DSI Ground Support Mechanical Rockbolts

7/29/2019 DSI Ground Support Mechanical Rockbolts

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Mining and Tunneling

Products Catalogue

DYWIDAG-SYSTEMS INTERNATIONAL

www.dsigroundsupport.com


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Table of Contents Section

Mechanical Rock Bolts, Extension Bolts & Stelpipe Bolts 1

Rebar Rock Bolts 2

Cable Bolts 3

Friction Stabilizers & Expandable Bolts 4

Threadbar 5Trusses & Slings 6

Specialty Bolts 7

Fiberglass Bolts 8

Resins and Cement Cartridges 9

Mesh, Straps & Plate Washers 10

Eyebolts, Scaling Bars & Utility Hangers 11

Tools & Hardware, Drilling Consumables 12

Lattice Girders, Steel Arches & Props 13

High Performance Grouts & Application Equipment 14

Drilling Fluids 15

Miscellaneous 16


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09/01/08 www.dsigroundsupport.com


Section1-Page1

All dimensions in accordancewith ASTM F432 & CSA M430-90 specifications

5/8" Bolt 3/

4" Bolt

( (0.68" ( 17.3 mm)E Body Diameter

F Head Across Flats

G Head Across Corners

H Head Height

I Thread Size, left & right

Head Type

11/8" Square

All bolts

All bolts

T-Dome

11/8" Square

11/8" Square & T-Dome

T-Dome

1.088" - 1.125" (27.64 - 28.58 mm)0.906" - 0.938" (23.01 - 23.83 mm)

1.425" - 1.591" (36.19 - 40.41 mm)1.244" - 1.326" (31.60 - 33.68 mm)

0.40" (10.16 mm)

5/8" - 11 UNC 3/4" - 10 UNC 7/8" - 9 UNC

( (0.56" ( 14.2 mm)

length as specifiedH

F

G

E

I

thread length as specified

5

33/4" (95 mm) min.12" (305 mm) max.

(6 mm) up to 10' (3 m)(13 mm) over 10' (3 m)

1/4"1/2"

+

+

USA manufactured bolts: made to ASTM F432 and MSHA approved

D

SI

G3 548

bolt length

7/8" Bolt

( 0.79" (( 20.1 mm

Mechanical Rock Bolts (Forged Head & Threaded)

Nominal 5/8" and 3/4" sizes and 7/8"

T-Dome (15/16" Square)

Threaded Both End (TBE)

Forged Head (11/8" Square)

Dimensions

continued


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Section1-Page2

Mechanical Rock Bolts (Forged Head & Threaded) continued

Technical DataC1060 Steel C1070 C1070M

20,000 lbs(89 kN)

33,400 lbs(148 kN)

17,100 lbs(76 kN)

31,200 lbs(139 kN)

28,400 lbs(126 KN)

35,000 lbs(156 KN)

13,600 lbs(60 kN)

22,600 lbs(100 kN)

Yield Strength, min.

Tensile Strength, min.

Minimum 8% Minimum 2.2%Minimum 12%UltimateAxial Strain

5/8" Bolt 5/8" TBE Bolt3/4" Bolt5/8" Bolt

All mechanical& physicalpropertiesin accordancewith ASTM F432, ASTM A29 & CSA M430-90 specifications5/8" steel special order

A29 (gr75 for USA)

Yield Strength, min.

Tensile Strength, min.

Minimum 8%UltimateAxial Strain

17,000 lbs(75 kN)

22,600 lbs(100 kN)

5/8" Bolt

25,100 lbs(111 kN)

33,400 lbs(149 kN)

3/4" Bolt

C1055 (A29)

15,600 lbs(69 kN)

24,000 lbs(106 kN)

Minimum 10%

5/8" Bolt

34,700 lbs(154.3 kN)

46,200 lbs(205.5 kN)

