SPLIT SET Stabilizers SS-46

1 Specifications and performanceThe SPLIT Set stabilizer is a slotted steel tube,with one end tapered for easy insertion into a drillhole. The other end has a welded ring flange tohold the bearing stabilizer is inserted into a hole slightlysmaller in diameter than the tube, using a simpledriver tool fitted to the drill. As the tube enters, itsdiameter is compressed and the slot partiallycloses. This exerts radial forces along the length ofcontact with the rock, providing the friction whichholds the rock together. The driving force of the drillactively loads the bearing plate against the Rollforms SPLIT Sets feature apatented Ring Indexing feature. This allows fordetermining the length of an installed SPLIT and plates are available standard orgalvanized, made in accordance with ASTM F 432-95 where applicable. Code stampingson the tube show its size, date and place ofmanufacture, and heat lot of SS-46 SPLIT Setstabilizers are in.

2 (46 mm) in Stabilizers aretypically packaged 150 per see Utility Hangers on page tubeStandardGalvanizedLengthWeightComm. (mm)Lb.(kg)Lb.(kg)36(914) ( ) ( )9032266042(1067) ( ) ( )9032278548(1219) ( ) ( )9032275160(1524) ( ) ( )9032233072(1829) ( ) ( )9032234878(1981) ( ) ( )9032267884(2134) ( ) ( )9032175390(2286) ( ) ( )9032268696(2438) ( ) ( )90321761102(2591) ( ) ( )90322694108(2743) ( ) ( )90321779114(2896) ( ) ( )90322702120(3048) ( ) ( )90321787126(3200) ( ) ( )90322710132(3353) ( ) ( )90322355138(3505) ( ) ( )90322728144(3658) ( ) ( )90322363 SPLIT SET Stabilizers SS-46applicable, providing aload capacity of 15 tons( metric tons) with SS-46 tube has a nominaloutside diameter of inches (46mm). The length chosen should bethe same as with other types of rockbolts, and installed with the stabilizer is installed with thesame drill used to make the SS-46 SPLIT Set Stabilizers are commonlyinstalled with jumbos.

3 Almost any mountedpercussive or hydraulic drill will have sufficientimpact power for installing SS-46 driver toolsA simple driver tool adapts the drill for easystabilizer insertion. One end fits the tube; the otherfits the rope-threaded drill genuine SPLIT Set driver tools are made ofhigh-strength heat-treated alloy steel, designed forlong life, and precision-made for the proper rope-threaded driverInstalling the SS-46 stabilizerSS-46 utility hangersSplit Set utility hangers are available in 18and 24-inch (46 and 61-cm) tube lengths tosupport light loads such as cables, vent tubing,and pipes. SS-46 driversThread sizeWeightComm. (mm)Lb.(kg)1-1/4(32) ( )903224481-1/2(38) ( )90322496T-38(38) ( )90322587 Special tools are available on utility (mm)Lb. (kg) (457) ( ) 9032256124(610) ( ) 90322579 Galvanized18(457) ( ) 9032264524(610) ( ) 90322652SS-46 plateStandardGalvanizedDimensionsWeightC omm.

4 No. WeightComm. (mm)Lb. (kg)Lb. (kg)Domed plate6 x 6 x (150 x 150 x 4) ( ) ( ) 90322389 Domed plate,Australian version6 x 6 x (150 x 150 x 4) ( ) ( ) 90322371 Domed bearing plateSplit Set domed bearing plates uniquely combinehigh strength with light weight, and are integralparts of the SPLIT Set system. Plates meet ASTM F-432-95 standards for Grade 3 plates whereDomed bearing plateBit selection and drillingTo select the correct drill bit diameter for meetingthe recommended initial anchorage of 6 to 9 tons,drill several holes with bit diameters ranging from1-5/8 to 1-3/4 inch (41 to 45 mm). Drill each hole atleast 2 inches (5 cm) longer than the bolt each hole and record the bit size. In soft ground, a bit may drill a holelarger than its diameter. In hard abrasiveground, the hole may be the same diameteras the into each hole an SS-46 SPLIT Set stabilizerfitted with a pull collar and spacer as the driving time for each stabilizer.

5 Afterinsertion, observe the amount of slot closure insideeach determine anchorage, perform a pull test(page 4). Align the pull tester with the stabilizer,and pressurize it until the stabilizer slips in the to be sure that it is actually the stabilizerthat has slipped. (When building up the pull load onthe stabilizer, various adjustments may occur suchas realignment of the tester housing, bearing platesettling, or localized rock crushing. These must notbe mistaken for tube slippage.)Once the bolt has slipped in the hole,pressurize the tester pump until the bolt slipsagain. The same pull load should causesubsequent test dataAfter the above pull tests arecompleted, draw two graphs:(a) Anchorage versus bitdiameter.(b) Anchorage versus the first graph to determine thecorrect bit size for your particular groundcondition.

6 As the bit wears, the hole willbecome smaller and friction will increase untilthe bit is replaced or the drill can t drive the the second graph to establish correct drivingtime required for this ground and bolt length. With agiven bit, drill, bolt length, rock characteristic andconstant pressure, insertion time will be proportionalto initial s important to establish this data for use in laterspot checks, to assure that proper installationtechniques are still being installation and pull testingSS-46 WeightComm. collarlb.(kg)andspacer ( )90321647 Anchorage, tons121110987654321045 mm(13/4 in.)44 mm43 mm41 mm(15/8 in.)42 mmRecommendedinitial anchorage(6-9 tons)Bit range for this installationDecreasing bit diameter(a) Anchorage versus bit diameterAnchorage, tons1211109876543210 Driving time, anchorage(6-9 tons)(b) Anchorage versus driving timeExpecteddrive timefor properanchorageApplication Engineering ServiceThe SPLIT Set stabilizer is a unique rockstabilization and support system.

7 It interacts with the rock differently from other rockbolts. For this reason, the SPLIT Set Group offers afree application engineering service to assist you inthe selection of the proper SPLIT Set configurationfor your needs. We will also assist in determiningthe best way to use your existing equipment for thejob, the best drilling procedure, and appropriatetools and accessories for your equipment andspace urge you to take advantage of this sales representative will be pleased to makethe pull test equipmentThe pull tester consists of two assemblies: thehydraulic portion which includes the cylinder, gage,pump, hose and adapter; and themechanical portion which includes theclaw, housing, U-shaped bushing,spindle and the bushing removed, theclaw can be slid over the pullcollar which has beeninstalled with the the housing andcylinder are raised, thebushing can be inserted betweenthe nut and the cylinder.

8 The nut is thentightened to take up pump is then actuated to raisecylinder pressure, pulling thestabilizer slightly out of the holethrough the bearing gage reading at slipindicates the holding force. Thedevice can be used for slip loads up to 20 US tons ( metric tons).Nothing contained in this brochure is intended to extend any warranty or representation, expressed or implied, regarding the products described herein. Any such warranties or other terms and conditions of sale of products shall be in accordance with International Rollforms standard terms and conditions of sale for such products, which are available upon pull testerDescriptionWeightCommLb.(kg) tester ( ) 90321597 Mechanical ( ) 90321902 Hydraulic ( ) 90321910 Hydraulic ( ) ( ) ( ) 90321878 Hydraulic ( ) 90321886 Gage ( ) 90321894 Mechanical ( ) ( ) ( ) ( ) 90321845 Hex ( ) 95084711 2001 International Rollforms, Inc.

9 Form 16517-A Printed in USAI nternational Rollforms, Box 5426 Deptford, NJ 08096 Phone: 1-888-561-4200 orFax: 1-856-401-8583