鉆機頂柱 的英文怎麼說
中文拼音 [zhēnjīdǐngzhù]
鉆機頂柱
英文
drill column jack-
The preparations, drilling rig adjustment, pile distribution control, mixing verticality control, elevation measurement, elevation control of pile top and column bottom, curing agent choice and control of mixing speed and blending quantity, must be done well for strengthening soft soil foundation by mixing cement with soil in construction
在實踐中要做到6點： 1 ）調整好鉆機； 2 ）控制好柱的分佈位里與攪拌軸的垂直度； 3 ）測量好高程； 4 ）控制好樁頂、柱底高程； 5 ）選擇好固化劑； 6 ）控制好攪拌速度和摻加量。The result of simulation of model 8 ? 1 / 2 ? xhp2s bit shows that, the torque on the bit changes randomly, and the degree of the change increases with the increase of the weight on bit ; the change of the torque on the upper part of the drillstring is not so large as that on the string ' s lower part, and the rotary speed of the bit changes smoothly overall
對8英寸xhp2s鉆頭做了模擬，結果表明，鉆頭處受巖石的阻力扭矩是隨機變化的，並有負扭矩出現，扭矩的變化幅值隨靜鉆壓的增加而增加；鉆柱頂部轉盤施加的扭矩變化不如底部劇烈；鉆頭的轉速在局部有較小的波動，其總體變化較為平緩。
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