7/8" Bolt


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Section1-Page3

Installation Accessories

Mechanical Rock Bolts

Nuts

sFOR4"%ROCKBOLTSONLY

sFOR5/8AND3/47/85.#THREAD

s!&/8SQUARE

s4

Expansion Shells

sFOR5/83/45.#THREADS7/8WHEREAPPLICABLE

s/32MMHOLESIZEMODEL&&,/4"

s/4MMHOLESIZEMODEL&/4",/4"

s3/8MMHOLESIZEMODEL&",7/8"

s/2MMHOLESIZEMODEL$,,

s3/4MMHOLESIZEMODEL$,

Hardened Round Washers

sTO!34-&SPECIlCATIONS

sFOR5/8AND3/4THREAD

s)$/"

s/$/32"

s4TO

Spherical Seat (Compensation) Washers

sDUCTILEIRON!34-!'R

sFOR5/8THREAD

)$//$(3/4MODEL437

)$5//$(/2MODEL437

sFOR3/4THREAD

)$3//$(/MODEL437

)$5//$(/2MODEL437

Installation Tools - for stopers/jacklegs

sFORFORGEDHEADROCKBOLTS

/8SQUAREDRIVER

5/SQUAREDRIVERFOR4$OMEBOLTS

sFOR4"%BOLTS

/8SQUARENUTRUNNER

sAVAILABLEWITH7/8HEXSHANKORSOCKET


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Section1-Page4

Extension Bolt (7/8" High Tensile)

2 Part with Coupler

Dimensions

Technical Data

Hardware


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Section1-Page5

Stelpipe Bolts (Groutable Rock Bolts)

Nominal " and 1" sizes

Dimensions

Roll Threading

Technical Data


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Section1-Page6

Installation Accessories

Stelpipe Rock Bolts

Nuts

sFOR3/4THREAD

!&/8SQUARE

4

sFORTHREAD

!&5

/8HEX 43/4"

Expansion Shells

sFOR3/4THREADMODEL&/4"

,/4"

/4MMHOLESIZEsFORTHREADMODEL&&

,/4"

