一般而言，卸压孔钻孔深度不小于有效桩长的三分之二，且越深越好，方能起到

一般而言，卸压孔钻孔深度不小于有效桩长的三分之二，且越深越好，方能起到较好的释放压力作用

結果 (英文) 1:

Generally speaking, the pressure relief hole drill depth is not less than the effective length two-thirds, and the harder the better, can play the role better release stress

結果 (英文) 2:

In general, the pressure relief hole drilling depth of not less than two-thirds of effective length, and the more the better, in order to play a better role in the release of pressure

結果 (英文) 3:

Generally speaking, the depth of the hole drilling is not less than 2/3 of the effective length of the pile, and the better the better, the better the release pressure.