DSI Underground Systems Cable Bolts US 01

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Cable Bolts


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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

DYWIDAG THREADBAR 5

Trusses & Slings 6

Specialty Bolts 7

Fiberglass Bolts 8

Resins & 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

www.dsiunderground.com


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Minicage Cable Bolts (Plain & Bulb)

0.5", 0.6" and 0.7"Plain Cable Bolt

Bulbed Cable Bolt

0.5" Cable Bolt 0.6" Cable Bolt 0.7" Cable Bolt

Strand Diameter E0.500"

12.70mm

0.600"

15.24mm

0.700"

17.78mm


Product uncoated 7 wire low relaxation strand

Grade 270 K - 270,000 psi (1860 MPa) ultimate strength

Breaking strength, min 41,300 lbs (183.7 kN) 58,600 lbs (260.7 kN) 76,200 lbs (339 kN)

1% extension under load, min. 37,170 lbs (165.3 kN) 52,740 lbs (234.6 kN) 68,600 lbs (305.1 kN)

Elongation in 24 inch (610 mm) 3.5% minimum

Relaxation after 1000 hrs maximum 2.5% with initial load = 70% breaking strength maximum 3.5% with initial load = 80% breaking strength

Specifcation ASTM A416, CSA G279-75, CSA G279-M1985


Construction 1 center wire & 6 outer wires

Steel area nom. 0.153 in 2 (98.7mm 2 )nom. 0.217 in 2

(140mm 2 )nom. 0.304 in 2

(196mm 2 )

Standing pitch 12-16 diameter

Weight per 1000 ftWeight per 1000m

520 lbs775 kg

740 lbs1102 kg

1110 lbs1654 kg

Difference in wire size(center - outer)

min. 0.003"(0.076mm)

min. 0.004"(0.102mm)

min. 0.005"(0.127mm)

Dimensions

Physical Properties

Construction Details

Galvanized cable bolts available on request

+0.026"-0.006"

+0.66 mm-0.15 mm

+0.026"-0.006"

+0.66 mm-0.15 mm

+0.026"-0.006"

+0.66 mm-0.15 mm



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Installation Accessories

Cable Bolts

End Holding Device - Conventional Style

to hold cable bolt prior to grouting 2 straps 3 / 4" x 2 3 / 4" (19 mm x 70 mm) suitable for 2 " (51 mm) to 2.5" (64 mm) hole can be ordered separately and site installed if factory ordered, straps removed for shipping not available for double cable bolts

End Holding Device - Fish Hook Style

hooks swaged on with steel tubing hooks can be bent out to accommodateany hole size

for single or double cable bolts tting holds double cables together

0.5", 0.6" & 0.7" Machined Cable Grip - to fasten Plates rated for full load of cable bolt 1 1 / 4" (32 mm) for 0.5" cable bolts 1 1 / 2" (38 mm) for 0.6" cable bolts c/w 2 part gripper wedges available galvanized optional plastic cap to secure wedges during shipping

0.6" & 0.7" Cast Domed Cable Grip

- to fasten Plates rated for full load of cable bolt 2 " (51 mm) domed face c/w 2 part gripper wedges wedges available with or without

groove & retaining spring available galvanized optional plastic cap to secure wedges during shipping




Passive Spinnable Cable Bolt - for Resin Installation 0.6 " & 0.7" cable available resin anchored

bulbs provide resin mixing and anchoring accepts 1 1 / 8" square or hex male spinner available plain or galvanized cable available in any length factory assembled

Strand Lok available with minimum 4 ton or 12 ton terminal easy installation, no cement to mix dissipates impact shock

maintains bond between cable and resin grout enhanced one pass support bulge diameter and spacing variable ideal for con ned spaces superior shear strength for one pass support higher ultimate tensile installed with high strength low viscosity strand-loc resin resin compressive strength exceeding 100 MPA Youngs modulus 11-13 GPA custom cartridge diameter and length

Installation Procedure

drill a 1" hole to a depth which will allow the bolt to bottom out when fully inserted insert the Strand-Lok resin cartridges manually push the Strand Bolt into the resin to within 2' or 3' of full penetration Spin the Strand Bolt through the resin to complete the insertion and then continue spinningfor an additional 10 seconds at full insertion on tensioned installations allow suf cient time for the resin to gel and gain strength before torquing

Notes the 12 ton terminal is designed for where collar support is needed a recessed terminal has been designed to be used in close quarters where theprotruding termnal would be an obstruction a coupled extension drill steel has been designed to keep the "extension" drillhole size at 1"

Installation Accessories continued




0.6" & 0.7" Dogbone Cable Coupler rated for full load of cable bolt used to join cables for slings or trusses

used to wrap failing pillars requires 2 sets of wedges (included)