3/4

Hardened Round Washers

sTO!34-&SPECIlCATIONS

sFOR3/4THREAD

)$3//$5/324TO

sFORTHREAD

)$/8/$4TO

Spherical Seat (Compensation) Washers

sDUCTILEIRON!34-!'R

sFOR3/4THREAD

)$3//$(3/MODEL437

)$5//$(/2MODEL437

sFORTHREAD

)$//$(/2MODEL437

Installation Tools - for stopers/jacklegs

s/8SQUARENUTRUNNERFOR3/4BOLTS

s5/8HEXNUTRUNNERFORBOLTS

sAVAILABLEWITH7/8HEXSOCKET

OR/4LONG7/8HEXSHANK


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Section1-Page7

Condition of Threads4HREADSSHOULDBEINSPECTED

BEFOREINSTALLATION)NCREASEDFRICTIONONTHETHREADS

ADVERSELYAFFECTSTHETORQUETENSIONRELATIONSHIP

Fillet on Forged Head &ORGED HEAD ROCK BOLTS

SHOULDBEINSPECTEDTOENSUREAlLLETOF /RADIUS

ISPRESENTWHERETHESHAFTCONNECTSTOTHEFORGED

HEAD3HARPTRANSITIONSMAYWEAKENTHEBOLT

Hole Length(OLESTOOSHORTFORTHEBOLTINUSE

MAY CAUSE THE SHELL TO DISTORT OR INHIBIT PROPER

TENSIONINGOFTHEBOLT'OODPRACTICESUGGESTSTHAT

THEHOLELENGTHSHOULDBEEQUALTOTHEBOLTLENGTH

PLUSSHELLLENGTH

Hole Condition4HEHOLESHOULDBECLEANEDAND

EXAMINED TO ENSURE THE BOLT WILL INSERT SMOOTHLY

$AMAGETOTHESHELLMAYRESULTIFITMUSTBEFORCED

INTOTHEHOLE

continued

Installation Quality Guidelines

Mechanical Rock Bolts

4HE FOLLOWING ARE ITEMS TO BE AWARE OF WHEN

INSTALLINGMECHANICALROCKBOLTSFORGEDHEAD AND

THREADEDBOTHEND;4"%=BOLTS

Type of Ground4HENATUREOFTHEGROUNDMUSTBE

EVALUATED3OFTSTRATAREQUIRESALARGERPLATEWASHER

ANDOR EXPANSION SHELL BEARING AREA 'REATER

EXPANSION OF THE EXPANSION SHELL LEAVES MAY BE

REQUIRED3OFTGROUNDRESULTSINLARGERHOLESIZESFORAGIVENBIT SIZE BIT RATTLINGAND REAMING 3PECIAL

ANCHORSAREAVAILABLEFORSOFTGROUND%XCESSIVELY

HARD GROUND CAN BE DETRIMENTAL AS WELL (ARD

GROUNDCANRESULTINPOORANCHORAGEASTHESHELLIS

UNABLETOhBITEvINTOTHEROCK

Scaling4HEGROUNDSHOULDBETHOROUGHLYSCALED

IEBARREDDOWNBEFOREDRILLINGANDBOLTING0ERIODIC

RESCALINGMAYBEREQUIREDWHILEDRILLING

3TRENGTHAND9IELD#APACITYOF"OLT4HEMECHANICAL

PROPERTIES OF THE BOLT SHOULD BE APPROPRIATE FOR

THE GROUND CONDITIONS BOLT LENGTH AND BOLTINGPATTERN0ULLTESTSANDTORQUETENSIONTESTSSHOULD

BE PERFORMED TO DETERMINE YIELD STRENGTHS AND

ANCHORAGECAPACITIESOFTHEBOLTSBEINGUSED


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Section1-Page8

Oversize Holes(OLES /8OVERSIZEDCAN REDUCE

HOLDINGSTRENGTHBY/VERSIZEDHOLESCANBE

CAUSED USING THE WRONGBIT SIZELEAVING THE DRILL

RUNNINGWHILEmUSHINGTHEHOLESOFTGROUNDFAULTS

GOUGEETCANDBENTDRILLSTEEL

Undersized Holes5NDERSIZEDHOLESWILLNOTPERMIT

THEPLUGINTHEEXPANSIONSHELLTOSEATPROPERLY4HE

LEAVES ORBAIL CAN BREAK AND DISTORT UPON FORCED

ENTRY5NDERSIZEDHOLESAREUSUALLYCAUSEDBYWORN

