Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21D - Shafts; Tunnels; Galleries; Large underground chambers › E21D 21 - Anchoring-bolts for roof, floor, or shaft-lining protection
Patents for E21D 21 - Anchoring-bolts for roof, floor, or shaft-lining protection (4,377)
05/2014
05/07/2014CN203584446U 一种收缩滑动式变向锚具 A Deflated sliding change to Anchorage
05/07/2014CN203583474U 锚索孔口专用止水器 Anchor orifice special sealing device
05/07/2014CN103775126A 一种有地下水渗出时的洞室初期支护施工方法 A cavern there early support construction method when groundwater seeping
05/07/2014CN103774791A 一种frp筋连接装置、连接方法及锚杆 One kind frp tendons connecting device, connection method and bolt
05/07/2014CN103774661A 反栓管式锚杆 Anti-tube anchor bolt
05/07/2014CN103774660A 圆形聚能爆破孔注浆锚固管式锚杆 Round Shaped Tube blast hole grouting anchor bolt
05/07/2014CN103774659A 圆饼状抗滑键管式锚杆 Round pie anti-slide button tubular anchor
05/07/2014CN103774657A 扩孔柱状抗滑键注浆锚固锚杆 Reaming against sliding key pillar anchor bolt grouting
05/07/2014CN103774656A 顺栓管式锚杆 Cis-tube anchor bolt
05/07/2014CN103774655A 圆饼状加筋抗滑键管式锚杆 Round pie reinforced anti-slide button tubular anchor
05/07/2014CN103774653A 线形聚能爆破注浆锚固管式锚杆 Linear Shaped blast tube grouting anchor bolt
05/07/2014CN103774652A 顺口防止从锚孔中拔出的预应力锚杆 Unhesitatingly pulled out from the anchor to prevent the hole prestressed anchor
05/07/2014CN103774651A 橄榄状抗滑键注浆锚固支护爆破锚杆 Olive-shaped support against sliding key grouting anchor bolt blasting
05/07/2014CN103774650A 条形加筋抗滑键管式锚杆 Submit reinforced anti-slide button tubular anchor
05/07/2014CN103774648A 一种防止从锚孔中拔出的预应力锚杆 A method of preventing pull out from the anchor bolt holes prestressed
05/06/2014US8714883 Friction bolt
05/01/2014US20140119840 Manufacture of Cable Bolts
05/01/2014US20140119839 Expandable mine bolt
04/2014
04/30/2014CN203572600U Surrounding rock stress monitoring early warning system based on step type full length slip-casting monitoring anchor poles
04/30/2014CN203570332U High prestress pressure yielding and equalizing coupling anchorage device used for soft rock supporting
04/30/2014CN203570331U Mine self-locking anchor rod
04/30/2014CN103758552A Hole-expanding type anchor rod and construction technology thereof
04/30/2014CN103758551A Multistage anchoring type resin anchor rod and anchoring method thereof
04/30/2014CN103758550A Liquid-expansion type yielding anti-seismic high-ground-temperature-resistant anchor bolt
04/30/2014CN103758547A Sliding type advanced support structure
04/30/2014CN103758124A Anchorage supporting anticorrosion anchor rod
04/30/2014CN102562108B High-strength and light-duty hollow anchor rod and processing method of hollow anchor rod
04/29/2014US8708607 Rock bolt with mechanical anchor
04/23/2014CN203559919U Anchor rod stress system for monitoring rock burst
04/23/2014CN203559918U Mining spacing distribution energy absorption super long combined anchor rod
04/23/2014CN203559908U Supporting structure for roadway baseplate
04/23/2014CN103742179A Circular truncated cone type anchor rod anchoring technique
04/23/2014CN103742178A Deep underground roadway support mechanism
04/23/2014CN103742177A High mine pressure roadway support design method
04/23/2014CN103742171A Mining roadway coal pillar reinforcing method
04/23/2014CN102562099B Method for carrying out rapid face excavation construction of loess tunnel by double rows of small conduits
04/23/2014CN102296975B Bolt-prestressing device
04/22/2014CA2876594A1 Rock bolting system, method of installing rock bolts, and flexible bolt centralizer
04/22/2014CA2792592A1 Rock bolting system, method of installing rock bolts, and flexible bold centralizer
04/17/2014US20140105690 Tension Cable Bolt
04/16/2014EP2719858A1 Constant-resistance and large deformation anchor cable and constant-resistance device
04/16/2014CN203547775U Segmentation yielding anchor rod
04/16/2014CN203547774U Supporting device for glass fiber reinforced plastic anchor pole supporting plate
04/16/2014CN203547773U Channel combined support structure suitable for slowly inclined stratified rock mass
04/16/2014CN203547769U Device for improving hole-forming efficiency and anchoring performance of anchor rod and anchor cable of roadway base plate
04/16/2014CN103732861A Expandable mine bolt
