and indica-tion of changes in strata and a
8、dvancement of hole for spoonand tube sampling. Equipment required is simple and readilyavailable. Depths of auger investigations are, however, limitedby ground water conditions, soil characteristics, and theequipment used.3. Apparatus3.1 Hand-Operated Augers:3.1.1 Helical AugersSmall lightweight aug
9、ers generallyavailable in sizes from 1 through 3 in. (25.4 through 76.2 mm).3.1.1.1 Spiral-Type Auger, consisting of a flat thin metalstrip, machine twisted to a spiral configuration of uniformpitch; having at one end, a sharpened or hardened point, witha means of attaching a shaft or extension at t
10、he opposite end.3.1.1.2 Ship-Type AugerSimilar to a carpenters wood bit.It is generally forged from steel and machined to the desiredsize and configuration. It is normally provided with sharpenedand hardened nibs at the point end and with an integral shaftextending through its length for attachment
11、of a handle orextension at the opposite end.3.1.2 Open Tubular Augers, ranging in size from 1.5through 8 in. (38.1 through 203.2 mm) and having the commoncharacteristic of appearing essentially tubular when viewedfrom the digging end.3.1.2.1 Orchard-Barrel Type, consisting essentially of a tubehavin
12、g cutting lips or nibs hardened and sharpened to penetratethe formation on one end and an adaptor fitting for an extensionor handle on the opposite end.3.1.2.2 Open-Spiral Type, consisting of a flat thin metal stripthat has been helically wound around a circular mandrel toform a spiral in which the
13、flat faces of the strip are parallel tothe axis of the augered hole. The lower helix edges arehard-faced to improve wear characteristics. The opposite end isfitted with an adaptor for extension.3.1.2.3 Closed-Spiral TypeNearly identical to the open-spiral type except the pitch of the helically wound
14、 spiral ismuch less than that of the open-spiral type.3.1.3 Post-Hole Augers, generally 2 through 8 in. (50.8through 203.2 mm), and having in common a means ofblocking the escape of soil from the auger.3.1.3.1 Clam-Shell Type, consisting of two halves, hinged toallow opening and closing for alternat
15、ely digging and retriev-ing. It is not usable deeper than about 3.5 ft (1.07 m).3.1.3.2 Iwan Type, consisting of two tubular steel segments,connected at the top to a common member to form a nearlycomplete tube, but with diametrically opposed openings. It isconnected at the bottom by two radial blade
16、s pitched to serveas cutters which also block the escape of contained soil.Attachment of handle or extension is at the top connector.3.2 Machine-Operated Augers:1This practice is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.02 on S
17、ampling andRelated Field Testing for Soil Evaluations.Current edition approved Sept. 1, 2007. Published October 2007. Originallyapproved in 1957. Last previous edition approved in 2007 as D 1452 07.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 B
18、arr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.1 Helical Augers, generally 8 through 48 in. (203.2through 1219 mm), consisting essentially of a center shaftfitted with a shank or socket for application of power, andhaving one to three complete 360 (6.28-rad) spira
- 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:
- ASTMD14522007ASTANDARDPRACTICEFORSOILINVESTIGATIONANDSAMPLINGBYAUGERBORINGS 螺旋 钻孔 土壤调查 取样 标准 实施 规程 PDF

链接地址:http://www.mydoc123.com/p-509830.html