digging depth

The results show that the maximum elastic specific energy in the wall of coal roadway is almost directly proportional to the square of digging depth and almost inverse proportional to the elastic modulus.

结果表明，煤层巷道两帮煤体中弹性比能的最大值与采深的平方近似成正比，与其弹性模量近似成反比。

The optimum parameters of the shovel, the influences of plane obliquity, working speed, digging depth and breadth of the shovel on the digging resistance were analyzed respectively.

分析了挖掘铲的铲面倾角、工作速度、挖掘深度、铲面宽度等因素对挖掘铲工作阻力的影响，以寻求最佳的工作参数。

At present, hidden interviewed by journalists digging depth and timely information has become common practice.

时下，隐性采访已成为新闻记者挖掘深度新闻和时效新闻的常用手段。

When the digging depth is greater than 34~ 36 meters in slight weathering hard rock or 28~ 30 meters in soft nature rock or in serious weathering hard nature rock, the tunnel scheme should be considered.

当微、弱风化硬质岩石挖深超过34～36米，软质岩石或强风化硬质岩石挖深超过28～30米时，可考察采用隧道方案的技术可行性。