Grout and Breather Tubing " ID x 7 / 8" OD black poly tubing (400' roll) " ID x 7 / 8" OD high density grout tubing (400' roll)

" ID x5

/ 8" OD regular poly tubing (400' roll) 3 / 8" ID x " OD high density poly tubing (500' roll) black poly tubing rated for 100 psi yellow high density tubing rated for 200 psi

Installation Accessories continued




Cable Bolt

0.6" or 0.7" Passive and Tensionable

270 ksi, low relaxation cable per ASTM A416. Supplied in any length, black or galvanized cable. Point anchored active bolt, tensioned after

installation utilizing the hydraulic tensioning jack. Point-anchored passive bolt with pre-seated

head. Wedge barrel shaped to accept 1 1 / 8" hex orsquare male spinner.

Several options for anchoring in the resin areavailable: The bulbed cable bolt is designedfor point-anchoring in resin. It may also be fullygrouted with slow speed resin, or cement grouts.Bulbing is an effective means to center the boltin the drill hole, to mix the resin and to developbond for anchoring the bolt.

The Bond head is an additional bulb that can beformed on the end of the cable bolt.

Bulbs are provided to t hole sizes: 1" hole: strip cage 1 3 / 8" hole: plunge bulb 1 " hole: bond head Ultra low passive heads can be provided for low

clearance situations.

Cable Diameter 0.6" gr270 0.7" gr270

Weight 0.74 lbs/ft 1.11 lbs/ft

Bore Hole Diameter 1" to 1.375" 1" to 1.375"

Cross Sectional Area 140 mm 2 196 mm 2

Ultimate Strength [1000 lbs] 58.6 76.2

Yield Strength [1000 lbs] 46 68.6

Min. Elongation in 2ft 3.5% 3.5%

Typical Plate gr6 w/ 1 3 / 8" hole Grade 6

Also available are 0.5, 0.62 and 0.9 upon request.




CBJ-1 Cable Bolt Tensioning Jack

For installation of bearing plates

Specications

for 0.6" (15.2 mm) or 0.7" (17.8 mm) cable bolts maximum load 25 ton @ 10,000 psi (225 kN @ 70 MPa) stroke = 3" (75 mm) double acting hollow core ram aluminum construction - weighs only 10 lbs (4.5 kg) requires double acting hydraulic pump or hand pump L = 11.75" (300 mm) D = 4" (102 mm)

Parts

Seal Kit includes:

1 - 2.25" AN wiper 1 - 2.25" x 2.75" x 3.75" rod seal1 - 1.25" x 1.75" x 0.250" rod seal1 - 2.31" O-ring1 - 2.875" T-seal

1) Regularly ensure autogripperis screwed hand tight into thehollow core ram.

2) Ensure the cable strand is freefrom mud and dust. Also regularlyclean the autogripper wedges.




Torque Tension Relationship for CB1-1

Cable Jack with 3.4:1 Intensier

Specications

for 0.6" (15.2 mm) or 0.7" (17.8 mm) cable bolts stroke = 3" (75 mm) double acting hollow core ram aluminum construction - weighs only 10 lbs (4.5 kg) requires double acting hydraulic pump or hand pump L = 11.75" (300 mm) D = 4" (102 mm)

0.6" Cable Tensioner with 3.4:1 Intensier Pressure Vs Load (LBF)

2000 Psi Maximum Working Pressure

Note cylinder area = 5.01 in 2000 psi is the maximum pressure allowed for use with 0.6" cable

L o a

d ( L B F )

Pressure (Psi)

0 250 500 750 1000 1250 1500 17500

5,000

10,000

15,000

20,000

25,000

30,000

35,000

2000




Operating Procedure

For intensied cable truss tensioner

Slide assembly onto the tail of the cable untilthe tensioner nose is fully seated against thewedges of the dogbone/wedge barrel.

A minimum of one inch of cable tail shouldprotrude from the end of the autogripperassembly. (If the cable does not protrudefrom the back of the tensioner the minimumone inch length the jaws will not grip the cableproperly. There is signi cant risk that the cablewill strip the wedge teeth).

Pressurize the cylinder to the desired load(2,000 psi/17 ton maximum for the 0.6 x 30ton cable see appendix 1 for a pressureversus load plot). If the cylinder runs out oftravel before the load is reached, release thepressure and slide the cylinder on further andrepeat the tensioning process.

The following wear components are availablefor purchase from your local DSI supplier(appendix 2): Autogripper assembly

Autogripper wedges O-Ring kit Banana Nose

Ensure that all hydraulic ttings are tightenedbefore operation, and that the unit is in goodworking order. Check the following: There are no major dents in the housing. That the autogripper assembly (gold in color)

is fully tightened against the faceof the piston.

That the autogripper wedges are in goodcondition and are not chipped, dented ormissing teeth.