BITSANDORWRONGBITSIZESBEINGUSED

Friction Flair Expansion Shells ! RECENT

IMPROVEMENT IN EXPANSION SHELL DESIGN IS THE

ADDITIONOF mAIRSORWINGSONTHEBAILSTRAPATTHE

BOTTOM OF THE LEAVES )NSTALLATION IS IMPROVED AS

THEREISNONEEDTOSETTHEANCHORTOKEEPTHEBOLT

FROMSLIDINGOUTOFTHEHOLEDURINGINSTALLATION4HE

ANCHOR SETS UP FASTER AS THE PLUG ENGAGES THELEAVESFREELY3PINNINGOFTHEANCHORINTHEHOLEIS

PREVENTEDTHEREBYELIMINATINGTHEPRINCIPALCAUSE

OFBOLTFAILUREUPONINSTALLATION

Resin Anchors 5SINGARESINCARTRIDGETOASSIST

IN ANCHORING MECHANICAL ROCK BOLTS IS GAINING

POPULARITY)FUSEDWITHANEXPANSIONSHELLTHESHELL

MUSTHAVEPROVISIONSFORTHEPASSAGEOFRESINAROUND

THESHELLWEDGE4HISENSURESPROPERENCAPSULATION

OFTHEEXPANSIONSHELLWITHOUTCAUSINGANYDAMAGE

TOTHEASSEMBLY

Expansion Shell Plastic Sleeve4HEPLASTICSLEEVE

HOLDINGTHELEAVESTOGETHERONANEXPANSIONSHELL

SHOULDBEREMOVEDPRIORTOINSTALLATION)FLEFTONIT

COULDRESULTINPOORANCHORAGE

Set Up of Expansion Shell)MMEDIATELYPRIORTO

INSTALLATION THE EXPANSION SHELL SHOULD BE SET TO

THE CORRECT DIAMETER TO ENABLE THE BOLT TO BE

PUSHEDUPTHEHOLEBYHANDSETANDANCHORED)F

NOT EXPANDED ENOUGH THERE WILL BE DIFlCULTIES IN

ANCHORING )FEXPANDEDTOOMUCH THE END OF THEBOLTCANBREAKTHEBAILORLEAFATTACHMENTPRIORTO

THELEAVESBEINGSET

continued

Installation Quality Guidelines continued


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Section1-Page9

)N ADDITION TOBEING THE PROPER SIZE FOR THE ROCKBOLTHEADORNUTTHEDOLLYMUSTALSOHAVESUFlCIENT

SOCKETDEPTHTOALLOWNUTSTOBERUNONTOTHEENDS

OF4"%BOLTS

Proper Torquing of Bolts 4YPICALLY TONS OF

INSTALLED TENSION ISREQUIRED FOR A ROCKBOLT TOSET

THEANCHORANDTENSIONTHEBOLTTOOFTHEYIELD

STRENGTH!NAPPROXIMATELYLINEARRELATIONSHIPEXISTS

BETWEEN THE APPLIED TORQUE AND THE TENSION INA

FORGEDHEADROCKBOLT

continued


DSI - Minings T-Dome FORGED HEAD ROCK BOLTSHAVEASPECIALCONCAVEHEADDESIGNWHICHWHEN

USEDINCONJUNCTIONWITH4$OMEPLATESWORKLIKE

ABALLANDSOCKETANDCORRECTFORANGULARITYWITHOUT

REQUIRINGEXTRAWASHERS

Rock Bolt Dollies 2OCK BOLT INSTALLATION DOLLIES

SHOULD ONLY TRANSFERROTATIONAL ENERGY TO THE ROCK

BOLTDURINGINSTALLATIONNOTPERCUSSIVEENERGYWHEN

STOPERSAND JACKLEGSAREUSED4HESHANKENDOF

THEDOLLIEMUSTBESHORTENOUGHTOAVOIDCONTACT

WITH THE DRILL PISTON 4YPICALLY THESE ROCK BOLT

DOLLIESHAVEA7/8HEXSHANKANDAREONLY /4LONG

As TBE bolts turn at both ends during torquing, they generally apply more tension for the same

amount of applied torque due to the reduced resistance to friction. However, as a generality:

All mechanical rock bolts should be torqued to a minimum of 150 ft-lbs (per ASTM F432).


