It was found that the direction of rock fracturing can be controlled accurately by using slotted cartridge blasting.

试验结果表明，采用切缝药包爆破可以精确地控制岩石断裂方向。

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There are many omens existing before rock fracturing, which is an important research issue of rock mechanics and rock engineering.

岩石破裂存在多种前兆，它是岩石力学和岩石工程中的一项重要研究内容。

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The research results are important for surrounding rock fracturing mode of deep mine roadway and the corresponding stability reinforcement.

研究结果对于认识深部巷道围岩的破裂模式及其稳定性支护具有重要意义。

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Of course, the fly in the natural gas ointment is fracking, the hydraulic fracturing of underground rock to extract more gas and oil.

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When the drilling is finished, water, combined with chemicals designed to reduce friction and serve other purposes, is injected from the surface into the well shaft at very high pressures, thereby fracturing the shale rock formations far below, and making it possible to extract economically the natural gas embedded in the shale.

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Shale gas is extracted by tapping gas from shale rock using a process called hydraulic fracturing, or fracking.

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