螺旋钻机

It is a walking-frame rotary drill rig, suitable for industrial and civil piling construction.

该机是适应于工业与民用建筑桩基础施工的步履式螺旋钻机。

Numerical simulation software FLAC2D is used to simulate the failure mechanism of slender coal pillars (which are of much lower width to height ratios) during high wall mining of thick seam.

对特厚煤层条件下采用螺旋钻机开采细长窄煤柱的破坏过程进行了数值模拟。

The fracturing process induced by different excavation sequence under final highwall with auger mining was numerically simulated.

对到界边坡下采用螺旋钻机开采煤柱不同开采顺序引起的破坏过程进行了数值模拟。

Through the field tests, the machine reaches the aim to resolve effectively the difficult problem on direction control during horizontal drilling.

该设备经过现场试验，取得了理想的效果，有效地解决了水平螺旋钻机钻进过程中控向的难题。

Currently has a long auger, lime machine, High Pressure Jet Drilling Rig, strong drill Roofbolter more than 10 varieties of five series.

目前已形成长螺旋钻机、灰土桩机、高压旋喷钻机、强冲钻机、锚杆钻机五大系列10多个品种。