頂板錨桿 的英文怎麼說
中文拼音 [dǐngbǎnmáogǎn]
頂板錨桿
英文
roof bolt-
( 7 ) the destroyed area came into being in the condition of supports, such as tensile at vault and floor, shearing at nance and corner of wall
而且，錨桿支護對圍巖變形有較好的控製作用， 3 . 5m長錨桿可使拱頂下沉下降40左右，底板隆起下降34 。The anchorage force of bolt, the displacement of deep surrounding rock, and the surface displacement of the gateway were comprehensively observed, indicating that the testing entry affected by dynamical mining pressure still keeps stable, achieving a good supporting effect
錨桿受力、圍巖深部位移、頂板離層及巷道表面位移綜合觀測表明，受回採動壓影響后，試驗巷道穩定，支護效果好。Discussin on bolt and cable supporting technique of the comples roof
復合頂板巷道錨桿錨索支護技術探討Research on lateral pressure in truss rod for support of loose roof
錨拉支架支護散體頂板時拉桿的橫向受力研究The latest constructing machine and the newest technology were adopted to ensure that the borehole is perpendicular to the rock face of roof and that the depth of borehole and the torsional moment of the anchoring bolt meet the design requirement
採用最新錨桿施工機具及工藝，保證鉆孔垂直於頂板巖面，孔深及錨桿扭矩滿足新型機械錨桿的設計要求。Through inversion analyzing the results of inspection and observation which was applied the multipoint displacement measures and the drilling anchor stress measures to the top surface in the xianggui gypsummine eastern workings, this article will attempt to propose the deformation law of stope terrane after the underwater mine area, which provided a reliable basis for taking measures to control the strata movement
摘要為了研究湘桂石膏礦的巖體變形規律，對該礦東采區頂板巖孔多點位移計觀測和鉆孔錨桿應力計檢測的結果進行綜合反演分析，提出了水下礦區開挖后采場巖層的變形規律，為採取有效措施控制巖層移動提供了依據。On bolting support of roadway in extremely soft seam of coal mine with complex roof
復合頂板極軟煤層巷道錨桿支護技術研究Bolting technique in the outburst seam entry with high stress and composite roof
高應力復合頂板突出煤層巷道錨桿支護技術研究Expansion shell bolt
漲殼式頂板錨桿Bolt supporting technique for composite roof in tunlan mine
屯蘭礦復合頂板巷道錨桿支護技術與實踐Support test of roof - bolting with cable anchor mesh used in an actual mining roadway with large - sectional composite roof
大斷面復合頂板回採巷道錨桿錨索網支護試驗The underground tests show that the deformation and roof delamination of roadway surrounding rock can be effectively reduced by means of great increase of the bolt pretensioned stress, the steel strip plays an important role in the rock bolting system, and there exsits a critical value for pretensioned stress, up to or beyond which the rock bolting can effectively control the deformation and damage of the surrounding rock
井下試驗表明，大幅度提高錨桿預應力可顯著減小巷道圍巖變形，有效控制頂板離層；鋼帶在預應力支護系統中起非常重要的作用；錨桿預應力存在臨界值，達到或超過臨界值后錨桿支護可有效控制圍巖變形與破壞。Bolt and truss supporting technology of combined roof in the below coal roadway of near coal seams
近距離煤層下層煤巷復合頂板錨桿與桁架支護技術分享友人