That there are no major leaks in the system.

Monitor during use the following The autogripper remains screwed in tight

against the face of the piston The gripper wedges do not become too dirty That the wedge teeth do not wear too badly.

The autogripper wedges are designed forreuse, but eventually need replacing.

Before placing the tensioner onto the cable,ensure the cable has minimal dirt and or dust onits surface. This dirt and dust will make it harderfor the wedges to grip the cable.




Cable Tensioner Mark2

For tensioning cables and installing plates

Specications

A light weight and unique way for pre-loadingcable bolts, the DSI Cable Tensioner Mark2 gripsthe end of the cable bolt and tensions it, leavingonly a short tail protruding from the bearing plate(approx. 6"). The Cable Tensioner is a singlehydraulic ram driven by an air/hydraulic pump orby machine hydraulics.

The jack weighs 25 lbs. The entire kit (jackand pump) weighs 51lbs.

Two grip handles allow for operation byone person.

Unit locks on the cable, until lanyard is pulledto release spring loaded grippers.

Can be con gured for all cable bolts, from 0.6"to 0.7" and the DSI 0.9" HITEN cable bolt.

Capacity: 48,500 lbs Bleed off: 15% i.e. cable lock-off load is 85%

of pulling force due to seating loss.(for a typical 12' bolt)

OperationInstall the plate and wedge barrel with wedge onthe end of the cable bolt.

Push the Cable Tensioner on. It will self-lock ontothe cable.

Tension bolt to the desired load per hydraulic gageincluded with the unit.

After stressing, the Cable Tensioner is easilyremoved by pulling on the lanyard to release theinternal grippers.




Installation Guidelines 28mm hole diameters are preferred. Hole depth is critical. Hole depth should be

approximately 155mm shorter than the boltlength.

This allows for suf cient tail to t accessories,roof plate, collar/wedges & Tensioner Unit.

After insertion of the chemical anchors the boltis rotated through the anchors while pushingthe bolt, fully, to the back of the hole.

It is important to follow the chemicalmanufacturers recommended mixing andhold times as printed on the chemical anchorcartons. DO NOT OVER MIX.

The tensioner unit is connected to the HI-TENStrand Bolt and tension applied.

For further details refer to DSIs Tensioner Unituser instruction guide.

Standard Lengths & Packaging Standard HI-TEN Strand Bolts lengths range

from 4100 to 8100mm. Collar/wedge assemblies are supplied

separately to the bolt. Non-standard requirements are available by

negotiation.

HI-TEN Strand Bolt

General Features The DSI HI-TEN Strand Bolt is a cable designed

to be installed as a long rock bolt which iscapable of being post-tensioned at the face,or out-bye, to loads of up to 27 tonnes usingthe DSI Tensioner Unit.

The HI-TEN Strand Bolt is manufactured from21 wire strand having a 12mm square, formixing chemical anchors, welded to one endof the strand.

The HI-TEN Strand Bolt has a special collarand segmented wedge, which can sustaincollar loads of between 57 and 60 tons.

The HI-TEN Strand Bolt is designed for highpre-tensioning using a point anchor system.

If full encapsulation is required, extra slowspeed chemical anchors of 20 minutes set timeare available.

The HI-TEN Strand Bolt can also be effectivelyused with cementitious grouts.

The HI-TEN Strand Bolt concept allows a

longer than seam height bolt to be installedat up to 30 from the vertical at the face,or out-bye, to supplement existing stratareinforcement. Compatible domed plates areavailable to be used with the HI-TEN StrandBolt.

The HI-TEN Strand Bolt system is patentpending.

Physical Properties

Yield Strength 108,000 lbs

Ultimate Tensile Strength 124,000 lbs

Uniform Elongation 3-4%

Mass Per ft 1.90lb

Cable (Strand) Diameter 0.9"




The Wedge Anchorage of the Cable Bolt

The anchorage of most cable bolts consists ofa wedge barrel and a 2- or 3-part wedge. Thewedge segments grip the cable by means of tooth

shaped threads which are forced into the surfaceof the cable wires.

Warning: If friction increases (due to corrosion),a larger F will reduce the clamping force. As Vincreases all other forces can only increase ifthe wedge can seat deeper into the barrel. If thewedge is restrained to do so (i.e. by corrosion ordirt-accumulation), the clamping force can not

increase with the pulling force causing slippagewhen the load on the cable bolt graduallyincreases during service life.

To avoid slippages during use, it is importantthat the cable bolt is fully stressed at time ofinstallation to a force equal to 0.5 Fu. (i.e. 50%of the capacity of the cable)

The clamping force W is highly dependent onthe friction between wedge and wedge hole.For normal friction conditions, the clamping forceW is more than 4 times the cable pulling force Vand it adjusts with the pulling force V.

