borehole

Borehole hydromining is a kind of safe and efficient new mining method .

钻孔水力采煤是一种既安全、又能极大地提高资源利用率的新的采矿方法。

Cross check in cross-borehole shows that root-mean-square error of predicted porosity of simple cokriging is less than 10% compared with that of linear re-gression method.

井间交证明,简单协克里格法预测孔隙度的均方根误差比线性回归法小10％以上。

It is found that the rational located destressing boreholes can induce structural failure of the surrounding rock-mass,consequently the high stress move deeply in the rock-mass,and the stres...

在卸孔和锚网联合支护后改善了围岩附近的应力环境,改变了围岩破坏的时空,控制围岩变形和破坏具有突出的优越性.

It's a mean of geotechnical investigation, including borehole surveying, costeaning, trenching exploration, test pitting, hole exploration, geophysical exploration and penetration sounding.

岩土工程勘察的一种手段，包括钻探、井探、槽探、坑探、洞探以及物探、触探等。