04/16/2014CN103726861A Expandable inverted hook rock-surrounding type anchor rod
04/16/2014CN102587944B Soft rock-stratum small-section tunneling advance supporting technology
04/15/2014US8696249 Rock bolt and rock bolt component
04/10/2014US20140099167 Mine roof bolt assembly
04/09/2014CN203531938U Constant-resistance extendable anchor
04/09/2014CN203531937U Surrounding rock supporting yielding anchor rod device
04/09/2014CN203531936U Anchor rope anchoring end device with reversely-outward claws
04/09/2014CN203531935U Mine multi-steel-strand combined support device
04/09/2014CN203530975U Anchor bolt
04/09/2014CN103711508A Highly-shearing-resistant anchor rod with mutually matched steel wire ropes and circular truncated cone bodies
04/09/2014CN103711507A Method for controlling deformation of large broken rock zone roadway by using multi-steel stranded wire combined supporting device
04/09/2014CN102650212B Construction method for protecting partition wall in double-arch tunnel through temporary support of middle pilot tunnel
04/09/2014CN102465706B Digging method for vein-following developing roadway of inclined stratified rock body
04/09/2014CN101280686B Improved cable bolt
04/03/2014WO2014049529A2 Installation of stressing assemblies
04/02/2014CN203515657U Vertical wall-mounted coal bunker without coal feeder chamber
04/02/2014CN203515630U Anchor cable anchorage device
04/02/2014CN203515629U Anchor rod capable of conducting continuous fastening
04/02/2014CN203515628U Friction-type constant-resistance large-deformation anchor rod
04/02/2014CN203515627U Rotatable direction-changing anchor rod
04/02/2014CN203515626U Anchor rod used for detecting anchor rod axial force and bending moment
04/02/2014CN203515625U Flexible metal anchor rod
04/02/2014CN203515623U Reinforcing anchor rod
04/02/2014CN103696792A Multi-stage conical synchronous expansion anchor rod
04/02/2014CN103696791A Anchoring energy-absorbing anchor rod device for controlling deep rock mass
04/02/2014CN103696790A Shear type expansion anchor rod and application thereof
04/02/2014CN103696789A Squirrel cage type anchor cable for mine
04/02/2014CN103696788A Abandoned roadway timbering device and construction method of fully mechanized coal mining face passed through abandoned roadway
04/02/2014CN103696787A Deformed steel bar high-pressure grouting bolt and supporting method for reinforcing roadways
04/01/2014US8685303 Coated mining bolt
03/2014
03/26/2014CN203499712U Novel anchor rod integrating hole sealing, grouting and anchoring
03/26/2014CN203499701U Guide positioning connecting structure for feet-lock bolt of steel frame of tunnel
03/26/2014CN103670473A Anchor bolt fastening force status indication washer
03/26/2014CN103670472A Full-length anchoring-supported compatible-deformation anchoring device
03/26/2014CN103670471A Locally-deformed power energy absorption anchor rod
03/26/2014CN103670470A Full coal roadway safe and speedy drivage supporting method
03/26/2014CN103670469A Expansion grouting anchor rod
03/26/2014CN103670468A Pressing-allowing bottom-corner casing pipe
03/26/2014CN103670467A Grouting anchor cable
03/26/2014CN103670465A Supporting frame of roadway surrounding rock
03/20/2014WO2014043470A1 Cable bolt
03/20/2014WO2014040116A1 Method and system for stabilising earthen formations
03/19/2014CN203488199U Threaded steel type resin anchor pole
03/19/2014CN103643978A Super-long anchor rod
03/19/2014CN103643977A Full-anchor partition pressure transferring grouting anchor rod and application method thereof
03/13/2014WO2014036615A1 Drill bit
03/13/2014US20140072372 Tandem Plate for Friction Rock Stabilizer
03/12/2014CN203476370U Anchor rod and anchor cable fracture safety protection cap
03/12/2014CN203476369U Buffer device for anchor cable and anchor cable system
03/12/2014CN203476368U Novel rod of shell-expansion anchor rod and processing mould of novel rod
03/12/2014CN203476338U Supporting structure for deep well ingate
03/12/2014CN103628904A Fixing pile and protection net device
03/12/2014CN103628889A Quick sealing method for excavating phyllite stratum tunnel
03/12/2014CN102536279B Elastic and flexible anchor rod
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