When a wedge is properly seated, radial cracksmay develop indicating adequate seating.

The wedge can be supplied with a rubber O-ringor a metal spring ring holding the wedge segmentstogether.



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A R G E N T I N A

A U S T R A L I A

A U S T R I A

B E L G I U M

B O S N I A A N D H E R Z E G O V I N A

B R A Z I L

C A N A D A

C H I L E

C H I N A

C O L O M B I A

C O S T A R I C A

C R O AT I A

C Z E C H R E P U B L I C

D E N M A R K

E G Y P T

E S T O N I A

F I N L A N D

F R A N C E

G E R M A N Y

G R E E C E

G U AT E M A L A

H O N D U R A SH O N G K O N G

I N D O N E S I A

I T A LY

J A PA N

K O R E A

L E B A N O N

L U X E M B O U R G

M A L AY S I A

M E X I C O

N E T H E R L A N D S

N O R WAY

O M A N

PA N A M A

PA R A G U AY

P E R U

P O L A N D

P O R T U G A L

Q ATA R

R U S S I A

S A U D I A R A B I A

S I N G A P O R E

S O U T H A F R I C A

S PA I N

S W E D E N

S W I T Z E R L A N DTA I WA N

T H A I L A N D

T U R K E Y

U N I T E D A R A B E M I R AT E S

U N I T E D K I N G D O M

U R U G U AY

U S A

V E N E Z U E L A

USA DSI Underground Systems, Inc.9786 S Prosperity RoadWest Jordan, UT 84081, USA Phone: +1-801 973-7169Fax: +1-801 973-7172

DSI Underground Systems, Inc.447 DuPont Rd.Martinsburg, WV 25404, USA Phone: +1-800 332-3308Fax: +1-304 274-4194

DSI Underground Systems, Inc.700 Technology DriveSouth Charleston, WV 25309, USA Phone: +1-800 547-4751Fax: +1-304 553-0924

DSI Underground Systems, Inc.5400 Foundation Blvd.Evansvill e, IN 47725, USA Phone: +1-812 214-2968Fax: +1-888 309-0882

DSI Underground Systems, Inc.9344 Sunrise RoadCambridge, Ohio 43725, USA Phone: +1-800 457-7633Fax: +1-740 432-2827

DSI Underground Systems, Inc.26161 Old Trail Road

Abing don VA 2421 0-7 631 , USA Phone: +1-276 623-2784Fax: +1-276 623-8273

DSI Underground Systems, Inc.1774 Mellwood AveLouisville KY 40206-1756, USA Phone: +1-502 473-1010Fax: +1-502 473-0707

DSI Underground Systems, Inc.1032 East Chestnut StreetLouisville KY 40204-1019, USA Phone: +1-502 583-1001Fax: +1-502 583-7865

CanadaDSI Canada Ltd.3919 Millar AvenueSaskatoon SK S7P 0C1, CanadaPhone: +1-306 244-6244Fax: +1-306 931-3481

Please Note: This brochure serves basic informationpurposes only. Technical data and informationprovided herein shall be considerednon-binding and may be subject to changewithout notice. We do not assume any liabilityfor losses or damages attributed to the useof this technical data and any improperuse of our products. Should you requirefurther information on particular products,please do not hesitate to contact us. www.dsiunderground.com

DSI Canada Ltd.199 Mumford RoadUnit C&DLively ON P3Y 1L2, CanadaPhone: +1-705 692-6100Fax: +1-705 692-0441

DSI Canada Ltd.853 Boulevard RideauRouyn-Noranda, QC J9Y 0G3, CanadaPhone: +1-819 762-0901Fax: +1-819 797-1367

MexicoDS Internation al S.A. de C.V.Carretera a Base Area Militar No. 1002Bodegas 13, 14 & 15Parque Industrial FERRANSan Juan de Ocotn, Zapopan, JaliscoMxico CP 45010Phone: +52-33-3366-57-94Fax: +52-33-3366-58-03

BrazilDSI Underground BrasilRua Um, 276Distrito Industrial da bela FamaNova Lima/MG, BrazilPhone: +5 5-31-35 42 02 00Fax: +55-31-35 42 08 10

ChileDSI Chile Industrial Ltda.Las Encinas #1387

Vall e GrandeLampa, Santiago de Chile, ChilePhone: +56-2-596 96 20Fax: +56-2-596 96 69

ColombiaDSI Colombia S.A.SCarrera 43A No. 8 sur 15 Oficina 403Edificio Torre OviedoMedelln, ColombiaPhone: +57-4-403 12 00Fax: +57-4-403 12 01

PeruDSI Peru S.A.C.Calle Rodolfo Beltran No. 947Lima 1, PerPhone: +51-1-431 3157Fax: +51-1-638 3201

Documents

DSI Underground Systems Cable Bolts US 01