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Section1-Page10

BERECORDEDONTHEWALLORPLATEOFTHEBOLTWHICH

WILL PERMIT MONITORING OF THE LOAD ON THE BOLT

DURING THE MINING CYCLE )F NECESSARY BOLTS CAN

ALSO BE RETORQUED IF LOSS IN TENSION OCCURS

4ORQUETESTINGISBESTDONEBYACREWSUPERVISOR

ORDEDICATEDTECHNICIANWHILEVISITINGWORKAREAS

DURINGHISROUNDS

Education0ROPEREDUCATIONOFMININGPERSONNEL

AND SUPERVISORS IS MANDATORY !S MANPOWER

TURNOVER IS RELATIVELY FREQUENT IN BOLTING CREWS

EDUCATIONMUSTBECONTINUOUS&ORGETTHISANDYOU

WASTEMONEY

Packaging6ENDORSMUSTPACKAGEBOLTINGPRODUCTS

IN AN ACCEPTABLE MANNER BOTH FOR CONVENIENCE

OF USE AS WELL AS PREVENTION OF DAMAGE TO THE

PRODUCT DURING SHIPPING AND HANDLING 0ARTICULAR

CAREMUSTBEPAIDTOWRAPPINGOFTHETHREADENDS

TOPREVENTDAMAGEANDCORROSION'OODPACKAGING

COSTSMOREBUTISWORTHTHEADDEDCOSTBYREDUCING

WASTAGEONSITE

continued


Overtorquing/VERTORQUINGOFTHEBOLTSMUSTBE

AVOIDED7ITHFORGEDHEADBOLTSTHEHEADSCANBE

WEAKENEDORSHEAREDOFF/VERTORQUINGMAYTENSION

THEBOLTPASTITSYIELDPOINTWHICHISUNDESIRABLE

Undertorquing5NDERTORQUINGCANRESULTINPOOR

ANCHORAGE5NDER TENSIONEDBOLTS ARE PARTICULARLY

SUSCEPTIBLETOBLASTINGDAMAGE"OLTSWILLNOTAPPLY

SUFlCIENTCOMPRESSIVEFORCETOTHEGROUNDASPER

DESIGNREQUIREMENTS

Monitoring )N PRACTICE ROCK BOLT TENSION OFTEN

DROPS AFTER INSTALLATION %XPANSION SHELLS CANSLIP

DUE TO BLASTING VIBRATIONS SHELLS CAN MOVE AS

HIGHSTRESSCONCENTRATIONSALONGTHE LEAVESCAUSE

LOCALIZEDFAILUREOFTHEGROUNDANDlNALLYTHEROCK

CANFAILUNDERTHEPLATEWASHER

4HE INSTALLATION OF ANY GROUND SUPPORT SYSTEM

MUST BE MONITORED TO ENSURE PROPER PROCEDURES

AND INSTALLATION QUALITY ARE MAINTAINED &OR ROCK

BOLTSTHISREQUIRESVERIFYINGTORQUEANDTHEPLACEMENT

AND SPACING OF BOLTS 4ORQUE MEASUREMENTS CAN


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Section1-Page11

Matching Bolt and Shell Threads 7HILE .ORTH

!MERICAN MINES TYPICALLY USE 5.# THREAD SPECS

OTHERCOUNTRIESCANUSEDIFFERENTTHREADTYPES#ARE

MUST BE TAKEN NOT TOMISMATCH SHELLS AND BOLTS

FROMVARIOUSMANUFACTURERS!MINIMUM5.#CLASS

!THREADSPECSHOULDBEMETONALLTHREADSASPER

!34-&GUIDELINES$3)-ININGEXCEEDS!34-

SPECSANDROLLSTHREADSTOACLASS!SPECIlCATION

Support Nuts 7HILE THEY ARE SOMETIMES USED

ON4"%BOLTSTHEPRACTICEOFINSTALLINGANUTBELOW

THEANCHORSHELLSHOULDBEAVOIDEDONFORGEDHEAD

BOLTS )F THE SUPPORT NUT COMES IN CONTACT WITH

THESHELLFRICTIONBETWEENTHESETWOSURFACESWILL

PREVENTTHEBOLTFROMELONGATINGPROPERLYANDWILL

GIVEFALSETORQUEREADINGSASTHEBOLTISTENSIONED

(EADED BOLTSSHOULD BEFREE TOELONGATEINTO THE

HOLETHROUGHTHEEXPANSIONSHELLTBE Bolt Nuts$ONOTRUNTHENUTONA4"%BOLT

TO THE END OF THE THREADS AND ONTO THE SHANK

3TRENGTHCANBEREDUCEDBYASMUCHAS%ACH

REVOLUTION OF THE NUT ONTO THE SHANKREDUCES THE

THREADENGAGEMENTLENGTH

Notching of TBE bolt threads.OTCHINGTHREADS

ON 4"% BOLTS IS A POOR INSTALLATION PRACTICE AND

MUSTBEAVOIDED4HISPRACTICELOCKSTHENUTONTO

THEBOLTWHICHTHENMAKESTHE4"%BOLTACTASA

