Coarse Pitch Threadform d2 except ensures thread is self cleaningthreadbars and accessories also readily availableCement or Resin GroutThreadbarNutPlateRock Bolts DELTAX Installation at Heads of T ID: 878677
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1 Rock Bolts are generally formed from sol
Rock Bolts are generally formed from solid threadbar systems, i.e. bar, nut, couplers and plates. The steel threadbar is used to bond unstable rock to stable sections, beyond the face, and requires loads. Rock bolts are fully bonded and unlike ground anchors are passive Unless it has been severely weathered, rock will usually allow for an open collapse. Solid threadbars offer the most efficient means of transferring diameter borehole. Due to the higher bond strength offered by rock compared to soil, rock bolts can be installed into ground anchors.Smaller boreholes are desirable, as drilling through rock can be time Fully threaded bar - can be cut and robust threadform that makes them Coarse Pitch Threadform (d/2, except ensures thread is self cleaning threadbars and accessories also readily available Cement or Resin Grout Threadbar NutPlate Rock Bolts & DELTAX Installation at Heads of The Valley Road Improvement Scheme, A465 South Wales Plus DYWIDAG-Systems International has Plus structural cross sections. Plus offers an increase in strength compared to traditional Threadbars. Plus strength of 670 N/mm an increase of 34% and an ultimate strength of an increase of 45%.In instances where construction tolerances within a concrete column, pre-cast segment or borehole are tight, the increased strength offered by Plus be reduced subs
2 equently, allowing for concrete cover re
equently, allowing for concrete cover requirements to be met or borehole sizes to become smaller.Compared to Plus can reduce the cross sectional area of steel required in a rock bolt, pile or ground anchor by up to 25% due to the increased strength.Despite the high strength, Plus is not sensitive to stress crack corrosion and hydrogen induced embitterment.The robust Plus thread is specially designed for rough site conditions The right-hand thread over the full length offers the possibility to fix Plus DYWIDAG-Systems International. Steel High Yield Threadbars are formed from a high tensile alloy steel. The bars are manufactured with a coarse left-hand thread over their full couplers can provide a bar. The bar is also manufactured with removal of dirt or debris as the bar is threaded into any female accessory, preventing cross threading and making bar is manufactured in accordance with the German Certificate of Approval (Deutsches Institut für Bautechnik), the system also offers 2005 (Steel Reinforcement of Concrete).yield strengths are: 2 for bar diameters 16 - 50mm appropriate industry practices relative to the carbon content of the steel. Welding measures.used in rock-bolting applications are product comes washers, wedge bosses to increase head plate articulation and full strength 2 +/- 5% All bar diameters 12.0m. Tolerances 18.
3 0m are available to order.suit customer
0m are available to order.suit customer requirements or supplied Rock Bolts & DELTAX Installation at Government House, Jersey Threadbar Key Features Left Handed Thread Coarse Pitch Threadform (d/2), Standard Load Range Technical Data StrengthYield StrengthStrengthCross-AreaThreadsThread Weight[mm][N/mm][kN][kN][kN][mm][mm][mm][kg/m]121101852011881.582018815713231423102.47252952462064912812.53.852837030825961632144.833248240233780436166.31366125104281,02040187.99407546295281,25745209.86501,1789828251,963552615.4157.51,8181,4411,2732,597632020.3863.5555 / 7002,2171,7581,5523,167692124.6675500 / 6002,6512,2091,6554,418822434.68 Accessories Static CouplerLock NutHexagonal NutDomed NutEye Nut SWL 2t Dia.LengthAFLengthAFLengthAFLengthWidthHeight[mm][mm][mm][mm][mm][mm][mm][mm][mm][mm][mm]163290323032402733628720361053240364536426696254011541404150414571106284512541454655415476112325214050505560465795135366015055556065N/AN/A1001404065160657065706070105155508020080858085808512018557.51022309080901009010013023063.51022601001151001151001151402357510824010080100100100120140250 Plus Threadbar Key Features Right Handed Thread Reduced Pitch Threadform (d3) Increased Load Range Capacity Technical Data StrengthYield StrengthStrengthCross-AreaThreadsThread Weight[mm][N/mm][kN][kN][kN][mm][mm][mm][kg/m]2031701422542182.00223042552133802582.98253933292
4 7549128103.852849341334561632114.8330566
7549128103.852849341334561632114.833056647439670734115.553577064553996240147.55431,1629738131,452481711.40501,5701,3151,0991,963561815.4057.52,0781,7401,4552,597632020.3863.52,5342,1221,7743,167692124.86753,5342,9602,4744,418822434.68 Accessories Static CouplerLock NutHexagonal NutDomed NutEye Nut SWL 2t Dia.LengthAFLengthAFLengthAFLengthWidthHeight[mm][mm][mm][mm][mm][mm][mm][mm][mm][mm][mm]183610036453235669622401104150364571106254512046554150761162850140465350604655801253055150506055655060851403565120556565706070105155438020070808090708512019050902108090801008010013020057.510225090100901209011513023063.511430010010510014510012514023075108250100120100130120150140250 Resin Cartridges offer quick installation for rock bolts and dowels used for the stabilisation of rock faces, cuttings and tunnels. The resin has a fast cure time, enabling the bolt to cartridges are used with and GRP rock bolts, where the bolt can be spun into the resin to achieve a full bond. The fast cure time of Faslocresin cartridges offers installation benefits for roped access work, as well as for rail possessions or night closures.For installation, the resin cartridges are placed in to a 38mm borehole, followed by the rock bolt, which is spun in using an air-powered spinning tool. This process ensures the two-part resin borehole to fill the annulus and achieve cure. Typical
