ASTM F432-2004 Standard Specification for Roof and Rock Bolts and Accessories《屋顶和石栓及附件的标准规范》.pdf
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1、Designation: F 432 04Standard Specification forRoof and Rock Bolts and Accessories1This standard is issued under the fixed designation F 432; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in pa
2、rentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers the chemical, mechanical, anddimensional requirements for roof and rock bolts and accesso-ries. Addressed in this speci
3、fication are double-end threadedand slotted steel bars; fully grouted bolts and threaded bars;mechanical anchorage devices used for point anchorage appli-cations; roof truss systems; partially grouted deformed bolts;formable anchorage devices; and other frictional anchoragedevices. All of these prod
4、ucts represent various designs usedfor ground support systems. This specification can be revisedto address new technologies.1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.1.3 This hazard statement applies only to S
5、ection 10, TestMethods of this specification. This standard does not purportto address the safety concerns, if any, associated with its use.It is the responsibility of the user of this standard to establishappropriate safety and health practices and determine theapplicability of regulatory limitatio
6、ns prior to use.2. Referenced Documents2.1 ASTM Standards:2A 29/A 29M Specification for Steel Bars, Carbon and Alloy,Hot-Wrought, General Requirements forA 47/A 47M Specification for Ferritic Malleable Iron Cast-ingsA 194/A 194M Specification for Carbon and Alloy SteelNuts for Bolts for High-Pressur
7、e or High-TemperatureService, or BothA 220 Specification for Pearlitic Malleable IronA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 536 Specification for Ductile Iron CastingsA 563 Specification for Carbon and Alloy Steel NutsA 568/A 568M Specification for Steel, Sheet,
8、Carbon, andHigh-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,General Requirements forA 615/A 615M Specification for Deformed and PlainBillet-Steel Bars for Concrete ReinforcementA 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel ProductsD 1248 Specification for Polyethyl
9、ene Plastics ExtrusionMaterials for Wire CableF 436 Specification for Hardened Steel WashersF 606 Test Methods for Determining the Mechanical Prop-erties of Externally and Internally Threaded Fasteners,Washers, and Rivets2.2 ASME Standards:3B 1.1 Unified Screw ThreadsB 1.3M Screw Thread Gaging Syste
10、ms for DimensionalAcceptabilityInch and Metric Screw ThreadsB 18.2.2 Square and Hex Nuts3. Terminology3.1 Definitions:3.1.1 bearing plates, plate washers, mine roof platesplates that serve to distribute the load from the exposed end ofthe bolt or threaded bar to the rock face or intermediatemember.3
11、.1.1.1 header plateslarge rectangular bearing plates,usually 6 in. (152 mm) wide by 16 to 18 in. (406.4 to 457.2mm) long, or any other shape with an equivalent area, used insubstitution for wooden header blocks for wider distribution ofthe bolt load than is possible with standard bearing plates.3.1.
12、2 bendable boltsbolts furnished with an altered sec-tion at some location, to be specified by the customer, at whichthe bar will bend.1This specification is under the jurisdiction of ASTM Committee F16 onFasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,Nuts, Rivets, a
13、nd Washers.Current edition approved Aug. 1, 2004. Published August 2004. Originallyapproved in 1975. Last previous edition approved in 2001 as F 432 95 (2001).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of
14、ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990.1*A Summary of Changes section appears at the end of this standa
15、rd.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.2.1 DiscussionBending is necessary to permit instal-lation of bars longer than the mine opening height. This alteredsection may be produced by hot or cold forging, or by shearing,
16、sawing, trimming, machining, grinding, or a combination ofthese processes.3.1.3 beveled washerswashers whose faces are at an anglepermitting a headed bolt or threaded bar to be installed at aslight angle to the rock face and yet maintained the face of thebolt head perpendicular to the bolt axis.3.1.
17、4 chemical anchorschemical materials that provideanchorage between the bolt or bar and the drilled hole.3.1.5 expansion shellsanchorage devices that expand togrip the sides of a drilled hole mechanically and transfer loadfrom the location of the anchor to the bar or bolt.3.1.6 extensionsthreaded bar
18、s used to extend the length ofthreaded or threaded slotted bars.3.1.7 formable anchorage devices any roof support de-vices that provide anchorage through some means of physicalinterference and engagement of the surface of a bar or bolt withany formable material, other than chemical grout, in a bore-
19、hole.3.1.8 frictional anchorage devices roof support devicesthat are designed so that the holding force acts over the fullcontact length.3.1.9 fully grouted bolts and threaded barsdeformed barsor plain bars used with full-length grouting and having specialdeformations or other design features to pro
20、vide interlockingbetween the steel and the grout.3.1.10 hardened washerswashers that have been hard-ened by heat treatment to provide consistency to the torquetension relation necessary to control installation tension ofbolts and threaded bars.3.1.11 minimum non-seizure load (MNSL)the load levelin p
21、ounds through which bolt/plug thread seizure must notoccur.3.1.12 minimum ultimate load (MUL)the load level inpounds through which bolt/plug thread failure must not occur.3.1.13 rollers, camsmoving devices that, when used withinternally threaded cylinders containing external tapered slots,provide ex
22、pansion to grip the sides of a drilled hole mechani-cally and transfer load from the location of the anchor to thebar or bolt.3.1.14 roof and rock boltsheaded hot-rolled bars withcold-rolled or machine-cut threads at the end, to be used withanchorage devices to hold up mine roofs, hold back walls, o
23、rhold down equipment or foundations.3.1.15 roof truss systema roof support system incorporat-ing bolts that are joined together by crossmember(s) that is(are) tensioned by design.3.1.16 spherical washers or seatswashers that are flat onone side and have a spherical face on the other side. Thecombina
24、tion of spherical washer together with a depression inthe bearing plate produces a ball-and-socket joint permittingbolts to be installed at a slight angle to the rock face while stillmaintaining the face of the bolt head perpendicular to the boltaxis.3.1.17 tapered wedgesplain wedges that provide th
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