FORGED HEAD BOLT $EEP GOUGING CAN REDUCE THE

BOLTSSTRENGTH

Proper Grade Plates 4HIN OR WEAK PLATES WILL

DEFORM AT LOW BOLT TENSION (IGH TORQUES WILL

PRODUCELOWERTENSIONVALUES4HEBOLTCOULDALSO

RIPTHROUGHTHEPLATEDURINGINSTALLATIONORBYBOLT

LOADING0LATESHOULDMEET!34-&SPECS4HE

MINIMUM SPEC ISA GRADE PLATEWHICH HAS LESS

THANDEmECTIONWHENTHELOADONTHEPLATEIS

INCREASEDFROMTOLBS

Hardened Steel Washers(ARDENEDSTEELWASHERS

SHOULDBEUSEDBETWEENTHEFORGEDHEADORNUTAND

THEPLATEWASHER4HEWASHERREDUCESFRICTIONAND

ENHANCESTHETORQUETENSIONRELATIONSHIP-INIMUM

GRADE SHOULD BE 4YPE !34- & SPEC AND

HOLESIZEINPLATEWASHERSHOULDBENOMORETHAN3/8"DIAMETERLARGERTHANBOLTSIZE!SPHERICALSEAT

WASHERCANALSOBEUSEDTOREDUCEFRICTION

Wooden Washers !LTHOUGH SELDOM USEDNOWADAYS WOODEN WASHERS HELP PREVENT THE

PLATE FROM CUTTING INTO MINE SCREEN MESH WHEN

PRESENT 4HE WOOD MAY CAUSE TENSION BLEED OFF

HOWEVER#AREMUSTBEUSEDTO WATCHFOR ROTTING

OFTHEWOOD

Perpendicular Installation "OLTS SHOULD BE

INSTALLEDASNEARPERPENDICULARTOTHEROCKSURFACE

ASPOSSIBLE"OLTSNOTPERPENDICULARTOTHEPLATEAND

ROCKSURFACEWILLBEMARGINALLYWEAKERANDWILLNOT

BE PRETENSIONED PROPERLY 4HE FOLLOWING EXAMPLE

USINGA5/

FORGEDHEADROCKBOLTINSTALLEDWITHFTLBSTORQUEILLUSTRATESTHESCOPEOFTHEPROBLEM



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Briston

Louisville

DSI Mining Products

1638 Alberta Ave.Saskatoon SK S7K 1R6CanadaPhone: (306) 244-6244Fax: (306) 931-3481

DSI Mining Products

1150 Kelly Lake Rd.Sudbury ON P3E 5P4CanadaPhone: (705) 673-3020Fax: (705) 673-5946

DSI Mining Products

154 14TH Ave.Rouyn-Noranda PQ J9X 2J5CanadaPhone: (819) 762-0901Fax: (819) 797-1367

DSI Mining Products

3900W 700SSalt Lake City UT 84104USAPhone: (801) 973-7169Fax: (801) 973-7172

DSI Mining Products

9344 Sunrise RoadCambridge, Ohio 43725USAPhone: (740) 432-7302Fax: (740) 432-2827

Fasloc - A DSI Company

447 Dupont Rd.Martinsburg, WV 25404USAPhone: (800) 332-3308Fax: (304) 274-4194

DSI Mining Products

Obreros de Cananea #2312Colonia ConstitucinZapopan, JaliscoMexicoC.P. 45180Tel. +52-33-3366-5794Fax. +52-33-3366-5803

DSI - Soprofint

Cerro Santa LuciaN 9771-A / 9801Quilicura, Santiago de ChilePhone: (56-2) 714-8800Fax: (56-2) 714-8814

DSI Mining Products

25 Pacific HighwayBennetts Green NSW 2290PO BOX 370 CharlestownAustraliaPhone: +61 2 4948 9099Fax: +61 2 4948 9956

DSI Mining Products

PO BOX 6059Homestead 1412Elandsfontein GautengSouth AfricaPhone: +27 11 878 6000Fax: +27 11 878 6811

DSI Mining Products

Max - Planck - Ring 140764 LangenfeldGermanyPhone: +49 2173 7902 25Fax: +49 2173 7902 40

DSI Mining & Tunneling Products

200 Bob Morrison Blvd.Bristol, VA 24201-3810USATel: 276.466.2743Fax: 276.466.1865

DSI Mining & Tunneling Products

1774 Mellwood AvenueLouisville, KY 40206-1756USAPhone: (502) 473-1010Fax: (502) 473-0707

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DSI Ground Support Mechanical Rockbolts

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