5 installed bolt lengths range from 0.6m -
installed bolt lengths range from 0.6m - 2.3m, using one to four resin cartridges. Resin Cartridges offer: Fast installation and cure for rockbolts roped access installation, with slight expansion on nal cure -increased bond Increased permeability of boreholewall - for greater friction in rock. Greater load performance, due toresin and the rock. Increased lm shredding (to preventgloving), due to larger lleraggregate. Improved mixing between the tworesin components, through low resin Flat PlateFormed PlateSlotted Plateup to 15°up to 20°up to 55° well as acting as a reaction surface to plate, and it secures and transfers load from any facing system into the rock design phase as each project requires a different plate and it should not be assumed that they are standardized parts. However, for rock bolting, plates failure below the plate is rarely an issue.In order to transfer load from the rock bolt to the face efficiently, the plate should be secured tight to the face If a specific torque value is stated in the design, all nuts should be correctly nominal figure of 10kN/m should be adopted to ensure that all nuts are to be provided to ensure that the plate can be secured flush with the rock face. the plate and the rock bolt; different plates can increase or decrease the amount of articulation. Insufficient inside edge of the bearing plate b
6 efore rock face.DYWIDAG-Systems Internat
efore rock face.DYWIDAG-Systems International provide different plate types to provide increasing amounts of articulation. This range ensures that every project can be catered for. Borehole DepthBorehole Rock Bolt TypeThreads) Temperature[m][mm][mm][RPM / Sec][°C] Plus 150 / 20-3015 - 20 Plus DYWIDAG-Systems International has Plus structural cross sections. Plus offers an increase in strength compared to traditional Threadbars. Plus strength of 670 N/mm an increase of 34% and an ultimate strength of an increase of 45%.In instances where construction tolerances within a concrete column, pre-cast segment or borehole are tight, the increased strength offered by Plus be reduced subsequently, allowing for concrete cover requirements to be met or borehole sizes to become smaller.Compared to Plus can reduce the cross sectional area of steel required in a rock bolt, pile or ground anchor by up to 25% due to the increased strength.Despite the high strength, Plus is not sensitive to stress crack corrosion and hydrogen induced embitterment.The robust Plus thread is specially designed for rough site conditions The right-hand thread over the full length offers the possibility to fix Plus DYWIDAG-Systems International. Steel High Yield Threadbars are formed from a high tensile alloy steel. The bars are manufactured with a coarse left-hand thread o
7 ver their full couplers can provide a ba
ver their full couplers can provide a bar. The bar is also manufactured with removal of dirt or debris as the bar is threaded into any female accessory, preventing cross threading and making bar is manufactured in accordance with the German Certificate of Approval (Deutsches Institut für Bautechnik), the system also offers 2005 (Steel Reinforcement of Concrete).yield strengths are: 2 for bar diameters 16 - 50mm appropriate industry practices relative to the carbon content of the steel. Welding measures.used in rock-bolting applications are product comes washers, wedge bosses to increase head plate articulation and full strength 2 +/- 5% All bar diameters 12.0m. Tolerances 18.0m are available to order.suit customer requirements or supplied Rock Bolts & DELTAX Installation at Government House, Jersey Threadbar Key Features Left Handed Thread Coarse Pitch Threadform (d/2), Standard Load Range Technical Data StrengthYield StrengthStrengthCross-AreaThreadsThread Weight[mm][N/mm][kN][kN][kN][mm][mm][mm][kg/m]121101852011881.582018815713231423102.47252952462064912812.53.852837030825961632144.833248240233780436166.31366125104281,02040187.99407546295281,25745209.86501,1789828251,963552615.4157.51,8181,4411,2732,597632020.3863.5555 / 7002,2171,7581,5523,167692124.6675500 / 6002,6512,2091,6554,418822434.68 Accessories Static CouplerLo
8 ck NutHexagonal NutDomed NutEye Nut SWL
ck NutHexagonal NutDomed NutEye Nut SWL 2t Dia.LengthAFLengthAFLengthAFLengthWidthHeight[mm][mm][mm][mm][mm][mm][mm][mm][mm][mm][mm]163290323032402733628720361053240364536426696254011541404150414571106284512541454655415476112325214050505560465795135366015055556065N/AN/A1001404065160657065706070105155508020080858085808512018557.51022309080901009010013023063.51022601001151001151001151402357510824010080100100100120140250 Plus Threadbar Key Features Right Handed Thread Reduced Pitch Threadform (d3) Increased Load Range Capacity Technical Data StrengthYield StrengthStrengthCross-AreaThreadsThread Weight[mm][N/mm][kN][kN][kN][mm][mm][mm][kg/m]2031701422542182.00223042552133802582.982539332927549128103.852849341334561632114.833056647439670734115.553577064553996240147.55431,1629738131,452481711.40501,5701,3151,0991,963561815.4057.52,0781,7401,4552,597632020.3863.52,5342,1221,7743,167692124.86753,5342,9602,4744,418822434.68 Accessories Static CouplerLock NutHexagonal NutDomed NutEye Nut SWL 2t Dia.LengthAFLengthAFLengthAFLengthWidthHeight[mm][mm][mm][mm][mm][mm][mm][mm][mm][mm][mm]183610036453235669622401104150364571106254512046554150761162850140465350604655801253055150506055655060851403565120556565706070105155438020070808090708512019050902108090801008010013020057.510225090100901209011513023063.51143001001051001451001251402307510825010012010013012015014