slightly weathered rock

If we use MMA for bedrock consolidation grouting, the parameters of weakly weathered rock can be lifted to the level of slightly weathered or fresh rock.

用于基岩固结灌浆，能使弱风化岩体的参数提高到微风化或新鲜岩体的水平；

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The conclusions are as follows: ( 1) Because of bad physical mechanical property of rock mass, low strength, so many structural planes and minor faults which leads to weak strip after weathered, the homeostasis of the slightly weathered rock slope is serious.

得出以下主要结论：（1）浅变质岩风化层边坡岩体的物理力学性质差，强度低，坡体内构造面、小断层发育，风化后形成软弱带，导致浅变质岩风化层边坡自身稳定性差。

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The kinetic energy is more than 98 percent and energy from effective thrust force is less than 2 percent when drilling in slightly weathered rock or fresh rock.

在风化程度较低或新鲜岩层中钻进时，破碎岩石98%以上的能量来自系统的动能，而轴压力推动钻头位移所给出的能量不到2%；

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