The text show the method to transact soft base under subgrade by mudjack, plane furnish, hole site, confirm pressure, deep of bore and technics flow of mudjack.
简要说明压浆法处治路基下软弱地基的方法，平面布置、孔径，确定压力、钻孔深度，以及压浆工艺流程。
If the section is a circular arc in the spatial slanting plane, the circular arc is the extremely reasonable bore hole path curve for slide drilling in minimum curvature method.
在此方法中，假设井段是空间斜平面上的圆弧，对于滑动钻进方式，圆弧是非常合理的井眼轨迹曲线。
When the bore hole-top-enclosed grouting method is used to conduct high-pressure curtain grouting, shallow weathered broken rock is easy to be split, resulting in excessive grout loss.
采用孔口封闭灌浆法进行高压帷幕灌浆时，对于浅层风化破碎岩体易产生多次劈裂而流失过多浆液造成浪费。
This paper proposes that Poisson's ratio of rock mass and in-situ stress are directly determined using optimization method according to measured strains obtained from bore hole stress relief process.
本文根据孔壁应力解除法获得的量测应变，提出了采用最优化方法直接确定岩体的泊松比和原始地应力。
At present, this method can only estimate the completeness of the stake when detecting the bore-hole stake but is incapable of detecting the intensity of it.
目前，采用该法检测钻孔桩只能准确评估桩的完整性，但是对于桩的强度检测还不能实现。
It is researched that the bore-hole transient electromagnetic method is applied to detect the water-bearing structures in advanced face of underground coal mines.
利用瞬变电磁法在煤矿井下独头巷道开展了超前探测含水构造的试验研究。
It is researched that the bore-hole transient electromagnetic method is applied to detect the water-bearing structures in advanced face of underground coal mines.
利用瞬变电磁法在煤矿井下独头巷道开展了超前探测含水构造的试验研究。
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