运用人工智能专家系统的原理和构造方法，采用VB语言创建重力坝坝基岩体分级专家系统。
The principles and construction of artificial intelligence expert system are applied to establish, with VB language, a rock classification expert system for concrete gravity dam foundation.
采用自行研制的重力杠杆式岩石蠕变试验机，并配备三轴压力室，对紫色泥岩实施分级加载三轴蠕变试验。
Triaxial creep test under stepwise loading is made for purple mudstone with the authors-developed gravitation lever style rock creep test machine and triaxial pressure cell.
挡墙高度比较高时也可采用分级式的挡墙，可以节省工程材料的用量，比较经济，同时比纯重力式的更美观。
Wall height is higher also can use classification type retaining wall, can save the engineering material consumption, more economical, and more beautiful than the pure gravity.
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