High Strength Underground Mining Drilling Support Tunnel Rock Anchor Bolt

Introduction of High Strength Underground Mining Drilling Support Rock Anchor BoltHigh Strength Underground Mining Drilling Support Rock Anchor Boltis a bolting solution for unstable ground conditions such as sand, gravel, silt, and clays, and in soft to medium fractured rock formations. self drilling rock grouting anchor consists of anchor nut, anchor plate, anchor coupler, hollow anchor bar, sacrificial drill bit High Strength Underground Mining Drilling Support Rock Anchor Bolts are successfully used for anchoring in poor ground, cohesive and non-cohesive soils, and in case of unstable boreholes. Main Applications of High Strength Underground Mining Drilling Support Rock Anchor Bolt* Road / rail construction and maintenance * Tunneling & Mining * Rural environments * Private residences * Special foundations * Avalanche protection structures   System Description of High Strength Underground Mining Drilling Support Rock Anchor Bolt1, hollow core with continuous hot-rolled outside thread 2, application as injection anchor without casing, especially for non-stable boreholes 3, self-drilling installation, utilization of the anchor bar as drill rod with a single-use drill bit 4, easy extension of the anchor bars by anchor coupler 5, grouting or development of the grout body either simultaneously with drilling using a rotary injection adapter or afterwards 6, assembly of the anchor head with the anchor plate and the nut, stressing and locking   DescriptionunitR25R32NR32NR32SR32SSR38NR51NT30NT40NT52T76NOuter Diametermm2532323232385130405276Inner Diametermm14.521.5202018.5233615212652Areamm225533136936940754889233180312741991Ultimate Tensile LoadKN2002802803604005008002606609291660Yield LoadKN1502302302803304006302205257301200Ultimate Tensile StrengthMpa784846758976983912897785822729837Yield StrengthMpa588695623759811730706665654573628Nominal Weightkg/m22.62.852.93.24.272.66.31015Pictures of High Strength Underground Mining Drilling Support Rock Anchor Bolt  /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1