In practice, it indicates that the karst rock classification for this tunnel is reasonable, which can be taken as a reference for other similar projects.
实践表明，本工程岩溶围岩分级是合理的，对其他同类工程可提供借鉴。
This paper systematically summarizes the results of researching the soft rock classification, attribution and judgement of China′s coal mine drifts;
本文系统地总结了我国煤矿巷道在软岩分类、软岩属性及软岩判定等方面的研究成果；
Tunnel surrounding rock classification history mainly on railways was introduced and analyzed; the surrounding rock classification is the basic data for tunnel construction.
围岩分级是隧道建设的基础资料，对以铁路为主的隧道围岩分级历史作简要回顾。
The method is very simple to operate, which provides intelligentization of blasting construction with strong supports, and at the same time which pioneers new world of rock classification.
该方法简单易行，为整个爆破施工的智能化提供有力的支撑，同时也为岩石分级方法的更新开辟了新天地。
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.
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。
It is thought that the strength of jointed rock masses lies between the strength of intact rock and the strength of rock mass with discontinuities, and is related to rock classification indices.
对于节理化岩体，由于认为强度介于完整岩石强度与结构面岩体强度之间，并与岩体的质量分类指标有关。
It is thought that the strength of jointed rock masses lies between the strength of intact rock and the strength of rock mass with discontinuities, and is related to rock classification indices.
对于节理化岩体，由于认为强度介于完整岩石强度与结构面岩体强度之间，并与岩体的质量分类指标有关。
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