weak rock mass 不良岩体
Weak Rock Creep 软岩蠕变
For Very Weak Rock 对于非常软弱岩石
piles embedded in weak rock 软岩桩基
red layered weak rock fillings 红层软岩土石混合填料体
weak rock 软弱岩石
char weak rock 炭质软岩
So study on failure law and support technique of stratified and weak rock roof, and to logically design project about reinforcing roof ,which have very important theoretical signification and engineering application value.
因此,对煤巷层状软岩顶板变形破坏规律进行进一步分析研究,并对加固顶板的方案进行合理设计,具有非常重要的理论意义及工程应用价值。
参考来源 - 煤巷层状软岩顶板破坏规律及支护研究Indicate: the change of temperature and pore press will produce certain influence to the stability of roadway, especially to weak rock.
表明:温度及孔隙压力的改变会对巷道的稳定性产生一定的影响,特别是对于软弱岩体。
参考来源 - 深部高应力巷道围岩稳定性数值模拟研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Also, in surface water, there is a weak acid, carbonic acid, not sulfuric acid, but carbonic acid that helps dissolve the rock.
另外，在地表水中存在一种弱酸，它是碳酸，而不是硫酸，而且是能帮助溶解岩石的碳酸。
Indicate: the change of temperature and pore press will produce certain influence to the stability of roadway, especially to weak rock.
表明：温度及孔隙压力的改变会对巷道的稳定性产生一定的影响，特别是对于软弱岩体。
The deformation amount of weak rock, which is often encountered in excavation of underground caverns, directly affects the stability and safety of caverns.
软弱岩石在地下洞室开挖中会经常遇到，其变形量的大小，直接影响着洞室的稳定与安全。
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